[lkml]   [2003]   [Nov]   [5]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: 2.9test9-mm1 and DAO ATAPI cd-burning corrupt
Jens Axboe wrote:

> On Mon, Nov 03 2003, Prakash K. Cheemplavam wrote:
>> Hi,
>> well I am using k3b0.10.1 and either choosing cdrdao or cdrecord in
DAO mode to burn the cd ends up in non-bit identical copies, wheres ion
TAO (atleast with my 10x CD-RW I tested) the copy succeded. I tried
several times, and always got this issue.
>> bash-2.05b$ md5sum livecd-2.6_10-23-2003.iso
>> f73f3a74239dfe94b322b85fd14a306e livecd-2.6_10-23-2003.iso
>> TAO:
>> bash-2.05b$ md5sum /dev/cdroms/cdrom1
>> f73f3a74239dfe94b322b85fd14a306e /dev/cdroms/cdrom1
>> DAO:
>> bash-2.05b$ md5sum /dev/cdroms/cdrom1
>> 09e7e2a51af4c64685831513fbac18c2 /dev/cdroms/cdrom1
> Could you please try and cmp the two images, finding out how big the
> corrupted chunks are and what kind of data they contain?

After some further investigation I found out, that the data is NOT
corrupted, but in a way truncated in DAO mode: When I read out the image
from the CD-RW drive, about 5kbyte are missing at the end (and doing
several burn, it is always the same amount). Strange enough if I read
the DAO burnt disk out by my DVD-ROM, the image can be read out
completely! Can you understand this behaviour? I don't think it is a
problem of my burner, but rather of the atapi driver?




To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

 \ /
  Last update: 2005-03-22 13:58    [W:0.065 / U:6.552 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site