Public bug reported:
Binary package hint: linux-source-2.6.20
With kernel 2.6.17-11 (feisty works fine with it) the cdrom is
automounting OK.
On 2.6.20-16:
# mount /media/cdrom/
mount: wrong fs type, bad option, bad superblock on /dev/sdb,
missing codepage or other error
(could this be the IDE device where you in fact use
ide-scsi so that sr0 or sda or so is needed?)
In some cases useful info is found in syslog - try
dmesg | tail or so
The according syslog lines:
Jun 14 13:15:18 gue704 kernel: [ 924.069940] UDF-fs: No partition found (1)
Jun 14 13:15:18 gue704 kernel: [ 924.195453] isofs_fill_super: bread failed,
dev=sdb, iso_blknum=16, block=32
# lspci
00:1f.1 IDE interface: Intel Corporation 82801BA IDE U100 (rev 11)
# cat /proc/diskstats
...
8 0 sda 14706 15762 608281 310264 3719 13256 135756 466784 0 83356 777048
8 1 sda1 1246 1252 0 0
...
8 9 sda9 1330 1336 8 8
8 16 sdb 4 0 14 0 0 0 0 0 0 0 0
...
# grep cdrom /etc/fstab
#former# /dev/hdc /media/cdrom udf,iso9660 user,noauto 0 0
/dev/sdb /media/cdrom udf,iso9660 user,noauto 0 0
#uname -a # for both kernels
Linux gue704 2.6.17-11-386 #2 Fri May 18 23:37:00 UTC 2007 i686 GNU/Linux
Linux gue704 2.6.20-16-386 #2 Thu Jun 7 20:16:13 UTC 2007 i686 GNU/Linux
Trevor Schauls, having the same lspci line, reported similar problems in
https://bugs.launchpad.net/ubuntu/+source/linux-
source-2.6.20/+bug/117413 (comment 2,6,13,14) but as pointed out by
Sitsofe Wheeler (117413#8) most likely for a different reason,
suggesting to report a new bug.
# lsmod | grep piix # on 2.6.17-11-386
piix 10628 1
# lsmod | grep piix # on 2.6.20-16-386
ata_piix 14596 9
libata 125208 2 ata_piix,ata_generic
Attaching full lspci -vv, lspci -vvn, dmesg for both kernels.
** Affects: linux-source-2.6.20 (Ubuntu)
Importance: Undecided
Status: Unconfirmed
--
(feisty) cdrom missing since 2.6.20-16 on 82801BA IDE U100 (ICH2) Intel chipset
https://bugs.launchpad.net/bugs/120389
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