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Re: Boot fails unless power is cycled

From: Yedidyah Bar-David
Subject: Re: Boot fails unless power is cycled
Date: Thu, 2 Feb 2006 22:33:52 +0200
User-agent: Mutt/1.5.6+20040907i

On Thu, Feb 02, 2006 at 09:16:07AM -0800, 1arryb (sent by Nabble.com) wrote:
> Hi all,
> I'm running CentOS (Rocks 4.1) on a Compaq Presario.
> This machine boots fine from a cold start but won't reboot. I know the cpu is 
> posting because I can see the cdrom light and hdd light go on briefly, I 
> presume, looking for a bootable partition. My /boot is a subdirectory of /, 
> which is an efs3 partition on a SATA drive.

I guess you mean ext3. I know no efs3, only efs (of SGI - partially
supported by linux), which IIRC isn't supported by grub.

> I don't know if this is relevant, but I don't see an e3fs_stage1_5 file in 
> /boot/grub. Is it ok to boot from an efs3 partition?
> How can I debug this? NOTHING is written to the screen, no splash, no 
> messages, no nada.

You'll first have to describe with much more details what you do and
what happens.

If you cold boot into linux, then e.g. run /sbin/reboot, linux should
boot through the BIOS etc., which should show its own messages before
starting grub. So if it's not, it's a bug either in linux or in the
BIOS. Do other OSes reboot well?

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