mount old linux disk to new Linux
 

Hi,

I have an old disk and trying to attach to the upgraded linux version hoping to see my old data. But I am not very successful.
What is the normal procedure to make the data from old linux to be visible to new Linux system?

- steps I took.

# fdisk -l /dev/sdc

Disk /dev/sdc: 160.0 GB, 160000000000 bytes
255 heads, 63 sectors/track, 19452 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot Start End Blocks Id System
/dev/sdc1 * 1 19452 156248158+ 83 Linux

After creating doing
# mkdir -p /mnt/sdc1

and modifying /etc/fstab file to have the line

/dev/sdc1 /mnt/sdc1 ext3 defaults 1 2

I typed

# mount -a

But I got the error as following:

mount: wrong fs type, bad option, bad superblock on /dev/sdc1,
or too many mounted file systems

Any idea to go futher from here? Thanks.

-- slcuser

Are you certain /dev/sdc1 is ext3 and not xfs, reiserfs, jfs, etc.? I would do something like 'file -s /dev/sdc1' to get more info about the filesystem.

Is ext3 correct as the filesystem? Try from the commandline with

mount -t ext3 /dev/sdc1 /mnt/sdc1

You may need to be root for it to work. In place of ext3 you could try ext2 and/or auto. And where you tried mount -a try mounting just sdc1 with mount /dev/sdc1.

EDIT: Matir and I were typing at the same time.

Hi,

Thanks for your kind inputs. I thought it was ext3 but not sure now since I did not
put the old system. I tried

Matir>
# file -s /dev/sdc1
/dev/sdc1: Linux/i386 swap file (new style) 1 (4K pages) size 1024134 pages

dracolich>
# mount -t ext3 /dev/sdc1 /mnt/sdc1
"mount: wrong fs type, bad option, bad superblock on /dev/sdc1,
or too many mounted file systems"
and the same thing for ext2.

Then from the result of the suggestion from Matir, the disk contains only swap space?

I forgot to mention one thing:
If I modify /etc/mtab by adding the line as
/dev/sdc1 /mnt/sdc1 ext3 rw 0 0
and type mount -a then I am able to mount the disk and reporting
#df
Filesystem 1K-blocks Used Available Use% Mounted on
....
....
/dev/sdc1 15709664 3677116 11234520 25% /mnt/sdc1

However, of I cd into the directory I do not see any old files there.
# cd /mnt/sdc1
# ls

--slcuser

Modifying mtab does not really mount the disk. mount -a returns no errors because it believes that disk is already mounted.

Yes you are right. But what happened to the files size reported from df?
So the old disk contain only swap files and cannot be mountable?

-- slcuser