topic Re: Syatem Hangs at boot time in Operating System - Tru64 Unix

Syatem Hangs at boot time

Nuwan Alwis — Tue, 13 May 2008 05:33:50 GMT

im using DS15 alpha system with true64 5.1B.
my system hangs up when it boot with the following error

panic(cpu0):platform not supported by this kernel configuration.

then it Dumps

and then
halted CPU0
halt code=5

any idea why this happens. any help would be appreciate.

Re: Syatem Hangs at boot time

Vladimir Fabecic — Tue, 13 May 2008 07:22:00 GMT

You have to install OS with help of NHD disk.
See my reply at this thread:
https://forums11.itrc.hp.com/service/forums/questionanswer.do?admit=109447626+1210666777248+28353475&threadId=957425

Re: Syatem Hangs at boot time

Rob Leadbeater — Tue, 13 May 2008 10:34:58 GMT

Hi,

Is this a new installation, or an existing one ?

Maybe you just have to boot from the generic kernel, and build a new kernel for the DS15...

Cheers,

Rob

Re: Syatem Hangs at boot time

Vladimir Fabecic — Tue, 13 May 2008 11:07:16 GMT

Rob is right. I forgot to ask is it a new installation or not.
So boot with generic kernel and do
# doconfig (without any arguments)

Re: Syatem Hangs at boot time

Nuwan Alwis — Tue, 13 May 2008 14:10:24 GMT

Thanks guys,
few more clarifications.

Wel this is a existing installation.

so please instruct me how do i start with generic kernel and compile a custom kernel.

Re: Syatem Hangs at boot time

Rob Leadbeater — Tue, 13 May 2008 14:28:19 GMT

Hi,

The normal process would be to boot into single user and a generic kernel.

P00>> b -fl s -fi genvmunix

Once at single user, doconfig to build a new kernel.

# doconfig

You'll then need to copy the kernel from /sys//vmunix to / preferably making a copy of the origin /vmunix

Hope this helps,

Regards,

Rob

Re: Syatem Hangs at boot time

Nuwan Alwis — Wed, 14 May 2008 02:11:00 GMT

Thanks Rob,
I assume that the boot path according to your command would be the internal disk, right?

Wel bad scene is i have already tried it if so, which leads me to the error on my question.

panic(cpu0):platform not supported by this kernel configuration.

any other way to recover from this or any idea what would be the course of the issue.

Thanks again for all your guidance.

Re: Syatem Hangs at boot time

Rob Leadbeater — Wed, 14 May 2008 04:55:39 GMT

The boot path should be whatever disk your system normally boots from...

Hopefully this should be defined in one one of the bootdev SRM variables.... Take a lok at "show boot*"

If you don't know which disk your system boots from, then you'll have to go through each disk in turn - look at the output of "show dev"

Cheers,

Rob

Re: Syatem Hangs at boot time

Reto Kisseleff — Wed, 14 May 2008 05:01:54 GMT

Hello

because your original system has a different HW architecture comparing to your DS15 you're running into this panic. The problem is located in the HW database which you have to recreate.
Please follow these steps below to clean up HW-DB. The first boot will create a new from scretch. Of course this isn't official supported (but it works well). The only one supported way is to reinstall from scretch.
--------

boot OS-CD
exit to shell
manually mount your root_domain from bootdisk
to /mnt

rm /mnt/etc/dec*
rm /mnt/etc/dfsc*
rm /mnt/etc/dc*
cd /mnt/cluster/members/member/dev/; ./MAKEDEV std
rm /mnt/cluster/members/member/etc/dfsl*
rm /mnt/cluster/members/member/.Booted
cd /mnt/devices; rm -rf disk rdisk tape ntape cport dmapi changer

init 0
boot -fi genvmunix -fl s

mountroot
dsfmgr -K
dsfmgr -v # optionally -vF
hwmgr show scsi

bcheckrc
# fix if necessary links in /etc/fdmns

lmf reset
init 3

doconfig # build a new kernel

have fun!
cheers
Reto

Re: Syatem Hangs at boot time

Sri_10 — Mon, 23 Jun 2008 16:26:06 GMT

If it is a new install or new restore, the fix would be to install NHD7:

http://www.tru64unix.compaq.com/docs/nhd/NHD7/nhd_notes.pdf

NHD7 intall process is lengthy and painful. But, if you have another system(s) to play around with, you could install patch-kit#6 on that system-disk, (or put a patch-kit#6 generated kernel to a tape, and restore over here etc ..) then boot.

Re: Syatem Hangs at boot time

Nuwan Alwis — Tue, 24 Jun 2008 02:23:44 GMT

All you guys were right about the problem. The actual cause is we have a special media kit which is customized to our HW so. the normal media dosen't help. Any way thanks guys for all the help and keep up the good work.