Ubuntu :: How To Check Integrity Of Install CD
Nov 23, 2010
Ubuntu 10.04 32 bit. I am familiar with the option on the alternate CDs to check CD integrity. Is there such a thing for the normal desktop live/install CD? I know the download image is OK. I have created several virtual machines from it. I believe the CD is OK - I have installed 2 physical machines from it.
I am now installing on my old Dell Poweredge 400 SC. When I first boot from the CD I get the message "The installer encountered an unrecoverable error..." then it brings up the Live CD OS. From there I can manually run install. The first time it got about half way through copying files to the hard drive and died. It indicated an I/O error. Could be dirt in the DVD drive - it is older than dirt. Or it could be the CD. Dirt I can clean with some compressed air. How do I verify the CD? I am downloading the alternate CD now as I try a second run at installing.
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Aug 12, 2011
I want to get a program to check (a) hard disk and (b) file integrity. I have had a file - ODS spreadsheet accessed using LibreOffice - that appears corrupt. I have drilled down and down and eventually identified a corrupt component image inserted in a sheet.
The error that is thrown by LO is a "Error saving
the document FILE: Write Error. The file could not be written."
error. The thread can be read here... http://thread.gmane.org/gmane.comp.d...fice.user/9266.
What has confused me is that my machine can not save the file once a sheet is deleted. It is specific to a particular file. The file is stored on n ext4 disk mounted by fstab. I also share the file using samba. Regardless of how I access this file I get the error. If however, I access the exact same file using OpenOffice 3.1.0 OOO310m11 (Build: 9399) from an old Windows Vista Tablet and I can manipulate the file successfully - no error is encountered. I can also access the same file from another Ubuntu machine via NFS and Samba and both work. I am confused. I am beginning to think my disk is damaged or something. How do you check hard disks to verify that the disk surface is intact, and that the expected file sum value matches the value stored in the Linux equivalent to the FAT table.
I am using Ubuntu 10.04 LTS and all hard disks are formated with ext4. All formatting and management of the disks have been done using the 'Disk Utility' in the System > Administration' menu. If I look in gparted it will not check the disk the file is on stating "eslabel: no such file or directory... couldn't find valid filesystem superblock...". The filesystem mounts OK however without any errors. Another harddisk on the same system currently being used for backup does not even have the menu option for checking the disk highlighted.
What is the best way of verifying the integrity of the filesystem, actual files and the underlying physical media? I should point out it is only this single file that currently displays any issues. I either have a damaged disk, corrupt file or LibreOffice has a very peculiar bug that only appears in a unique combination of events just on my machine. As part of my investigations I have been updating ubuntu, reinstalled LibreOffice from their website and checked all dependencies have been met.
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Jan 24, 2011
is there a way to "repair" or check the integrity of ogg files? They all work on my desktop but some seem broken on my mobile (Nexus One). I have the feeling my converter may have corrupted some files or the conversion was corrupted by the original file.
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Mar 25, 2011
create one tar.gz file that contains my /home, /etc, /root directory.
a) The process ended with a 88GB file size (which is ok) but with the following message.Code: tar: Exiting with failure status due to previous errors.I have searched a little but I could not find what went wrong.
b) What are the limitations of tar and gz for backups. Of course I fully understand that they can not be used for differential backups (if it is called like that)
c) Let's say that my backup will be a file of 100GB and I want to see the contents of the .tar.gz. In kde there is a program called ark. Can ark handle so big files? Does it use my hard disk (eg. /tmp) to uncompress the file so to show me its contents? It might be the case that might be the compressed file is much bigger than the left space on the hard disk?
d) How can I do an integrity check when my tar.gz file is created?
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Feb 25, 2010
I have been using the new ocr app 'cuneiform' that has appeared in the Lucid repo.It is command line and works very well.However, the rest of the household would like to use it and desire a gui front-end.Mepis has this and it is called YAGF. Works well.We are told to install only from trusted sources.how can I check the integrity of this .deb and freedom from malware before installing it?
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Jun 30, 2010
I've tried to install Linux Ubuntu 9 on an HPmini 110, since this type of netbook doesnt have any optical unit (CD/DVD Reader) I decided to install Ubuntu from an USB flash drive, I created the booteable USB drive with Lili USB Creator, then when I reboot the HPMini and select the "check integrity" option before install, it's always the same error, when the check is finished it tells me "Encountered 1 error in 1 file" (With no description of this error whatsoever) even when Lili USB Creator previously did a succesfull integrity check of the same ISO I'm trying to install.
