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  • How to get jQuery to find the first list-item, rather than all list-items?

    - by ricebowl
    I'm trying to implement a basic jQuery infinite carousel. As much for the learning process as for anything else (as a rule I'm not a fan of re-inventing wheels, but...I have to learn somehow, might as well start with the basics). I've managed to get the list to animate left happily enough, but I'm stuck when it comes to selecting the first element of the list. I've tried to use: $('ul#services > li:first'); $('ul#services > li:first-child'); $('ul#services > li').eq([0]); (xhtml below), In each case a console.log(first) (the var name used) returns all of the list-items. Am I doing something blatantly, and obviously, wrong? The eventual plan is to clone the first li, append it to the parent ul, remove the li from the list and allow the list to scroll infinitely. It's just a list of services rather than links so I'm not -at the moment- planning to have scroll or left/right functionality. Current xhtml: <div class="wrapper"> <ul id="services"> <!-- closing the `</li>` tags on the following line is to remove whitespace in the horizontal list, doesn't seem to make a difference to the jQuery from my own testing. --> <li>one</li ><li>two</li ><li>three</li ><li>four</li ><li>five</li ><li>six</li ><li>seven</li ><li>eight</li ><li>nine</li ><li>ten</li> </ul> </div>

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  • I want to build a Google-friendly web app, where should I start?

    - by ronii
    I have only very basic experience with HTML/CSS and have quite a bit of experience with testing software and web apps from a consumer perspective. I'd love to launch a web application that plays nicely with Google services, similar to some of the apps you'd find on the Google Apps Marketplace, such as ManyMoon, time to note, Socialwok, etc. I'm a huge Google fan and would like to build something that's well integrated with other Google services. If you were a total beginner and wanted to build a complex app like one of examples above (project management, CRM, etc), where would you start? If you worked your ass off 18 hours a day, 24/7, how fast could you do it? I've dabbled into various languages and development frameworks, and read about which apps are using what languages but it's hard to figure out what would be most beneficial to jump into. Ruby on Rails, PHP, Google Web Toolkit, AppEngine. The list goes on and on. I want to be able to build and launch my own scalable web app. Thanks.

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  • Preview of code-only WPF controls in VS2010 - how?

    - by Christian
    Hi, I hope I am able to illustrate the problem using a lot of images. First of all, I was no real fan of XAML (Silverlight issues, crashes in Preview, and so on...) Now, with VS2010 the situation has become better. There are still a lot of things I like better in code, but I also want a preview in my VS. So, take a look at the following control: It is really simple, a todo details list. The first screenshot shows the code of the control, pretty straighforward: There is no XAML, so obviously no preview. Of course, I could encapsulate it in another control, like shown in the next screenshot: But, in that case I have an additional file I do not want or need. So I had the idea to move the init stuff inside the contructor of a XAML control. For simplicity, I used simple elements. But they do not show up in the preview... Finally, I know I could use the controls in other parts of my app when creating UIs. But I am using layout manager, PRISM and a lot of other stuff, so I just want an easy preview of some specific control I created (without having to have a XAML wrapper file for each control) Thanks for help, and sorry for the post structure, but I though with images it is better to understand... Chris

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  • XSL(like) declarative language as MVC view over strongtyped model?

    - by Martin Kool
    As a huge XSL fan, I am very happy to use xsl as the view in our proprietary MVC framework on ASP.NET. Objects in the model are serialized under the hood using .NET's xml serializer, and we use quite atomic xsl templates to declare how each object or property should transform. For example: <xsl:template match="/Article"> <html> <body> <div class="article"> <xsl:apply-templates /> </div> </body> </html> </xsl:template> <xsl:template match="Article/Title"> <h1> <xsl:apply-templates /> </h1> </xsl:template> <xsl:template match="@*|text()"> <xsl:copy /> </xsl:template> This mechanism allows us to quickly override default matching templates, like having a template matching on the last item in a list, or the selected one, etc. Also, xsl extension objects in .NET allow us just the bit of extra grip that we need. Common shared templates can be split up and included. However Even though I can ignore the verbosity downside of xsl (because Visual Studio schema intellisense + snippets really is slick, praise to the VS-team), the downside of not having intellisense over strongtyped objects in the model is really something that's bugging me. I've seen ASP.NET MVC + user controls in action and really starting to love it, but I wonder; Is there a way of getting some sort of intellisense over XML that we're iterating over, or do you know of a language that offers the freedom and declarativeness of XSL but has the strongtype/intellisense benefits of say webforms/usercontrols/asp.net.mvc-view? (I probably know the answer: "no", and I'll find myself using Phil Haack's utterly cool mvc shizzle soon...)

