From: Rob De Langhe (rob.delanghe@telindus.be)
Date: Mon Aug 25 2003 - 03:10:32 EDT
Hi,
this weekend I shuffled a bit with my computers on the attick, among which
an old-timer Sparc-10 (Solaris-8) that has been running for years as a
full-blown high-speed (...) file/backup server.
It has 2 internal 1GB disks on "c0", targets 3 (=boot disk) and 0 (extra
store).
On its SCSI adapter, I first had an external 9GB disk connected (target 6),
then another 9GB disk (target 4), a CD-ROM (target 5) and at the end of the
chain a tape drive (target 2).
I recently installed a 120GB IDE drive in one of the other boxes, so wanted
to reduce the function of the Sparc-10 to only performing backups, so I took
away the two external disks, leaving only the CD-ROM and then the tape
drive.
The symptoms of problems started when I brought this machine down, giving
problems with "vold" that did not want to unmount properly a CD which was in
the drive.
But when I rebooted him, the console gave messages "cdrom isn't unique",
further booting went OK into multi-user. "vold" still didn't mount any CD,
manual mounting of the CD ("mount -F hsfs /dev/dsk/c0t5d0s2 /mnt") gave
error ("No such device" or so).
Went back into PROM, saw that "cdrom" was defined 2 times in the
device-aliases.
Always having problem with "nvunalias" it just doesn't get rid of the
specified entry. So I went for "set-defaults" followed by a power-cycle.
This sets "boot-device disk net" where "disk" is by default defined as
target 0, so I changed "boot-device" into "disk3".
Booting was OK into multi-user, "vold" still didn't mount the CD... No more
messages "cdrom isn't unique". Manual mount of the CD still gave "No such
device" (or so).
According to Infodocs in Sunsolve, removed everything under /devices and
/dev, then launched "reboot -- -rs"
NOW the machine didn't boot anymore ... thanks SunSolve!
With "boot -rs", it starts to load Solaris from the internal disk target 3,
prints "Solaris 8 xxx" followed by the Copyright message, then it's stuck.
With "boot cdrom -s" it simply doesn't access the CD (LED doesn't flash
indicating no activity) and hangs forever.
>From PROM, a "probe-scsi-all" correctly shows all devices : 2 internal
disks, then the CD-drive, then the tape. All at the expected SCSI target
numbers.
When I disconnected the SCSI cable from the Sparc-10 adapter, so that it
'sees' only its internal disks, the "boot -rs" still hangs at the same
point.
I saw a SunSolve (...) Infodoc describing such situation as possibly caused
by memory errors, so I ran "test memory" from PROM, but entirely
successfull.
Not having a clue anymore what to do next, but not wanting to throw my
old-timer in the wastebin yet, I am addressing myself to the ever-so good
SunManagers group to find sprankles of hope ...
TIA
Rob
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