I'have installed this same version of linux before (on the same machine), from the same ISO image without this error, I also have tried with 3 different flash drives and lately even tried downloading again the ISO image of Ubuntu 10, I dont think is my hardware either since Ive tried to install this same image in 2 different laptops 1HPmini and 1 HPCompaq CQ60 with the same results at the integrity test.
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Dec 6, 2010
If you do, after the completing the test - it will eject the CD.
and how are you going to reinsert the CD to complete your install? you're remote remember ??
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Feb 28, 2010
Is there any software to store recovery records that can be used for recovery from data corruption, like RAR does? I periodically rsync from a primary backup location, that I assume corruption-free, to a secondary one, that I consider corruptible - so I'd like to store in the destination some recovery data.
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Dec 16, 2010
I am experiencing some strange behaviour with sound, and I have been messing around with installing some ALSA drivers. I suspect that I might have corrupted some part of the installed Ubuntu packages. Is there a way to check all the packages on the system for integrity using apt-get or similar?
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May 28, 2011
I am not able to find any information to verify a downloaded .iso file for security and integrity at [URL]../download/ubuntu/download .Are they supplied elsewhere?
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Feb 24, 2010
recommend any utilities that would check the hard drive and its contents (if they are still good) following a power outage?
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Aug 18, 2010
Is there a way to test the integrity of USB sticks?
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Nov 17, 2010
I'm currently backupping our home data (pictures, videos, our CDs ripped to FLAC which I spent a lot of time to tag accurately ), totalling almost 300 Gb, on 2 external USB drives, one of which is meant to stay at a friend's. I left the factory msdos filesystem as it was, thinking it could be useful to be able to connect the drives to a windows machine with no problems. It's certainly useful to have «normal» data that I can take with me e.g. when visiting my family.
I'm simply using rsync manually, checking for suspicious changed or deleted file before commiting the change. I do that every 2 weeks or so.
Now I want to add a file integrity management to my backupping scheme: I want to be able to check that new data I'll be committing has not been tampered with (integrity check before updating tags on my main drive), and I want to be able to check that backupped data is still sane on my USB drives, especially if I need to recover from data corruption on my main drive.
Since I'm essentially mirroring the data, I thought run of the mill integrity software would let me just rsync the integrity database, and I'm done.
But after browsing through the docs of tripware, afick and the like, I fear they work only with absolute paths, so the database for my main drive wouldn't work for my USB drive, that's mounted elsewhere when I plug it in, obviously.
So, I feel I'm missing something. It looks to me I'm trying to solve a very common problem, how do people do it?
Did I miss a file integrity software that works with backups?
Is there a trick like using a symbolic link pointing to whatever file hierarchy I want to check, and have tripware/afick/... monitor that link?
Should I run a more elaborate backupping system than plain rsync? Which one? (Storebackup for instance looks promising since it involves md5 sums, but it's targetting a completely different problem, and I'm not sure I can use it at all for what I need.)
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Feb 9, 2011
I've been using Brasero to burn iso images on DVD-Rs, and although the burns are successful (I know by testing them), Brasero doesn't seem to perform its file/image integrity check from Tools>Check Integrity. The Brasero plugin "File checksum" or "Image checksum" is checked (can't have both checked), and when I perform a manual check with an md5 file and its burned DVD,it"always" gives me, immediately, a success message: "the file integrity was performed successfully," even when I insert a different image with the previous md5 file! So, immediate response (doesn't seem to be checking anything, I know that a 4Gb DVD md5 checking should take some time), and success whatever the DVD image used with one md5 file. Something must be wrong or the feature is broken.
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Feb 9, 2010
How to do an easy file integrity checking on fedora 11 ? just to make sure that the necessary core os files are not corrupted using rpm and yum.
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Mar 15, 2011
System is Fedora 13 64 bit. Today, an update dropped for all of the clamav packages. After they finished installing, I ran freshclam, and this is just part of the output of tail /var/log/messages:
[Code]...