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  • Rails - Update a single attribute : link with custom action or form with hidden fields?

    - by MrRuru
    Let's say I have a User model, with a facebook_uid field corresponding to the user's facebook id. I want to allow the user to unlink his facebook account. Do do so, I need to set this attribute to nil. I currently see 2 ways of doing this First way : create a custom action and link to it # app/controllers/users_controller.rb def unlink_facebook_account @user = User.find params[:id] # Authorization checks go here @user.facebook_uid = nil @user.save # Redirection go here end # config/routes.rb ressources :users do get 'unlink_fb', :on => :member, :as => unlink_fb end # in a view = link_to "Unlink your facebook account", unlink_fb_path(@user) Second way : create a form to the existing update action # app/views/user/_unlink_fb_form.html.haml = form_for @user, :method => "post" do |f| = f.hidden_field :facebook_uid, :value => nil = f.submit "Unlink Facebook account" I'm not a big fan of either way. In the first one, I have to add a new action for something that the update controller already can do. In the second one, I cannot set the facebook_uid to nil without customizing the update action, and I cannot have a link instead of a button without adding some javascript. Still, what would you recommend as the best and most elegant solution for this context? Did I miss a third alternative?

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  • Action on each method's return value

    - by RobGlynn
    What I'd like to do is take some action using the value returned by every method in a class. So for instance, if I have a class Order which has a method public Customer GetCustomer() { Customer CustomerInstance = // get customer return CustomerInstance; } Let's say I want to log the creation of these - Log(CustomerInstance); My options (AFAIK) are: Call Log() in each of these methods before returning the object. I'm not a fan of this because it gets unwieldy if used on a lot of classes with a lot of methods. It also is not an intrinsic part of the method's purpose. Use composition or inheritance to layer the log callon the Order class similar to: public Customer GetCustomer() { Customer CustomerInstance = this.originalCustomer.GetCustomer(); Log(CustomerInstance); return CustomerInstance; } I don't think this buys me anything over #1. Create extension methods on each of the returned types: Customer CustomerInstance = Order.GetCustomer().Log(); which has just as many downsides. I'm looking to do this for every (or almost every) object returned, automatically if possible, without having to write double the amount of code. I feel like I'm either trying to bend the language into doing something it's not supposed to, or failing to recognize some language feature that would enable this. Possible solutions would be greatly appreciated.

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  • Shell halts while looping and 'transforming' values in dictionary (Python 2.7.5)

    - by Gus
    I'm building a program that will sum digits in a given list in a recursive way. Say, if the source list has 10 elements, the second list will have 9, the third 8 and so on until the last list that will have only one element. This is done by adding the first element to the second, then the second to the third and so on. I'm stuck without feedback from the shell. It halts without throwing any errors, then in a couple of seconds the fan is spinning like crazy. I've read quite a few posts here and changed my approach, but I'm not sure that what have so far can produce the results I'm looking for. Thanks in advance: #--------------------------------------------------- #functions #--------------------------------------------------- #sum up pairs in a list def reduce(inputList): i = 0 while (i < len(inputList)): #ref to current and next item j = i + 1 #don't go for the last item if j != len(inputList): #new number eq current + next number newNumber = inputList[i] + inputList[j] if newNumber >= 10: #reduce newNumber to single digit newNumber = sum(map(int, str(newNumber))) #collect into temp list outputList.append(newNumber) i = i + 1 return outputList; #--------------------------------------------------- #program starts here #--------------------------------------------------- outputList = [] sourceList = [7, 3, 1, 2, 1, 4, 6] counter = len(sourceList) dict = {} dict[0] = sourceList print '-------------' print 'Level 0:', dict[0] for i in range(counter): j = i + 1 if j != counter: baseList = dict.get(i) #check function to understand what it does newList = reduce(baseList) #new key and value from previous/transformed value dict[j] = newList print 'Level %d: %s' % (j, dict[j])

