Comments on: Getting the right image http://xubuntublog.wordpress.com/2007/10/08/getting-the-right-image/ Not quite everything about Xubuntu, but close. Wed, 23 Jul 2008 15:21:49 +0000 http://wordpress.org/?v=MU By: Sharing the love with BitTorrent « Xubuntu Blog http://xubuntublog.wordpress.com/2007/10/08/getting-the-right-image/#comment-4087 Sharing the love with BitTorrent « Xubuntu Blog Thu, 24 Apr 2008 16:47:08 +0000 http://xubuntublog.wordpress.com/2007/10/08/getting-the-right-image/#comment-4087 [...] you’re done downloading, you’ll want to verify that the file you downloaded is the correct one. After you’ve done that, the big moment is there: you can install [...] [...] you’re done downloading, you’ll want to verify that the file you downloaded is the correct one. After you’ve done that, the big moment is there: you can install [...]

]]> By: Vincent http://xubuntublog.wordpress.com/2007/10/08/getting-the-right-image/#comment-4062 Vincent Fri, 18 Apr 2008 07:24:17 +0000 http://xubuntublog.wordpress.com/2007/10/08/getting-the-right-image/#comment-4062 Have you tried booting it? (Supposing it was a LiveCD) <a href="http://cdimage.ubuntu.com/xubuntu/releases/7.10/release/" title="Xubuntu 7.10" rel="nofollow">The images</a> have not been updated since 16 October 2007, and have since worked for many people. What <em>might</em> be the case is that the ISO's also do not include those files on the server (accounting for the correct MD5 sum), and that these files are simply not needed (accounting for the many correct installations). MD5 does not, though, report missing files. It only gives an MD5 checksum which has to be the same as the one on the server. So I suppose it was something else that checked the CD and which somehow thought these files were supposed to be present. Have you tried booting it? (Supposing it was a LiveCD)
The images have not been updated since 16 October 2007, and have since worked for many people.
What might be the case is that the ISO’s also do not include those files on the server (accounting for the correct MD5 sum), and that these files are simply not needed (accounting for the many correct installations).
MD5 does not, though, report missing files. It only gives an MD5 checksum which has to be the same as the one on the server. So I suppose it was something else that checked the CD and which somehow thought these files were supposed to be present.

]]> By: geomorillo http://xubuntublog.wordpress.com/2007/10/08/getting-the-right-image/#comment-4060 geomorillo Fri, 18 Apr 2008 00:49:37 +0000 http://xubuntublog.wordpress.com/2007/10/08/getting-the-right-image/#comment-4060 I can demonstrate that the original xubuntu 7.10 iso from the website contains corrupted files when i downloaded the iso the md5 was correct so the iso i have downloaded was right then i burned it into a cd twice, both cds reports 7 not found files, and 1 crc file error well maybe my cd writer is burning bad cds?? i dont think so, So i've made a little test, i opened the iso file with winrar, and uncompressed it, the md5 reports again 7 not found files and 1 crc error So the original iso from the website contains corrupted files am i wrong??? I can demonstrate that the original xubuntu 7.10 iso from the website contains corrupted files

when i downloaded the iso the md5 was correct so the iso i have downloaded was right

then i burned it into a cd twice, both cds reports 7 not found files, and 1 crc file error

well maybe my cd writer is burning bad cds??

i dont think so,

So i’ve made a little test, i opened the iso file with winrar, and uncompressed it, the md5 reports again 7 not found files and 1 crc error

So the original iso from the website contains corrupted files am i wrong???

]]> By: TuxFeed » Getting the right image http://xubuntublog.wordpress.com/2007/10/08/getting-the-right-image/#comment-3786 TuxFeed » Getting the right image Thu, 14 Feb 2008 20:08:01 +0000 http://xubuntublog.wordpress.com/2007/10/08/getting-the-right-image/#comment-3786 [...] Using Toad’s very useful comment this post now uses a better method. Thanks [...] [...] Using Toad’s very useful comment this post now uses a better method. Thanks [...]

