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• Check if files in a directory are still being written using Windows Batch Script

  - by FMFF

  Hello. Here's my batch file to parse a directory, and zip files of certain type REM Begin ------------------------ tasklist /FI "IMAGENAME eq 7za.exe" /FO CSV > search.log FOR /F %%A IN (search.log) DO IF %%~zA EQU 0 GOTO end for /f "delims=" %%A in ('dir C:\Temp\*.ps /b') do ( "C:\Program Files\7-Zip\cmdline\7za.exe" a -tzip -mx9 "C:\temp\Zip\%%A.zip" "C:\temp\%%A" Move "C:\temp\%%A" "C:\Temp\Archive" ) :end del search.log REM pause exit REM End --------------------------- This code works just fine for 90% of my needs. It will be deployed as a scheduled task. However, the *.ps files are rather large (minimum of 1GB) in real time cases. So the code is supposed to check if the incoming file is completely written and is not locked by the application that is writing it. I saw another example elsewhere, that suggested the following approach :TestFile ren c:\file.txt c:\file.txt if errorlevel 0 goto docopy sleep 5 goto TestFile :docopy However this example is good for a fixed file. How can I use that many labels and GoTo's inside a for loop without causing an infinite loop? Or is this code safe to be used in the For Loop? Thank you for any help.

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• How to duplicate all data in a table except for a single column that should be changed.

  - by twiga

  I have a question regarding a unified insert query against tables with different data structures (Oracle). Let me elaborate with an example: tb_customers ( id NUMBER(3), name VARCHAR2(40), archive_id NUMBER(3) ) tb_suppliers ( id NUMBER(3), name VARCHAR2(40), contact VARCHAR2(40), xxx, xxx, archive_id NUMBER(3) ) The only column that is present in all tables is [archive_id]. The plan is to create a new archive of the dataset by copying (duplicating) all records to a different database partition and incrementing the archive_id for those records accordingly. [archive_id] is always part of the primary key. My problem is with select statements to do the actual duplication of the data. Because the columns are variable, I am struggling to come up with a unified select statement that will copy the data and update the archive_id. One solution (that works), is to iterate over all the tables in a stored procedure and do a: CREATE TABLE temp as (SELECT * from ORIGINAL_TABLE); UPDATE temp SET archive_id=something; INSERT INTO temp (select * from temp); DROP TABLE temp; I do not like this solution very much as the DDL commands muck up all restore points. Does anyone else have any solution?

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• What is the most secure way to archive a GKScore to be re-submitted later?

  - by Jonathan Sibley

  I'm looking for the safest way to archive and store a GKScore that needs to be re-submitted to Game Center (say, because the user didn't have a network connection at the time the score was earned). I would like to archive the GKScore instance in case the app is terminated before it can be successfully re-submitted to Game Center. My worry is that if it's archived to an instance of NSData and saved in a .plist, it would be easy to manipulate. Perhaps this worry is unjustified? NOTE: I posted a similar question on Stack Overflow only to realize that it's better asked here.

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• Why /home folder is missing from my backup archive created by tar?

  - by Konstantin Pereyaslov

  So I'm doing full backup of my VPS using the following command (as root, of course): tar czvf 20120604.tar.gz / Everything seems to be fine, all files seem to appear in the list. The size of archive is 6 Gb and gunzipped version is 11 Gb which includes /home, because I totally have 11 Gb of data on VPS. But when I try actually to unpack archive, or open it using mc or WinRAR, there's no /home folder. And WinRAR tells 20120604.tar.gz - TAR+GZIP archive, unpacked size 894 841 346 bytes. It can't be WinRAR's bug, because when I type tar xzvf 20120604.tar.gz, /home folder isn't unpacked either. Why is /home folder missing from my archive? And what can I do to include it there? tar --version outputs the following: tar (GNU tar) 1.15.1

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• Is there a way to determine the original size or file count of a 7-zip archive?

  - by Zac B

  I know that when I compress an archive with the 7za utility, it gives me stats like the number of files processed and the amount of bytes processed (the original size of the data). Is it possible, using the commandline (on linux) or some programming language, to determine: the original size of an archive, before it was compressed? the number of files/directories contained within an archive? The answer might be "no, just decompress the whole archive and do counting/sizing then", but it would be useful to know if there was a faster/less space-greedy way.

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• Is there a way to make 7zip temporarly uncompress the whole archive when double-clicking on an exe?

  - by Gnoupi

  In WinRAR, one feature which I like is the fact that you can set it to uncompress the whole archive in a temporary place, if you double-click on an .exe file inside the archive opened in WinRAR. Typically, I often download small games, which I just want to try, without the hassle of creating a folder for it, etc. Same for archives containing an installer with its own separate files. In the 7-zip window, if I double-click an exe, it will just extract the exe in a temporary location and launch it. In the small game context (or installer), it means that it will simply fail, because it will miss required files in the same folder. So my question is: Is there a way to make 7-zip extract the whole archive in a temporary folder when launching an exe from inside the archive?

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• How to archive data from a table to a local or remote database in SQL 2005 and SQL 2008

