From Alpine Linux


   alp:/# updqate-grub2
   /bin/ash: updqate-grub2: not found

And package absent


alp:/# grub-mkconfig -o /boot/grub/grub.cfg
Generating grub configuration file ...
Found linux image: /boot/vmlinuz-lts
Found initrd image: /boot/initramfs-lts
Warning: os-prober will be executed to detect other bootable partitions.
Its output will be used to detect bootable binaries on them and create new boot entries.
error: syntax error.
error: Incorrect command.
error: syntax error.
Syntax error at line 126
Syntax errors are detected in generated GRUB config file.
Ensure that there are no errors in /etc/default/grub
and /etc/grub.d/* files or please file a bug report with
/boot/grub/ file attached.

— Preceding unsigned comment added by Vul (talkcontribs) 04:43, 7 November 2022‎

The command in your 1st section is most certainly misspelled at a minimum.
zcrayfish (talk) 03:01, 14 August 2023 (UTC)