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Home > Forums > MIS/IT > Operating Systems - UNIX based > Sun: Solaris > FAQs

Sun: Solaris FAQ

Administration

I've forgotten/lost the root password
faq60-1568
Posted: 12 Feb 02 (Edited 2 Nov 05)

Load the Solaris cdrom (This does not have to be the same Solaris version as the machine.)

Take the machine down to the PROM level -
# init 0 (or halt)

When it comes down to the OK prompt -
OK boot cdrom -s

When it is back up -
# mount /dev/dsk/c0t0d0s0  /a (your root device/partition)
# fsck /dev/dsk/c0t0d0s0  (optional, if you can't mount disk)
# cd /a/etc
# TERM=vt100;export TERM
# vi shadow and remove second field on root line

The root line should like -
root::12345::::::  (it must start root:: the other values are not important)

wq! (or x!)
init 6 (or reboot)

When the machine comes back up -
passwd (set a new root password)

Steve

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