Hi, i was installing solaris 8 on sunfire v250 and the power fails , now it does not boot from cd rom and get the next msg:

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Sun Fire V120 (UltraSPARC-IIe 648MHz), No Keyboard
OpenBoot 4.0, 512 MB memory installed, Serial #56338483.
Ethernet address 0:3:ba:5b:a8:33, Host ID: 835ba833.



Executing last command: boot
Boot device: disk:a File and args:
SunOS Release 5.8 Version Generic_108528-11 64-bit
Copyright 1983-2001 Sun Microsystems, Inc. All rights reserved.
Cannot mount root on /pci@1f,0/pci@1/scsi@8/disk@0,0:a fstype ufs

panic[cpu0]/thread=10408000: vfs_mountroot: cannot mount root

0000000010407970 genunix:vfs_mountroot+70 (10435c00, 0, 0, 10410920, 10, 14)
%l0-3: 0000000010435c00 00000000104391a0 000000001e000000 0000000010435d98
%l4-7: 0000000000000000 00000000104136b8 00000000000b7bf6 0000000000001bf6
0000000010407a20 genunix:main+94 (10410168, 2000, 10407ec0, 10408030, fff2, 1004ef88)
%l0-3: 0000000000000001 0000000000000001 0000000000000015 0000000000000ea5
%l4-7: 0000000010428c20 00000000104623f0 00000000000cd920 0000000000000540

skipping system dump - no dump device configured
rebooting...
Resetti
LOM event: +0h2m51s host reset
ng ...

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What I must do to boot from cd-rom????

get the box to the ok prompt through stop-a and then type in "boot cdrom" ... make sure you reformat the drive when you reinstall ...

sun boxes can easily boot off the cdrom if there are no boot files found on the internal drives --- i'm guessing your process conked out after a bunch of the boot and system files have been put in so the system sees them and tries to boot off them after the reboot ... doing the stop-a and "boot cdrom" will insure that the box doesn't try to boot off the incomplete system installation ... good luck!