Help, Ubuntu 11.10 won't boot!!
3 min read
3 min read
Today I tried to start the new Ubuntu 11.10 from the live CD on the old desktop computer of my girlfriend. Her computer is quite slow and the old WinXP installation broken. So why not take the occasion and try Ubuntu :).
quiet splash nomodeset. What is this "nomodeset"?
nomodesetSo in order to be able to install Ubuntu I booted the system from the live CD. At startup make sure you press the down-key multiple times to enter the classic live CD menu with the options for either "just run" the system, install it or perform some memory and disk checks. At the same time, when pressing F6, there is the possibility to check the "nomodeset" boot option. Then try to run the system, it should work.
The newest kernels have moved the video mode setting into the kernel. So all the programming of the hardware specific clock rates and registers on the video card happen in the kernel rather than in the X driver when the X server starts.. This makes it possible to have high resolution nice looking splash (boot) screens and flicker free transitions from boot splash to login screen. Unfortunately, on some cards this doesnt work properly and you end up with a black screen. Adding the nomodeset parameter instructs the kernel to not load video drivers and use BIOS modes instead until X is loaded.
linux /boot/vmlinuz-....generic root=UUID=... ro quite splash nomodesetThen press F10 and the system should boot.
GRUB_DEFAULT=0Save the file and execute a
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash nomodeset"
sudo upgrade-grub. Then your computer should boot normally next time. Here's a link I found quite useful of some hints to perform after installing Ubuntu: http://www.techdrivein.com/2011/10/15-things-i-did-after-installing-new.html.