panic: iinit
ellis at ultra.dec.com
ellis at ultra.dec.com
Sat Jul 26 01:52:39 AEST 1986
Posted: 23 Jul 86 17:13:30 GMT
dicome!salmi ran into trouble booting from a backup root filesystem.
He copied /dev/ra0a to /dev/ra2a (via dump/restore), then attempted
to boot from /dev/ra2a. The system printed out the message "panic: iinit"
and immediately tried to reboot again, resulting in a loop.
The key is that /vmunix (the file containing the executable kernel)
has built into it configuration information telling it that certain files
it requires to operate are mounted on /dev/ra0a.
You can't simply reboot a working unix from /dev/ra2a without having
/dev/ra0a around. You need to mount the disk pack with the backup root
filesystem into the /dev/ra0a drive (or, instead of swapping packs,
just swap the unit-number plugs on the drives if your drives allow
this -- much easier).
David Ellis
Digital Equipment Corporation, Littleton MA 617-486-6784
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