How can I get access to the system if my fstab file is bad, or I have a
potentially corrupt AdvFS fileset?
The Problem: I was having intermittent failures from my Seagate drive on
SCSI id 2. I moved all AdvFS partitions off of that drive. I wanted to
consoladate the swap swap onto another drive. After researching this
problem, I see that I missed some items when changing the swap partition.
What I had done is that I had logged in on the console. My swap partition
was not setup properly, so CDE didn't start. Anyway, I ended up rewriting
my /etc/fstab file with just the 'cat' command, "cat > filename". I
thought I was careful with all of the necessary items, but apparently I
either mistyped, or my one fileset went bad on me. Well, now it starts up
and goes to a certain point and then fails. It won't go past the point
where is has tried to mount all the AdvFS sets. I have a DEC 3000 M300
machine, running DU 4.0a with no patches installed. Below is a copy of the
screen output I get.
What I see on bootup:
< -- Start of Text -- >
DEC 3000 - M300 system
... (Other items)
ADVFS: using 1005 buffers containing 7.85 megabytes of memory
Checking local filesystems
/sbin/ufs_fsck -p
Mounting / (root)
user_cfg_opt: reconfigured
Mounting local filesystems
exec: /sbin/mount_advfs -F 81920 root_domain#root /
root_domain#root on / type advfs (rw)
/proc on /proc type procfs (rw)
exec: /sbin/mount_advfs -F 16384 local_domain#local /usr/local
local_domain#local on /usr/local: No such domain, fileset or mount directory
exec: /sbin/mount_advfs -F 16384 local_domain#users /users
local_domain#users on /users type advfs (rw)
Nov 4 00:59:16 update: started
INIT: Command is respawning too rapidly. Check for possible errors.
id: cons "/usr/sbin/getty console console vt100"
< -- End of Text -->
It would be nice to be able to get to the system and change my /etc/fstab
file. Can I boot off of a CD and mount my AdvFS root partition? Any ideas
and help will be greatly appreciated. Thanks!
Bill
======================================================================
William (Bill) Whitehead | Ph:(801)378-3266 Fax:(801)378-6708 |
Library Information Systems | Email: |
2840 HBLL | mailto:william_whitehead_at_byu.edu |
Provo, UT 84602 | Home Page |
|
http://www.lib.byu.edu/~wbw |
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Received on Tue Nov 04 1997 - 10:05:22 NZDT