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• Common Live Upgrade problems

  - by user12611829

  As I have worked with customers deploying Live Upgrade in their environments, several problems seem to surface over and over. With this blog article, I will try to collect these troubles, as well as suggest some workarounds. If this sounds like the beginnings of a Wiki, you would be right. At present, there is not enough material for one, so we will use this blog for the time being. I do expect new material to be posted on occasion, so if you wish to bookmark it for future reference, a permanent link can be found here. Live Upgrade copies over ZFS root clone This was introduced in Solaris 10 10/09 (u8) and the root of the problem is a duplicate entry in the source boot environments ICF configuration file. Prior to u8, a ZFS root file system was not included in /etc/vfstab, since the mount is implicit at boot time. Starting with u8, the root file system is included in /etc/vfstab, and when the boot environment is scanned to create the ICF file, a duplicate entry is recorded. Here's what the error looks like. # lucreate -n s10u9-baseline Checking GRUB menu... System has findroot enabled GRUB Analyzing system configuration. Comparing source boot environment file systems with the file system(s) you specified for the new boot environment. Determining which file systems should be in the new boot environment. Updating boot environment description database on all BEs. Updating system configuration files. Creating configuration for boot environment . Source boot environment is . Creating boot environment . Creating file systems on boot environment . Creating file system for in zone on . The error indicator ----- /usr/lib/lu/lumkfs: test: unknown operator zfs Populating file systems on boot environment . Checking selection integrity. Integrity check OK. Populating contents of mount point . This should not happen ------ Copying. Ctrl-C and cleanup If you weren't paying close attention, you might not even know this is an error. The symptoms are lucreate times that are way too long due to the extraneous copy, or the one that alerted me to the problem, the root file system is filling up - again thanks to a redundant copy. This problem has already been identified and corrected, and a patch (121431-58 or later for x86, 121430-57 for SPARC) is available. Unfortunately, this patch has not yet made it into the Solaris 10 Recommended Patch Cluster. Applying the prerequisite patches from the latest cluster is a recommendation from the Live Upgrade Survival Guide blog, so an additional step will be required until the patch is included. Let's see how this works. # patchadd -p | grep 121431 Patch: 121429-13 Obsoletes: Requires: 120236-01 121431-16 Incompatibles: Packages: SUNWluzone Patch: 121431-54 Obsoletes: 121436-05 121438-02 Requires: Incompatibles: Packages: SUNWlucfg SUNWluu SUNWlur # unzip 121431-58 # patchadd 121431-58 Validating patches... Loading patches installed on the system... Done! Loading patches requested to install. Done! Checking patches that you specified for installation. Done! Approved patches will be installed in this order: 121431-58 Checking installed patches... Executing prepatch script... Installing patch packages... Patch 121431-58 has been successfully installed. See /var/sadm/patch/121431-58/log for details Executing postpatch script... Patch packages installed: SUNWlucfg SUNWlur SUNWluu # lucreate -n s10u9-baseline Checking GRUB menu... System has findroot enabled GRUB Analyzing system configuration. INFORMATION: Unable to determine size or capacity of slice . Comparing source boot environment file systems with the file system(s) you specified for the new boot environment. Determining which file systems should be in the new boot environment. INFORMATION: Unable to determine size or capacity of slice . Updating boot environment description database on all BEs. Updating system configuration files. Creating configuration for boot environment . Source boot environment is . Creating boot environment . Cloning file systems from boot environment to create boot environment . Creating snapshot for on . Creating clone for on . Setting canmount=noauto for in zone on . Saving existing file in top level dataset for BE as //boot/grub/menu.lst.prev. Saving existing file in top level dataset for BE as //boot/grub/menu.lst.prev. Saving existing file in top level dataset for BE as //boot/grub/menu.lst.prev. File propagation successful Copied GRUB menu from PBE to ABE No entry for BE in GRUB menu Population of boot environment successful. Creation of boot environment successful. This time it took just a few seconds. A cursory examination of the offending ICF file (/etc/lu/ICF.3 in this case) shows that the duplicate root file system entry is now gone. # cat /etc/lu/ICF.3 s10u8-baseline:-:/dev/zvol/dsk/panroot/swap:swap:8388608 s10u8-baseline:/:panroot/ROOT/s10u8-baseline:zfs:0 s10u8-baseline:/vbox:pandora/vbox:zfs:0 s10u8-baseline:/setup:pandora/setup:zfs:0 s10u8-baseline:/export:pandora/export:zfs:0 s10u8-baseline:/pandora:pandora:zfs:0 s10u8-baseline:/panroot:panroot:zfs:0 s10u8-baseline:/workshop:pandora/workshop:zfs:0 s10u8-baseline:/export/iso:pandora/iso:zfs:0 s10u8-baseline:/export/home:pandora/home:zfs:0 s10u8-baseline:/vbox/HardDisks:pandora/vbox/HardDisks:zfs:0 s10u8-baseline:/vbox/HardDisks/WinXP:pandora/vbox/HardDisks/WinXP:zfs:0 Solaris 10 9/10 introduces new autoregistration file This one is actually mentioned in the Oracle Solaris 9/10 release notes. I know, I hate it when that happens too. Here's what the "error" looks like. # luupgrade -u -s /mnt -n s10u9-baseline System has findroot enabled GRUB No entry for BE in GRUB menu Copying failsafe kernel from media. 61364 blocks miniroot filesystem is Mounting miniroot at ERROR: The auto registration file does not exist or incomplete. The auto registration file is mandatory for this upgrade. Use -k argument along with luupgrade command. autoreg_file is path to auto registration information file. See sysidcfg(4) for a list of valid keywords for use in this file. The format of the file is as follows. oracle_user=xxxx oracle_pw=xxxx http_proxy_host=xxxx http_proxy_port=xxxx http_proxy_user=xxxx http_proxy_pw=xxxx For more details refer "Oracle Solaris 10 9/10 Installation Guide: Planning for Installation and Upgrade". As with the previous problem, this is also easy to work around. Assuming that you don't want to use the auto-registration feature at upgrade time, create a file that contains just autoreg=disable and pass the filename on to luupgrade. Here is an example. # echo "autoreg=disable" /var/tmp/no-autoreg # luupgrade -u -s /mnt -k /var/tmp/no-autoreg -n s10u9-baseline System has findroot enabled GRUB No entry for BE in GRUB menu Copying failsafe kernel from media. 61364 blocks miniroot filesystem is Mounting miniroot at ####################################################################### NOTE: To improve products and services, Oracle Solaris communicates configuration data to Oracle after rebooting. You can register your version of Oracle Solaris to capture this data for your use, or the data is sent anonymously. For information about what configuration data is communicated and how to control this facility, see the Release Notes or www.oracle.com/goto/solarisautoreg. INFORMATION: After activated and booted into new BE , Auto Registration happens automatically with the following Information autoreg=disable ####################################################################### Validating the contents of the media . The media is a standard Solaris media. The media contains an operating system upgrade image. The media contains version . Constructing upgrade profile to use. Locating the operating system upgrade program. Checking for existence of previously scheduled Live Upgrade requests. Creating upgrade profile for BE . Checking for GRUB menu on ABE . Saving GRUB menu on ABE . Checking for x86 boot partition on ABE. Determining packages to install or upgrade for BE . Performing the operating system upgrade of the BE . CAUTION: Interrupting this process may leave the boot environment unstable or unbootable. The Live Upgrade operation now proceeds as expected. Once the system upgrade is complete, we can manually register the system. If you want to do a hands off registration during the upgrade, see the Oracle Solaris Auto Registration section of the Oracle Solaris Release Notes for instructions on how to do that. Technocrati Tags: Oracle Solaris Patching Live Upgrade var sc_project=1193495; var sc_invisible=1; var sc_security="a46f6831";

