How To Reset Root Password on ODA when password is unknown

Asset ID:	1-71-1568384.1
Update Date:	2013-07-15
Keywords:

Solution Type Technical Instruction Sure

Solution 1568384.1 : How To Reset Root Password on ODA when password is unknown

Applies to:

Oracle Database Appliance - Version All Versions and later
Linux x86-64

Goal

This document provides the steps of how to reset the root password on Oracle Data Appliance when the password is unknown.

This requires ILOM access to be able to launch remote console or local access.

Solution

Use ILOM to launch the Java Remote Console.

Reboot the system.

When the GRUB menu starts, press any key to interrupt the boot cycle.

There may be several choices to boot.

Example:

root (hd0,0)
kernel /vmlinuz-2.6.32-300.32.4.el5uek ro root=/dev/VolGroupSys/LogVo... <=== select the kernel
initrd /initrd-2.6.32-300.32.4.el5uek.img

Use the arrow key and select the kernel option.

Press “e” to edit GRUB.

Add a “1” to the end of line so it looks similar to this:

ro root=/dev/VolGroupSys/LogVol00 1

Save by pressing enter and it should accept change.

Press “b” key to boot.

During the boot process this will bring you to a shell prompt and now you can use the passwd command to change the password for the "root" account:

    sh-3.00## passwd
    Changing password for user root.
    New UNIX password:

you will be able to login to root with no password in the single user mode.

Then, change the password by using “passwd” command.

Reboot the DB node.

If needed, the default GRUB password is “sos1Exadata”.

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