[ubuntu-uk] Problem on upgrade to 12.10 with one usb disc

Sun Nov 18 15:26:47 UTC 2012

On 18 November 2012 14:36, allen williams <gerald.williams23 at yahoo.co.uk> wrote:
> 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
>>       (=?utf-8?B?YW50b25rMjAxMTdAZ21haWwuY29t?=)
>>
>>
>> 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

Edit the file by typing, in a terminal
gksu gedit /etc/fstab
and comment out the /dev/scd0 line and the /dev/disk/by-id... lines by
adding a # character at the front of the line, and save the file.
Make sure you do not change anything else.  Reboot and see if that
helps.

Colin

>
> 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
>
>
>
>
> --
> Using Opera's revolutionary e-mail client: http://www.opera.com/mail/
>
> --
> ubuntu-uk at lists.ubuntu.com
> https://lists.ubuntu.com/mailman/listinfo/ubuntu-uk
> https://wiki.ubuntu.com/UKTeam/