  - by simonsabin

  Often you have the need to archive data from a table. This leads to a number of challenges 1. How can you do it without impacting users 2. How can I make it transactionally consistent, i.e. the data I put in the archive is the data I remove from the main table 3. How can I get it to perform well Points 1 is very much tied to point 3. If it doesn't perform well then the delete of data is going to cause lots of locks and thus potentially blocking. For points 1 and 3 refer to my previous posts DELETE-TOP-x-rows-avoiding-a-table-scan and UPDATE-and-DELETE-TOP-and-ORDER-BY---Part2. In essence you need to be removing small chunks of data from your table and you want to do that avoiding a table scan. So that deals with the delete approach but archiving is about inserting that data somewhere else. Well in SQL 2008 they introduced a new feature INSERT over DML (Data Manipulation Language, i.e. SQL statements that change data), or composable DML. The ability to nest DML statements within themselves, so you can past the results of an insert to an update to a merge. I've mentioned this before here SQL-Server-2008---MERGE-and-optimistic-concurrency. This feature is currently limited to being able to consume the results of a DML statement in an INSERT statement. There are many restrictions which you can find here http://msdn.microsoft.com/en-us/library/ms177564.aspx look for the section "Inserting Data Returned From an OUTPUT Clause Into a Table" Even with the restrictions what we can do is consume the OUTPUT from a DELETE and INSERT the results into a table in another database. Note that in BOL it refers to not being able to use a remote table, remote means a table on another SQL instance. To show this working use this SQL to setup two databases foo and fooArchive create database foo go --create the source table fred in database foo select * into foo..fred from sys.objects go create database fooArchive go if object_id('fredarchive',DB_ID('fooArchive')) is null begin     select getdate() ArchiveDate,* into fooArchive..FredArchive from sys.objects where 1=2       end go And then we can use this simple statement to archive the data insert into fooArchive..FredArchive select getdate(),d.* from (delete top (1)         from foo..Fred         output deleted.*) d         go In this statement the delete can be any delete statement you wish so if you are deleting by ids or a range of values then you can do that. Refer to the DELETE-TOP-x-rows-avoiding-a-table-scan post to ensure that your delete is going to perform. The last thing you want to do is to perform 100 deletes each with 5000 records for each of those deletes to do a table scan. For a solution that works for SQL2005 or if you want to archive to a different server then you can use linked servers or SSIS. This example shows how to do it with linked servers. [ONARC-LAP03] is the source server. begin transaction insert into fooArchive..FredArchive select getdate(),d.* from openquery ([ONARC-LAP03],'delete top (1)                     from foo..Fred                     output deleted.*') d commit transaction and to prove the transactions work try, you should get the same number of records before and after. select (select count(1) from foo..Fred) fred        ,(select COUNT(1) from fooArchive..FredArchive ) fredarchive   begin transaction insert into fooArchive..FredArchive select getdate(),d.* from openquery ([ONARC-LAP03],'delete top (1)                     from foo..Fred                     output deleted.*') d rollback transaction   select (select count(1) from foo..Fred) fred        ,(select COUNT(1) from fooArchive..FredArchive ) fredarchive The transactions are very important with this solution. Look what happens when you don't have transactions and an error occurs   select (select count(1) from foo..Fred) fred        ,(select COUNT(1) from fooArchive..FredArchive ) fredarchive   insert into fooArchive..FredArchive select getdate(),d.* from openquery ([ONARC-LAP03],'delete top (1)                     from foo..Fred                     output deleted.*                     raiserror (''Oh doo doo'',15,15)') d                     select (select count(1) from foo..Fred) fred        ,(select COUNT(1) from fooArchive..FredArchive ) fredarchive Before running this think what the result would be. I got it wrong. What seems to happen is that the remote query is executed as a transaction, the error causes that to rollback. However the results have already been sent to the client and so get inserted into the

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• nm-applet gone?

