1. The default boot loader is GRUB, and the first part of it is installed in the MBR of the default drive. Normally, the BIOS should automatically start the boot loader, with a message similar to:
Booting Red Hat Enterprise Linux Server (2.6.18-8.el5) in 5 seconds...
2. For an older PC, unless it's located within the first 1024 cylinders of the hard disk, the BIOS can't find your boot loader that is why the /boot partition installed is normally a primary partition.
3. The workaround for this problem is using logical block addressing, which is also recognized as LBA mode.
LBA mode reads "logical" values for the cylinder, head, and sector, which allows the BIOS to "see" a larger disk drive.
For multiple hard drives:
Here is the caveat:
a. For IDE (PATA) hard drives, the /boot directory must be on a hard drive attached to the primary IDE controller.
b. For all SCSI hard drives, the /boot directory must be located on a hard drive with SCSI ID 0 or ID 1.
c. For a mix of hard drives, the /boot directory must be located on either the first IDE drive or a SCSI drive with ID 0.
No comments:
Post a Comment