Linux Tips

As of tomorrow's daily builds, GRUB 2 will be the default boot loader for new installations. They do not expect to be changing the boot loader for existing installations, at least not at this time; this is an inherently risky operation. (Remember that they don't even automatically reinstall the boot loader when they upgrade to new versions of GRUB Legacy, let alone when changing to a complete reimplementation.) However, if you wish to upgrade your system to GRUB 2, then see this page for instructions: http://blog.dipinkrishna.info/2009/06/install-and-test-grub2.html

It was discovered on Jaunty. After installing grub2, it modifies the currently installed grub 0.97 menu.lst configuration file to chainload grub2 to allow one to test grub2 before committing to it as the default boot loader. However, grub2 modifies the menu.lst entry and adds the incorrect command to select the partition to boot from to chain load grub2. It uses: root 7cce46fe-4883-44bb-939b-58b9483f2739 and should be: uuid 7cce46fe-4883-44bb-939b-58b9483f2739 I suspect it was originally correct before grub 0.97 has UUID support added. To test and install grub2 correctly see here.

"Grub2" is a replacement for grub, which has been claiming to be the replacement for it for some years. Switching to "grub2" would bring support for newer systems, internationalisation, updates and bug fixes etc. So it's clear we would like to switch the default bootloader to grub2...lets try "install and test grub2". Testing grub2 If you are running Jaunty Jackalope or later, grub2 can be installed in parallel with, and as a chainloaded sub-bootloader of, your existing grub installation. This allows you to boot actually with grub and then select grub2 from the menu. Then you can confirm grub2 works correctly before electing to switch to it formally. Note: If you do this from Jaunty YOUR MACHINE WILL NOT BOOT. Read the instructions about changing "root" to "uuid" below. Though it is unlikely you will have any issues it is always recommend taking precautions before attempting a bootloader update. It is recommended that you have an up...