  - by welp

  nm-applet seems to have disappeared from my system. I am running 12.10. Here's what I get when I check my package manager logs: ? ~ grep network-manager /var/log/dpkg.log 2012-10-06 10:37:08 upgrade network-manager-gnome:amd64 0.9.6.2-0ubuntu5 0.9.6.2-0ubuntu6 2012-10-06 10:37:08 status half-configured network-manager-gnome:amd64 0.9.6.2-0ubuntu5 2012-10-06 10:37:08 status unpacked network-manager-gnome:amd64 0.9.6.2-0ubuntu5 2012-10-06 10:37:08 status half-installed network-manager-gnome:amd64 0.9.6.2-0ubuntu5 2012-10-06 10:37:08 status half-installed network-manager-gnome:amd64 0.9.6.2-0ubuntu5 2012-10-06 10:37:08 status half-installed network-manager-gnome:amd64 0.9.6.2-0ubuntu5 2012-10-06 10:37:08 status half-installed network-manager-gnome:amd64 0.9.6.2-0ubuntu5 2012-10-06 10:37:08 status half-installed network-manager-gnome:amd64 0.9.6.2-0ubuntu5 2012-10-06 10:37:08 status half-installed network-manager-gnome:amd64 0.9.6.2-0ubuntu5 2012-10-06 10:37:08 status half-installed network-manager-gnome:amd64 0.9.6.2-0ubuntu5 2012-10-06 10:37:09 status half-installed network-manager-gnome:amd64 0.9.6.2-0ubuntu5 2012-10-06 10:37:09 status unpacked network-manager-gnome:amd64 0.9.6.2-0ubuntu6 2012-10-06 10:37:09 status unpacked network-manager-gnome:amd64 0.9.6.2-0ubuntu6 2012-10-06 10:39:50 configure network-manager-gnome:amd64 0.9.6.2-0ubuntu6 2012-10-06 10:39:50 status unpacked network-manager-gnome:amd64 0.9.6.2-0ubuntu6 2012-10-06 10:39:50 status unpacked network-manager-gnome:amd64 0.9.6.2-0ubuntu6 2012-10-06 10:39:50 status half-configured network-manager-gnome:amd64 0.9.6.2-0ubuntu6 2012-10-06 10:39:50 status installed network-manager-gnome:amd64 0.9.6.2-0ubuntu6 2012-10-28 22:27:23 status installed network-manager-gnome:amd64 0.9.6.2-0ubuntu6 2012-10-28 22:27:23 remove network-manager-gnome:amd64 0.9.6.2-0ubuntu6 2012-10-28 22:27:23 status half-configured network-manager-gnome:amd64 0.9.6.2-0ubuntu6 2012-10-28 22:27:23 status half-installed network-manager-gnome:amd64 0.9.6.2-0ubuntu6 2012-10-28 22:27:23 status half-installed network-manager-gnome:amd64 0.9.6.2-0ubuntu6 2012-10-28 22:27:23 status half-installed network-manager-gnome:amd64 0.9.6.2-0ubuntu6 2012-10-28 22:27:23 status half-installed network-manager-gnome:amd64 0.9.6.2-0ubuntu6 2012-10-28 22:27:23 status half-installed network-manager-gnome:amd64 0.9.6.2-0ubuntu6 2012-10-28 22:27:23 status half-installed network-manager-gnome:amd64 0.9.6.2-0ubuntu6 2012-10-28 22:27:23 status half-installed network-manager-gnome:amd64 0.9.6.2-0ubuntu6 2012-10-28 22:27:23 status half-installed network-manager-gnome:amd64 0.9.6.2-0ubuntu6 2012-10-28 22:27:23 status config-files network-manager-gnome:amd64 0.9.6.2-0ubuntu6 2012-10-28 22:27:23 status config-files network-manager-gnome:amd64 0.9.6.2-0ubuntu6 2012-10-31 19:58:03 install network-manager-gnome:amd64 0.9.6.2-0ubuntu6 0.9.6.2-0ubuntu6 2012-10-31 19:58:03 status half-installed network-manager-gnome:amd64 0.9.6.2-0ubuntu6 2012-10-31 19:58:03 status half-installed network-manager-gnome:amd64 0.9.6.2-0ubuntu6 2012-10-31 19:58:03 status half-installed network-manager-gnome:amd64 0.9.6.2-0ubuntu6 2012-10-31 19:58:03 status half-installed network-manager-gnome:amd64 0.9.6.2-0ubuntu6 2012-10-31 19:58:03 status half-installed network-manager-gnome:amd64 0.9.6.2-0ubuntu6 2012-10-31 19:58:03 status half-installed network-manager-gnome:amd64 0.9.6.2-0ubuntu6 2012-10-31 19:58:03 status half-installed network-manager-gnome:amd64 0.9.6.2-0ubuntu6 2012-10-31 19:58:03 status half-installed network-manager-gnome:amd64 0.9.6.2-0ubuntu6 2012-10-31 19:58:03 status unpacked network-manager-gnome:amd64 0.9.6.2-0ubuntu6 2012-10-31 19:58:03 status unpacked network-manager-gnome:amd64 0.9.6.2-0ubuntu6 2012-10-31 19:58:06 configure network-manager-gnome:amd64 0.9.6.2-0ubuntu6 2012-10-31 19:58:06 status unpacked network-manager-gnome:amd64 0.9.6.2-0ubuntu6 2012-10-31 19:58:07 status unpacked network-manager-gnome:amd64 0.9.6.2-0ubuntu6 2012-10-31 19:58:07 status half-configured network-manager-gnome:amd64 0.9.6.2-0ubuntu6 2012-10-31 19:58:07 status installed network-manager-gnome:amd64 0.9.6.2-0ubuntu6 ? ~ Unfortunately, I cannot find network-manager-applet package at all: ? ~ apt-cache search network-manager-applet ? ~ Here are the contents of /etc/apt/sources.list: ? ~ cat /etc/apt/sources.list # deb cdrom:[Ubuntu 12.04 LTS _Precise Pangolin_ - Release amd64 (20120425)]/ dists/precise/main/binary-i386/ # deb cdrom:[Ubuntu 12.04 LTS _Precise Pangolin_ - Release amd64 (20120425)]/ dists/precise/restricted/binary-i386/ # deb cdrom:[Ubuntu 12.04 LTS _Precise Pangolin_ - Release amd64 (20120425)]/ precise main restricted # See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to # newer versions of the distribution. deb http://gb.archive.ubuntu.com/ubuntu/ quantal main restricted deb-src http://gb.archive.ubuntu.com/ubuntu/ quantal main restricted ## Major bug fix updates produced after the final release of the ## distribution. deb http://gb.archive.ubuntu.com/ubuntu/ quantal-updates main restricted deb-src http://gb.archive.ubuntu.com/ubuntu/ quantal-updates main restricted ## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu ## team. Also, please note that software in universe WILL NOT receive any ## review or updates from the Ubuntu security team. deb http://gb.archive.ubuntu.com/ubuntu/ quantal universe deb-src http://gb.archive.ubuntu.com/ubuntu/ quantal universe deb http://gb.archive.ubuntu.com/ubuntu/ quantal-updates universe deb-src http://gb.archive.ubuntu.com/ubuntu/ quantal-updates universe ## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu ## team, and may not be under a free licence. Please satisfy yourself as to ## your rights to use the software. Also, please note that software in ## multiverse WILL NOT receive any review or updates from the Ubuntu ## security team. deb http://gb.archive.ubuntu.com/ubuntu/ quantal multiverse deb-src http://gb.archive.ubuntu.com/ubuntu/ quantal multiverse deb http://gb.archive.ubuntu.com/ubuntu/ quantal-updates multiverse deb-src http://gb.archive.ubuntu.com/ubuntu/ quantal-updates multiverse ## N.B. software from this repository may not have been tested as ## extensively as that contained in the main release, although it includes ## newer versions of some applications which may provide useful features. ## Also, please note that software in backports WILL NOT receive any review ## or updates from the Ubuntu security team. deb http://gb.archive.ubuntu.com/ubuntu/ quantal-backports main restricted universe multiverse deb-src http://gb.archive.ubuntu.com/ubuntu/ quantal-backports main restricted universe multiverse deb http://security.ubuntu.com/ubuntu quantal-security main restricted deb-src http://security.ubuntu.com/ubuntu quantal-security main restricted deb http://security.ubuntu.com/ubuntu quantal-security universe deb-src http://security.ubuntu.com/ubuntu quantal-security universe deb http://security.ubuntu.com/ubuntu quantal-security multiverse deb-src http://security.ubuntu.com/ubuntu quantal-security multiverse ## Uncomment the following two lines to add software from Canonical's ## 'partner' repository. ## This software is not part of Ubuntu, but is offered by Canonical and the ## respective vendors as a service to Ubuntu users. # deb http://archive.canonical.com/ubuntu precise partner # deb-src http://archive.canonical.com/ubuntu precise partner ## This software is not part of Ubuntu, but is offered by third-party ## developers who want to ship their latest software. deb http://extras.ubuntu.com/ubuntu quantal main deb-src http://extras.ubuntu.com/ubuntu quantal main ? ~ Right now, I can't think of anything else. Happy to provide more info upon request.

