[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Breaking UNIXes from the Console



Hi!

The issue of breaking Linux from the console and/or achieving root
permissions, arises again and again. As you can guess, the problem
is not Linux' only. I know it for years, and once, even used it to
solve a problem of a customer who forgot the root's password
(instead of using the classic ways, I only replaced the function in
the kernel which decides if you have the priviledged permissions,
to a function which returns always true. The part which took most
of the time needed, 20 moments, was learning the Assembly of the
68030, and what is needed to return true in this Assembly...).

Today, I saw the following message (from an Indian man) in a mailing
list of Solaris; It uses the fact that the installation media of
Solaris is already a system ready for booting and running (as some
of the distributions of Linux):
____________________________________________________________________

Subject: Re: S-x86; more of a sparc question/root passwd lost

Insert your Solaris CD in drive

Press STOP-A

OK> boot -s cdrom

# mount -F ufs /dev/dsk/c0t0d0s0 /mnt    <------   Replace c0t0d0s0 
with root slice of your boot disk

# cd /mnt/etc

# vi shadow

Remove the encrypted password string from entry  of root

Save the file

# cd /

# umount /mnt

# reboot

This should solve your problem

Kamal

____________________________________________________________________

Please try it only on YOUR system!

-- 
Eli Marmor
marmor@elmar.co.il
El-Mar Software Ltd.