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SubjectCannot mount old ext2 cdrom, but e2fsck shows no problems
Dear folks,

I made 18 ext2 cdroms in October 1998 using an old (new at the time) Red
Hat system. Now I can't mount them. e2fsck shows no problems. I also
can dd them to a file, then mount the file. But I want to be able to
simply access them directly. Current system: RH 7.1 with all updates.

Sorry, I can't remember the exact command I used to create the images.

I also want to better understand the output of dumpe2fs, and how to
relate this to mount.

I will be very grateful for any help that increases my understanding of
what is going on.

$ sudo mount -t ext2 /dev/scd0 /cdrom -o ro
mount: wrong fs type, bad option, bad superblock on /dev/scd0,
or too many mounted file systems

Other symptoms:

$ sudo fdisk -l /dev/scd0
Note: sector size is 2048 (not 512)

Disk /dev/scd0: 0 heads, 0 sectors, 0 cylinders
Units = cylinders of 1 * 2048 bytes

Disk /dev/scd0 doesn't contain a valid partition table

$ e2fsck -v -n /dev/scd0 2>&1 | tee e2fsck-v-n-dev-scd0
e2fsck 1.19, 13-Jul-2000 for EXT2 FS 0.5b, 95/08/09
/dev/scd0 has gone too long without being checked, check forced.
Pass 1: Checking inodes, blocks, and sizes
Pass 2: Checking directory structure
Pass 3: Checking directory connectivity
Pass 4: Checking reference counts
Pass 5: Checking group summary information

12714 inodes used (7%)
78 non-contiguous inodes (0.6%)
# of inodes with ind/dind/tind blocks: 2692/233/0
523394 blocks used (78%)
0 bad blocks

11306 regular files
1117 directories
0 character device files
0 block device files
0 fifos
0 links
282 symbolic links (282 fast symbolic links)
0 sockets
--------
12705 files

$ dumpe2fs -h /dev/scd0
dumpe2fs 1.19, 13-Jul-2000 for EXT2 FS 0.5b, 95/08/09
Filesystem volume name: <none>
Last mounted on: <not available>
Filesystem UUID: 7eb1b040-59f7-11d2-9e35-002018530df2
Filesystem magic number: 0xEF53
Filesystem revision #: 0 (original)
Filesystem features: (none)
Filesystem state: clean
Errors behavior: Continue
Filesystem OS type: Linux
Inode count: 166624
Block count: 665600
Reserved block count: 33280
Free blocks: 142206
Free inodes: 153910
First block: 1
Block size: 1024
Fragment size: 1024
Blocks per group: 8192
Fragments per group: 8192
Inodes per group: 2032
Inode blocks per group: 254
Last mount time: Fri Oct 2 21:06:45 1998
Last write time: Fri Oct 2 23:53:28 1998
Mount count: 3
Maximum mount count: 20
Last checked: Fri Oct 2 20:57:46 1998
Check interval: 15552000 (6 months)
Next check after: Wed Mar 31 20:57:46 1999
Reserved blocks uid: 0 (user root)
Reserved blocks gid: 0 (group root)

(I originally sent this to the Red Hat list, but there was no response).

--
Nick Urbanik, Dept. of Information & Communications Technology
Hong Kong Institute of Vocational Education (Tsing Yi)
email: nicku@vtc.edu.hk
Tel: (852) 2436 8576, (852) 2436 8579 Fax: (852) 2436 8526
pgp ID: 7529555D fingerprint: 53 B6 6D 73 52 EE 1F EE EC F8 21 98 45 1C
23 7B
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