I have this same problem with Kubuntu Precise Beta1.
I installed Kubuntu Precise Beta1 successfully (using default partition setup with a single SATA drive) and rebooted. The desktop loads without error. I run apt-get update && apt-get upgrade and then reboot. Now the boot process stops:
…
Gave up waiting for root device. Common problems:
- Boot args (cat /proc/cmdline)
- Check root delay= (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/8e6f9262-9fbb-48fb-b1f1-a5ba22f25554 does not exist.
Dropping to a shell!
BusyBox v1.18.5 (Ubuntu 1:1.18.5-1ubuntu2) build in shell (ash)
Enter 'help' for a list of built-in commands
(initramfs) cat /proc/partitions
major minor #blocks name
I have this same problem with Kubuntu Precise Beta1. by-uuid/ 8e6f9262- 9fbb-48fb- b1f1-a5ba22f255 54 does not exist.
I installed Kubuntu Precise Beta1 successfully (using default partition setup with a single SATA drive) and rebooted. The desktop loads without error. I run apt-get update && apt-get upgrade and then reboot. Now the boot process stops:
…
Gave up waiting for root device. Common problems:
- Boot args (cat /proc/cmdline)
- Check root delay= (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/
Dropping to a shell!
BusyBox v1.18.5 (Ubuntu 1:1.18.5-1ubuntu2) build in shell (ash)
Enter 'help' for a list of built-in commands
(initramfs) cat /proc/partitions
major minor #blocks name
11 0 1048575 sr0
8 0 117220824 sda
252 0 117220823 dm-0