Ubuntu :: Wrong MD5SUM On CDs Burnt From ISOs?
Jan 13, 2010
I am having a problem checking the MD5SUM of some CDs burnt from ISOs, and I'm not sure whether the problem is the burning or the checking. I get the same problems on several PCs, and it seems to be dependent on the ISO. I have for a couple of years used a script someone gave me to verify CDs against ISOs when I want to check the disc and it has always worked in the past. The core line in the script is:
Code:
devmd5=`readom dev=$cddev sectors=0-$count f=- | md5sum | awk '{print $1}'
count is the size of the ORIGINAL ISO as calculated by isosize
[code]....
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May 22, 2011
Code:
Building flash-player-plugin
flash-player-plugin:
flash-player-plugin not found in /var/cache/sbopkg.
--2011-05-22 10:36:40-- http://fpdownload.macromedia.com/get/flashplayer/current/install_flash_player_10_linux.tar.gz
Resolving fpdownload.macromedia.com (fpdownload.macromedia.com)... 95.100.2.70
[Code]...
I tried three times, by removing /var/cache/sbopkg/install_flash_player_10_linux.tar.gz then start sbopkg again.
EDIT: I went to slackbuilds.org, downloaded flashplayer from there, and checked the md5sum. Still the same of course.
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Feb 16, 2011
Used to run Gentoo, years ago, getting back on the linux train. Anyways, got a new media pc and am having some troubles getting it to function. I am using ImageWriter, an OCZ Rally 4gb flash drive and have tried both HTTP and BitTorrent downloaded copies of 11.3 with the same md5sum check wrong error. What am I doing wrong? Is it because it thinks it is a CD or am I getting bad copies of the ISO? I am so out of practice I can't remember anything about installation anymore and am at a loss.
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Aug 30, 2010
I have burnt a data DVD (containing mp3 files) from k3b with the default settings (filesystem: Linux/Unix+Windows). No Windows machine, and no DVD players recognize it. My linux machine can read it back, and a Mac notebook could also read it. What can be the problem? Does anybody have an idea? I tried disabling the RockRidge extension - the same result. CDs (burnt with the same settings) work fine.
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Jul 25, 2010
so I finally got to burn a Mandriva ISO DVD..
i tried autorun a splash window appears with some options and I click the one that says Install Mandriva Linux...and it asked me to restart the computer, so I did a restart, Windows logged on, I waited for any installation splash screen to come up and none did....how do I install Mandriva from ISO...and if any, is there any other way(s) to install Mandriva
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Oct 4, 2009
Before creating a DVD of an old movie, I tried to free up some hard disk space by burning a batch of old cartoons (Betty Boop, from the '30s.) to a data DVD, and deleting the directory after making sure the burn was good. The burn went fine, and the disc ejected correctly. (This is an important point!) I immediately re-inserted it so that I could check the contents, as I've done many times before, but it never showed up on my desktop.
(F10 with Gnome) I opened Nautilus and found two copies of the DVD listed, and both context menus listed both Mount and Eject, as though Gnome wasn't sure if it was or wasn't mounted. Checking, neither shows up in /media, /mnt or /etc/mtab. At this point, I can no longer mount it or any other disc. I've tried logging out and logging in, with no change. I'd consider a reboot, but my uptime has quite literally reached Biblical proportions and I hate to waste it if I don't have to. How to tell Fedora to let go of a DVD that isn't in the drive any longer?
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Jun 12, 2010
I decided to install Fedora today ( from Debian ) so I downloaded the 64 bit variation and then burnt it and booted from it. My partition table before looked like this ( the XXXs of values I do not know ) :
Code:
Number Start End Size Type File system Flags
1 1049kB 10.5GB 10.5GB primary fat32 diag
2 10.5GB 110GB 100GB primary ntfs
3 110GB 111GB 98.7MB primary ext2 boot
4 111GB 320GB 209GB extended
5 111GB 315GB XXXXXX logical ext3 XXXX
6 315GB 320GB 5124MB logical linux-swap(v1)
I wanted to seperate my /home and / (root) partitions in my new system so that in the future, distro-hopping would be easier. I deleted everything in my fifth partition except for my home folder, from which I moved my home folder ( /home/whales ) to the top layer of the partition ( now /whales ).
I then did a yum install gparted so I could shrink partition 5 (now going to be /home) and add another 20gb one for / (root). Unfortunately Gparted spat out an error about the kernel not reading the partition table until reboot ( but first it succeeded in shrinking the FS to 286GB ). I panicked and tried to format p5 to ext3 ( it was ext3 ) but then realised this was dumb before it could 'create the ext3 filesystem' and I cancelled the operation.
