Re: ubuntu-uk Digest, Vol 91, Issue 19:
2. Problem on upgrade to 12.10 with one usb disc (allen williams)
3. Re: Problem on upgrade to 12.10 with one usb disc (Colin Law)
5. Re: Problem on upgrade to 12.10 with one usb disc
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Message: 2
Help please!
After upgrade from 12.04, switching on or attempting to mount one of my
usb hard drives gives this error message -.
Error mounting system-managed device /dev/sdg1: Command-line `mount
"/mnt/usb-ST350041_8AS_60CAFFFFFFFF-0:0-part1"' exited with non-zero exit
status 32: mount: wrong fs type, bad option, bad superblock on /dev/sdg1,
missing codepage or helper program, or other error
In some cases useful info is found in syslog - try
dmesg | tail or so
dmesg | tail gives (inter alia):
[ 1080.727830] sdg: sdg1
[ 1080.732003] sd 8:0:0:0: [sdg] Attached SCSI disk
[ 1081.383633] FAT-fs (sdg1): Unrecognized mount option "x-gvfs-show" or
missing value
[ 1871.160973] sdg: sdg1
The disc is seen by the new system as a "place" but clearly
does not like it, even though 12.04 used it perfectly
happily, as does 12.10 my other usb disc. I'm technically incompetent and
can't find anything to help with this difficulty, so any pointers are
most
welcome.
Allen Williams
In response to the kind suggestion, I have copied fstab (and fstab.bak,
for good measure) and reproduced them below:
# /etc/fstab: static file system information.
#
# <file system> <mount point> <type> <options> <dump> <pass>
proc /proc proc
defaults 0 0
# /dev/sda8
UUID=6a062fdd-e7a2-4f37-9d23-0994e6ec6ee9 / ext3
relatime,errors=remount-ro,user_xattr 0 1
# /dev/sda9
UUID=2ea8ad99-daa5-4b44-9673-35d5c2c984e1 none swap
sw 0 0
/dev/scd0 /media/cdrom0 udf,iso9660
user,noauto,exec,utf8 0 0
/dev/disk/by-id/usb-ST350041_8AS_60CAFFFFFFFF-0:0-part1
/mnt/usb-ST350041_8AS_60CAFFFFFFFF-0:0-part1 auto
nosuid,nodev,nofail,x-gvfs-show 0 0
fstab.bak is, by contrast:
# /etc/fstab: static file system information.
#
# <file system> <mount point> <type> <options> <dump> <pass>
proc /proc proc
defaults 0 0
# /dev/sda8
UUID=6a062fdd-e7a2-4f37-9d23-0994e6ec6ee9 / ext3
relatime,errors=remount-ro 0 1
# /dev/sda9
UUID=2ea8ad99-daa5-4b44-9673-35d5c2c984e1 none swap
sw 0 0
/dev/scd0 /media/cdrom0 udf,iso9660
user,noauto,exec,utf8 0 0
I am a technical ignoramus, but the contrast between the two is startling,
even to me!
The .bak file was originally generated on Thu 02 Jun 2011, so why the
upgrade should have generated the new file (particularly the last line) is
beyond me. The inclusion in the new file of this line
/dev/scd0 /media/cdrom0 udf,iso9660
user,noauto,exec,utf8 0 0
also seemed suspicious, so I tried replacing the dvd in the drive and,
indeed, there are hitherto unnoticed problems there, too, in that the disc
name does not alter in Nautilus, and the contents of the substituted disc
are not accessible to Nautilus (cited by "Properties" as "nothing").
At Colin's suggestion, I created and tried running the system from a
"live" DVD (upgrade from 12.04 was via updated manager). No problems in
that the "rogue" usb drive is correctly identified, mounted and is
accessible to the live disc user.
I have checked the bug whose link was provided and although I cannot
pretend to understand fully the report and responses, there does indeed
seem to be substantial commonality. However, that report seemed to be
concerned with duplication of links to drives (logos), rather than my
problem. Interestingly, the two usb hard discs did appear twice each in
Nautilus in my system BEFORE upgrading to 12.10. They were distinguished
by the addition of a "_" after the disc name in each case. For example,
the one named "My Book" appeared as that, and also as "My Book_". Although
odd, this was perfectly liveable, since the latter reliably worked while
the former did not work at all.
Further information: I have also had help from a self-confessed geek in
Australia. The system at present creates a folder on starting,
/mnt/usb-ST350041_8AS_60CAFFFFFFFF-0:0-part1 , which is empty. My advice
was to run: sudo mount /dev/sdd1 /mnt -t vfat -o ro . This replaces the
folder with the contents of the usb drive at /mnt. He thinks the usb file
system is corrupt, but all the above suggests to me it is not. On a fresh
boot, the system now pauses, giving a message saying it is waiting for the
drive with /mnt/usb-ST350041_8AS_60CAFFFFFFFF-0:0-part1. This has to be
skipped to continue, producing the situation as described.
I hope this enables a genius out there to give me simple instructions how
to put this right!
Allen Williams
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