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• Unable to apt-get upgrade in ubuntu 11.10

  - by blackhole

  These are the errors shows by different client Update Manager: Traceback (most recent call last): File "/usr/lib/python2.7/dist-packages/aptdaemon/worker.py", line 968, in simulate trans.unauthenticated = self._simulate_helper(trans) File "/usr/lib/python2.7/dist-packages/aptdaemon/worker.py", line 1092, in _simulate_helper return depends, self._cache.required_download, \ File "/usr/lib/python2.7/dist-packages/apt/cache.py", line 235, in required_download pm.get_archives(fetcher, self._list, self._records) SystemError: E:Method has died unexpectedly!, E:Sub-process returned an error code (100), E:Method /usr/lib/apt/methods/ did not start correctly Synaptic package Manager E: Method has died unexpectedly! E: Sub-process returned an error code (100) E: Method /usr/lib/apt/methods/ did not start correctly E: Unable to lock the download directory Command: sudo apt-get upgrade Reading package lists... Done Building dependency tree Reading state information... Done The following packages will be upgraded: libfreetype6 libfreetype6-dev 2 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. Failed to exec method /usr/lib/apt/methods/ E: Method has died unexpectedly! E: Sub-process returned an error code (100) E: Method /usr/lib/apt/methods/ did not start correctly Can anyone one tell me how to resolve these issues ? I have no volatile packages or anything so i am even posting the preview of my sources.list file. # deb cdrom:[Ubuntu 10.10 _Maverick Meerkat_ - Release i386 (20101007)]/ maverick main restricted # See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to # newer versions of the distribution. deb http://in.archive.ubuntu.com/ubuntu/ oneiric main restricted ## Major bug fix updates produced after the final release of the ## distribution. deb http://in.archive.ubuntu.com/ubuntu/ oneiric-updates main restricted ## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu ## team. Also, please note that software in universe WILL NOT receive any ## review or updates from the Ubuntu security team. deb http://in.archive.ubuntu.com/ubuntu/ oneiric universe deb http://in.archive.ubuntu.com/ubuntu/ oneiric-updates universe ## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu ## team, and may not be under a free licence. Please satisfy yourself as to ## your rights to use the software. Also, please note that software in ## multiverse WILL NOT receive any review or updates from the Ubuntu ## security team. deb http://in.archive.ubuntu.com/ubuntu/ oneiric multiverse deb http://in.archive.ubuntu.com/ubuntu/ oneiric-updates multiverse ## Uncomment the following two lines to add software from the 'backports' ## repository. ## N.B. software from this repository may not have been tested as ## extensively as that contained in the main release, although it includes ## newer versions of some applications which may provide useful features. ## Also, please note that software in backports WILL NOT receive any review ## or updates from the Ubuntu security team. # deb http://in.archive.ubuntu.com/ubuntu/ maverick-backports main restricted universe multiverse # deb-src http://in.archive.ubuntu.com/ubuntu/ maverick-backports main restricted universe multiverse ## Uncomment the following two lines to add software from Canonical's ## 'partner' repository. ## This software is not part of Ubuntu, but is offered by Canonical and the ## respective vendors as a service to Ubuntu users. deb http://archive.canonical.com/ubuntu oneiric partner deb-src http://archive.canonical.com/ubuntu oneiric partner ## This software is not part of Ubuntu, but is offered by third-party ## developers who want to ship their latest software. deb http://extras.ubuntu.com/ubuntu oneiric main deb-src http://extras.ubuntu.com/ubuntu oneiric main deb http://in.archive.ubuntu.com/ubuntu/ oneiric-security main restricted deb http://in.archive.ubuntu.com/ubuntu/ oneiric-security universe deb http://in.archive.ubuntu.com/ubuntu/ oneiric-security multiverse # deb http://archive.canonical.com/ lucid partner Here is the preview of my sources.list file

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• Upgrade Ubuntu 11.10 to 12.10

  - by Daniel Minassian

  To whoever can help, I want to update the ubuntu on my laptop to 12.10 from the current version 11.10, when i click on the update manager i get a partial update gui, if i click cancel on that i get the gui for update which has three buttons check, install updates and upgrade. The upgrade button upgrades only to 12.04.1.LTS, when i press check it checks and gives me this error "W:Failed to fetch h t t p://lb.archive.ubuntu.com/ubuntu/dists/precise/main/i18n/Index No Hash entry in Release file /var/lib/apt/lists/partial/lb.archive.ubuntu.com_ubuntu_dists_precise_main_i18n_Index , W:Failed to fetch h t t p://lb.archive.ubuntu.com/ubuntu/dists/precise/multiverse/i18n/Index No Hash entry in Release file /var/lib/apt/lists/partial/lb.archive.ubuntu.com_ubuntu_dists_precise_multiverse_i18n_Index , W:Failed to fetch http://lb.archive.ubuntu.com/ubuntu/dists/precise/restricted/i18n/Index No Hash entry in Release file /var/lib/apt/lists/partial/lb.archive.ubuntu.com_ubuntu_dists_precise_restricted_i18n_Index , W:Failed to fetch http://lb.archive.ubuntu.com/ubuntu/dists/precise/universe/i18n/Index No Hash entry in Release file /var/lib/apt/lists/partial/lb.archive.ubuntu.com_ubuntu_dists_precise_universe_i18n_Index , E:Some index files failed to download. They have been ignored, or old ones used instead." Thank you for your time and help, Daniel Minassian

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• "Unable to connect" to getdeb.net, how do I fix it?

