Public bug reported:
Description: Checksum message is different with the source by using the
command "genisoimage -o image.iso /media/mount_point" (read from source)
and "growisofs -Z /dev/cdrom=image.iso" (write to disc)
Steps to replicate:
Create iso image using the command "genisoimage -o image.iso
/media/mount_point":
1. Insert a data CD in to the optical disk drive.
2. Open the terminal and type the command "md5sum /dev/cdrom" and record the
checksum message.
3. Create an iso image from the data CD using the command "genisoimage -o
image.iso /media/mount_point" (Browse to the folder /media, and check the
actual name for the mount_point such as /cdrom0, /cdrom1, etc.)
4. As the iso image has created, type the command "md5sum image.iso" and
compare the checksum message of the iso image with the source. (i.e. - Checksum
message is different.)
Create a disc using the command "growisofs -Z /dev/cdrom=image.iso":
5. Insert a writable DVD to the optical disk drive.
6. Type the command "growisofs -Z /dev/cdrom=image.iso" to copy the image to
disc.
7. As the copying process is completed, type the command "md5sum /dev/cdrom"
under the terminal and compare the checksum of the disc with the image. (i.e. -
Checksum message is different.)
Expected result: Checksum message of image and disc created should all
be the same.
System architecture: i686
Kernel version: 2.6.27-10-generic
CD-RW ROM: PLD-DS-8A3L (B)
** Affects: ubuntu
Importance: Undecided
Status: New
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[West Lake] Ubuntu 8.10: md5sum is different by creating image/disc from the
same source.
https://bugs.launchpad.net/bugs/341586
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