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  • what appropriate "Allocation Unit Size" for an exFAT SD card with ReadyBoost

    - by Revolter
    I've brought an 4GB SD card and I'm dedicating it for use by ReadyBoost (on Windows7) Im looking to get the most profit on performance, so i've formatted it with exFAT (as recommended by Microsoft) but I have some doubts to define what best .Allocation Unit Size* I should choose. Since I can't get how ReadyBoost/SD card exactly read/seek the data, can someone tell what make choosing an Allocation Unit Size in favor of another for this scheme ? Apparently, ReadyBoost is allocating all the free space in SD card as one huge file, so a big Allocation Unit Size is advised for fastest reading time. I'm not confusing with ordinary HDD's ?

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  • Windows 7 can't copy file - Error 0x800700DF: The file size exceeds the limit allowed and cannot be

    - by JJGroover
    Any attempt to copy files larger than about 40 MB from a network share (a SAN running open filer / Samba) to my local machine running Windows 7 always results in the following error and the copy fails: Error 0x800700DF: The file size exceeds the limit allowed and cannot be saved. I've tried copying to my C: drive and a USB drive with the same results. Smaller files copy just fine. Clearly 40 MB is not that big of a file so I'm assuming it is some buggy interaction between windows 7 and Samba perhaps. Google has so far turned up nothing. Can anyone point me in the right direction?

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  • How would you apply a BIOS update for a Dell M610 blade with VMware ESXi installed?

    - by Guamaniac
    Hello, all. We've got a Dell M610 blade with VMware ESXi 4 installed and we need to update it's BIOS to the latest version. Unfortunately, Dell only makes available a Windows (.exe) and Linux (.bin) versions of the BIOS update program (as well as a bootable DOS floppy version that is too big to fit on a 1.44MB floppy!). We've tried using various "LiveCD" versions of linux distributions but keep running into errors. Anyone out there with experience with Dell blades who could give us a hint or two to get this working? Thanks a lot, in advance. Joe

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  • Microsoft Office documents collaboration - Open Source alternative

    - by Saggi Malachi
    I am looking for a good solution to collaborate on Microsoft Office documents, we currently just edit directly on a Samba share but it's one big mess because sometimes people leave the office with their laptops while docs are open so swap files remain there and then you nobody is sure what's going on. Is there any good and simple open source solution based on Linux? I've tried Alfresco but it is much more than what I need, we got an internal wiki for most collaboration and I just need some solution for the stuff we need to do in Microsoft Office (mostly Excel files, the rest is in the wiki) EDIT: Some more info as requested - we are very small group, 4 full time employees and a few freelancers. The best idea I've got so far is just managing it in a subversion repository with a Lock-Modify-Lock policy but I'd love to hear about better solutions. Thanks!

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  • BIOS upgrade lowers CPU temperature