I checked my DNS settings, my DNS server, and everything was good to go. I even removed all files from /var/lib/clamav, including the mirrors.dat file, and still no go, got the same errors. I downgraded all the packages, and still got the same thing... Is anyone else having this problem?
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Jan 6, 2010
I've been looking for a good data integrity test tool for linux, but I'm having trouble finding one. Basically I'm looking for an application that will generate a heavy I/O load to a raw device and then perform some kind of data verification on the device. I my case the raw device will be md raid5 array.
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Jul 18, 2009
Is there a way, a command, or a program that can be used to test the integrity and/or to check the data on an external hard drive?
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Apr 29, 2010
Has any one ported Green Hill Software Integrity OS on any ARM porcessor. How does the boot log looks like. What should be the rootfs used.Do we get a prompt similar to Linux. I have seen : [URL]..
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Jul 28, 2009
I have a seagate SATA hard drive that was running a mythtv distro. It had 3 partitions, EXT3, swap, and XFS. I started having I/O errors on boot and saw error messages on both the EXT3 and the XFS partitions. I also heard some clunking sounds on the drive when it was reading, so I thought hell, the drive is dead.
I have since replaced the drive and everything is back up and running on the replacement drive. I thought hell, the seagate drive is toast, but I just want to verify it with some sort of tool. I have the hard drive in a Vantec NexStar external hard drive case (SATA->USB) and found there was a tool called badblocks. Ran badblocks on it, which ran for 24ish hours and found no bad blocks. I also didn't notice any clunking sounds while it was running.
I ran
Code:
badblocks -n -v /dev/sdb
Is badblocks a proper test to run on external hard drives or was I just wasting my time? Is there any way that I can really test it without removing it and connecting it with SATA to the motherboard?
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Aug 16, 2011
when i login, Ubuntu asks to install 3D Drivers for my grapics card. Can i make a script in openSUSE to do this as well? Or even better, check for drivers on startup and then install the drivers for the graphics card on boot.
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Feb 3, 2010
I am new to Debian but not Linux-based systems. I have been experimenting a lot with Debian Lenny/Squeeze. I am growing more comfortable each day with the Debian design. Yet there remain many unexplored areas. I am creating a migration check list. Things to check, prepare, or reconfigure when moving from one Linux-based system to Debian.
I have a good computer background and my current check list probably is fairly good. Yet I would appreciate input and opinions from experienced Debian users of things to watch in such a migration. Login defs, passwd/group files, different directory locations, keymaps, services and daemons, etc. I am not too concerned with the desktop as I plan to stick with KDE 3.5 for a while and I can basically move those settings across.
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Aug 19, 2010
I want to put check menu & check list in utility dialog.i dont know how i do this
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Sep 17, 2010
How do i install spell check and the thesaurus?-really annoying not having these by default...
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Mar 20, 2010
I have just got 1st opensuse running how do I check my ip address
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Mar 13, 2010
Recently I installed Arch on my computer. There are now three systems on it:XP,Ubuntu,Arch.I choose to share the same disk space for swap and /home in the two systems.The installation went well except some problems with Grub, and I managed to made it work. These days,when I start my computer and choose Ubuntu,there always displays a short message about /home disk checking or some problems about fstab. I don't know why. When I login to the system, it works well all the time.
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Oct 2, 2009
I found my fedora 9 GNOME gui is very very slow. Browser, editor everything ... when I type in the editor, the display is even slower than I type! I suspect maybe the graphic driver is not installed properly. Could someone point me where to star How do I check the graphic driver? If it needs update how do I do it?
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Apr 17, 2010
After a recent update, when ever I attempt to open a ".ogv" extension from within Dolphin File Mananger in KDE4.4.2, I get a window that pops up every time for Checking For additional Software to install. It does this in spite of the fact I already have several players and the default set to SMPlayer to play the files. How do I turn this behavior off? It's really annoying because you either have to wait for it to finish checking (and finding nothing BTW) or Cancel it in order to play the file. This just started recently. I don't see anything obvious in Dolphin configuration, but I'm not even sure it's related to Dolphin at all.
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Apr 2, 2010
I need to check the md5 sum of the iso before burning as it through error on cd
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Jan 2, 2011
how could I check which is the current codepage on my openSuse (11.3)?
I tried with 'locale'
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