I’m trying to update grub after an install of Lubuntu 24.04.3 LTS, running ‘sudo update-grub’ doesn’t work on the “try lubuntu” environment on the thumbdrive i downloaded it with. after looking online people say i have to mount a partition and chroot /mnt but i get an error saying “chroot: failed to run command ‘/bin/bash’: No such file or directory” so do i have to mount /bin/bash to /mnt?