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• How would you rewrite/refactor this ?

  - by frostings

  Old application that is used by 50-60.000 paying customers. Company is several hundred people big. Application has a lot of business critical code (30% of all code) written in classic asp. Application has a lot more .net code. Application has a COM+ bridge for enabling asp to "talk" to .net Organization lacks some/a lot knowledge on what is causing the 10-20% server-reset per day (might be due to COM+ ?) There is no red line through the application; no architecture, no real patterns etc. The application has been like this for at least 5 years. The asp code base is increasing, slowly but certainly. I have read refactoring stories and I have knowledge on why you some of the times should not re-write a system. I would love for the old asp code to vanish as well as the COM+ component. But the pain is that no one really knows what is going on inside the asp classic code and the attitude inside all the teams are "this is just how it is". Down the line, this causes a lot of other issues like recruiting, dev effeciency, business needs that cannot be met, scale etc. With these little facts, does that justify a re-write of the asp code and the removal of the COM+ component ? How would you go about it ?

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• SQLAuthority News – A Successful Performance Tuning Seminar at Pune – Dec 4-5, 2010

  - by pinaldave

  This is report to my third of very successful seminar event on SQL Server Performance Tuning. SQL Server Performance Tuning Seminar in Colombo was oversubscribed with total of 35 attendees. You can read the details over here SQLAuthority News – SQL Server Performance Optimizations Seminar – Grand Success – Colombo, Sri Lanka – Oct 4 – 5, 2010. SQL Server Performance Tuning Seminar in Hyderabad was oversubscribed with total of 25 attendees. You can read the details over here SQL SERVER – A Successful Performance Tuning Seminar – Hyderabad – Nov 27-28, 2010. The same Seminar was offered in Pune on December 4,-5, 2010. We had another successful seminar with lots of performance talk. This seminar was attended by 30 attendees. The best part of the seminar was that along with the our agenda, we have talked about following very interesting concepts. Deadlocks Detection and Removal Dynamic SQL and Inline Code SQL Optimizations Multiple OR conditions and performance tuning Dynamic Search Condition Building and Improvement Memory Cache and Improvement Bottleneck Detections – Memory, CPU and IO Beginning Performance Tuning on Production Parametrization Improving already Super Fast Queries Convenience vs. Performance Proper way to create Indexes Hints and Disadvantages I had great time doing the seminar and sharing my performance tricks with all. The highlight of this seminar was I have explained the attendees, how I begin doing performance tuning when I go for Performance Tuning Consultations.   Pinal Dave at SQL Performance Tuning Seminar SQL Server Performance Tuning Seminar Pinal Dave at SQL Performance Tuning Seminar Pinal Dave at SQL Performance Tuning Seminar SQL Server Performance Tuning Seminar SQL Server Performance Tuning Seminar This seminar series are 100% demo oriented and no usual PowerPoint talk. They are created from my experiences of various organizations for performance tuning. I am not planning any more seminar this year as it was great but I am booked currently for next 60 days at various performance tuning engagements. Reference: Pinal Dave (http://blog.sqlauthority.com) Filed under: Pinal Dave, SQL, SQL Authority, SQL Optimization, SQL Performance, SQL Query, SQL Server, SQL Tips and Tricks, SQL Training, SQLAuthority News, T SQL, Technology

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• How to get ip-address out of SPAMHAUS blacklist?

  - by vgv8

  I frequently read that it is possible to remove individual ip-addresses from SPAMHAUS blacklisting. OK. Here is 91.205.43.252 (91.205.43.251 - 91.205.43.253) used by back3.stopspamers.com (back2.stopspamers.com, back1.stopspamers.com) in geo-cluster on dedicated servers in Switzerland. The queries: http://www.spamhaus.org/query/bl?ip=91.205.43.251 http://www.spamhaus.org/query/bl?ip=91.205.43.252 http://www.spamhaus.org/query/bl?ip=91.205.43.253 tell that: 91.205.43.251 - 91.205.43.253 are all listed in the SBL80808 blacklist And SBL80808 blacklist tells: "Ref: SBL80808 91.205.40.0/22 is listed on the Spamhaus Block List (SBL) 01-Apr-2010 05:52 GMT | SR04 Spamming and now seems this place is involved in other fraud" 91.205.43.251-91.205.43.253 are not listed amongst criminal ip-addresses individually but there is no way to remove it individually from black listing. How to remove this individual (91.205.43.251-91.205.43.253) addresses from SPAMHAUS blacklist? And why the heck SPAMHAUS is blacklisting spam-stopping service? This is only one example of a bunch. My related posts: Blacklist IP database Update: From the answer provided I realized that my question was not even understood. This ip-addresses 91.205.43.251 - 91.205.43.253 are not blacklisted individually, they are blacklisted through its supernet 91.205.40.0/22. Also note that dedicated server, ISP and customer are in much different distant countries. Update2: http://www.spamhaus.org/sbl/sbl.lasso?query=SBL80808#removal tells: "To have record SBL80808 (91.205.40.0/22) removed from the SBL, the Abuse/Security representative of RIPE (or the Internet Service Provider responsible for supplying connectivity to 91.205.40.0/22) needs to contact the SBL Team" There are dozens of "abusers" in that blacklist SBL80808. The company using that dedicated server is not an ISP or RIPE representative to treat these issues. Even if to treat it, it is just a matter of pressing "Report spam" on internet to be again blacklisted, this is fruitless approach. These techniques are broadly used by criminals and spammers, See also this my post on blacklisting. This is just one specific example but there are many-many more.

