[mdlug] Mystery file system

[Raymond McLaughlin]

> I tried using 'session=0' option
> during mounting that did not help either.

Have you tried session={1..3} ?

On 4/9/11, Aaron Kulkis <akulkis00 at gmail.com> wrote:
> R KANNAN wrote:
>> Looks like the header infromation is missing. 'od -c' yields
>>
>> 000000  \0  \0  \0  \0  \0  \0  \0  \0  \0  \0  \0  \0  \0  \0  \0  \0
>> *
>> 0100000  \0   B   E   A   0   1 001  \0  \0  \0  \0  \0  \0  \0  \0  \0
>> 0100020  \0  \0  \0  \0  \0  \0  \0  \0  \0  \0  \0  \0  \0  \0  \0  \0
>> *
>> 0104000  \0   N   S   R   0   3 001  \0  \0  \0  \0  \0  \0  \0  \0  \0
>> 0104020  \0  \0  \0  \0  \0  \0  \0  \0  \0  \0  \0  \0  \0  \0  \0  \0
>> *
>> 0110000  \0   T   E   A   0   1 001  \0  \0  \0  \0  \0  \0  \0  \0  \0
>> 0110020  \0  \0  \0  \0  \0  \0  \0  \0  \0  \0  \0  \0  \0  \0  \0  \0
>>
>
> maybe it's a raw file burned to the disk w/o any filesystem
> (as IF it were a .iso, without being an ISO9660 filesystem).
>
>
>
>
>> On Thu, Apr 7, 2011 at 10:38 PM, Aaron Kulkis <akulkis00 at gmail.com> wrote:
>>> R KANNAN wrote:
>>>> I got  data CD from someone and I am unable to mount the file system
>>>> on Linux but I can read it fine on Windows XP. The file system on
>>>> Windows says UDF and had about 700MB of data on it. While mounting on
>>>> Linux it just says
>>>>
>>> $ su
>>> password:
>>> # od -c /dev/dvdrecorder | less
>>>
>>>
>>> You should see the filesystem type spelled out in the first few
>>> characters.
>>>
>>> For example, here are the first few bytes of an XFS filesystem:
>>> root at kulkilap:/home/akulkis>  od -c /dev/sda6 | less
>>> 0000000   X   F   S   B  \0  \0 020  \0  \0  \0  \0  \0 001   O   7  \0
>>> 0000020  \0  \0  \0  \0  \0  \0  \0  \0  \0  \0  \0  \0  \0  \0  \0  \0
>>>
>>>
>>>
>>>> mount: wrong fs type, bad option, bad superblock on /dev/dvdrecorder,
>>>>        missing codepage or other error
>>>>        In some cases useful info is found in syslog - try
>>>>        dmesg | tail  or so
>>>>
>>>> dmesg|tail shows
>>>> UDF-fs: No partition found (1)
>>>> Unable to identify CD-ROM format.
>>>> end_request: I/O error, dev sr0, sector 336000
>>>> Buffer I/O error on device sr0, logical block 42000
>>>> end_request: I/O error, dev sr0, sector 336000
>>>> Buffer I/O error on device sr0, logical block 42000
>>>> end_request: I/O error, dev sr0, sector 336000
>>>> Buffer I/O error on device sr0, logical block 42000
>>>> end_request: I/O error, dev sr0, sector 336000
>>>> Buffer I/O error on device sr0, logical block 42000
>>>> end_request: I/O error, dev sr0, sector 336000
>>>> Buffer I/O error on device sr0, logical block 42000
>>>> end_request: I/O error, dev sr0, sector 336000
>>>> Buffer I/O error on device sr0, logical block 42000
>>>> end_request: I/O error, dev sr0, sector 335944
>>>> Buffer I/O error on device sr0, logical block 41993
>>>> end_request: I/O error, dev sr0, sector 335944
>>>> Buffer I/O error on device sr0, logical block 41993
>>>> UDF-fs: No partition found (1)
>>>>
>>>> Any ideas?
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