  - by Nirmik

  i want to know what this error means and how to fix it? The following is the output on the terminal- W: Failed to fetch http://archive.getdeb.net/ubuntu/dists/precise-getdeb/Release.gpg Unable to connect to archive.getdeb.net:http: W: Failed to fetch http://archive.getdeb.net/ubuntu/dists/precise-getdeb/apps/binary-i386/Packages Unable to connect to archive.getdeb.net:http: W: Failed to fetch http://archive.getdeb.net/ubuntu/dists/precise-getdeb/apps/i18n/Translation-en_IN Unable to connect to archive.getdeb.net:http: W: Failed to fetch http://archive.getdeb.net/ubuntu/dists/precise-getdeb/apps/i18n/Translation-en Unable to connect to archive.getdeb.net:http: E: Some index files failed to download. They have been ignored, or old ones used instead.

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• How can create the smallest possible mirror of the archive?

  - by Registered User

  I need to create an http url at my laptop to have a Ubuntu installation begin within my laptop on a Xen environment. This is how the final thing will look like. The host and client are both going to be my laptop, I Googled and came across apt-mirror and some other packages. I do not want to archive entire 15 GB Ubuntu repositories on my machine. It is not possible to use a CD,ISO,loop mounted disk (reason mentioned below). I have tried using netboot image on local machine which failed because if you are attempting to create a virtual machine on a hardware which does not support VT virt-manager installer necessarily needs a URL of this sort http://archive.ubuntu.com/ubuntu/dists/hardy/main/installer-i386/current/images/netboot/ Any other option to create guest OS is simply grayed out. The unfortunate part is my Ethernet connections do not work when I boot with Xen-4.0 and a pv-ops Dom0 kernel from Jeremy's tree. Which is where I have to do this work. So I have to create a URL structure which is similar to Ubuntu mirrors. So how can I do this in bare minimum so that at least the console boots and once the console comes I can do some work.

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• cpio VS tar and cp

  - by Tim

  I just learned that cpio has three modes: copy-out, copy-in and pass-through. I was wondering what are the advantages and disadvantages of cpio under copy-out and copy-in modes over tar. When is it better to use cpio and when to use tar? Similar question for cpio under pass-through mode versus cp. Thanks and regards!

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• Zip folder in C#

  - by Marko

  What is an example (simple code) of how to zip a folder in C#? Update: I do not see namespace ICSharpCode. I downloaded ICSharpCode.SharpZipLib.dll but I do not know where to copy that DLL file. What do I need to do to see this namespace? And do you have link for that MSDN example for compress folder, because I read all MSDN but I couldn't find anything. OK, but I need next information. Where should I copy ICSharpCode.SharpZipLib.dll to see that namespace in Visual Studio?

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• Decide which caching startegy to use ?

  - by hib

  Hi all, I want to cache my loaded data so that I can reduce my application start time . I know several strategies to store application data i.e. core data, nsuserdefaults , archiving . Now my scenario is that suppose that I have array of maximum 10 objects each object having 5 fields . So I can not decide which strategy to store this array an later retrieving the same . Thanks .

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• How to pack python files and its dependencies in a single executable file?

  - by Gatis

  I've got a piece of software which consists of several python sources and a couple of c++ libraries. I'd like to pack them in a executable single file, just like java does with .jar files. Is there a way to do that?

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• document directory for different iphone app targets

  - by David

  I have two targets for my app which both unarchive serialized objects, however the objects made by the two apps are not compatible. these objects seem to be saved to the same document directory so that one app will try to unarchive the other's objects. how do I get the apps to create separate sandboxes so they do not have access each others' saved objects? or do I need to just have each version create differently named files?

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• Limiting the list of archives in wordpress based on date

  - by Gaurav

  I am using wordpress and I am displaying my archives list in a sidebar using the function wp_get_archives('type=monthly'); I have posts from Feb 2005 to April 2010 but I want to display June 2009 onwards links. (i.e. june 2009, july 2009, ....april 2010). How do I prevent Feb 2005 - may 2005 from being displayed in the archives list. (Please don't suggest adding a limit i.e. wp_get_archives('type=daily&limit=15'); . That will not solve my problem)

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• Library order is important

  - by Darryl Gove

  I've written quite extensively about link ordering issues, but I've not discussed the interaction between archive libraries and shared libraries. So let's take a simple program that calls a maths library function: #include <math.h int main() { for (int i=0; i<10000000; i++) { sin(i); } } We compile and run it to get the following performance: bash-3.2$ cc -g -O fp.c -lm bash-3.2$ timex ./a.out real 6.06 user 6.04 sys 0.01 Now most people will have heard of the optimised maths library which is added by the flag -xlibmopt. This contains optimised versions of key mathematical functions, in this instance, using the library doubles performance: bash-3.2$ cc -g -O -xlibmopt fp.c -lm bash-3.2$ timex ./a.out real 2.70 user 2.69 sys 0.00 The optimised maths library is provided as an archive library (libmopt.a), and the driver adds it to the link line just before the maths library - this causes the linker to pick the definitions provided by the static library in preference to those provided by libm. We can see the processing by asking the compiler to print out the link line: bash-3.2$ cc -### -g -O -xlibmopt fp.c -lm /usr/ccs/bin/ld ... fp.o -lmopt -lm -o a.out... The flag to the linker is -lmopt, and this is placed before the -lm flag. So what happens when the -lm flag is in the wrong place on the command line: bash-3.2$ cc -g -O -xlibmopt -lm fp.c bash-3.2$ timex ./a.out real 6.02 user 6.01 sys 0.01 If the -lm flag is before the source file (or object file for that matter), we get the slower performance from the system maths library. Why's that? If we look at the link line we can see the following ordering: /usr/ccs/bin/ld ... -lmopt -lm fp.o -o a.out So the optimised maths library is still placed before the system maths library, but the object file is placed afterwards. This would be ok if the optimised maths library were a shared library, but it is not - instead it's an archive library, and archive library processing is different - as described in the linker and library guide: "The link-editor searches an archive only to resolve undefined or tentative external references that have previously been encountered." An archive library can only be used resolve symbols that are outstanding at that point in the link processing. When fp.o is placed before the libmopt.a archive library, then the linker has an unresolved symbol defined in fp.o, and it will search the archive library to resolve that symbol. If the archive library is placed before fp.o then there are no unresolved symbols at that point, and so the linker doesn't need to use the archive library. This is why libmopt needs to be placed after the object files on the link line. On the other hand if the linker has observed any shared libraries, then at any point these are checked for any unresolved symbols. The consequence of this is that once the linker "sees" libm it will resolve any symbols it can to that library, and it will not check the archive library to resolve them. This is why libmopt needs to be placed before libm on the link line. This leads to the following order for placing files on the link line: Object files Archive libraries Shared libraries If you use this order, then things will consistently get resolved to the archive libraries rather than to the shared libaries.