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• Distinctly LINQ &ndash; Getting a Distinct List of Objects

  - by David Totzke

  Let’s say that you have a list of objects that contains duplicate items and you want to extract a subset of distinct items.  This is pretty straight forward in the trivial case where the duplicate objects are considered the same such as in the following example: List<int> ages = new List<int> { 21, 46, 46, 55, 17, 21, 55, 55 }; IEnumerable<int> distinctAges = ages.Distinct(); Console.WriteLine("Distinct ages:"); foreach (int age in distinctAges) { Console.WriteLine(age); } /* This code produces the following output: Distinct ages: 21 46 55 17 */ What if you are working with reference types instead?  Imagine a list of search results where items in the results, while unique in and of themselves, also point to a parent.  We’d like to be able to select a bunch of items in the list but then see only a distinct list of parents.  Distinct isn’t going to help us much on its own as all of the items are distinct already.  Perhaps we can create a class with just the information we are interested in like the Id and Name of the parents.  public class SelectedItem { public int ItemID { get; set; } public string DisplayName { get; set; } } We can then use LINQ to populate a list containing objects with just the information we are interested in and then get rid of the duplicates. IEnumerable<SelectedItem> list = (from item in ResultView.SelectedRows.OfType<Contract.ReceiptSelectResults>() select new SelectedItem { ItemID = item.ParentId, DisplayName = item.ParentName }) .Distinct(); Most of you will have guessed that this didn’t work.  Even though some of our objects are now duplicates, because we are working with reference types, it doesn’t matter that their properties are the same, they’re still considered unique.  What we need is a way to define equality for the Distinct() extension method. IEqualityComparer<T> Looking at the Distinct method we see that there is an overload that accepts an IEqualityComparer<T>.  We can simply create a class that implements this interface and that allows us to define equality for our SelectedItem class. public class SelectedItemComparer : IEqualityComparer<SelectedItem> { public new bool Equals(SelectedItem abc, SelectedItem def) { return abc.ItemID == def.ItemID && abc.DisplayName == def.DisplayName; } public int GetHashCode(SelectedItem obj) { string code = obj.DisplayName + obj.ItemID.ToString(); return code.GetHashCode(); } } In the Equals method we simply do whatever comparisons are necessary to determine equality and then return true or false.  Take note of the implementation of the GetHashCode method.  GetHashCode must return the same value for two different objects if our Equals method says they are equal.  Get this wrong and your comparer won’t work .  Even though the Equals method returns true, mismatched hash codes will cause the comparison to fail.  For our example, we simply build a string from the properties of the object and then call GetHashCode() on that. Now all we have to do is pass an instance of our IEqualitlyComarer<T> to Distinct and all will be well: IEnumerable<SelectedItem> list =     (from item in ResultView.SelectedRows.OfType<Contract.ReceiptSelectResults>()         select new SelectedItem { ItemID = item.dahfkp, DisplayName = item.document_code })                         .Distinct(new SelectedItemComparer());   Enjoy. Dave Just because I can… Technorati Tags: LINQ,C#

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• The 50 Best Ways to Disable Built-in Windows Features You Don’t Want

  - by The Geek

  Over the years, we’ve written about loads of ways to disable features, tweak things that don’t work the way you want, and remove other things entirely. Here’s the list of the 50 best ways to do just that. Just in case you missed some of our recent roundup articles, here’s a couple of roundups of our very best articles for you to check out: The 50 Best Registry Hacks that Make Windows Better The 20 Best How-To Geek Explainer Topics for 2010 The 20 Best Windows Tweaks that Still Work in Windows 7 The 50 Best How-To Geek Windows Articles of 2010 The 10 Cleverest Ways to Use Linux to Fix Your Windows PC If you’ve already been through those, keep reading for how to disable loads of Windows features you might not want Latest Features How-To Geek ETC How to Upgrade Windows 7 Easily (And Understand Whether You Should) The How-To Geek Guide to Audio Editing: Basic Noise Removal Install a Wii Game Loader for Easy Backups and Fast Load Times The Best of CES (Consumer Electronics Show) in 2011 The Worst of CES (Consumer Electronics Show) in 2011 HTG Projects: How to Create Your Own Custom Papercraft Toy Calvin and Hobbes Mix It Up in this Fight Club Parody [Video] Choose from 124 Awesome HTML5 Games to Play at Mozilla Labs Game On Gallery Google Translate for Android Updates to Include Conversation Mode and More Move Your Photoshop Scratch Disk for Improved Performance Winter Storm Clouds on the Horizon Wallpaper Existential Angry Birds [Video]

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• Auto-cancel reason not found (6, 13906)

  - by Rajesh Sharma

  There are many errors in the application which are never invoked because of appropriate application configuration done at the time of implementation by the solution architects. So typically, as an application end user you would never stumble upon such errors. But what if the application administrator inadvertently changes the configuration/setup in the development, test, QA, or production environment? This is the time when you as an end user are introduced to a brand-new error for which you may not have a clue or understanding to what it means and neither the access/privilege to rectify it.    In this post we'll focus on one such error '6, 13906 - Auto-cancel reason not found'.   You get this error if you have not defined a Bill (Segment) Cancel Reason (Admin Menu, B, Bill Cancel Reason) code with System Default value of Turn off auto-cancel.   Consider a scenario when you are about to final bill an 'Account' for which the bill period's cut-off date you selected is falling on or after the Service Agreement's (SA) end/stop date (basically SA is Stopped with a date earlier than it was billed previously). And for the same 'Account' either: Bill segments exists that end after the SA's end date OR Non-closing bill segments exists that end on the SA's end date (OR closing bill segments that do not end on SA's end date or do not exist at all - remember closing/final bill segment is generated if the SA is in Stopped status).   CC&B detects such scenario and attempts to cancel all such violating bill segments automatically, but NOT if you are generating the bill Online. If online, the system assumes that you know what you are doing, and prompts you with error 2, 13716 - Bill segments that violate the SA (%1) End Date (%2) exist to take necessary action.   If in batch, system automatically cancels these kinds of bill segment(s).   Since this happens in the background, you have to define within the application which System Default Bill (Segment) cancellation reason code identified as Turn off auto-cancel, should be used by the process when it attempts to cancel any such violating bill segments (You already know that you cannot cancel a bill segment without giving a reason for cancellation).   So what exactly happens during batch billing?   Bill Segment generation routine at first determines billing eligibility of the service agreement being billed. One of the billing eligibility criteria is to check the SA's previous bill segments which have end dates greater than the current cut-off date/end date. Technically, the routine retrieves a count of such violating bill segments.     SELECT COUNT (*) FROM CI_BSEG WHERE SA_ID = :SA-ID AND BSEG_STAT_FLG = '50' -- Frozen AND END_DT IS NOT NULL AND (END_DT > '03-JUN-2010' -- Bill segment greater than SA's End Date OR OR (END_DT = '03-JUN-2010' AND CLOSING_BSEG_SW = 'N')) -- Non-closing bill segment ending on SA's end date   If the count is greater than zero, Bill segment generation routine executes another program to auto-cancel such bill segments. Auto-cancel program retrieves the 'Bill Cancel Reason' code which is identified as Turn off auto-cancel. Retrieved cancel reason code is then placed on the bill segments that are being cancelled automatically.   During this process if the routine fails to determine the bill cancel reason code having System Default Turn off auto-cancel because it was not been configured, you get a bill exception 6, 13906 - Auto-cancel reason not found.   Also note that duplicate or multiple System Default codes identified as Turn off auto-cancel are not allowed. CC&B would complain with an error 2, 54201.   Duplicate validation/check is also performed within Auto-cancel routine, if suppose for test purposes you executed a DML statement updating CI_BILL_CAN_RSN.BSCAN_SYS_DFLT_FLG with a value 'T'.

