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Re: After 3 reboots boot alternative system ?

From: Brett Russ
Subject: Re: After 3 reboots boot alternative system ?
Date: Wed, 10 Sep 2003 00:38:17 -0400
User-agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.4) Gecko/20030612

Ulrich Hochholdinger wrote:

On Mon, Sep 08, 2003 at 01:40:13PM +0200, Andreas Jung wrote:
I was wondering if any boot manager for Linux has the following option:
* Boot an alternative system if n reboots already happend.
With Lilo you can boot with "lilo -R command line" which is a once only
boot of this command line,
This feature is, at the moment, missing in grub and I would also like to
see this in grub.

I use the Redhat version of GRUB which does have support for this. They patched it to accept a "--once" option to the 'savedefault' command to allow boot once on a menu entry.

I *think* the maintainer of GRUB (and possibly others) consider this a hack, but it works for me.

One way the bootloader/BIOS/OS could communicate would be through CMOS memory (are there any free locations?), but I think you're going to need a watchdog timer to get timeout protection.


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