0

I upgraded a PC from 14.10 to 15.04 today with no errors, and rebooted. Now I'm stuck at GRUB. If I select 'Ubuntu' to boot, it reboots the machine. If I go to 'Advanced options for Ubuntu' and then select an older kernel, it reboots the machine. If I go to 'Advanced options for Ubuntu' and select '(recovery mode)', it reboots the machine. If I select 'Memory test (memtest86+)', it...actually runs a memtest (all clear, by the way, breathe easy my friends).

I can get a command line, but I just can't boot the OS. Do I reload the GRUB? Use boot-repair? I've been looking for the last few hours and have found a ton of posts kinda related, but not quite the same--and they all suggest something different.

EDIT: I have tried boot-repair, to no success.

2
  • Use boot-repair. – TheWanderer Jun 1 '15 at 23:29
  • Thanks @Zacharee1, but boot-repair did not solve the problem. – Nicomachus Jun 3 '15 at 0:33
0

Test this:

Create a bootable Ubuntu DVD/USB stick.

Boot from it and select Try Ubuntu without installing.

Once you get to the Ubuntu desktop, open a terminal.

Press Ctrl+Alt+T

Run it:

sudo -i
fdisk -l

Fdisk will tell you which is your /, suppose it is /dev/sda1, continue run:

umount /dev/sda1
fsck -y /dev/sda1
mount /dev/sda1 /mnt 
mount --bind /dev /mnt/dev
mount --bind /dev/pts /mnt/dev/pts
mount --bind /proc /mnt/proc
mount --bind /sys /mnt/sys
chroot /mnt
dpkg --configure -a
apt-get -f install
apt-get -m install
apt-get update
apt-get dist-upgrade
apt-get install --reinstall ubuntu-desktop deborphan
grub-install /dev/sda
grub-install --recheck /dev/sda
update-grub
deborphan
apt-get --purge remove $(deborphan)
deborphan --libdevel
apt-get --purge remove $(deborphan --libdevel)
deborphan --find-config
dpkg --purge $(deborphan --find-config)
apt-get autoremove
apt-get clean
exit 
umount /mnt/sys
umount /mnt/proc 
umount /mnt/dev/pts 
umount /mnt/dev
umount /mnt
reboot

Source

1

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.