IMPORTANT! When you create, move, or resize a bootable partition, the partition must begin below the boot code boundary specified in the above table for the operating system to boot. With the exception of DOS 6.22 (or earlier), partitions beyond 8 GB are visible to the current operating system. For more information, see “Understanding the BIOS 1,024 Cylinder (8 GB) Limit” and “Understanding the 2 GB Boot Code Boundary” in Help. The disk map in the PartitionMagic main window displays indicators for the 2 GB boot boundary and the 1024 cylinder limit.
PartitionMagic displays a warning if you attempt to create, move, or resize a bootable partition outside of the 2 GB boot code boundary. If you continue with the operation, under some operating systems you may not be able to boot or see the partition. In either case, you can resolve the problem by moving the partition back within the boot code boundary with the PartitionMagic rescue disks.
If your system includes SCSI disks and you create a partition before a bootable Linux partition, Linux may no longer be bootable. In this situation, you may need to create Linux rescue disks, boot from the rescue disks, and repair the Linux boot information on the Linux partition.
Some I/O cards (typically older RAID cards) only provide access to the first 8 GB of a disk under DOS. Consequently, if you resize the operating system partition beyond 8 GB and it becomes unbootable, the PartitionMagic rescue disks may not allow you to manipulate partitions on that drive. You should be cautious about resizing any operating system partition beyond 8 GB.
Installing a New Operating System
If you install multiple operating systems, you must follow the steps below for each of them.
1Disable BootMagic if you have it installed. See “Disabling BootMagic” on page 99.
2Create PartitionMagic rescue disks. See “Creating Rescue Disks” on page 5.
3Make a new partition and set it active (if you are installing Linux to a primary partition [Linux Ext2/Ext3], then it is necessary to set the partition active; however, it is not necessary to set the partition active if you are installing Linux to the first logical partition on the hard disk.)
See “Setting an Active Partition” on page 65.
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