    - by N.N.
    Setup I've got a system with an Asus P8Z68-V PRO motherboard and an Intel Core i7-2600K CPU running at stock speed (no overlocking) which I cool with a Noctua NH-U12P. On the heatsink I've got the two included fans connected via the included Low-Noise Adapters (L.N.A.) 1100 RPM, 16.9 dB(A). In the BIOS settings I've set the CPU and chassis fan profile to silent. Issue Yesterday I upgraded from BIOS version 0501 to 0606. After the upgrade I checked the temperatures in the BIOS monitor and was surprised to see that the CPU temperature was slightly ~30°C. Before the upgrade the CPU temperature was ~50°C with the same BIOS settings (see the following heading for details on temperatures). How can this be? It seems a bit odd that a BIOS upgrade can lower the CPU temperature by 20°C and it also seems odd that the CPU temperature is lower than the chassis temperature. Temperatures When I've checked temperatures the room temperature has been ~23°C. I haven't changed the placement of the computer nor the hardware or cooling setup between BIOS versions. BIOS version 0501 BIOS monitor: CPU: ~50°C Chassis: ~33°C I haven't got any temperature measures from lm-sensors or the like for version 0501 because I only discovered the issue after upgrading to version 0606 and the BIOS updater utility won't let me downgrade to version 0501 (it says "outdated image" when I try to load version 0501). BIOS version 0606 BIOS monitor: CPU: ~30°C Chassis: ~33°C lm-sensors in Ubuntu 11.04 Desktop 64-bit (sudo sensors after an uptime of 4 h 52 min and a load average of 0.22, 0.18, 0.15): coretemp-isa-0000 Adapter: ISA adapter Core 0: +32.0°C (high = +80.0°C, crit = +98.0°C) coretemp-isa-0001 Adapter: ISA adapter Core 1: +35.0°C (high = +80.0°C, crit = +98.0°C) coretemp-isa-0002 Adapter: ISA adapter Core 2: +29.0°C (high = +80.0°C, crit = +98.0°C) coretemp-isa-0003 Adapter: ISA adapter Core 3: +36.0°C (high = +80.0°C, crit = +98.0°C) The BIOS monitor temperatures was checked directly after the lm-sensors temperatures was checked. BIOS version 0706, 0801, 1101 and 3203 I get the same kind of temperatures both in the BIOS monitor and with lm-sensors in BIOS version 0706, 0801, 1101 and 3203 as in 0606. Information from Asus The 0606 changelog mentions nothing explicitly about CPU temperature (but item 3., as indicated by sidran32, might affect temperatures): P8Z68-V PRO 0606 BIOS with IRST 10.6.0.1002 Enable the support of Intel Rapid Storage Technology version 10.6.0.1002 Release Improve DRAM compatibility Improve System stability Improve compatibility with some Raid card model Increase IGD share memory size to 512MB However the following FAQ might give a hint: FAQs I find that the CPU temperature reading in BIOS is about 10~20 degrees centigrade hotter than the reading in OS. Is it normal? Page Tools Solution That is normal as BIOS does not send idle command to the CPU, making most of the power saving features useless. You should be getting similar reading if you disable EIST/C1E/CPU C3 Report/CPU C6 Report in BIOS.

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  • ps1xml is not digitally signed

    - by blsub6
    I'm trying to load Exchange Management Shell and it gives me a big 'ol red error that says: Import-Module : There were errors in loading the format data file: Microsoft.PowerShell, , %APPDATA%\Roaming\Microsoft\Exchange\RemotePowerShell\DOMAINNAME.format.ps1xml : File skipped because of the following validation exception: File %APPDATA%\Roaming\Microsoft\Exchange\RemotePowerShell\DOMAINNAME.format.ps1xml cannot be loaded. The file %APPDATA%\Roaming\Microsoft\ExchangeRemotePowerShell\DOMAINNAME\DOMAINNAME.format.ps1xml is not digitally signed. The script will not execute on the system. Please see "get-help about_signing" for more details... The %APPDATA% is stored on an external server on my network (that I can ping to without problems). I am missing a ton of PS cmdlets too, which I'm presuming are stored in '*.format.ps1xml' Can someone tell me where to start?

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  • Ubuntu hibernate resume fails: "PM: Resume from disk failed"

    - by Neil
    I just upgraded to Ubuntu 10.4 from 9.10, and it's now hiding the hibernate and suspend options. How do I get them back? So the way you do this is make sure that your swap partition is in /etc/fstab and swap is enabled, and big enough. Look at /proc/swaps to see if anything is listed. Now I'm getting this error when I boot after suspending: init: ureadahead-other main process (705) terminated with status 4 Does anyone know how to fix this? I'm using Ubuntu with kernel 2.6.32-22-generic.

