On Fri, 24 Feb 2023, Keith Bainbridge wrote:
Remember too that many distros have activated a grub setting that means it will
no longer search for other installations. Turn that off:
Edit the file in /etc/default named 'grub'. Add 'GRUB_DISABLE_OS_PROBER=false'
anywhere in the script. Run grub install, 'grub-install'
The op was a bit unclear but they need to boot first to do that.
To the OP, we need to know *exactly* what you see when you try to boot
so we can give help fixing.
Provided you're getting to at least Grub Rescue then it's probably just
a case of typing the right magic. Tell us what you see when you type ls.
If it's a bios error like 'no boot device found' then chances are you're
going to need to use a rescue disk to reinstall grub.>
A rescue disk might be a good idea anyway to inspect what is in the
disk. Trying to fix a boot is hard if you don't know exactly which
partition holds what.