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• Resetting "HDD Warning???" with Zalman ZM-VE400 external case

  - by 0xC0000022L

  Whenever I turn on (or plug in) the Zalman ZM-VE400 I have, it shows HDD Warning???. Sometimes briefly, sometimes until the Menu button is pressed. The case contains a SSD drive and as far as I understand the warning relates to the S.M.A.R.T. status of which this drive doesn't support all parts. How can I reset the warning so I don't receive it every time when turning on the drive? Firmware reports: V400_01_040_N Here's what I have tried so far: Unplug and plug back in Open the case and remove the SSD, then put it back in Press the button on the back side (cover removed) while plugged in Press the button on the back side (cover removed) while not plugged in USB Connect = Refresh = Enter USB Connect = Safe Removal = Enter Advanced = Umount VHDD = Enter

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• Add Properties Back to the Context Menu in Firefox

  - by Asian Angel

  Have you noticed that the Properties Command has been removed from the Context Menu in Firefox 3.6? If you have been missing it here is how to get it back. Before With the newest version of Firefox you may have noticed a very useful command missing from the “Context Menu”. Here you can see that when we right clicked on the article link we were unable to “access” the properties for it… Same article and the same problem when trying to “access” the properties for one of the images. After Once you have installed the extension you can once again “access” the properties for those links… And those images… Looking very good… Conclusion If you have been frustrated with the removal of the “Properties Command” from the “Context Menu” in Firefox 3.6, you can now add it back in just a few moments. Links Download the Element Properties extension (Mozilla Add-ons) Similar Articles Productive Geek Tips Prevent Annoying Websites From Messing With the Right-Click Menu in FirefoxAccess Your Bookmarks in the Context Menu with Context BookmarksAdd Print & Print Preview Commands to Firefox’s Context MenuRestore the "Search…" Item to the Folder Context Menu in Windows Vista SP1Create Permanent Tabs in Firefox with PermaTabs Mod TouchFreeze Alternative in AutoHotkey The Icy Undertow Desktop Windows Home Server – Backup to LAN The Clear & Clean Desktop Use This Bookmarklet to Easily Get Albums Use AutoHotkey to Assign a Hotkey to a Specific Window Latest Software Reviews Tinyhacker Random Tips Revo Uninstaller Pro Registry Mechanic 9 for Windows PC Tools Internet Security Suite 2010 PCmover Professional The Ultimate Excel Cheatsheet Convert the Quick Launch Bar into a Super Application Launcher Automate Tasks in Linux with Crontab Discover New Bundled Feeds in Google Reader Play Music in Chrome by Simply Dragging a File 15 Great Illustrations by Chow Hon Lam

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• How do I totally get rid of Norton Utilities

  - by Patriot

  Alright, so I treated myself to a new computer for Christmas. Windows7 64-bit, yada yada yada. Uninstalled Norton Security using Windows7 uninstall program, installed Microsoft Security Essentials in it's place. From a cold boot, I still get the screen from Norton asking me if I wanna sign up for the free six months, which I don't. Guess Windows7 uninstall left behind some pieces. Anyone know how I can get rid of this Norton screen? EDIT: @ Revolter: Great. Used Norton Removal Tool Successfully. Now I get a different pop-up window ALWAYS reminding me if I want to activate Norton Online Backup. What does one have to do to FINALLY get rid of these people?

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• dpkg E: Sub-process /usr/bin/dpkg returned an error

  - by user81269

  I decided to shift around my partitions on my hard drive for a fresh install of Kubuntu. I booted my Ubuntu 10.10 live disc, shifted everything around and attempted to install grub and it didn't work, so I burnt an Ubuntu 12.04 disc and installed it. I got the computer working and wanted to install some packages, but didn't have an internet connection at the time. So (I know this was stupid) I got some debs from previous versions of Ubuntu, as I needed my music, and the other install took a long of time to boot. Once I got my internet connection back, everything worked ok, for a little while. Then I stumbled upon this problem after removing ten broken packages using synaptic: drhax@Spamotard:~$ sudo apt-get install -f Reading package lists... Done Building dependency tree Reading state information... Done The following packages will be REMOVED: libgtk2.0-cil 0 upgraded, 0 newly installed, 1 to remove and 417 not upgraded. 1 not fully installed or removed. After this operation, 2,638 kB disk space will be freed. Do you want to continue [Y/n]? y (Reading database ... 103052 files and directories currently installed.) Removing libgtk2.0-cil ... E: File does not exist: /usr/share/cli-common/packages.d/policy.2.6.gtk-dotnet.installcligac dpkg: error processing libgtk2.0-cil (--remove): subprocess installed post-removal script returned error exit status 1 Errors were encountered while processing: libgtk2.0-cil E: Sub-process /usr/bin/dpkg returned an error code (1) Help would be appreciated. This is my first post, but I do know fair bit about Ubuntu, so feel free to point out any stupid mistakes I have made.

