I am trying to get GRUB installed on my non-booting desktop computer, but I am encountering several errors. Other sources discussing these errors have ascribed them to either a lack of free disk space before the first partition (I have the requisite free space), or to a problem with /boot/grub/grub.cfg
(problem persists even after regenerating that file correctly).
I booted with a live USB and attempted to reinstall GRUB using the following commands, but I encounter an error that prevents it from working:
$ sudo mount /dev/sda1 /mnt $ sudo grub-install --root-directory=/mnt /dev/sda Installing for i386-pc platform. grub-install: warning: Attempting to install GRUB to a disk with multiple partition labels. This is not supported yet.. grub-install: warning: Embedding is not possible. GRUB can only be installed in this setup by using blocklists. However, blocklists are UNRELIABLE and their use is discouraged.. grub-install: error: will not proceed with blocklists.
However, /dev/sda
appears to be formatted correctly for installing grub:
$ sudo fdisk -l /dev/sda Disk /dev/sda: 111.8 GiB, 120034123776 bytes, 234441648 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disklabel type: dos Disk identifier: 0x8d91017b Device Boot Start End Sectors Size Id Type /dev/sda1 * 2048 234440703 234438656 111.8G 83 Linux $ blkid /dev/sda1 /dev/sda1: UUID="84e9ff65-c4ba-42eb-8a6d-ebc703fae1f7" TYPE="ext4" PARTUUID="8d91017b-01"
It has the standard 1 MiB free space at the beginning, and /dev/sda1
is formatted correctly. I have tried using grub-mkconfig
to rebuild the config file:
$ for f in proc sys dev dev/pts ; do sudo mount --bind /$f /mnt/$f ; done $ sudo chroot /mnt # grub-mkconfig -o /boot/grub/grub.cfg Generating grub configuration file ... Found linux image: /boot/vmlinuz-3.19.0-26-generic Found initrd image: /boot/initrd.img-3.19.0-26-generic Found linux image: /boot/vmlinuz-3.19.0-23-generic Found initrd image: /boot/initrd.img-3.19.0-23-generic Adding boot menu entry for EFI firmware configuration done
However, I still get the same error message when running grub-install
, whether in or out of the chroot
environment.
Booting the live USB in legacy mode, I get the same error; the only difference is the output of running grub-mkconfig
in the chroot
environment:
# grub-mkconfig -o /boot/grub/grub.cfg Generating grub configuration file ... Found linux image: /boot/vmlinuz-3.19.0-26-generic Found initrd image: /boot/initrd.img-3.19.0-26-generic Found linux image: /boot/vmlinuz-3.19.0-23-generic Found initrd image: /boot/initrd.img-3.19.0-23-generic Found memtest86+ image: /boot/memtest86+.elf Found memtest86+ image: /boot/memtest86+.bin Found Windows 7 (loader) on /dev/sdc1 done
How can I get grub installed correctly?