rp3440 not booting after kernel change

[billieperez]

Hello,

I have an rp3440 lab machine running hp-ux 11.11 with 4GB of memory. I made some kernel changes (based on a production server that has 16GB memory) and am not able to boot my system, in regular or single user mode nor am I able to put the previous kernel back. When I try to boot the system without intervention this is the error I get:


Boot
: disk(0/1/1/0.0.0.0.0.0.0;0)/stand/vmunix
11210752 + 2306048 + 8556280 start 0x1fece8

alloc_pdc_pages: Relocating PDC from 0xfffffff0f0c00000 to 0x3f900000.

Firmware Version 45.44

Duplex Console IO Dependent Code (IODC) revision 1

Stored message buffer up to panic:
kernel ran out of memory allocating structure file

System Panic:

linkstamp: Tue Jul 24 14:12:56 EDT 2007
_release_version: @(#) $Revision: vmunix: vw: -proj selectors: CUPI80_BL2000_1108 -c 'Vw for CUPI80_BL 2000_1108 build' -- cupi80_bl2000_1108 'CUPI80_BL2000_1108' Wed Nov 8 19:24:56 PST 2000 $
panic: Kernel requires more memory

PC-Offset Stack Trace (read across, top of stack is 1st):
0x002115d8 0x00202ab4 0x002860ec
0x00285664 0x00285604 0x00202b7c
0x0026e7b4 0x0047ba6c 0x00204f34
0x001ff2b4
End Of Stack

*** A system crash has occurred. (See the above messages for details.)
*** The system is now preparing to dump physical memory to disk, for use
*** in debugging the crash.

ERROR: Your system crashed before I/O and dump configuration was complete.
A crash dump cannot be taken under these circumstances without
special configuration. Contact your HP support representative.


When I try and boot to put the previous kernel back I get this:

Main Menu: Enter command or menu > bo pri isl
Interact with IPL (Y, N, or Cancel)?> y

Booting...
Boot IO Dependent Code (IODC) revision 1


HARD Booted.

ISL Revision A.00.43 Apr 12, 2000

ISL> hpux -is /stand/vmunix.prev

Boot
: disk(0/1/1/0.0.0.0.0.0.0;0)/stand/vmunix.prev
disk(0/1/1/0.0.0.0.0.0.0;0)/stand/vmunix.prev: cannot open, or not executable
Exec failed: No such file or directory

Any ideas on where to go from here? Besides a reinstall? And I don't have an ignite image.

Thanks for any info!

[Torsten.]

List your /stand contents and see what is there:

ISL> hpux -ls

[billieperez]

it says the only options are hpux -ls and hpux -lq

ISL> hpux -ls
Only options are -lm, -lq

[Torsten.]

Sorry, without "-":

ISL> hpux ls
or ll

[Anshumali]

Use the above command and see what backup you have under /stand If you are lucky, you should be able to boot from the previously saved kernel. If there is nothing which you can use, try your Latest Ignite...

[billieperez]

ok, here it is


ISL> hpux ls

Ls
: disk(0/1/1/0.0.0.0.0.0.0;0)/.
lost+found system kernrel ioconfig bootconf
.kminstall_lock system.d build vmunix rootconf
krs_lkg krs krs_tmp vmunix.prev dlkm
system.prev dlkm.vmunix.prev vmunix.prev1 system.prev1

[Torsten.]

Make sure to have an ignite backup next time.

If you don't have a backup kernel, use the recovery option from the install CD to install a new kernel with default settings as your last resort.

[Anshumali]

vmunix.prev1????

[billieperez]

I thought that the backup kernel is there though, vmunix.prev - so I'm not sure why when I use hpux -is /stand/vmunix.prev it's saying no such file or directory.

[Torsten.]

Try to boot "vmunix.prev1".

[Torsten.]

And check the size of the files with
hpux ll
to ensure they are >0

[Anshumali]

Lets hope they are >0
i forgot to read he doesnt have Ignite.
Bill, you have to go with the default kernel if your vmunix.prev1 is also a corrupted one.
Please never modify kernel without proper backup/failback plans.

[billieperez]

ok, thanks for the help thus far. Here's where I am. I meant to put in hpux -is /stand/vmunix.prev1, but forgot the one and it actually worked when I used hpux -is /stand/vmunix.prev -- same thing I used before but this time it recognized it. However it only got so far and put me in single user mode --

Starting the STREAMS daemons-phase 1
Checking root file system.
file system is clean - log replay is not required
Root check done.
Create STCP device files
Starting the STREAMS daemons-phase 2
$Revision: vmunix: vw: -proj selectors: CUPI80_BL2000_1108 -c 'Vw for CUPI80_BL2000_1108 build' -- cupi80_bl2000_1108 'CUPI80_BL200 0_1108' Wed Nov 8 19:24:56 PST 2000 $
Memory Information:
physical page size = 4096 bytes, logical page size = 4096 bytes
Physical: 4192256 Kbytes, lockable: 3149488 Kbytes, available: 3628812 Kbytes

/sbin/ioinitrc:
insf: Installing special files for ipmi instance 0 address 16
/sbin/krs_sysinit:
Kernel specific KRS file: /stand/krs/_stand_vmunix.prev.krs was not loaded.

INIT: Overriding default level with level 's'

INIT: SINGLE USER MODE

INIT: Running /sbin/sh

It looks like there is no /stand/krs/_stand_vumnix.prev.krs -- I was able to verify this by looking in the directory --
anyway to get around this?? and yes, next time I will make an ignite backup first :)

[Anshumali]

may be
init 3
Take all your kernel parameters listings.
Put the disk, install default. Make the changes which were stable.