Arch Linux

Description:

Hi guys, I do regular rebuilds of grub for unit testing and since around 2021-02-15 its been generating 100M+ .img files.

There is another reference to this on linuxquestions.org from a few days ago:
https://www.linuxquestions.org/questions/slackware-14/grub-error-in-latest-slackware-current-4175690623/page2.html#post6221162


Additional info:
* package version(s)
since 2.04-9, since 2021-02-15

Steps to reproduce:
makepkg -s
install grub package

# pacman -U grub-2:2.04-9-x86_64.pkg.tar.zst
Packages (1) grub-2:2.04-9

Total Installed Size: 930.69 MiB
Net Upgrade Size: 0.00 MiB

root# ls -la /usr/lib/grub/i386-pc/*.img /usr/lib/grub/i386-efi/*.img /usr/lib/grub/x86_64-efi/*.img
-rw-r--r-- 1 root root 64836 Feb 20 08:20 /usr/lib/grub/i386-efi/kernel.img
-rw-r--r-- 1 root root 134481116 Feb 20 08:20 /usr/lib/grub/i386-pc/boot_hybrid.img
-rw-r--r-- 1 root root 134481116 Feb 20 08:20 /usr/lib/grub/i386-pc/boot.img
-rw-r--r-- 1 root root 134481116 Feb 20 08:20 /usr/lib/grub/i386-pc/cdboot.img
-rw-r--r-- 1 root root 134480092 Feb 20 08:20 /usr/lib/grub/i386-pc/diskboot.img
-rw-r--r-- 1 root root 29276 Feb 20 08:20 /usr/lib/grub/i386-pc/kernel.img
-rw-r--r-- 1 root root 134488284 Feb 20 08:20 /usr/lib/grub/i386-pc/lnxboot.img
-rw-r--r-- 1 root root 134479612 Feb 20 08:20 /usr/lib/grub/i386-pc/lzma_decompress.img
-rw-r--r-- 1 root root 134481116 Feb 20 08:20 /usr/lib/grub/i386-pc/pxeboot.img
-rw-r--r-- 1 root root 101920 Feb 20 08:20 /usr/lib/grub/x86_64-efi/kernel.img


This causes installations to fail... here is an easy reproducer...
root# /usr/bin/grub-mkimage --prefix /boot/grub --format i386-pc-eltorito --output /tmp/eltorito.img biosdisk iso9660
/usr/bin/grub-mkimage: error: Decompressor is too big.