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• How put both sent messages and received messages in an archive folder in Mail.app?

  - by Paperflyer

  I have an archive folder that contains all messages I ever received on my mail account. The mail account is not a Gmail account. One thing I love about Gmail is that the threaded view not only shows messages I received but also messages I sent. The only piece missing in this puzzle is the possibility for Mail.app to store a copy of all sent messages in my archive folder or to otherwise combine these two folders. Is this possible?

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• Extract files in rar archive without having some previous files.

  - by Aria

  I have a big rar archive which is split into 700mb parts. I only have part 5 and 6 and there is a 40mb file in there that I wanna extract using Winrar. I know the whole file is stored in part 5 because when I open part 5, that file gets listed (and many other files). But I can't extract any of them, cause it asks for previous archive parts which I'm sure it really doesn't need. Is there a way to do that?

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• VMWare Lab Manager: What's the difference between Capture to Library and Archive to Library?

  - by mcohen75

  On a configuration in my workspace I have two options, Capture to Library and Archive to Library. What's the difference between the two? The Lab Manager User's Guide isn't very useful here: Archive a Workspace Configuration to the Library You can preserve the exact state of a configuration in the configuration library. Archived configurations are read-only, but you can clone, export, and delete them. Sounds like what Capture to Workspace does.

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• sudo apt-get update errors

