UNIX for Dummies Questions & Answers

Hey all,

When loading a Sun Ultra 60 I got running Solaris 9 I get a error. This error will only happen when I have a external CD-RW drive attached.

The error is;

Failed to power up sd21, see your administrator or reboot

I have rebooted and well I am the administrator for this machine. If I take the external drive off the machine everything works just fine. I've tested this with 2 different external burners that I have and get the same error.

I think it's trying to tell me it can't power up the SCSI device (SD), but if that's teh case how can I go about trying to fix it?

Also later in boot it'll say the same error but add 'genunix' infront of the error. Just before it loads into the login console, it'll also repeat the message like a few hundred times

Does anyone have any idea's how I can fix this

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Thanks for the help all. I got the problem fixed. Issue was something with Solaris 9 I down graded to Solaris 8 and everything seems to be working fine now.

When I got some time I'll see why it didn't work with Solaris 9.

I think of the following options

a) You are usings devives with different scsi interfaces, make sure the oldest type of interface is the last device on the chain.

b) your cable lenght is to long. see the SUN docs to find the max. lenght.

c) Your CD-RW uses the same scsi-id as your disk, go back on the bootprompt and check with probe-scsi.

Boot your system to OK prompt and see if the cdrom shows up by issuing probe-scsi-all

if cdrom show up then issue
boot -r

once this is sucessfull you should be able to boot
the system and also mount cdrom.

if error message still continue check /var/adm/messages for any error log and post back

Thanks for the advice.

I forgot to mention that when I do a probe-scsi-all it replies non-stop "bus fault"

Before you can invoke `probe-scsi-all` you need to set the auto-boot? to false by



ok setenv auto-boot? false
ok reset

ok probe-scsi-all
Wait for OK prompts you again, exam output

ok setenv auto-boot? true
ok reset

Merlin,

When you get Bus faults, it can be you did NOT terminate the bus