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• MySQL 5.5 on Windows server is horribly slow

  - by Brad

  I have had no luck getting MySQL 5.5 to be as fast as 5.1 or MariaDB on the exact same hardware/database/environment under Windows server 2003R2 or 2008R2. My benchmarks from our application: MySQL 5.5 + CentOS 5.2 (XenServer Virtual) = 28 seconds (box is "busy" not buried) MariaDB (5.1) + Windows 2003 (Physical box) = 130 seconds (box is 2% busy) MySQL 5.1 + Windows 2003 (Physical box) = 170 seconds (box is 2% busy) MySQL 5.5 + Windows 2003 (Physical box) = 305 seconds (As high as 600 seconds...) (box is 2% busy) The only difference between these runs is the removal of skip-locking and the running of mysql_upgrade.exe to update some tables for stored procs on 5.5. Yes, I know it's a release candidate, I'm feeding that back to MySQL as well. No slow queries are logged, it doesn't think it's being slow, it just is. I'm going to start tearing into the queries themselves to see if the INSERT/SELECT plans have gone buggo on 5.5. Any help would be appreciated! Thanks

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• Java - System design with distributed Queues and Locks

  - by sunny

  Looking for inputs to evaluate a design for a system (java) which would have a distributed queue serving several (but not too many) nodes. These nodes would process objects present in the distributed queue and on occasion require a distributed lock across the cluster on an arbitrary (distributed) data structures. These (distributed) data structures could potentially lie in a distributed cache. Eliminating Terracotta (DSO),Hazelcast and Akka what could be alternative choices. Currently considering zookeeper as a distributed locking mechanism. Since the recommendation of a znode is not to exceed the 1M size , the understanding is that zookeeper should not be used a distributed queue. And also from Netflix curator tech note 4. So should a distributed cache, say like memcached, or redis be used to emulate a distributed queue ? i.e. The distributed queue will be stored in the caches and will be locked cluster-wide via zookeeper. Are there potential pitfalls with this high-level approach. The objects don't need to be taken off the queue. The object will pass through a lifecycle which will determine its removal from the queue. There would be about 10k+ objects in a queue at a given time changing states and any node could service one stage of the object's lifecycle. (Although not strictly necessary .. i.e. one node could serve the entire lifecycle if that is more efficient.) Any suggestions/alternatives ? sidenote: new to zookeeper ; redis etc.

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• How to get ip-address out of SPAMHAUS blacklist?

  - by ???????? ????? ???????????

  I frequently read that it is possible to remove individual ip-addresses from SPAMHAUS blacklisting. OK. Here is 91.205.43.252 (91.205.43.251 - 91.205.43.253) used by back3.stopspamers.com (back2.stopspamers.com, back1.stopspamers.com) in geo-cluster on dedicated servers in Switzerland. The queries: http://www.spamhaus.org/query/bl?ip=91.205.43.251 http://www.spamhaus.org/query/bl?ip=91.205.43.252 http://www.spamhaus.org/query/bl?ip=91.205.43.253 tell that: 91.205.43.251 - 91.205.43.253 are all listed in the SBL80808 blacklist And SBL80808 blacklist tells: "Ref: SBL80808 91.205.40.0/22 is listed on the Spamhaus Block List (SBL) 01-Apr-2010 05:52 GMT | SR04 Spamming and now seems this place is involved in other fraud" 91.205.43.251-91.205.43.253 are not listed amongst criminal ip-addresses individually but there is no way to remove it individually from black listing. How to remove this individual (91.205.43.251-91.205.43.253) addresses from SPAMHAUS blacklist? And why the heck SPAMHAUS is blacklisting spam-stopping service? This is only one example of a bunch. My related posts: Blacklist IP database Update: From the answer provided I realized that my question was not even understood. This ip-addresses 91.205.43.251 - 91.205.43.253 are not blacklisted individually, they are blacklisted through its supernet 91.205.40.0/22. Also note that dedicated server, ISP and customer are in much different distant countries. Update2: http://www.spamhaus.org/sbl/sbl.lasso?query=SBL80808#removal tells: "To have record SBL80808 (91.205.40.0/22) removed from the SBL, the Abuse/Security representative of RIPE (or the Internet Service Provider responsible for supplying connectivity to 91.205.40.0/22) needs to contact the SBL Team" There are dozens of "abusers" in that blacklist SBL80808. The company using that dedicated server is not an ISP or RIPE representative to treat these issues. Even if to treat it, it is just a matter of pressing "Report spam" on internet to be again blacklisted, this is fruitless approach. These techniques are broadly used by criminals and spammers, See also this my post on blacklisting. This is just one specific example but there are many-many more.

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• http, https and ftp is not working but smtp and imap is working

  - by Unicron

  hi all, yesterday on a computer of a friend a strange thing happened. after booting the ports fo http, https and ftp are closed but e-mail is still working. in the control panel the windows firewall seems active even if he tries to deactivate it. i have a suspision that it is the faul of norton internet security 2010, we have tried to uninstall it, but the uninstallation did not work. when using the removal tool from symantec it just goes to 23% and then it crashes. the process ccSvcHst.exe is still running. how can i safeley remove the rest of norton internet security? thanks in advance [edit] norton internet security 2010 is sucesfully removed, but still no connectivity

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• Set certain WSUS updates to auto-install

  - by Nicolas

  We're running a WSUS server for the simple purpose of caching updates. Since we are a very small network of all "power users", we've got the domain group policy for WSUS updates on the clients set to prompt for download/install. i.e. We don't want updates to install without our knowledge. But there are a few cases where it would be nice to be able to set a certain update to auto-install. e.g. Windows Defender updates, Malicious Software Removal Tool, Outlook Junk Email Filter, etc. Basically all the silly little updates that you would always install anyway and don't require a restart. Is there a way to set the general policy to prompt for download/install, but auto-install certain regular updates? P.S. WSUS itself does have the facility to auto-approve certain updates. That part works. Facts & Figures: SBS 2003 domain Windows 7 Pro clients Windows XP Pro clients

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• How do I refresh Disk Utility?

  - by detly

  I do a lot of live system building, which eventually involves imaging a USB drive with the built binary image: dd if=binary.img of=/dev/sdX sync ...where /dev/sdX is a USB drive. As part of my workflow, I like to have Ubuntu's Disk Utility open so I can verify the drive letter and unmount anything that gets mounted automatically. I also use it to create extra partitions for persistence. The trouble is, after writing the image to the device — and even after the sync operation — Disk Utility doesn't show the new partition. It just shows free space. GParted sees it and fdisk sees it. Even after closing and opening Disk Utility, it still shows only free space. If I click "Safe Removal" and physically unplug and replug the USB drive, Disk Utility will then see the partition. Why do I need to remove and re-insert the drive for Disk Utility to see the partitions on it? Can I force Disk Utility to update its information without needing to do this? (using Disk Utility 3.0.2 under Ubuntu 11.10.)

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• Can defect containment metrics be readily applied at an organizational level when there is only a consistant organizational process framework?