  - by Adrian Begi

  Here is what I get on my terminal when running sudo apt-get update errors. I dont know if the issue is from my sources.list or my proxy setup(have not made any changes to proxies). Thank you for any help in advanced. Ign http://security.ubuntu.com oneiric-security Release.gpg Ign http://security.ubuntu.com oneiric-security Release Ign http://security.ubuntu.com oneiric-security/main Sources/DiffIndex Ign http://security.ubuntu.com oneiric-security/restricted Sources/DiffIndex Ign http://security.ubuntu.com oneiric-security/universe Sources/DiffIndex Ign http://security.ubuntu.com oneiric-security/multiverse Sources/DiffIndex Ign http://security.ubuntu.com oneiric-security/main amd64 Packages/DiffIndex Ign http://security.ubuntu.com oneiric-security/restricted amd64 Packages/DiffIndex Ign http://security.ubuntu.com oneiric-security/universe amd64 Packages/DiffIndex Ign http://security.ubuntu.com oneiric-security/multiverse amd64 Packages/DiffIndex Ign http://security.ubuntu.com oneiric-security/main i386 Packages/DiffIndex Ign http://security.ubuntu.com oneiric-security/restricted i386 Packages/DiffIndex Ign http://security.ubuntu.com oneiric-security/universe i386 Packages/DiffIndex Ign http://security.ubuntu.com oneiric-security/multiverse i386 Packages/DiffIndex Ign http://security.ubuntu.com oneiric-security/main TranslationIndex Ign http://security.ubuntu.com oneiric-security/multiverse TranslationIndex Ign http://security.ubuntu.com oneiric-security/restricted TranslationIndex Ign http://security.ubuntu.com oneiric-security/universe TranslationIndex Err http://security.ubuntu.com oneiric-security/main Sources 404 Not Found [IP: 91.189.91.15 80] Err http://security.ubuntu.com oneiric-security/restricted Sources 404 Not Found [IP: 91.189.91.15 80] Err http://security.ubuntu.com oneiric-security/universe Sources 404 Not Found [IP: 91.189.91.15 80] Err http://security.ubuntu.com oneiric-security/multiverse Sources 404 Not Found [IP: 91.189.91.15 80] Err http://security.ubuntu.com oneiric-security/main amd64 Packages 404 Not Found [IP: 91.189.91.15 80] Err http://security.ubuntu.com oneiric-security/restricted amd64 Packages 404 Not Found [IP: 91.189.91.15 80] Err http://security.ubuntu.com oneiric-security/universe amd64 Packages 404 Not Found [IP: 91.189.91.15 80] Err http://security.ubuntu.com oneiric-security/multiverse amd64 Packages 404 Not Found [IP: 91.189.91.15 80] Err http://security.ubuntu.com oneiric-security/main i386 Packages 404 Not Found [IP: 91.189.91.15 80] Err http://security.ubuntu.com oneiric-security/restricted i386 Packages 404 Not Found [IP: 91.189.91.15 80] Err http://security.ubuntu.com oneiric-security/universe i386 Packages 404 Not Found [IP: 91.189.91.15 80] Err http://security.ubuntu.com oneiric-security/multiverse i386 Packages 404 Not Found [IP: 91.189.91.15 80] Ign http://security.ubuntu.com oneiric-security/main Translation-en_US Ign http://security.ubuntu.com oneiric-security/main Translation-en Ign http://security.ubuntu.com oneiric-security/multiverse Translation-en_US Ign http://security.ubuntu.com oneiric-security/multiverse Translation-en Ign http://security.ubuntu.com oneiric-security/restricted Translation-en_US Ign http://security.ubuntu.com oneiric-security/restricted Translation-en Ign http://security.ubuntu.com oneiric-security/universe Translation-en_US Ign http://security.ubuntu.com oneiric-security/universe Translation-en W: Failed to fetch http://security.ubuntu.com/ubuntu/dists/oneiric-security/main/source/Sources 404 Not Found [IP: 91.189.91.15 80] W: Failed to fetch http://security.ubuntu.com/ubuntu/dists/oneiric-security/restricted/source/Sources 404 Not Found [IP: 91.189.91.15 80] W: Failed to fetch http://security.ubuntu.com/ubuntu/dists/oneiric-security/universe/source/Sources 404 Not Found [IP: 91.189.91.15 80] W: Failed to fetch http://security.ubuntu.com/ubuntu/dists/oneiric-security/multiverse/source/Sources 404 Not Found [IP: 91.189.91.15 80] W: Failed to fetch http://security.ubuntu.com/ubuntu/dists/oneiric-security/main/binary-amd64/Packages 404 Not Found [IP: 91.189.91.15 80] W: Failed to fetch http://security.ubuntu.com/ubuntu/dists/oneiric-security/restricted/binary-amd64/Packages 404 Not Found [IP: 91.189.91.15 80] W: Failed to fetch http://security.ubuntu.com/ubuntu/dists/oneiric-security/universe/binary-amd64/Packages 404 Not Found [IP: 91.189.91.15 80] W: Failed to fetch http://security.ubuntu.com/ubuntu/dists/oneiric-security/multiverse/binary-amd64/Packages 404 Not Found [IP: 91.189.91.15 80] W: Failed to fetch http://security.ubuntu.com/ubuntu/dists/oneiric-security/main/binary-i386/Packages 404 Not Found [IP: 91.189.91.15 80] W: Failed to fetch http://security.ubuntu.com/ubuntu/dists/oneiric-security/restricted/binary-i386/Packages 404 Not Found [IP: 91.189.91.15 80] W: Failed to fetch http://security.ubuntu.com/ubuntu/dists/oneiric-security/universe/binary-i386/Packages 404 Not Found [IP: 91.189.91.15 80] W: Failed to fetch http://security.ubuntu.com/ubuntu/dists/oneiric-security/multiverse/binary-i386/Packages 404 Not Found [IP: 91.189.91.15 80] E: Some index files failed to download. They have been ignored, or old ones used instead. HERE IS MY SOURCES.LIST # # deb cdrom:[Ubuntu-Server 11.10 _Oneiric Ocelot_ - Release amd64 (20111011)]/ dists/oneiric/main/binary-i386/ # deb cdrom:[Ubuntu-Server 11.10 _Oneiric Ocelot_ - Release amd64 (20111011)]/ dists/oneiric/restricted/binary-i386/ # deb cdrom:[Ubuntu-Server 11.10 _Oneiric Ocelot_ - Release amd64 (20111011)]/ oneiric main restricted #deb cdrom:[Ubuntu-Server 11.10 _Oneiric Ocelot_ - Release amd64 (20111011)]/ dists/oneiric/main/binary-i386/ #deb cdrom:[Ubuntu-Server 11.10 _Oneiric Ocelot_ - Release amd64 (20111011)]/ dists/oneiric/restricted/binary-i386/ #deb cdrom:[Ubuntu-Server 11.10 _Oneiric Ocelot_ - Release amd64 (20111011)]/ oneiric main restricted # See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to # newer versions of the distribution. deb http://us.archive.ubuntu.com/ubuntu/ oneiric main restricted deb-src http://us.archive.ubuntu.com/ubuntu/ oneiric main restricted ## Major bug fix updates produced after the final release of the ## distribution. deb http://us.archive.ubuntu.com/ubuntu/ oneiric-updates main restricted deb-src http://us.archive.ubuntu.com/ubuntu/ oneiric-updates main restricted ## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu ## team. Also, please note that software in universe WILL NOT receive any ## review or updates from the Ubuntu security team. deb http://us.archive.ubuntu.com/ubuntu/ oneiric universe deb-src http://us.archive.ubuntu.com/ubuntu/ oneiric universe deb http://us.archive.ubuntu.com/ubuntu/ oneiric-updates universe deb-src http://us.archive.ubuntu.com/ubuntu/ oneiric-updates universe ## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu ## team, and may not be under a free licence. Please satisfy yourself as to ## your rights to use the software. Also, please note that software in ## multiverse WILL NOT receive any review or updates from the Ubuntu ## security team. deb http://us.archive.ubuntu.com/ubuntu/ oneiric multiverse deb-src http://us.archive.ubuntu.com/ubuntu/ oneiric multiverse deb http://us.archive.ubuntu.com/ubuntu/ oneiric-updates multiverse deb-src http://us.archive.ubuntu.com/ubuntu/ oneiric-updates multiverse ## N.B. software from this repository may not have been tested as ## extensively as that contained in the main release, although it includes ## newer versions of some applications which may provide useful features. ## Also, please note that software in backports WILL NOT receive any review ## or updates from the Ubuntu security team. deb http://us.archive.ubuntu.com/ubuntu/ oneiric-backports main restricted universe multiverse deb-src http://us.archive.ubuntu.com/ubuntu/ oneiric-backports main restricted universe multiverse deb http://security.ubuntu.com/ubuntu oneiric-security main restricted deb-src http://security.ubuntu.com/ubuntu oneiric-security main restricted deb http://security.ubuntu.com/ubuntu oneiric-security universe deb-src http://security.ubuntu.com/ubuntu oneiric-security universe deb http://security.ubuntu.com/ubuntu oneiric-security multiverse deb-src http://security.ubuntu.com/ubuntu oneiric-security multiverse ## Uncomment the following two lines to add software from Canonical's ## 'partner' repository. ## This software is not part of Ubuntu, but is offered by Canonical and the ## respective vendors as a service to Ubuntu users. # deb http://archive.canonical.com/ubuntu oneiric partner # deb-src http://archive.canonical.com/ubuntu oneiric partner ## Uncomment the following two lines to add software from Ubuntu's ## 'extras' repository. ## This software is not part of Ubuntu, but is offered by third-party ## developers who want to ship their latest software. # deb http://extras.ubuntu.com/ubuntu oneiric main # deb-src http://extras.ubuntu.com/ubuntu oneiric main

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• Pinning based on origin of a reprepro repository.

