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Re: failsafe booting..

From: Alessandro Rubini
Subject: Re: failsafe booting..
Date: Thu, 5 Oct 2000 13:10:38 +0200


> ok this is what i was looking for, from the lilo man page :-
>     -R command line

I don't think this is what you are looking for. This sets the command
line, not the default kernel (I think, didn't check).

In order to do what you want, you'll need a "mv" command inside grub:
thus the menu entry that boots the test kernel will switch configuration
file before booting the kernel. On success, the switch back will
be performed by user space.

I didn't look at filesystem code in grub, but I don't think it should
be too difficult to implement "mv". The only issue I see is that
currently FS access is read-only, while in this case you require write
access, and this can introduced non-trivial issues when you deal with it.

Hope this helps

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