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  • kernel panic with exitcode=0x00000004 and no call trace

    - by litmusconfig
    A bit of background first - I'm trying to configure a MicroBlaze Linux (big-endian version) system on a Xilinx ML506 eval board. The goal is to use the second partition of a CompactFlash card attached to the Xilinx SystemACE controller. So far, root in initramfs works and after boot, I can mount and use said partition, no problem. But if I try to use it right from the getgo with the "root=/dev/xsa2" kernel command line parameter, the system hangs with [...] Freeing unused kernel memory: 143k freed Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000004 And that's it - no regdump, no call trace, no further nothing from the serial console, even though kernel has been configured with debugging enabled. Now, I'm pretty new at this, so is there something else I should be doing to see something more informative from the kernel?

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  • shrink size of ova file in virtualbox

    - by 130490868091234
    I've got an Ubuntu 64bit VM that I derived from a ~1GB ova file, I used it under VMware vSphere to install some more software on it and use the system against a few datasets that took some 2-3GB of space, but now that I deleted these big files, I was expecting that the newly generated ova file from it would also take about ~1.1GB of space, but instead is taking about 3GB. If I look at the details the .vmdk file in virtualbox, I see the following: Hart Disk: SATA Port 0 Type (Format): Normal (VMDK) Virtual Size: 8.00 GB Actual Size: 7.90 GB Details: Dynamically allocated storage Location: /somewhere/myVM-disk1.vmdk Attached To: myVM.virtualbox The size of the ova when I export this machine is ~3GB. Any ideas how I can shrink it?

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  • Packet loss rate with iperf and tcpdump

    - by stefita
    I tested a line for its link quality with iperf. The measured speed (UDP port 9005) was 96Mbps, which is fine, because both servers are connected with 100Mbps to the internet. On the other hand the datagram loss rate was shown to be 3.3-3.7%, which I found a little too much. Using a high-speed transfer protocol I recorded the packets on both sides with tcpdump. Than I calculated the packet loss - average 0.25%. Have anyone an explanation, where this big difference may be coming from? What is an acceptable packet loss in your opinion?

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  • PHP IDE for Ubuntu Netbook Remix 9.10

    - by Alix Axel
    I've installed Ubuntu Netbook Remix on my netbook and I'm wondering what would be a good IDE to use for mainly PHP development. I've used Komodo Edit in past Linux distributions but it doesn't seem to play well with Ubuntu Network Remix (it doesn't shows up in the remix "desktop", and I don't feel like opening the terminal and typing komodo every time I need to code). I'm considering Eclipse with a PHP plugin, but I've two big problems with Eclipse: I don't like the way it forces me to create a new project when I just want to edit a file. I'm not sure which PHP plugin I should install: Eclipse PDT, PHP Eclipse or Aptana - I don't really understand the differences between Eclipse PDT and PHP Eclipse. Which IDE would you recommend (doesn't need to be Eclipse)? Thanks in advance!

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  • Exposing BL as WCF service

    - by Oren Schwartz
    I'm working on a middle-tier project which encapsulates the business logic (uses a DAL layer, and serves a web application server [ASP.net]) of a product deployed in a LAN. The BL serves as a bunch of services and data objects that are invoked upon user action. At present times, the DAL acts as a separate application whereas the BL uses it, but is consumed by the web application as a DLL. Both the DAL and the web application are deployed on different servers inside organization, and since the BL DLL is consumed by the web application, it resides in the same server. The worst thing about exposing the BL as a DLL is that we lost track with what we expose. Deployment is not such a big issue since mostly, product versions are deployed together. Would you recommend migrating from DLL to WCF service? if so, why ? Do you know anyone who had a similar experience ?

