Filesystem is not clean – run fsck

Filesystem is not clean – run fsck

This article talks about the above message and how to fix it.

I couldn’t mount the floppy

I was trying to mount my floppy but it wasn’t working:

# mount /dev/fd0 /mnt
mount: Operation not permitted

Say what?  I tried again:

# mount /dev/fd0 /mnt
mount: Operation not permitted

OK.  Does my mount point exist?

# mkdir /mnt
mkdir: /mnt: File exists

Yes.  That’s there.  So what’s wrong?

# tail /var/log/messages
Jun 20 19:30:56 testbox /kernel: No MFS image available as root f/s.
Jun 20 19:30:56 testbox /kernel: Considering FFS root f/s.
Jun 20 19:30:56 testbox /kernel: changing root device to da0s1a
Jun 20 19:30:56 testbox /kernel: da0s1: type 0xa5, start 61, 
                                  end = 1045295, size 1045235 : OK
Jun 20 19:30:56 testbox /kernel: da1s1: type 0xa5, start 62, 
                                  end = 1065593, size 1065532 : OK
Jun 20 19:30:56 testbox /kernel: da1s1: type 0xa5, start 62, 
                                  end = 1065593, size 1065532 : OK
Jun 20 20:20:55 testbox su: john to root on /dev/ttyp0
Jun 20 20:21:02 testbox /kernel: WARNING: R/W mount of /mnt denied.  
                                  Filesystem is not clean - run fsck
Jun 20 20:22:27 testbox /kernel: WARNING: R/W mount of /mnt denied.  
                                  Filesystem is not clean - run fsck  

Ahhhh!  There’s the problem!  A dirty file system.

Running fsck

Here’s how I ran fsck:

# fsck -y /dev/fd0
** /dev/rfd0
** Last Mounted on /mnt
** Phase 1 - Check Blocks and Sizes
** Phase 2 - Check Pathnames
** Phase 3 - Check Connectivity
** Phase 4 - Check Reference Counts
** Phase 5 - Check Cyl groups
10 files, 2428 used, 387 free (11 frags, 47 blocks, 
                                  0.4% fragmentation)

***** FILE SYSTEM MARKED CLEAN *****
# mount /dev/fd0 /mnt
# cd /mnt
# ls
boot              boot.config     kernel.config   kernel.gz

OK.  There’s my files!  Now back to the 3.2 install.