  - by Thomas Owens

  Defect containment metrics, such as total defect containment effectiveness (TDCE) and phase containment effectiveness (PCE), can be used to give a good indicator of the quality of the process. TDCE captures the defects that are captured at some point between requirements and the release of a product into the field, indicating the overall effectiveness of the entire process to find and remove defects. PCE provides more detail at each phase of the software development life cycle and how the defect detection and removal techniques are working. Applying these metrics makes sense at a level where you have a well-defined process and methodology for product development, often a project. However, some organizations provide a process framework that is tailored at the project level. This process framework would include the necessary guidance for meeting certifications (ISO9001, CMMI), practices for incorporating known good techniques (agile methods, Lean, Six Sigma), and requirements for legal or regulatory reasons. However, the specific details of how to gather requirements, design the system, produce the software, conduct test, and release are left to the product development teams. Is there any effective way to apply defect containment metrics at an organizational level when only a process framework exists at the organizational level? If not, what might be some ideas for metrics that can be distilled from each project (each using a tailored process that fits into the organizational process framework) that captures defect containment metrics to discuss the ability of the process to find and remove defects? The end goal of such a metric would be to consolidate the defect containment practices of a large number of ongoing projects and report to management. The target audience would be people in roles such as the chief software engineer and the chief engineer (of all engineering disciplines) for the organization. Although project specific data would be available, the idea is to produce something that quantifies the general effectiveness of all tailored processes across all ongoing projects. I would suspect that this data would also be presented as part of CMMI, ISO, or similar audits to demonstrate process quality.

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• How to work around a possible XNA Game Studio or Windows Phone SDK install failure on Windows 8

  - by Laurent Bugnion

  I am not sure if you guys know Aaron Stebner. Aaron works at Microsoft, and has pulled thorns from my side many many times already. His blog is at http://blogs.msdn.com/b/astebner and it is a gold mine of tips and tricks to debug and solve many cryptic issues happening during installation and removal of programs. For example, Aaron taught me how to remove programs that do not appear in the Programs and Features list, amongst many other things. The last nugget I used from Aaron’s blog saved my butt just before a presentation where I had to run both Visual Studio 10 with the Windows Phone SDK, and Visual Studio 11 for WinRT development. Of course this had to be on Windows 8. Unfortunately when you install the Windows Phone SDK on Windows 8, you may (or may not, I saw both scenarios) encounter an issue with XNA, and the installation fails. Unfortunately, even if you don’t use XNA in your apps, this will prevent even normal Windows Phone app development. Fortunately, Aaron has a fix for that. I hope that this helps spread the word, and increase Aaron’s blog’s visibility! Happy coding, Laurent   Laurent Bugnion (GalaSoft) Subscribe | Twitter | Facebook | Flickr | LinkedIn

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• CodePlex Daily Summary for Tuesday, October 22, 2013

