On 17/04/12 18:05, Bernhard M. Wiedemann wrote:
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On 04/17/2012 04:05 PM, Richard MQ wrote:
Slightly OT I know - I'm trying to test Milestone 3 on a couple of
machines at work as well as my usual suspects at home. The
downloaded ISOs all match their MD5 and SHA1 sums on the home
system, but when I transfer them to my Linux box at work the sums
(mostly) fail. I get the same effect using several USB sticks, an
SD card and two portable HDs, using in each case ext4 and both with
and without encryption, and copying with KDE Dolphin, bash "cp" or
rsync. In fact, if I run "md5sum -c" or "sha1sum -c" directly on
the removable device it reports a fail (so no surprise that it's
corrupt on the target PC).
The only common element is the host PC, a fairly recent quad core
AMD Phenom running 12.1 and showing no other problems.
Has anyone seen anything similar? Any ideas welcome! I can't
download such large amount of data at work without causing myself
problems, so a transfer is the only choice.
Cheers Richard (MQ)
and you don't write it to the raw device (e.g. /dev/sdb) but as a file?
What kernel / filesystem do you use on the USB device?
The removable devices are all partitioned, generally into a small FAT
(*) one and a larger ext4 one. I'm using the KDE user mounting process,
so the partition labelled "foo" will be at "/media/foo".
There's plenty of space (> 1GB free after the transfer) and I'm copying
the files as the set e.g:
cp openSUSE-DVD-Build0315-x86_64.{iso, iso.md5, iso.sha1} /media/foo/bar
(*) yes I know a FAT partition cannot take a 4.7GB iso image. This is
not the issue here, I'm using ext4
Both machines are using up-to-date OSL 12.1 so kernels are 3.1.9 or so.
--
Cheers
Richard (MQ)
Linux user # 439271
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Richard (MQ)