IBM 86884RX Installation Guide - Page 125

Partitions on IA-64 Linux, Windows 2003 Server.

Page 125 highlights

mptbase 80128 3 [mptscsih] Notice that the Broadcom driver, bcm5700, is used by only one Ethernet card. This is because we were using only one port during our tests and also that SuSE SLES 8 provides LVM support by default. Partitions on IA-64 Linux The EFI system implements a new way to work with partitions. That means that the IA-32 tools to manage partitions on Linux may not work properly. For example, if you run fdisk to see the content of a partition or disk, you don't see the real content of the disks. Modifying this partition can destroy the Linux installation. Example 4-6 shows the fdisk output for one of our test partitions. We had two disks configured on the system: one to run SuSE SLES 8, and the other to run Windows 2003 Server. Example 4-6 fdisk output of two EFI partitions Disk /dev/sda: 255 heads, 63 sectors, 1106 cylinders Units = cylinders of 16065 * 512 bytes Device Boot /dev/sda1 Start 1 End Blocks Id System 1107 8887079+ ee EFI GPT Disk /dev/sdb: 255 heads, 63 sectors, 1106 cylinders Units = cylinders of 16065 * 512 bytes Device Boot /dev/sdb1 Start 1 End Blocks Id System 1107 8887079+ ee EFI GPT The two disks included more than one partition. In fact, there were at least three partitions on each: one for EFI, one for the operating system boot images, and another for the data. As you can see in the example, fdisk doesn't see any of these partitions, but only a big partition of type EFI GP. Instead of using fdisk, use parted. The parted utility is included on the SuSE SLES base system. As shown in Example 4-7 on page 112, the parted output does not show the same information in the partition table, but recognizes the real partitions on the system. The parted utility can identify every partition on the partition table. Chapter 4. Installation 111

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Chapter 4. Installation
111
mptbase
80128
3 [mptscsih]
Notice that the Broadcom driver, bcm5700, is used by only one Ethernet card.
This is because we were using only one port during our tests and also that SuSE
SLES 8 provides LVM support by default.
Partitions on IA-64 Linux
The EFI system implements a new way to work with partitions. That means that
the IA-32 tools to manage partitions on Linux may not work properly.
For example, if you run
fdisk
to see the content of a partition or disk, you don’t
see the real content of the disks. Modifying this partition can destroy the Linux
installation.
Example 4-6 shows the fdisk output for one of our test partitions. We had two
disks configured on the system: one to run SuSE SLES 8, and the other to run
Windows 2003 Server.
Example 4-6
fdisk output of two EFI partitions
Disk /dev/sda: 255 heads, 63 sectors, 1106 cylinders
Units = cylinders of 16065 * 512 bytes
Device Boot
Start
End
Blocks
Id
System
/dev/sda1
1
1107
8887079+
ee
EFI GPT
Disk /dev/sdb: 255 heads, 63 sectors, 1106 cylinders
Units = cylinders of 16065 * 512 bytes
Device Boot
Start
End
Blocks
Id
System
/dev/sdb1
1
1107
8887079+
ee
EFI GPT
The two disks included more than one partition. In fact, there were at least three
partitions on each: one for EFI, one for the operating system boot images, and
another for the data. As you can see in the example, fdisk doesn’t see any of
these partitions, but only a big partition of type EFI GP.
Instead of using
fdisk
, use
parted
.
The parted utility is included on the SuSE SLES base system. As shown in
Example 4-7 on page 112, the parted output does not show the same
information in the partition table, but recognizes the real partitions on the system.
The parted utility can identify every partition on the partition table.