I have a disk that was part of an unRAID array.

 

I need to mount it ro in a different system, to read some files, but I am having no luck.

 

I get a message from mount:

 

mount: wrong fs type, bad option, bad superblock on /dev/sda,

      missing codepage or helper program, or other error

      In some cases useful info is found in syslog

 

Any suggestions?

 

 

Assuming it is /dev/sda, the command to mount it would be:

mount -t reiserfs /dev/sda1 /tmp/your_mountpoint

 

Make sure you are mounting partition 1 (sda1).  You must specify the type, and also the mountpoint. (the mountpoint directory should exist and be empty)

 

Although I'm sure you know, for the benefit of less experienced users... If it is the parity disk you are trying this with, forget it, it has no file-system.

 

Joe L.

mount -t reiserfs /dev/sda1 /tmp/your_mountpoint

 

Yup... did exactly that.

 

Also tried with -r and -o ro and even sloppy (-s).

 

mount -t reiserfs /dev/sda1 /tmp/your_mountpoint

 

Yup... did exactly that.

 

Also tried with -r and -o ro and even sloppy (-s).

 

what does fdisk say about the partitioning?

fdisk -l -u /dev/sda

 

also, if available, try:

vol_id /dev/sda1

 

Does the other linux system have support for reiserfs compile into the kernel?

 

Try:

cat /proc/filesystems

Yes, reiserfs support is in the kernel.  And the unRAID drive is fine, as if I put it back into unRAID, the array loads OK.

 

The deal is I had to make 3 copies of a 750GB EnCase image, and wanted to do it disk-to-disk rather than over the wire, and I run my dupes on another box w/ hot swappable bays.

 

I worked around it by formatting a spare as ext2, and putting that in the unRAID box, copying the image, and then removing it.... and THAT will mount fine in my other systems.

Yes, reiserfs support is in the kernel.  And the unRAID drive is fine, as if I put it back into unRAID, the array loads OK.

 

The deal is I had to make 3 copies of a 750GB EnCase image, and wanted to do it disk-to-disk rather than over the wire, and I run my dupes on another box w/ hot swappable bays.

 

I worked around it by formatting a spare as ext2, and putting that in the unRAID box, copying the image, and then removing it.... and THAT will mount fine in my other systems.

 

When you get a chance, do send me the output of:

dd if=/dev/sda count=1 | od -x -A d

and

fdisk -l /dev/sda

 

the "dd" should give me an octal dump of the partitioning and MBR, most of which should be blank except for the 16 bytes defining partition1 and the two signature bytes at the end.

 

You might also send an e-mail to Tom, since I think he will be interest in the inability to mount the disk with the file-system on a different linux box.

 

Joe L.