topic Re: RHEL5 keeps on rebooting in Operating System - Linux

RHEL5 keeps on rebooting

Yaboto — Thu, 21 Oct 2010 15:23:05 GMT

Hi,

I have restored a full file system backup to a new installed RHEL5. Upon restarting, the server would keep on rebooting each time it is about to bring the LOG ON screen.
Please, is there anyway I can enter into a minimal mode to be able to troubleshoot (for example SINGLE USER or MAINTENANCE modes in HP Unix, SAFE MODE in Windows)?

Please help,

Yaboto

Re: RHEL5 keeps on rebooting

Alzhy — Thu, 21 Oct 2010 17:35:13 GMT

Sure you can.

On the Grub Menu splash screen right after restarting, interrupt it.

Edit the kernel line and add "single"

b to boot

You are in single user mode.

What Full Filesystem backup did you restore? Is it an applications software tree for that matter?

Re: RHEL5 keeps on rebooting

Yaboto — Fri, 05 Nov 2010 11:56:34 GMT

Please, I mean full file system including the application three: everything.

This method of recovery works very well even with Oracle Database sitting on HP-UX even though it may not be recommended, just that you may need to reconfigure some LVM or volume group settings, at times removing some specific systems files.

Any idea to help me out, please.

Re: RHEL5 keeps on rebooting

iinfi1 — Sat, 06 Nov 2010 11:21:10 GMT

goto /etc/inittab
in single user mode

id:5:initdefault:

check the above line. it sud be the way i have written above. i think it mite be 6 in ur case

Re: RHEL5 keeps on rebooting

S.N.S — Sun, 07 Nov 2010 07:17:37 GMT

Hi,

The Single user mode would be got by init 1.

If that doesn't work: you would need to go to
linux rescue, else linux emergency mode

Some excellent reading here:
http://www.debiandoctor.com/mailweb/booting-single-user-mode-rescue-mode-emergency-mode-completely-explained.html

(same for RHEL)..

HTH
SNS