I then rebooted, realising I should have done what the error said to in the first place.Nope. The partition was 'empty' apart from lost+found ( which is empty ). Nuts I thought to myself. The filesystem must have been overwritten . I tried a 'rescue' on parted on the command line, but that did not work. So I then removed the parition reference and then tried a rescue, but nothing happened. No output other than progress, and now I am stuck with this layout:
[Code]...
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Jul 23, 2011
I need to know where to look in Ubuntu to find the iso burning program. I normaly run slack and am not familiar with debian based systems, I have limited internet time
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Jul 22, 2011
I have downloaded the opensuse 11.4 64 bit iso both as a direct download and as a torrent, and the md5sums for both iso images are fine.
I tried burning both, and for both of them they fail the checksum installation media test for the actual dvd.
(dvd title openSUSE-DVD-x86_640024)
I burnt them on a 32 bit Pentium 4 machine running suse 11.3, and am trying to install on an Athlon 64 3000+.
This may well be a stupid question, but do you have to burn a 64 bit iso image on a 64 bit machine, or should I be able to burn it on a P4 ok?
I should add that I had tried installing one the dvd's first, and got a lot of failed packages and ended up aborting the install.
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Nov 24, 2009
I really need to burn my 64 kbps uncompressed A-Law PCM file to Audio CD uncompressed as is and make this 8 hour file appear on CD Players. What app does it for me? It must fit on CD! Goldwave makes a-law / u-law wav files BTW. I can do this with linux or windows with any application. tell me how or where to download. I have the wav files already.
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Feb 12, 2010
Does anybody know where UNetBootin stores the temporary .isos etc.. before it extracts and puts it on the USB stick. I notice my hard drive space is going down slowly and that's the only thing I've been downloading with for the past few days.
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Oct 30, 2010
I have some ISO, UDF, and IMG files on my Windows partition that I would like to mount in Fedora so that I can run it as if it were a CD. In Windows, I used Magic Disk to do this. I searched the forums and found posts that told how to do it from the CLI, but I would like to do it from the GUI.
I am running Fedora 13 with Gnome.
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Oct 26, 2010
Does anyone else have unusual trouble burning ISOs to CD-RWs? When I want to make a new liveCD of a distro--or, really, any data that I might not want to keep in its current form--I like to burn to CD-RWs because I can erase and reuse them. Frugality. But I have a very high frequency of errors when I try to burn a distro to a CD-RW. Sometimes it ruins the CD-RW: after the error disrupts the burning, K3B starts telling me the disc is now a CD-ROM and can't be erased. I just lost three CD-RWs to that--damn it. And they weren'd old, failing CD-RWs: two had slight use, and one was brand new. Should I not be burning distro ISOs to CD-RWs?
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May 28, 2010
I'm trying to make a sort of "toolkit" flash drive using grub2 but I am running into some problems. For some reason, every entry below gives me the error "you must load the kernel first" when I try to boot it. I have checked in the grub command line and it appears that grub sees my flash drive as the first drive when booting. This is what my grub.cfg looks like.
Code:
#Clonezilla v1.2.5-17
menuentry "Clonezilla 32"
{
set isofile="/boot/isos/clonezilla32.iso"
loopback loop $isofile
[Code]...
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Oct 29, 2009
I replaced the hds in my computer a while back. They were linked up as one logical volume, but before I pulled them out I saved isos of each disk.
However, now I need to find some information on them, but I can't figure out how to mount the isos. When I try mount -o loop on either iso, it tells me it can't recognize the file system type.
mount:
So I'm guessing that somehow I have to tell mount that they are two parts of one logical volume, but I'm not sure how to do that.
One way or another, is it going to be possible for me to recover the info from these isos?
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Jun 18, 2010
"In this tutorial you will prepare a USB flash drive to make it bootable. After you booted it it shows you a menu where you can choose which live system you want to boot. So you might be interested in this tutorial if: You want to have multiple live systems on one USB flash drive In the future you want to create a new bootable live system just by copying the ISO file onto the drive and edit the grub.cfg You don't want to or can't use Distro specific LiveUSB creator tools You prefer a cleaner solution than the most LiveUSB creator tools which create several folders and files at the device root You are feeling bored and want to see cool features of Grub2 If you have a Grub2 version with Lua support you even don't need to manually edit the grub.cfg when you add new or remove live systems." Remainder of information is found here: [URL] This was found in a closed Karmic Development forum - can this be validated and updated if needed for Lucid?