]]> By: Toad http://xubuntublog.wordpress.com/2007/10/08/getting-the-right-image/#comment-2946 Toad Sun, 21 Oct 2007 17:57:14 +0000 http://xubuntublog.wordpress.com/2007/10/08/getting-the-right-image/#comment-2946 You're very welcome, glad I could help out. :) I think you have created the definitive Xubuntu post/article for MD5SUMing. :) You’re very welcome, glad I could help out. :) I think you have created the definitive Xubuntu post/article for MD5SUMing. :)

]]> By: Vincent http://xubuntublog.wordpress.com/2007/10/08/getting-the-right-image/#comment-2941 Vincent Sun, 21 Oct 2007 13:52:57 +0000 http://xubuntublog.wordpress.com/2007/10/08/getting-the-right-image/#comment-2941 Toad, thanks a lot, that was very helpful (and less prone to humar error ;-) ). I've added it to the post :) Toad, thanks a lot, that was very helpful (and less prone to humar error ;-) ). I’ve added it to the post :)

]]> By: Toad http://xubuntublog.wordpress.com/2007/10/08/getting-the-right-image/#comment-2928 Toad Sun, 21 Oct 2007 00:54:58 +0000 http://xubuntublog.wordpress.com/2007/10/08/getting-the-right-image/#comment-2928 Nice article, the pictures are sweet touch. I have two things to say, and I think they would be beneficial in your article. Perhaps you can add and flesh them out some. If you like my suggestions, I hope you can improve my ideas into some coherent; your writing style is much better than mine. This code below makes life very simple compared to running md5sum and comparing method. Personally, I hate comparing by hand, since it is slow and I'm afraid might miss something. For while, I used a little interactive python to do checking for me, then I found out about the -c option for md5sum. $ md5sum -c MD5SUM Where 'MD5SUM' is the file downloaded from the ubuntu download page, residing in the same directory as the .iso file. Either delete the other .iso entries in MD5SUM, or just ignore the errors md5sum will give since most likely the user hasn't downloaded all of the .iso files that are referenced in MD5SUM. I recommend not deleting them just in case the user decides to try another .iso, the MD5SUM file won't have to be re-downloaded. Second: Make sure the burned cd is correct. I've had cd's that have had bad burns but good a .iso file. It seems there are two ways of doing this checking. method 1: Use the checking feature of the liveCD https://help.ubuntu.com/community/Installation/CDIntegrityCheck?action=show&redirect=CDIntegrityCheck method 2: use md5sum again, look at the 'MD5SUM on CD' section at the bottom of the page in the url below. https://help.ubuntu.com/community/HowToMD5SUM I found that the code there doesn't quite work right anymore, but it's nothing major. for some 'cd /cdrom' didn't actually point to the cd. This is what I used to check my Ubuntu 7.10 cd $ cd /media/dvdrecorder $ md5sum -c md5sum.txt | grep -v 'OK$' If the last command output anything, the burn is bad. Nice article, the pictures are sweet touch. I have two things to say, and I think they would be beneficial in your article. Perhaps you can add and flesh them out some. If you like my suggestions, I hope you can improve my ideas into some coherent; your writing style is much better than mine.

This code below makes life very simple compared to running md5sum and comparing method. Personally, I hate comparing by hand, since it is slow and I’m afraid might miss something. For while, I used a little interactive python to do checking for me, then I found out about the -c option for md5sum.
$ md5sum -c MD5SUM
Where ‘MD5SUM’ is the file downloaded from the ubuntu download page, residing in the same directory as the .iso file.

Either delete the other .iso entries in MD5SUM, or just ignore the errors md5sum will give since most likely the user hasn’t downloaded all of the .iso files that are referenced in MD5SUM. I recommend not deleting them just in case the user decides to try another .iso, the MD5SUM file won’t have to be re-downloaded.

Second:
Make sure the burned cd is correct. I’ve had cd’s that have had bad burns but good a .iso file. It seems there are two ways of doing this checking.

method 1:
Use the checking feature of the liveCD
https://help.ubuntu.com/community/Installation/CDIntegrityCheck?action=show&redirect=CDIntegrityCheck

method 2:
use md5sum again, look at the ‘MD5SUM on CD’ section at the bottom of the page in the url below.
https://help.ubuntu.com/community/HowToMD5SUM
I found that the code there doesn’t quite work right anymore, but it’s nothing major. for some ‘cd /cdrom’ didn’t actually point to the cd.

This is what I used to check my Ubuntu 7.10 cd
$ cd /media/dvdrecorder
$ md5sum -c md5sum.txt | grep -v ‘OK$’
If the last command output anything, the burn is bad.

]]> By: Papa http://xubuntublog.wordpress.com/2007/10/08/getting-the-right-image/#comment-2825 Papa Mon, 08 Oct 2007 18:12:23 +0000 http://xubuntublog.wordpress.com/2007/10/08/getting-the-right-image/#comment-2825 And .. the most important tip: do not burn another distro :-)) Nice post Vincent !! Dad And .. the most important tip: do not burn another distro :-))

Nice post Vincent !!

Dad

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