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  • Exposing BL as WCF service

    - by Oren Schwartz
    I'm working on a middle-tier project which encapsulates the business logic (uses a DAL layer, and serves a web application server [ASP.net]) of a product deployed in a LAN. The BL serves as a bunch of services and data objects that are invoked upon user action. At present times, the DAL acts as a separate application whereas the BL uses it, but is consumed by the web application as a DLL. Both the DAL and the web application are deployed on different servers inside organization, and since the BL DLL is consumed by the web application, it resides in the same server. The worst thing about exposing the BL as a DLL is that we lost track with what we expose. Deployment is not such a big issue since mostly, product versions are deployed together. Would you recommend migrating from DLL to WCF service? if so, why ? Do you know anyone who had a similar experience ? Thank you !

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  • Mail on OS X not fetching new Gmail mail – Among other issues

    - by Josh K
    It started after my 10.6.3 update. I'm basically looking for a "Clear cache" button in Mail. It won't fetch new Gmail (big problem), and there are six copies of the same message in my Inbox that won't delete (spits out the following error). I want to know if (a) anyone else has noticed this issue or (b) found a solution for a similar problem. It's worth it to note that I was getting the dreaded Finder -10810 Won't Start error, along with the progressive lose of control. This prompted two (2) hard resets of the machine and then I immediately went and installed this update. Has not happened since the update but now it's the mail issue.

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  • SQL Server 2008 to Sybase Linked Server (x64) -- Provider and permissions issues

    - by Cory Larson
    Good morning, We're testing a new SQL Server 2008 setup (64-bit) and one of our requirements was to get a linked server up and talking to a Sybase database. We've successfully done so using Sybase's 64-bit 15.5 drivers, however I can't expand the catalog list from a remote machine (connecting to the '08 box with SSMS) without having my network account being added as an Administrator on the actual box and then using Windows Authentication to connect to the server instance. This is going to be problematic when we go live. Has anybody experienced this, or have any input on the permissions in SQL Server 2008 with regards to linked servers? If I remove my network account from the Administrators group, the big error I'm getting is a 'Msg 7302, Level 16, State 1, Line 41' with a description something like "Cannot create an instance of OLE DB provider "ASEOLEDB" for linked server "", and all research points to permissions issues. Thoughts? This document talks about DCOM configuration and permissions, but we've tried all of it with no luck. Thanks

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  • OS for Virtual Private Server (VPS)

    - by B. Stran
    Hi guys! I'm new to VPS managing and I need to chose which OS to install on my VPS. I have the following alternatives: CentOS 5.2 Ubuntu 9.10 Ubuntu Server edition 8.10 Debian 5.0 Lenny Debian 4.0 Etch Gentoo Minimal 10.0 I tried to install couple of them, I've also installed Webmin and doesn't really see any big differences among them. Which one would you suggest for someone who is just learning (but it's going to be a working server as soon as I'm done with testing)? Which one uses less resources (I have only 256 MB of RAM)? Any suggestions are greatly appreciated.

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  • what service to restart for /var/log/auth.log to start

    - by Bond
    Here is a situation since the log files on my server had grown to several Gigabytes I took a backup of directory /var/log and then manually when to each subdirectory of /var/log and the files which were big in size I did cat > /var/log/file_which_is_big press 2 times enter key (basically over wrote those files with a blank space) and then Ctrl+C So basically I over wrote those files to be blank. Now when I open /var/log/auth.log I don't see any entry (which is expected also since I over wrote) but when I exit the SSH session and login again then also I do not see any entry in auth.log is there any way other than rebooting the machine to make sure I keep getting the entries in /var/log/auth.log I am not sure which service writes in this file. This is a Ubuntu 10.04 server.

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  • how to multi-boot/upgrade linux from LVM-based partition

    - by kenny-bobby
    i currently have FC3 linux which installed itself on the hard disk using LVM partitioning, so it is basically all one big partition. i would like to try some other distributions and upgrade to something newer, but don't want to lose my current capabilities and data files, and i know nothing or less about LVM. Is it possible (and if so an example would be nice) to install a non-LVM-based distribution on the LVM disk and have multi-boot options? Or do i have to start over new and drop the LVM? My guess is that i should save my /home (data files and .rc files) on a backup device first, then somewhere/somehow create a new partion for installing another distribution. Any LVM experts out there that have tried anything like this--well i sure could use some pointers and advice...

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