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Operating System - Tru64 Unix
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Crash boot on ES45

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Dušan
Occasional Advisor

Crash boot on ES45

Hi all,

I have problem with boot my tru64 5.1b OS.
Some history:
- I install ftp server from distributed media
- I config something about it
- I cannot to login as anybody and as root on local server too
- I restart the server, hope solve that problem
- after restart boot failed with POST message "can't find osf_boot"
- I find method to copy osf_boot from distributed CD to my crashed boot fileset
- after next restart boot stop on POST message "can't find vmunix"
- same method descripted above I copy /* (withuot folders) to my root (/mnt)
- next restart freezed on POST message starting UNIX (or something like that), but it does not continue

PLEASE HELP

Thank YOU very much for any answer.

Dusan
9 REPLIES
Johan Brusche
Honored Contributor

Re: Crash boot on ES45

Dusan,

Are you sure the console parameter "bootdef_dev" still points to the correct disk device ?
When did you boot from CD, did you check that root_domain#root was still intact ?
What was missing ?
did you try >>>b -fl s -fi genvmunix ?

__ Johan.

_JB_
Dušan
Occasional Advisor

Re: Crash boot on ES45

Now I dont know how I can stop the boot sequence in order to check what you wrote.

Thanx
Dusan
Dušan
Occasional Advisor

Re: Crash boot on ES45

After return command -
b -fl s -fl genvmunix
system get message
can't open /etc/sysconfigtab.38

Thanks

Dusan
Johan Brusche
Honored Contributor

Re: Crash boot on ES45


Guess you executed an "rm *" in / !!??

Again, when you boot from CD, and mount the root fileset on /mnt, what files are in /mnt/etc ?

To get around missing sysconfigtab, I believe you can boot with
>>> b -fl sc -fi genvmunix

__ Johan.

_JB_
Dušan
Occasional Advisor

Re: Crash boot on ES45

When I mounted my old root to /mnt and list /mnt/etc there were only passwd, group and one more file started with . , so I:

cp -R /etc/* /mnt/etc/
next I mounted also var and copy files like above.

Now, if I boot normaly (from dka0) boot repeat me a message
no vmunix module_list
and if I boot with -fl s -fl genvmunix I don't know what parameter is needed to enter when asking me so after return (whitout any option) repeat me a message
can't open /etc/sysconfigtab.38

What I doing wrong?
Thank you
Dusan
Dušan
Occasional Advisor

Re: Crash boot on ES45

I find what I read wrong
instead b -fl s -fi genvmunix
I enter b -fl s -fl genvmunix
so that is why it asked me for option.

Sorry...
Dušan
Occasional Advisor

Re: Crash boot on ES45

I booted to secondary boot.

What I must to do now?

Thanks.
Johan Brusche
Honored Contributor
Solution

Re: Crash boot on ES45


If files are missing like that, anywhere in all the filesystems, you migth have a crontab entry with a bad script that does a "find and rm" in several directories.

You better restore your system from a vdump, or if no backup, re-install.
Copying from the distribution CD does not create a supported system.

___ Johan.

_JB_
Dušan
Occasional Advisor

Re: Crash boot on ES45

OK, I re-install it.

Many Thanks,

Dusan