[mdlug] Mounting problems

[Raymond McLaughlin]

Joe Doehler wrote:
> I am trying to migrate to my new box that runs Fedora 10. My old box 
> runs an older version of RedHat.

How old? Is this box still running? If can you post a copy of the
/etc/fstab file so we can see what options it was using during normal
mounting.

Also you might see if debugfs or tune2fs are any help.

> One hard drive, with two ext3 
> partitions, works fine in the old box. When installed in the Fedora 
> 10 box, I cannot mount these partitions, either as ext3 or ext2:
> 
> # mount -t ext2 /dev/sdb1 /test
> mount: wrong fs type, bad option, bad superblock on /dev/sdb1,
>         missing codepage or helper program, or other error
>         In some cases useful info is found in syslog - try
>         dmesg | tail  or so
> 
> # dmesg | tail
> <snip>
> EXT2-fs: sdb1: couldn't mount because of unsupported optional features (4).

Do you also get the "unsupported optional features" message when you try
  mount -t ext3 ... ?

> sd 2:0:0:0: [sdb] 4001760 512-byte hardware sectors (2049 MB)
> sd 2:0:0:0: [sdb] Write Protect is off
> sd 2:0:0:0: [sdb] Mode Sense: 00 3a 00 00
> sd 2:0:0:0: [sdb] Write cache: disabled, read cache: enabled, doesn't 
> support DPO or FUA
> sdb: sdb1 sdb2

This sounds like a file system problem, not a disk or partition problem.
Kind of make me wonder what proprietary weirdness Red Hat cooked up back
when ever.

> Googling for "unsupported optional features (4)" indicates that I am 
> not the only one faced with this annoyance, but resolution escapes 
> me, as it does with others.
> 
> Yes, the drive is configured properly. fdisk sees what is expected. I 
> can use my network to move my stuff, but I would like to know what is going on.

> Joe.