Apr
19
Posted on 19-04-2010

Introduction ~ GRUB is perfect boot loader for Linux/Unix system! GRUB-2 supports several features that are important for every system admin.

* Platform support – GRUB 2 is intended to work across a wider range of architectures.
* Partition tables – GRUB-2 supports MBR partitioning scheme and GUID Partition Table (GPT).
* RAID and LVM – Now GRUB is supports both redundant array of independent disks (RAID) and Logical Volume Manager (LVM).
* File system support – GRUB 2 supports some additional non-Linux file systems, such as Apple’s Hierarchical File System Plus, NTFS  and  ZFS file systems…

* Configuring GRUB 2 –

GRUB 2 configuration file is different from legacy GRUB….

The default location for the GRUB 2 configuration file is /boot/grub/grub.cfg

* Sample GRUB 2 configuration file

root@me:~# cat /boot/grub/grub.cfg

set timeout=10
set default=0

menuentry “Ubuntu, Linux 2.6.31-20-generic” {
set quiet=1
insmod ext2
set root=(hd0,6)
search –no-floppy –fs-uuid –set 7699852c-2a04-4da2-82e8-a69969f16bf2
linux /boot/vmlinuz-2.6.31-20-generic root=UUID=7699852c-2a04-4da2-82e8-a69969f16bf2 ro quiet splash
initrd /boot/initrd.img-2.6.31-20-generic
}

Thanks,
Arun Bagul

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