no clear way to restore system (grub, chroot)

[sHaggYcaT]

Describe the bug
No documentation, which works with silverblue, how to fix grub issues (and Fedora manuals don't work)
rpm-ostree and other tools are non-functional in the chroot envinronment.

No clear way how to recover system, and restore grub (efi or non-efi).

To Reproduce
Please describe the steps needed to reproduce the bug:

1. delete your grub partion, which belongs to your silverblue system
2. try to restore it: check documentation, and found nothing working.
3. try to use rpm-ostree and other specific silverblue tools while you're in the chroot env (using one of trees)

Expected behavior
Clear way how to restore your bootloader in the website documentation or in the man pages

[616b2f]

I guess it could be closed as a duplicate to #403

[travier]

See also https://discussion.fedoraproject.org/t/how-to-restore-grub-cfg-in-silverblue/105895