I had my /boot on a USB, which was configured as a physical volume with two logical volumes. My root disk is fine, but I need to recreate the USB with grub and /boot, including kernel(s) and initramfs. Anyone have a suggesting of what path I might follow?


Boot into a live system. Open you system partition in Nautilus and copy the path (ctrl + L shows you the path). Then: sudo gedit [path you copied]/etc/fstab. In the file that opens, remove the line with /boot in the middle, save and close. Then unmount the partition in Nautilus.


sudo grub-install /dev/sda
sudo update-grub

Assuming your system partition is /dev/sda. You can easily find this out by entering sudo fdisk -l. It will give you some output with one for every physical drive (like your HDD or your USB stick) and something like Disk /dev/sda: in the beginning of every block.

  • That's missing initramfs though. Edit your answer to include that – Sergiy Kolodyazhnyy Oct 10 '15 at 7:21
  • Ya, I neither have a kernel nor initramfs. All that'll do is give me grub at the start of the disk, and the /boot/grub directory. I do know how to pivot into a system from a live-CD. Is there some way I can use the /boot on the live CD? – Diagon Oct 10 '15 at 7:33
  • You can't simply copy the folder. – UTF-8 Oct 10 '15 at 11:06

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