Bootloader Fails to Install?

Sometimes there are good old things that we just can't get away from. Something about the continued functionality inspite of the "newer better" hype cycles in technology. I digress though, so onto the meat of this post.

There is an issue that has plagued an old laptop of mine for a while. It happened when I would change the HardDrive in the machine. (Think cycling through Windows 7, 8, 10, Ubuntu, Fedora, Debian, etc)

Each time the HD was switched up the bootloader would cease to work. Worse yet a fresh install wouldn't work. DunDunDun! Hardware Issues! Turns out the nvram was having issues.

Luckily Linux has this handy command line tool efibootmgr to save the day. Grab a Live Cd/USB and Extra entries can be deleted by command like  sudo efibootmgr -b entry_in_nvram -B  .

You might also want to remove excessive dump files using a command such as  sudo rm /sys/firmware/efi/efivars/dump-* 


If needed check your OS for how to regenerate your boot entries after reboot.

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