solaris 8 on intel boot problems

I have solaris 8 for intel installed.
One day it crashed after it rebooted automaticly. When I reboot it from hard disk, I got the following error message after loading dhcp and network adapter:
... mount /dev/dsk/c0d0s6 no such device
(My /usr file system installed on /dev/dsk/c0d0s6, and / file system on /dev/dsk/c0d0s0)
    WARNING: /usr/sbin/fsck not found, most likely mount of /usr failed or /usr file system is badly damaged.
 (sure, it cannot find fsck)
boot with -b option in an attempt to recover.

But I got the same error when I choose "b" option at the stage of "select (b)oot or (i)nterpreter".

I happened to boot it from the Device Configuration Assistant Boot Diskette (floppy disk). I also choose the "b" option, this time the system started successfully without any error. The boot from hard disk never succeeded after many attempts.

I want to use fsck to recover the /usr system. But I could not run fsck when /usr mounted.

But I could run fsck when I entered command line console. fsck reported that "/" and "/usr" "File system state in superblock is wrong. FIX?" I fixed it a couple of times until it did not give any such reports. However, I still could not boot it from hard disk. Same problems happened again.

What 's the problem? Could anyone help me? Thanks.


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moduloConnect With a Mentor Commented:
Finalized as proposed


Community Support Moderator
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It sounds like you've got a serious filesystem and/or disk problem. Are any other error messages reported when the system attempts to boot? Have you tried to boot in single user mode and fsck the filesystems from there ("b -s" at the boot prompt)? Also while in single user mode you should check your /etc/vfstab file to make sure that it hasn't been damaged.

You should also try to boot from the CDROM and run the format utility.  Check the disk layout.

You can then mount the /usr partition and fsck it safely.

Regards, Nisus
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