Linux SUPER hard to repair boot issues
139128
Please do not forget to make your BIOS boot on sda6/EFI/ubuntu/shimx64.efi file!
129105
Can't boot, no grub, "alloc magic is broken"
8914
Grub rescue - error: unknown filesystem
145585
boot-repair windows not listed
69265
How to recover boot options after deleting them with EasyBCD?
124303
Remove GRUB and keep a Linux system
95149
How to clean up bootloaders & UEFI entries from other installs?
3776
How to restore a system after accidentally removing all kernels?
73121
How can I force Ubuntu to boot on a stuck boot menu?
83727
Grub rescue no such device, also cannot access BIOS
18475
Reverting to previous kernel to avoid booting the new one that breaks my system
113006
Grub rescue after removing Ubuntu?
32120
Boot partition full, failing to delete old kernels. Broken packages
60507
Disk Utility (recovery mode) stuck at loading
79817
How do I troubleshoot random rebooting?
39651
GRUB Help and Reinstalling Ubuntu
71825
How to secure grub recovery mode