  CodePlex Daily Summary for Tuesday, October 22, 2013Popular ReleasesLINQ to Twitter: LINQ to Twitter v2.1.10: Supports .NET 3.5, .NET 4.0, .NET 4.5, Silverlight 4.0, Windows Phone 7.1, Windows Phone 8, Client Profile, Windows 8, and Windows Azure. 100% Twitter API coverage. Also supports Twitter API v1.1! Also on NuGet.Grauers Hide Ribbon Items: Grauers Hide Ribbon Items: Hiding ribbon items in a SharePoint libraryMedia Companion: Media Companion MC3.584b: IMDB changes fixed. Fixed* mc_com.exe - Fixed to using new profile entries. * Movie - fixed rename movie and folder if use foldername selected. * Movie - Alt Edit Movie, trailer url check if changed and confirm valid. * Movie - Fixed IMDB poster scraping * Movie - Fixed outline and Plot scraping, including removal of Hyperlink's. * Movie Poster refactoring, attempts to catch gdi+ errors Revision HistoryJayData -The unified data access library for JavaScript: JayData 1.3.4: JayData is a unified data access library for JavaScript to CRUD + Query data from different sources like WebAPI, OData, MongoDB, WebSQL, SQLite, HTML5 localStorage, Facebook or YQL. The library can be integrated with KendoUI, Angular.js, Knockout.js or Sencha Touch 2 and can be used on Node.js as well. See it in action in this 6 minutes video KendoUI examples: JayData example site Examples for map integration JayData example site What's new in JayData 1.3.4 For detailed release notes check ...TerrariViewer: TerrariViewer v7.2 [Terraria Inventory Editor]: Added "Check for Update" button Hopefully fixed Windows XP issue You can now backspace in Item stack fieldsIsWiX: IsWiX 2.2.13293.1: This a minor enhancement of the 2.1 release. IsWiX Merge Module projects now include a second wxs fragment file that is useful for inserting `custom` components not supposed by the IsWiX UI.Simple Injector: Simple Injector v2.3.6: This patch releases fixes one bug concerning resolving open generic types that contain nested generic type arguments. Nested generic types were handled incorrectly in certain cases. This affects RegisterOpenGeneric and RegisterDecorator. (work item 20332)Virtual Wifi Hotspot for Windows 7 & 8: Virtual Router Plus 2.6.0: Virtual Router Plus 2.6.0Fast YouTube Downloader: Fast YouTube Downloader 2.3.0: Fast YouTube DownloaderMagick.NET: Magick.NET 6.8.7.101: Magick.NET linked with ImageMagick 6.8.7.1. Breaking changes: - Renamed Matrix classes: MatrixColor = ColorMatrix and MatrixConvolve = ConvolveMatrix. - Renamed Depth method with Channels parameter to BitDepth and changed the other method into a property.VidCoder: 1.5.9 Beta: Added Rip DVD and Rip Blu-ray AutoPlay actions for Windows: now you can have VidCoder start up and scan a disc when you insert it. Go to Start -> AutoPlay to set it up. Added error message for Windows XP users rather than letting it crash. Removed "quality" preset from list for QSV as it currently doesn't offer much improvement. Changed installer to ignore version number when copying files over. Should reduce the chances of a bug from me forgetting to increment a version number. Fixed ...MSBuild Extension Pack: October 2013: Release Blog Post The MSBuild Extension Pack October 2013 release provides a collection of over 480 MSBuild tasks. A high level summary of what the tasks currently cover includes the following: System Items: Active Directory, Certificates, COM+, Console, Date and Time, Drives, Environment Variables, Event Logs, Files and Folders, FTP, GAC, Network, Performance Counters, Registry, Services, Sound Code: Assemblies, AsyncExec, CAB Files, Code Signing, DynamicExecute, File Detokenisation, GUI...VG-Ripper & PG-Ripper: VG-Ripper 2.9.49: changes NEW: Added Support for "ImageTeam.org links NEW: Added Support for "ImgNext.com" links NEW: Added Support for "HostUrImage.com" links NEW: Added Support for "3XVintage.com" linksMoreTerra (Terraria World Viewer): MoreTerra 1.11.3.1: Release 1.11.3.1 ================ = New Features = ================ Added markers for Copper Cache, Silver Cache and the Enchanted Sword. ============= = Bug Fixes = ============= Use Official Colors now no longer tries to change the Draw Wires option instead. World reading was breaking for people with a stock 1.2 Terraria version. Changed world name reading so it does not crash the program if you load MoreTerra while Terraria is saving the world. =================== = Feature Removal = =...patterns & practices - Windows Azure Guidance: Cloud Design Patterns: 1st drop of Cloud Design Patterns project. It contains 14 patterns with 6 related guidance.Player Framework by Microsoft: Player Framework for Windows and WP (v1.3): Includes all changes in v1.3 beta 1 and v1.3 beta 2 Support for Windows 8.1 RTM and VS2013 RTM Xaml: New property: AutoLoadPluginTypes to help control which stock plugins are loaded by default (requires AutoLoadPlugins = true). Support for SystemMediaTransportControls on Windows 8.1 JS: Support for visual markers in the timeline. JS: Support for markers collection and markerreached event. JS: New ChaptersPlugin to automatically populate timeline with chapter tracks. JS: Audio an...Json.NET: Json.NET 5.0 Release 8: Fix - Fixed not writing string quotes when QuoteName is falsePowerShell Community Extensions: 3.1 Production: PowerShell Community Extensions 3.1 Release NotesOct 17, 2013 This version of PSCX supports Windows PowerShell 3.0 and 4.0 See the ReleaseNotes.txt download above for more information.Social Network Importer for NodeXL: SocialNetImporter(v.1.9): This new version includes: - Download latest status update and use it as vertex tooltip - Limit the timelines to parse to me, my friends or both - Fixed some reported bugs about the fan page and group importer - Fixed the login bug reported latelyPython Tools for Visual Studio: 2.0: PTVS 2.0 We’re pleased to announce the release of Python Tools for Visual Studio 2.0 RTM. Python Tools for Visual Studio (PTVS) is an open-source plug-in for Visual Studio which supports programming with the Python language. PTVS supports a broad range of features including CPython/IronPython, Edit/Intellisense/Debug/Profile, Cloud, IPython, and cross platform and cross language debugging support. QUICK VIDEO OVERVIEW For a quick overview of the general IDE experience, please watch this v...New Projects40FINGERS NB_Store Menumanipulator: This component allows you to add the categories of your NB_Store webshop to your DotNetNuke website's menu.ABCat: ??????? ?????????? ???????????? ????????, ?????????????? ??????? ??? ????????? ????????? ?????????? ? ?????????? ????? ?????????.AUTOFIX: This is a project related to Web Application development for University of HertfordshireAutomated service accounts creation for SharePoint 2010 and 2013 and SQL Server: Purpose of this project is just to automate the creation of SharePoint Service accounts in Active Directory.BeatportPro: Windows version of Beatport ProCasaNet: CasaNetFree Cascaded Dropdown lists JQuery Plugin for SharePoint Forms: SPCascade lets you create multi-level cascaded dropdown lists on a SharePoint form using easy JQuery code.GODspeed - FTP client for JTAG/RGH Xbox 360 consoles: Total Commander like FTP client designed to fasten and clarify file management of JTAG/RGH/DevKit Xbox 360 consoles.HCI Web Search: This project seaches for using alternative ways to handle and to visualize Web search results in a 3D environment, by interacting with gestures and speech reco.HengbeiVillage: ASP.Net + EF + AjaxToolkit ControlsIntegração Cielo Nopcommerce: Realizar a integração nopcommerce com a Cielo. Maiores detalhes são bem vindo.juzgadosdelaciudad: Mapa con Juzgados de la ciudad de buenos airesLeapJanken: LeapMotion?????、Windows Store Apps??????????????????。Looking tester for Template Engine: -VALIDATE TEMPLATE SYNTAX - no template parsing overhead, only compiles once. - unlimited nesting of sections, conditionals, etc.MQTT Broker for .NET: Project to develop a broker (server) for the MQTT protocol, an M2M Internet-of-Things communication protocol.NC MKT DNT: NC MKTNet Imobiliaria: Projeto Integrador IV SenacNewBiz: NewBiz Java Web ApplicationOAuthServer: OAuthServer is an Open Authentication server that allows you to securely authenticate your Active Directory users directly on the internet.QlikBar SDK for .NET 2.0: QlikBar SDK for .NET 2.0RainNoise - The Sound of Rain, without the wet feet.: Making some rain noise for Android device.Redsys / Sermepa gateway for Asp.Net MVC4: Coming soon....Restore Exchange 2003 Data to Exchange 2010: SysTools Exchange Recovery tool which proffers efficient and beneficial features in order to restore or migrate Exchange mailboxes from one server to anotherTimely: A library to fluently work with DateTime and TimeSpan objectstutorials_online: This is a project that is associated with my progress in tutorials in Web Scripting and Application Development in for the University of HertfordshireUQBuy ?????: ??????，?????，????，??????Voxel To Mesh Converter: Converts voxel models into mesh models.

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• ubuntu software center not working after update

  - by HOS

  today I'm updated my Ubuntu (I have KDE Desktop installed on it before) & After update , my Ubuntu software center said : items cannot be installed or removed until the package catalog is repaired .do you want to repair it ? and when I'm clicked on Repair ,after 2 seconds it says : the installation or removal of software package Failed , with this details : installArchives() failed: dpkg: dependency problems prevent configuration of kdm: kdm depends on libkworkspace4abi1 (= 4:4.8.5-0ubuntu0.1); however: Version of libkworkspace4abi1 on system is 4:4.8.5-0ubuntu0.2. kdm depends on kde-workspace-kgreet-plugins (= 4:4.8.5-0ubuntu0.1); however: Version of kde-workspace-kgreet-plugins on system is 4:4.8.5-0ubuntu0.2. dpkg: error processing kdm (--configure): dependency problems - leaving unconfigured dpkg: dependency problems prevent configuration of kubuntu-desktop: kubuntu-desktop depends on kdm; however: Package kdm is not configured yet. dpkg: error processing kubuntu-desktop (--configure): No apport report written because the error message indicates its a followup error from a previous failure. No apport report written because the error message indicates its a followup error from a previous failure. dependency problems - leaving unconfigured Errors were encountered while processing: kdm kubuntu-desktop Error in function: dpkg: dependency problems prevent configuration of kdm: kdm depends on libkworkspace4abi1 (= 4:4.8.5-0ubuntu0.1); however: Version of libkworkspace4abi1 on system is 4:4.8.5-0ubuntu0.2. kdm depends on kde-workspace-kgreet-plugins (= 4:4.8.5-0ubuntu0.1); however: Version of kde-workspace-kgreet-plugins on system is 4:4.8.5-0ubuntu0.2. dpkg: error processing kdm (--configure): dependency problems - leaving unconfigured dpkg: dependency problems prevent configuration of kubuntu-desktop: kubuntu-desktop depends on kdm; however: Package kdm is not configured yet. dpkg: error processing kubuntu-desktop (--configure): dependency problems - leaving unconfigured please help me i love Ubuntu & i want to repair it . Thanks

