I dual boot Ubuntu 13.04 x64/Windows 8 x64 in UEFI mode. After downloading a kernel-update (Linux 3.8.0-23-generic), I can no longer boot into either OS. I have put around 10 hours into this already, and am about ready to throw in the towel and reformat.
- downloading the latest drivers for my nVidia GeForce GTX-460, but this didn't do a thing.
nvidia-current, nvidia-settingsand this likewise did nothing.
- using a much newer mainline kernel (3.9.x), and then purging it
- purging and reinstalling
apt-get remove --purge nvidia* nouveau*
xorg, unity, unity-2d, ubuntu-desktop, grub-efi-amd64, compiz
Here's a link to my
Any help is greatly appreciated!
Just in case it helps, I am able to get web access from the root shell prompt.
Having given up, I formatted my SSD
/dev/sda. Replication steps:
(i) I reinstalled Windows 8 Pro in UEFI. Installed Chipset/Nvidia Drivers in Windows.
(ii) Shrunk Windows 8 NTFS volume from
Disk Manager. Rebooted from
live CD and used
gparted to create
linux-swap partitions in empty sector.
/dev/sda1 = Windows Recovery NTFS
/dev/sda2 = EFI vfat
/dev/sda3 = ? mstres
Ubuntu 13.04 x64 on
/dev/sda4, and made
/dev/sda5 into a swap partition.
(iv) from a TTY,
# apt-get update # apt-get install linux-headers-`uname -r` nvidia-current
/dev/sda4 (/boot) has a boot flag in
Everything worked perfectly for 48 hours. I then did a general software update, which included an update to kernel
linux 3.8.0-25-generic. Later that day, plugged in speakers in Ubuntu, PC froze. Tried to reboot, but BOTH Windows 8 and Ubuntu boot to black screen.
Here is latest boot-repair: