Can not boot off of old vmunix in 11.23.

[John E. Goetz]

I'm trying to boot off an old kernel, for example /stand/backup/vmunix or /stand/vmunix.prev and it keeps linking back to /stand/vmunix. Any suggestions?

[Ivan Krastev · Accepted solution]

If you have Integrity based server use in EFI shell:

HPUX> boot backup

for PA-RISC use in ISL:

ISL>hpux backup/vmunix


See more info here 'Booting a Saved Configuration' - http://docs.hp.com/en/B2355-90950/ch03s11.html


regards,
ivan

[whiteknight]

Hi John,

Booting a different kernel configuration
========================================
Sometimes you may need or want to select a different kernel configuration during boot up. The kconfig(5) man page discusses this topic. For a PA-Risc box it is as easy as specifying the path to the alternate configuration kernel using the hpux ISL command. As we discussed, configurations are just directories in /stand. The automatic backup kernel is located at /stand/backup/vmunix. The following is an example of booting the backup kernel configuration.

ISL Revision A.00.44 Mar 12, 2003

ISL> hpux (;0)/stand/backup/vmunix

Boot
: disk(0/0/0/3/0.6.0.0.0.0.0;0)/stand/backup/vmunix
11870208 + 6577688 + 4177520 start 0x830a768


WK

[John E. Goetz]

That worked. Thanks!