Simpler Navigation for Servers and Operating Systems - Please Update Your Bookmarks
Completed: a much simpler Servers and Operating Systems section of the Community. We combined many of the older boards, so you won't have to click through so many levels to get at the information you need. Check the consolidated boards here as many sub-forums are now single boards.
If you have bookmarked forums or discussion boards in Servers and Operating Systems, we suggest you check and update them as needed.
Operating System - Tru64 Unix
cancel
Showing results for 
Search instead for 
Did you mean: 

OS failed to boot up!

Jess_13
Advisor

OS failed to boot up!

Hi guys,
We shut down our server for hardware maintenance. When we try to boot up, failed with error message:
can;t open osf_boot
halted CPU 0
halt code = 5
HALT instruction executed
PC=20000030
boot failure

Can anyone help on this? Thanks!
3 REPLIES
Mark Poeschl_2
Honored Contributor

Re: OS failed to boot up!

Looks like your root file system has gotten messed up. The only way I can think of to proceed would be to boot off the installation CD and then (assuming your root file system is AdvFS):

# hwmgr -view dev
(find the devicename of the device containing your root file system -

# mkdir /etc/fdmns/temp_root

# mkdir /tmp/mnt

# ln -s /dev/disk/a /etc/fdmns/temp_root/a
(Note the 'a' after devicename - it's important!)

# mount temp_root#root /tmp/mnt

# cp /osf_boot /tmp/mnt/osf_boot

Shutdown system and try booting again. If osf_boot has been deleted or moved, it's quite possible other things in / have been messed up too, and you'll have other difficulties. Hopefully, you've got a good backup ;-)


Hein van den Heuvel
Honored Contributor

Re: OS failed to boot up!

Jess,
You recently poseted topic:
http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=1071632
In there you write how vmunix was not in its normal place.
Did you address that?
Did you fix it?

Can you boot genvmunix?

boot -fl a -fi genvmunix

Use that either fix vmunix or just built a new one?!

What Tru64 version are you running? (none :^)
google keywords: doconfig mountroot bcheckrc "mount -u"

hth,
Hein.

Manish PATHAK_2
Regular Advisor

Re: OS failed to boot up!

try to boot with genvmunix after that build your kernel and then reboot the system.

Br
Manish