[Buildroot] grub.cfg "set fallback=XXX"
Peter Korsgaard
peter at korsgaard.com
Sat Oct 26 05:38:12 UTC 2019
>>>>> "Eldor" == Eldor Rødseth <er at systemsoft.no> writes:
> Hi!
> I have the following content in my buildroot/busybox/grub2-based EFI system grub.cfg-file:
> -------------------------------- start -------------------------
> set default=rootfs2
> set fallback=rootfs1
> set timeout=5
> menuentry "Alternating SW Image (rootfs) 1 - Linux 4.20.8 root at sda2" --id rootfs1 {
> linux /bzImage root=/dev/sda2 quiet loglevel=4 console=ttyS0,115200n8 id=rootfs1
> }
> menuentry "Alternating SW Image (rootfs) 2 - Linux 4.20.8 root at sda3" --id rootfs2 {
> linux /bzImage root=/dev/sda3 quiet loglevel=4 console=ttyS0,115200n8 id=rootfs2
> }
> menuentry "USB Installation Disk - Linux 4.20.8 root at sdb2" --id usb {
> linux /bzImage root=/dev/sdb2 rootwait quiet loglevel=4 console=ttyS0,115200n8 id=usb
> }
> -------------------------------- end -------------------------
> Now; my problem is that even if I completely wipe-out the /dev/sda3
> (i.e. --id rootfs2) to force a fallback to /dev/sda2 (i.e. --id
> rootfs1) the grub2 boot loader persistently only tries to boot from
> the corrupted entry (i.e. rootfs2). So ... what am I doing wrong ... ?
Sorry, don't know. Perhaps you will have more luck on the help-grub
list?
https://lists.gnu.org/mailman/listinfo/help-grub
--
Bye, Peter Korsgaard
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