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Originally Posted by
peter.hentrich
As per the forums, most errors are due to:
1. Incomplete/bad download
2. Bad burn
yup, and both easily preventable:
1) Use the torrents rather than the mirrors, and do the simple md5 test. If you don't want to learn how to do either because you have never done them before, then it is very likely that Knoppix and Linux are not for you and you should stay with Windows.
2) Burning at slow speed, as an ISO, with burning software that supports both ISO burning and verification after burning (such as Nero) with verification enabled should give a good burn.
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Verifying of md5 checksum and burning a CD at slow speed are important.
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Downloads and burning
Harry, thanks for your experienced advice and patience with first-timers like me.
These are simple measures to ensure successful CD/DVDs:
1a) Use the torrents rather than the mirrors
Yes, this is the best option. Using a torrent does not eliminate errors though, as I discovered. Whether by user error or otherwise, my 'uTorrent' download was incomplete even when it said "finished". I had to re-check/re-start my download.
1b) Do the simple md5 test
Yes, this step should be mandatory after a finished download. Foolishly, I ignored this hash key verification and trusted my torrent application to verify the complete download.
For an explanation of the procedure, go to:
http://www.knoppix.net/wiki/Downloading_FAQ#Q:_What_are_these_strange_MD5_file s_that_accompany_the_ISO_CD_images.3F
It's a single command:
Code:
md5sum -c KNOPPIX_xxxxxxxx.iso.md5
Here is the erraneous output after my first attempt of the uTorrent download:
Code:
md5sum -c KNOPPIX_V6.2.1CD-2010-01-31-EN.iso
md5sum: @@@@@@@@@@@@@@@@@@@@@@@@@@ : No such file or directory
@@@@@@@@@@@@@@@@@@@@@@@@@@ : FAILED open or read
md5sum: int1e = %08x: No such file or directory
int1e = %08x: FAILED open or read
md5sum: WARNING: 2 of 2 listed files could not be read
Here is the successful output after I 're-checked' and 're-started' my uTorrent download:
Code:
md5sum -c KNOPPIX_V6.2.1CD-2010-01-31-EN.iso.md5
KNOPPIX_V6.2.1CD-2010-01-31-EN.iso: OK
Knoppix is working and an important lesson learned.
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