Sunday, May 24, 2009

Difference between LILO vs. GRUB..??

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In general, LILO works similarly to GRUB except for three major differences:

· It has no interactive command interface.

· It stores information about the location of the kernel or other operating system it is to load on the MBR.

· It can’t read ext2 partitions.

The first point means the command prompt for LILO is not interactive and only allows one command with arguments.

The last two points mean that if you change LILO's configuration file or install a new kernel, you must rewrite the Stage 1 LILO boot loader to the MBR by issuing the /sbin/lilo -v -v command. This is more risky than GRUB's method, because a misconfigured MBR leaves the system unbootable. With GRUB, if the configuration file is erroneously configured, it will simply default to its command line interface.

1. LILO and GRUB: Boot Loaders Made Simple

LILO (Linux Loader) and GRUB (GRand Unified Bootloader) are both configured as a primary boot loader (installed on the MBR) or secondary boot loader (installed onto a bootable partition). Both work with supporting operating systems such as Linux, FreeBSD, Net BSD, and OpenBSD. They can work with unsupported operating system, such as Microsoft Windows XP, in the configuration file. Both allow users—root users—to boot into single-user-mode.

2. LILO and GRUB: Boot Loaders Made Simple

LILO (Linux Loader) and GRUB (GRand Unified Bootloader) are both configured as a primary boot loader (installed on the MBR) or secondary boot loader (installed onto a bootable partition). Both work with supporting operating systems such as Linux, FreeBSD, Net BSD, and OpenBSD. They can work with unsupported operating system, such as Microsoft Windows XP, in the configuration file. Both allow users—root users—to boot into single-user-mode.

LILO

LILO comes as standard on all distributions of Linux. To work with LILO an administrator edits the file /etc/lilo.conf to set a default partition to boot, the time-out value, which choices should appear in a menu, kernel parameters, which partition to mount as the root partition, whether or not to initially load a RAM disk, where LILO should be installed, and other information. The administrator must then update the loader by running the LILO command.

  1. Type exit, and then press ENTER to exit the Recovery Console.
  2. Restart the computer, and then finish the Windows Vista upgrade operation.
  3. Reinstall the GRUB boot manager program.

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