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• Fix Package is in a very bad inconsistent state

  - by Benjamin Piller

  I can't update my system because it freezes while installing a third-party update (zramswap-enabler)!! Sometimes I get the following message in Update manager: Could not initialize the package information An unresolvable problem occurred while initializing the package information. Please report this bug against the 'update-manager' package and include the following error message: E:The package zramswap-enabler needs to be reinstalled, but I can't find an archive for it. I tried to remove the zramswap-enabler, but it's impossible because I get the following message: dpkg: error processing zramswap-enabler (--remove): Package is in a very bad inconsistent state - you should reinstall it before attempting a removal. Errors were encountered while processing: zramswap-enabler E: Sub-process /usr/bin/dpkg returned an error code (1) Actually i would really reinstall that package, but it is unable to do it! If i remove this third-party PPA then the system is warning me about a very very serious problem. So why can i not install/reinstall/remove/update this package and why freezes the updater if i try to update? -S O L U T I O N-: Okay! Finally i found the solution for this Problem! Step 1. Make sure that your PPA is correctly Step 2. Remove the broken package via the following command: sudo dpkg --remove --force-remove-reinstreq zramswap-enabler Step 3. install the package again (sudo apt-get install zramswap-enabler) Step 4. After restart (not necessary) you are able to install the updates correctly! Actually you can fix any "Package is in a very bad inconsistent state” Issues with this solution!!!

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• Create Shortened goo.gl URLs in Your Favorite Browser

  - by Asian Angel

  Now that the new goo.gl URL shortening service has been active for a bit you may be wanting to add it to your favorite non Internet Explorer/Firefox browser. See how easy it is to enjoy that goo.gl URL shortening goodness with the “goo.gl with prompt for copying Bookmarklet”. goo.gl with Prompt for Copying Bookmarklet In Action To add the bookmarklet to your browser simply drag it to your “Bookmarks Toolbar” and get ready to start creating those shortened URLs. For our example we chose one of the wonderful malware removal articles here at the site. All that you will need to do is click on the bookmarklet to create your shortened URL. The wonderful thing about this bookmarklet is the small pop-up window that provides an easy way for you to copy the shortened URL. You can see the “Context Menu” for the small window here…definitely nice. Once you have copied your new URL you can close the window by clicking on “OK” or pressing “Enter”. Now you are ready to use your new shortened goo.gl URL wherever you like or need to. Conclusion If you have been wanting to add goo.gl URL shortening power to your favorite browser then this is the perfect bookmarklet to have. Links Add the goo.gl with Prompt for Copying Bookmarklet to Your Favorite Browser Similar Articles Productive Geek Tips See Where Shortened URLs “Link To” in Your Favorite BrowserVerify the Destinations of Shortened URLs the Easy WayA Quick Look at URL Shortening Services & ExtensionsCreate Shortened goo.gl URLs in Google Chrome the Easy WayText-Only URL Quick-Fix for Firefox TouchFreeze Alternative in AutoHotkey The Icy Undertow Desktop Windows Home Server – Backup to LAN The Clear & Clean Desktop Use This Bookmarklet to Easily Get Albums Use AutoHotkey to Assign a Hotkey to a Specific Window Latest Software Reviews Tinyhacker Random Tips DVDFab 6 Revo Uninstaller Pro Registry Mechanic 9 for Windows PC Tools Internet Security Suite 2010 Open Multiple Links At One Go NachoFoto Searches Images in Real-time Office 2010 Product Guides Google Maps Place marks – Pizza, Guns or Strip Clubs Monitor Applications With Kiwi LocPDF is a Visual PDF Search Tool

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• Manager/Container class vs static class methods

  - by Ben

  Suppose I a have a Widget class that is part of a framework used independently by many applications. I create Widget instances in many situations and their lifetimes vary. In addition to Widget's instance specified methods, I would like to be able to perform the follow class wide operations: Find a single Widget instance based on a unique id Iterate over the list of all Widgets Remove a widget from the set of all widgets In order support these operations, I have been considering two approaches: Container class - Create some container or manager class, WidgetContainer, which holds a list of all Widget instances, support iteration and provides methods for Widget addition, removal and lookup. For example in C#: public class WidgetContainer : IEnumerable<Widget { public void AddWidget(Widget); public Widget GetWidget(WidgetId id); public void RemoveWidget(WidgetId id); } Static class methods - Add static class methods to Widget. For example: public class Widget { public Widget(WidgetId id); public static Widget GetWidget(WidgetId id); public static void RemoveWidget(WidgetId id); public static IEnumerable<Widget AllWidgets(); } Using a container class has the added problem of how to access the container class. Make it a singleton?..yuck! Create some World object that provides access to all such container classes? I have seen many frameworks that use the container class approach, so what is the general consensus?

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• Cannot run update due to a dpkg error with burg-theme-minimal-sir

  - by boywithaxe

  I cannot run an update or indeed run $: apt-get remove due to a dpkg error with a package that's a part of super-boot-manager. Running an update returns: dpkg: error processing burg-theme-minimal-sir (--configure): subprocess installed post-installation script returned error exit status 1 I tried removing this package alone, with the same error, also trying to remove super-boot-manager returns: (Reading database ... 225474 files and directories currently installed.) Removing burg-theme-minimal-sir ... Generating burg.cfg ... /usr/sbin/burg-probe: error: cannot stat `/boot/burg/locale'. No path or device is specified. Try `/usr/sbin/burg-probe --help' for more information. dpkg: error processing burg-theme-minimal-sir (--remove): subprocess installed post-removal script returned error exit status 1 No apport report written because MaxReports is reached already Removing super-boot-manager ... Processing triggers for bamfdaemon ... Rebuilding /usr/share/applications/bamf.index... Processing triggers for desktop-file-utils ... Processing triggers for gnome-menus ... Processing triggers for hicolor-icon-theme ... Errors were encountered while processing: burg-theme-minimal-sir E: Sub-process /usr/bin/dpkg returned an error code (1) I'm sort of stuck now and Google has failed me. Has anyone encountered this problem before? Or does anyone know a way for fixing this?

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