I helped my friend update his Dell precision T3500 from Ubuntu 10.04 to 10.10 today. After reboot, the system stopped and left me the following message
udevd-word[169]: '/sbin/modprobe -bv pci:v00008086d00002822sv00001028sd00000293bc01sc04i00' unexpected exit with status 0x0009 Gave up waiting for root device. Common problems: - Boot args (cat /proc/cmdline) - Check rootdelay= (did the system wait long enough?) - Check root= (did the system wait for the right device?) - Missing modules (cat /proc/modules; ls /dev) ALERT: /dev/disk/by-uuid/.....(a uuid here)..... does not exist. Dropping to a shell! BusyBox v1.15.3 (Ubuntu 1:1.15.3-1ubuntu5) built-in shell (ash) (initramfs)
After some googling, I finally found this post as a workaround, and #35 gave a detailed instruction.
I copy the commands here:
sudo cp /boot/grub/grub.cfg /boot/grub/grub.cfg.orig sudo cp /etc/default/grub /etc/default/grub.orig sudo vi /etc/default/grub # < # GRUB_CMDLINE_LINUX="" # < GRUB_CMDLINE_LINUX="pci=nocrs" # --- # > GRUB_CMDLINE_LINUX="" sudo update_grub
Then reboot and enjoy 10.10.