[tech] Re: [wheel] Mussel...

[Nick Bannon]

OK... it's back up and is now connected to the console switch. (with the
help of a PS/2 adaptor from the helpfully labelled Keyboards box on the
shelves ::-) )

mussel said:
[...]
Feb 22 03:52:11 mussel kernel: Linux version 2.4.1 (root at mussel) (gcc version 2.95.3 20010125 (prerelease)) #2 SMP Thu Feb 22 03:10:30 WST 2001
[booting]
[time passes uneventfully]
Feb 24 14:09:34 mussel kernel: nfs: server home.ucc.gu.uwa.edu.au not responding, still trying
Feb 24 14:12:04 mussel kernel: nfs: task 15284 can't get a request slot
Feb 24 14:12:30 mussel kernel: nfs: task 15285 can't get a request slot
[time passes with one of these messages every so often]

morwong said:
Feb 24 13:05:15 morwong vmunix: NFS server: stale file handle fs(3169,81449) file 28578 gen 32786
Feb 24 13:05:15 morwong vmunix:  RFS3_GETATTR, client address = 130.95.13.18, errno 22
Feb 24 14:09:23 morwong vmunix: svckudp_send: xdr_replymsg failed
Feb 24 14:09:23 morwong vmunix: rfs_dispatch: sendreply failed IP address: 130.95.13.18
[last two repeated at least every minute since then]
[...]

No logins would work, so I did a ALT-SYSRQ emergency sync/mount
ro/reboot. It came up OK, but did the same after an hour or so... I've
poked a bit further, but it may well do it again.

mussel seems capable of mounting the NFS entries in /etc/fstab, but
didn't do so at boot.

The fstab entries all used the auto and intr options - auto is
redundant, intr may be suitable for /home, but things like
ftp.uwa.edu.au should use soft. Given the problems, I've made it all
soft, and added an explicit nfsvers=2 for now.

The networking was wrong - the broadcast address should be
130.95.13.63, not .64, and the default gateway should be 130.95.13.3,
not 130.95.13.1.

Logins, even root, seem to access NIS - I've changed some
/etc/nsswitch.conf to "files nis" from "compat" so at least we should
be able to login as root without a network... Speaking of which, root
and other local entries seem to be in NIS - I don't think they should
be...

Anil suggested keeping a changelog on mussel - I think it's a good
idea, but I think a better one is the standard  mailing things to
tech at ucc (yes, really do it, even for little things). tripwire might be
better still...

Nick.

-- 
  Nick Bannon  | "I made this letter longer than usual because
nick at it.net.au | I lack the time to make it shorter." - Pascal