  - by Shtééf

  I'm on Ubuntu 10.04, and trying to set up a repository using reprepro. I'd also like the pin everything in that repository to be preferred over anything else, even if packages are older versions. (It will only contain a select set of packages.) However, I cannot seem to get the pinning to work, and believe it has something to do with the repository side of things, rather than the apt configuration on the client. I've taken the following steps to set up my repository Installed a web server (my personal choice here is Cherokee), Created the directory /var/www/apt/, Created the file conf/distributions, like so: Origin: Shteef Label: Shteef Suite: lucid Version: 10.04 Codename: lucid Architectures: i386 amd64 source Components: main Description: My personal repository Ran reprepro export from the /var/www/apt/ directory. Now on any other machine, I can add this (empty) repository over HTTP to my /etc/apt/sources.list, and run apt-get update without any errors: Ign http://archive.lan lucid Release.gpg Ign http://archive.lan/apt/ lucid/main Translation-en_US Get:1 http://archive.lan lucid Release [2,244B] Ign http://archive.lan lucid/main Packages Ign http://archive.lan lucid/main Sources Ign http://archive.lan lucid/main Packages Ign http://archive.lan lucid/main Sources Hit http://archive.lan lucid/main Packages Hit http://archive.lan lucid/main Sources In my case, now I want to use an old version of Asterisk, namely Asterisk 1.4. I rebuilt the asterisk-1:1.4.21.2~dfsg-3ubuntu2.1 package from Ubuntu 9.04 (with some small changes to fix dependencies) and uploaded it to my repository. At this point I can see the new package in aptitude, but it naturally prefers the newer Asterisk 1.6 currently in the Ubuntu 10.04 repositories. To try and fix that, I have created /etc/apt/preferences.d/personal like so: Package: * Pin: release o=Shteef Pin-Priority: 1000 But when I try to install the asterisk package, it will still prefer the 1.6 version over my own 1.4 version. This is what apt-cache policy asterisk shows: asterisk: Installed: (none) Candidate: 1:1.6.2.5-0ubuntu1 Version table: 1:1.6.2.5-0ubuntu1 0 500 http://nl.archive.ubuntu.com/ubuntu/ lucid/universe Packages 1:1.4.21.2~dfsg-3ubuntu2.1shteef1 0 500 http://archive.lan/apt/ lucid/main Packages Clearly, it is not picking up my pin. In fact, when I run just apt-cache policy, I get the following: Package files: 100 /var/lib/dpkg/status release a=now 500 http://archive.lan/apt/ lucid/main Packages origin archive.lan 500 http://security.ubuntu.com/ubuntu/ lucid-security/multiverse Packages release v=10.04,o=Ubuntu,a=lucid-security,n=lucid,l=Ubuntu,c=multiverse origin security.ubuntu.com [...] Unlike Ubuntu's repository, apt doesn't seem to pick up a release-line at all for my own repository. I'm suspecting this is the cause why I can't pin on release o=Shteef in my preferences file. But I can't find any noticable difference between my repository's Release files and Ubuntu's that would cause this. Is there a step I've missed or mistake I've made in setting up my repository?

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• What is the best way to archive data in a relational database?

  - by GenericTypeTea

  I have a bit of an issue with a particular aspect of a program I'm working on. I need the ability to archive (fix) a table so that a change anywhere in the system will not affect the results it returns. This is the basic structure of what I need to fix: Recipe --> Recipe (as sub recipe) Recipe --> Ingredients So, if I fix a Recipe, I need to ensure all the sub recipes (including all the sub recipes sub recipes and so forth) are fixed and all its ingredients are fixed. The problem is that the sub recipe and ingredients still need to be modifiable as they are used by other recipes that are not fixed. I came up with a solution whereby I serialize (with protobuf-net) a master object that deals with the recipe and all the sub recipes and ingredients and save the archive data to a table like follows: Archive{ ReferenceId, (i.e. RecipeId) ReferenceTypeId, (i.e. Recipe) ArchiveData varbinary(max) } Now, this works great and is almost perfect... however I totally forgot (I'd love to blame the agile development mentally, however this was just short sighted) that this information needs to be reported on. As far as I'm aware I can't think how I could inflate the serialized data back into my Recipe Object and use it in a Report. I'm using the standard SQL 2005 report services at the moment. Alternatively, I guess I could do the following: Duplicate every table and tag the word "Archive" on the end of the table name. This would then give me an area of specific archive data... but ignoring my simplified example, there'd actually be about 15 tables duplicated. Add a nullable, non-foreign key property called "CopiedFromId" to every table that contains fixed data and duplicate every record that the recipe (and all it's sub recipes and all their sub recipes) touches. Create some sort of denormalised structure that could be restored from at a later date to the original, unfixed recipe. Although I think this would be like option 1 and involve a lot of extra tables. Anyway, I'm at a total loss and do not like any of the ideas particularly. Can anyone please advise the best course of action? EDIT: Or 4) Create tables specific to what the report requires and populate them with the data when the user clicks the report button? This would cause about 4 extra tables for the report in question.

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