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Re: Booting into a different entry without changing grub.conf

From: Mark Ryden
Subject: Re: Booting into a different entry without changing grub.conf
Date: Wed, 9 Apr 2008 16:07:08 +0300


 I tried it but it did not work. could it be that I was wrong somewhere?
below is the grub.conf.

It was with  default=1, and I changed it to default=2.
I added savedefault=1 to the second error (see below).
I rebooted, got panic, again rebooted, and also in the second
time it rebooted to the 2 , and got again a panic
Any ideas?
following is grub.conf


title Fedora (
        root (hd0,1)
        kernel /boot/vmlinuz- ro root=LABEL=/
        initrd /boot/initrd-
title myFedora (2.6.23)
        root (hd0,1)
        kernel /boot/myvmlinz_2_6_23_1 ro root=LABEL=/
        initrd /boot/myinitrd-
title netdev (2.6.23)
        root (hd0,1)
        kernel /boot/vmlinuzNetdev ro root=LABEL=/
        initrd /boot/netdev.img


On Wed, Apr 9, 2008 at 10:19 AM, Pavel Roskin <address@hidden> wrote:
> On Wed, 2008-04-09 at 10:01 +0300, Mark Ryden wrote:
>  > Hello,
>  >
>  > I have in my grub.conf this entry: default=0.
>  grub.conf was used in GRUB 1 only, which should be discussed in
>  address@hidden  GRUB 2 uses grub.cfg.
>  > This entry has the original kernel and initrd which came with my Linux
>  > distribution.
>  > Instead of booting to the first entry (default=0) , I want to reboot into 
> the
>  > second entry (which will point to a linux kernel I had build myself
>  > for tests).
>  > ; but **withouth** changing the (default=0) entry
>  > in grub.conf to the second grub entry (which contains paths to images which
>  > are selected for boot when default=1); this because in
>  > case I will have a panic when booting (which sometimes occur, for
>  > various reasons)
>  > , I want to be able to reboot the machine immedaitely back to default=0.
>  > (In order that I will NOT have the panic again)
>  > Is it possible ?
>  GRUB 1 has "savedefault" for that.  Adding "savedefault 0" to the second
>  entry would tell grub to boot the first entry next time.  GRUB 2 doesn't
>  have such facility yet.
>  --
>  Regards,
>  Pavel Roskin
>  _______________________________________________
>  Grub-devel mailing list
>  address@hidden

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