Let we think our
Solaris server password is lost:
There is only
way to access to server again is resetting the password.
For that we have
to have physical access to the server. (network access/CD or DVR Rom)
Boot the server
with a Solaris CD/DVD or a net boot with a JumpStart server from the OBP OK
prompt.
OK boot cdrom -s
or
OK boot net –s
This will boot
the server from the DVD or Jumpstart server and launch a single user mode (No
Password).
Mount the root
file system (eg: /dev/dsk/c0t0d0s0 here) onto /dvd
# mount /dev/dsk/c0t0d0s0 /dvd
/dvd is a temporary mount point
that is only available when you boot from DVD or a JumpStart server.
In here root
file system is mounted into /dvd. All you need to do is to edit the shadow file and remove the encrypted
password for root.
Now you have to
edit shadow file to remove existing root password (password is in encrypted).
# vi /dvd/etc/shadow
root:v.ncDEpjCColQ:15498::::::
daemon:NP:6445::::::
bin:NP:6445::::::
sys:NP:6445::::::
adm:NP:6445::::::
lp:NP:6445::::::
uucp:NP:6445::::::
svctag:*LK*:6445::::::
nobody:*LK*:6445::::::
noaccess:*LK*:6445::::::
nobody4:*LK*:6445::::::
nms:WYRY9Kdk/KJvg:15383::::::
daraka:bweoCRvEGLgcQ:15555::::::
remove everything in
between first “:” and second “:” ,save and quit with following command .:wq!
(now it’s looks like: root::15498::::::)
Now, exit from
the mounted file system (/dvd), unmount the root file system and reboot the
system.
# cd /
# umount /dvd
# init s
Now we can
login to root without password. Change password once you login.
# passwd root
New Password:
Re-enter new Password:
passwd:
password successfully changed for root
# reboot
Now you can be
able to logon with the new password set for root.
