set fallback=XXX

[Eldor Rødseth]

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@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@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@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 ... ?

 

Med vennlig hilsen
Eldor Rødseth
Tlf. +47 95086888