SUMMARY: Checksum error at boot time

Date: Sat Apr 10 1993 - 08:38:13 CDT


My original query:
==>One of our users has an IPX SunOs 4.1.1, 32M ram, I internal Quantum 207M dr
==>two external 1G disks. He shutdown his machine gracefully, (sync, fasthalt
==>that kind of stuff, and then turned the power off.) Now it does not
==>boot. It gives a checksum error
==> Booting off,0
==> Checksum 68bb5692 != 5f583357
==> Trying to boot anyway.
==> Instruction access exception.
==>I booted it as a diskless client over the net and it booted just fine.
==>I'm lost. Any idead or suggestion will be appreciated and I will summarize.
==> -Vispi

The answer, as all the respondents pointed out was that somehome (I don't know
how) the file /boot was missing. An installboot fixed it.

The process I used:

Booted it as a diskless client.

# mount /dev/sd0a /mnt
# cd /mnt
# ftp'd /boot from another IPX to /mnt/boot
# cd /usr/kvm/mdec
# installboot -v /mnt/boot bootsd /dev/rsd0a
# halt

Booted it of its internal disk, and everything worked fine.
Thanks to the following for their prompt and accurate responses. (Brett Lymn) (Tobias Weingartner) (Halvard Halvorsen)
Glenn Satchell glenn%ups.uucp@fourx.Aus.Sun.COM (Robert M. Kuhn)
Val Lowe <> (Zhou Shouben) (Bob Keegan) (Steve Winters) (Bill Heiser) (Russ Poffenberger) (Andy Feldt) (Robert Holder)
Steve Elliott <> (Henry Katz) (John McCartney)

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