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alyssaeliyah
Asked: 2019-02-02 00:38:59 +0800 CST

Grub Boot Loader Error Occured when Ubuntu and SlackWare is Installed

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I have a PC which has a pre-installed Ubuntu 18 OS. On the free partition I have installed Slackware 14.2 successfully.

After that I have decided to install GRUB, using the commands below:

chroot /mnt
lsblk
grub-install /dev/sda
grub-mkconfig -o /boot/grub/grub.cfg
exit
reboot

Running grub-mkconfig has one error on the end.

grub-probe unknown filesystem

After rebooting I can successfully boot to Slackware but not to Ubuntu. Ubuntu shows an error below:

error file '/boot/vmlinuz-4.15.0-29-generic' not found error: you need to load the kernel first
grub2 boot dual-boot slack

1 Answers

  1. Grub2 is the default bootloader in Ubuntu. Grub2 has the advantage that it brings up a menu on booting and it is possible to use the menu to dual boot with Ubuntu and other operating systems. Replace Slackware's default LILO bootloader with grub2. There are a few tutorials describing various ways of installing grub2 in the Slackware documentation, depending on what hardware you are using.

    Boot-Repair can solve the majority of bootsector/GRUB/MBR problems.

    1. Download boot-repair-disk.
    2. Write it on a live USB stick using UNetbootin USB creator application.
    3. Insert the Boot Repair disk and reboot the computer.
    4. Choose your language.
    5. Connect to the internet if possible.

    6. Click the Recommended repair (repairs most frequent problems) button.

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    7. Reboot the computer.

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