I booted from the Ubuntu10.04-cd in order to check whether the cd-drive was in error or not. I could boot without any problems from the cd and no error-messages were logged. So the conclusion is that one of the recent updates has a regression in it.
For further reference:
[ 2.062871] sr 1:0:0:0: Attached scsi CD-ROM sr0 [ 2.063730] scsi 1:0:1:0: CD-ROM HL-DT-ST CD-RW GCE-8320B 1.04 PQ: 0 ANSI: 5 [ 2.065958] sr1: scsi3-mmc drive: 40x/40x writer cd/rw xa/form2 cdda tray [ 2.066538] sr 1:0:1:0: Attached scsi CD-ROM sr1
// after inserting a blank cd
[ 2132.107680] cdrom: This disc doesn't have any tracks I recognize! [ 2132.130079] sr 1:0:1:0: [sr1] CDB: Read(10): 28 00 00 00 00 00 00 00 01 00
I booted from the Ubuntu10.04-cd in order to check whether the cd-drive was in error or not. I could boot without any problems from the cd and no error-messages were logged. So the conclusion is that one of the recent updates has a regression in it.
For further reference:
[ 2.062871] sr 1:0:0:0: Attached scsi CD-ROM sr0
[ 2.063730] scsi 1:0:1:0: CD-ROM HL-DT-ST CD-RW GCE-8320B 1.04 PQ: 0 ANSI: 5
[ 2.065958] sr1: scsi3-mmc drive: 40x/40x writer cd/rw xa/form2 cdda tray
[ 2.066538] sr 1:0:1:0: Attached scsi CD-ROM sr1
// after inserting a blank cd
[ 2132.107680] cdrom: This disc doesn't have any tracks I recognize!
[ 2132.130079] sr 1:0:1:0: [sr1] CDB: Read(10): 28 00 00 00 00 00 00 00 01 00