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Feb 21, 2010
Is it possible to put the ISO images for Debian on your system and point the APT config at them with some sort of driver to read them like disks? That would sure save a lot of disk swapping.
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Apr 7, 2010
I have the 5 Debian 5.02 DVD/ISOs, and would like to set up a local server from which to perform installations using a PXE bootloader and the local LAN. Any pointers to how I might accomplish this? All of the online resources I've found for network-based installs expect to do all downloading from a remote mirror, and I would prefer to limit my network traffic to the local LAN. Also, I want to install to multiple new hosts, and would like to avoid doing a lot of babysitting and swapping DVDs in and out of the drives (and some hosts are without DVD readers).
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Aug 14, 2010
How many isos out of 7 shall i download to have a functional environment?
[url]
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Jun 30, 2011
I think opensuse should provide regenerated ISO files to public after several package updated. I think this may help reduce duplicate bug reports and reduce net traffics. I think this can greatly increase the user experience of opensuse.
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Aug 13, 2010
Is there a command to use to check md5 sum of a downloaded iso the md5 txt is in the iso
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Oct 15, 2010
Where can I find the md5sum checksum for Ubuntu 10.10? They seem to keep it hidden.
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Dec 26, 2010
I checked the md5sum of the iso using winMd5Sum utility, it is OK.
To check the CD, right clicked the md5sum file in it, send to winmd5sum, and then copied the corresponding hash from the ubuntuhashes page into the bottom text box, and compared. The message box says md5 sums are different. Now the question is, have I done it correctly, I mean, is this the way to check a burned CD, OR, is there another way to check md5sum of a burned CD?
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Aug 14, 2011
I am attempting to install Ubuntu Server 11.04 on a fairly old system. I downloaded the 32bit installer and burned it to a disk but got an error when it tried to install.
I checked the ISO md5sum, for all 4 versions(Server/Desktop 32/64 bit), and all 4 were wrong.
It is my understanding that the md5sum was corrupted during the download process, so is there a way that I can fix these without having to redownload them and crossing my fingers?
In my digging around I think I read about using a bitTorrent client to repair the iso but that would only be if you torrented the iso in the first place? I used the direct DL from the Ubuntu site.
I am using 64bit W7 and winMD5Sum.
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Feb 17, 2010
Debian 504 64bit netinst
I have the above iso.img download. But I can't find its md5sum. I have been searching around on debian.org website and have no idea where it is kept.
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Oct 29, 2010
I'm looking for a fast way to verify a copy of a folder with 150Gigs of data, in 33 files. Some of the files are a few kb, while a few are 20-30Gigs. I've done a file count, which is quick, but doesn't verify that all the files are intact. I tried running md5sum on them, which works, but will probably take as long as copying the files in the first place. Diff works too, but is slow too.
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May 16, 2011
I downloaded the Xubuntu 10.04.2 Alternate Install CD ISO file from http://mirror.anl.gov/pub/ubuntu-iso...10.04/release/
When I checked the md5sum of the downloaded file, however, there was a mismatch.
The md5sum given at both http://mirror.anl.gov/pub/ubuntu-iso...elease/MD5SUMS as well as https:[url].... is 209cfc88be17ededb373b601e8defdee *xubuntu-10.04.2-alternate-i386.iso but running the command,
Code:
md5sum xubuntu-10.04.2-alternate-i386.iso generated the following, obviously different checksum for me:
098674ad5a59f0115030c5c0c3973899 xubuntu-10.04.2-alternate-i386.iso
(It also took unusually long to generate the checksum- around thirty minutes.)
Is it possible that the file was corrupted or tampered with on the server?
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May 26, 2010
I have Fedora-13-i386-DVD.torrent download on;
Fedora Project Bittorrent Tracker [URL]
Finally the package folder downloaded;
$ cd Fedora-13-i386-DVD
$ ls
Code:
Fedora-13-i386-CHECKSUM Fedora-13-i386-DVD.iso
[Code]....
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May 20, 2010
I've been using a script to compare the MD5sum of a CD and the ISO used to burn the CD. This script works great in Fedora 8 but in Fedora 12 it returns a different check sum for the CD and ISO.
Code: #Compares the checksums of an iso9660 image and a burned disk.
#This script is released into the public domain by it's author.
if [ -n "$BASH" ]; then
shopt -s expand_aliases
fi
[Code].....
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Apr 19, 2011
why does md5sum return a dash at the end:
Code:
$ md5sum
string290350295 -
How can I remove this using the md5sum tags?
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