[PVE-User] PVE 3.4 upgrade problem - grub can't be installed your core.img is unusually large

[Dietmar Maurer]

> # LANG=C grub-install /dev/sda
> Installing for i386-pc platform.
> grub-install: warning: your core.img is unusually large.  It won't fit 
> in the embedding area.
> grub-install: error: embedding is not possible, but this is required for 
> RAID and LVM install.
> 
> 
> # ls /boot/grub/i386-pc/*.img -l
> -rw-r--r-- 1 root root   512 feb 20 15:07 /boot/grub/i386-pc/boot.img
> -rw-r--r-- 1 root root 32281 feb 20 15:07 /boot/grub/i386-pc/core.img
> 
> It seems that now core.img is too large to fit into the firs 63 sectors.

Strange, it is much smaller here:

# ls -l /boot/grub/i386-pc/*.img
-rw-r--r-- 1 root root   512 Jan 29 11:18 /boot/grub/i386-pc/boot.img
-rw-r--r-- 1 root root 25485 Jan 29 11:18 /boot/grub/i386-pc/core.img

Do you have/use some special grub setup?