= Ubuntu Server installs =
There used to be minimal installers and a python commandline utility to build KVM images. Not Enterprise enough, I suppose.
There is still a minimal ISO, hidden away:
* 20.04: http://archive.ubuntu.com/ubuntu/dists/focal/main/installer-amd64/current/legacy-images/netboot/mini.iso
= Notes on chroot'ing from SystemRescueCD =
Say you mount like so:
```
sudo mount /dev/sda1 /mnt
sudo mount --bind /dev /mnt/dev &&
sudo mount --bind /dev/pts /mnt/dev/pts &&
sudo mount --bind /proc /mnt/proc &&
sudo mount --bind /sys /mnt/sys
sudo chroot /mnt
```
But then running `grub-install` returns
```
grub-install: warning: EFI variables cannot be set on this system.
grub-install: warning: You will have to complete the GRUB setup manually.
```
You just need to run `grub-install --removable` to avoid that, having bootstrapped into this via EFI USB boot was how I got there myself certainly as per https://superuser.com/a/1749282