Bug#685219: grub-pc: grub installation failed(core.img too large)

[Petter Reinholdtsen]

[Tobias Unsleber]
> I got the error message:
> 
> /usr/sbin/grub-setup: warn: Your core.img is unusally large. It won't fit in the embedding area..

I ran into the same error when upgrading from 2.02+dfsg1-20+deb10u3 to
2.02+dfsg1-20+deb10u4 in Buster.

The /boot/grub/i386-pc/core.img file in 2.02+dfsg1-20+deb10u3 is 31084
bytes, and while I do no longer have the byte size for 2.02+dfsg1-20+deb10u4
around, it vas close to the same number and 32 blocks according to ls
-s.

I use RAID for / and ZFS on other file systems on the machine in question.
62 blocks are unused at the start of the disk.
-- 
Happy hacking
Petter Reinholdtsen