Re: [opensuse] How do I mount a UDF CD?

On Fri, Feb 6, 2009 at 11:13 AM, Carlos E. R.
<robin.listas@xxxxxxxxxxxxxx> wrote:
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On Friday, 2009-02-06 at 10:54 -0500, Greg Freemyer wrote:

All,

A client gave me a CD written with a UDF filesystem (I think).

I can see the contents of the CD fine via XP.

With Opensuse 11.1 / Dolphin I get error messages.

From the command line I get:

mount -t udf -r /dev/sr0 /mnt
mount: wrong fs type, bad option, bad superblock on /dev/sr0,
missing codepage or helper program, or other error
In some cases useful info is found in syslog - try
dmesg | tail or so

dmesg in turn shows:

UDF-fs: No partition found (1)
end_request: I/O error, dev sr0, sector 173316
end_request: I/O error, dev sr0, sector 173312
end_request: I/O error, dev sr0, sector 173316
udf: udf_read_inode(ino 43329) failed !bh
end_request: I/O error, dev sr0, sector 173316
udf: udf_read_inode(ino 43329) failed !bh
UDF-fs: No partition found (1)

What should I try next?

FYI: I already have the data accessible by moving it to a thumb. I
would still like to know what is going on.

Well, it says there is a read error, and that is probably true. You could
try dd_rescue to get a file-image, and then try to mount that instead.


Someone commented here a better tool to recover data from recalcitrant
cd/dvds, but it seems I forgot to take a note of it.


Maybe it is a media error. When I try to make a iso via dd, I get

Feb 6 13:04:00 tiger3-64bit kernel: end_request: I/O error, dev sr0,
sector 1248
Feb 6 13:04:00 tiger3-64bit kernel: __ratelimit: 1 callbacks suppressed
Feb 6 13:04:00 tiger3-64bit kernel: Buffer I/O error on device sr0,
logical block 156
Feb 6 13:04:00 tiger3-64bit kernel: Buffer I/O error on device sr0,
logical block 157
Feb 6 13:04:00 tiger3-64bit kernel: Buffer I/O error on device sr0,
logical block 158
Feb 6 13:04:00 tiger3-64bit kernel: Buffer I/O error on device sr0,
logical block 159
Feb 6 13:04:00 tiger3-64bit kernel: Buffer I/O error on device sr0,
logical block 160
Feb 6 13:04:00 tiger3-64bit kernel: Buffer I/O error on device sr0,
logical block 161
Feb 6 13:04:00 tiger3-64bit kernel: Buffer I/O error on device sr0,
logical block 162
Feb 6 13:04:00 tiger3-64bit kernel: Buffer I/O error on device sr0,
logical block 163
Feb 6 13:04:00 tiger3-64bit kernel: Buffer I/O error on device sr0,
logical block 164
Feb 6 13:04:00 tiger3-64bit kernel: Buffer I/O error on device sr0,
logical block 165

I don't care that much, so I'm going to let this go as defective media.

Greg
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