Recommended Partitioning Scheme
Unless you have a reason for doing otherwise, we recommend that you create the
following partitions for Itanium systems:
A /boot/efi/ partition (100 MB minimum) — the partition mounted on /boot/efi/
contains all the installed kernels, the initrd images, and ELILO configuration
files.
Warning
You must create a /boot/efi/ partition of type VFAT and at least 100 MB in size as the
first primary partition.
A swap partition (at least 256 MB) — swap partitions are used to support virtual
memory. In other words, data is written to a swap partition when there is not
enough RAM to store the data your system is processing.
If you are unsure about what size swap partition to create, make it twice the
amount of RAM on your machine. It must be of type swap.
Creation of the proper amount of swap space varies depending on a number of
factors including the following (in descending order of importance):
an additional 1x physical RAM for any amount above 2 GB, but never less than
32 MB. So, if: M = Amount of RAM in GB, and S = Amount of swap in GB,
then
If M < 2
S = M *2
Else
S=M + 2
Using this formula, a system with 2 GB of physical RAM would have 4 GB of
swap, while one with 3 GB of physical RAM would have 5 GB of swap.
Creating a large swap space partition can be especially helpful if you plan to
upgrade your RAM at a later time. For systems with really large amounts of
RAM (more than 32 GB) you can likely get away with a smaller swap partition
(around 1x, or less, of physical RAM).
A root partition (3.0 GB - 5.0 GB) — this is where "/" (the root directory) is
located. In this setup, all files (except those stored in /boot/efi) are on the root
partition. A 3.0 GB partition allows you to install a minimal installation; while a
5.0 GB root partition lets you perform a full installation, choosing all package
groups. 18.4.2. X86, AMD 64, and Intel@ 64 systems Unless you have a reason
for doing otherwise, we recommend that you create the following partitions for
x86, AMD64, and Intel® 64 systems:
A swap partition (at least 256 MB) — swap partitions are used to support virtual
memory. In other words, data is written to a swap partition when there is not
enough RAM to store the data your system is processing.
If you are unsure about what size swap partition to create, make it twice the
amount of RAM on your machine. It must be of type swap.
Creation of the proper amount of swap space varies depending on a number of
factors including the following (in descending order of importance):
an additional 1x physical RAM for any amount above 2 GB, but never less than
32 MB.
So, if:
M = Amount of RAM in GB, and S = Amount of swap in GB, then
If M < 2
S = M *2
Else
S = M + 2
Using this formula, a system with 2 GB of physical RAM would have 4 GB of
swap, while one with 3 GB of physical RAM would have 5 GB of swap. Creating
a large swap space partition can be especially helpful if you plan to upgrade your
RAM at a later time.
For systems with really large amounts of RAM (more than 32 GB) you can likely
get away with a smaller swap partition (around 1x, or less, of physical RAM).
A /boot/ partition (100 MB) — the partition mounted on /boot/ contains the
operating system kernel (which allows your system to boot Red Hat Enterprise
Linux), along with files used during the bootstrap process. Due to limitations,
creating a native ext3 partition to hold these files is required. For most users, a
100 MB boot partition is sufficient.
Tip
If your hard drive is more than 1024 cylinders (and your system was manufactured
more than two years ago), you may need to create a /boot/partition if you want the /
(root) partition to use all of the remaining space on your hard drive.
Tip
If you have a RAID card, be aware that some BIOSes do not support booting from the
RAID card. In cases such as these, the /boot/ partition must be created on a partition
outside of the RAID array, such as on a separate hard drive.
A root partition (3.0 GB - 5.0 GB) — this is where "/" (the root directory) is
located. In this setup, all files (except those stored in /boot) are on the root
partition. A 3.0 GB partition allows you to install a minimal installation; while a
5.0 GB root partition lets you perform a full installation, choosing all package
groups.
2.14.5. Adding Partitions
To add a new partition, select the new button. A dialog box appears (refer to
Figure 2.16, “Creating a New Partition”).
Note
You must dedicate at least one partition for this installation, and optionally more.
Mount Point:
Enter the partition's mount point. For example, if this partition should be the root
partition, enter /; enter /boot for the /boot partition, and so on. You can also use
the pull-down menu to choose the correct mount point for your partition. For a
swap partition the mount point should not be set - setting the filesystem type to
swap is sufficient.
File System Type:
Using the pull-down menu, select the appropriate file system type for this
partition.
Allowable Drives:
This field contains a list of the hard disks installed on your system. If a hard
disk's box is highlighted, then a desired partition can be created on that hard disk.
If the box is not checked, then the partition will never be created on that hard
disk. By using different checkbox settings, you can have Disk Druid place
partitions where you need them, or let Disk Druid decide where partitions should
go.
Size (MB):
Enter the size (in megabytes) of the partition. Note, this field starts with 100 MB;
unless changed; only a 100 MB partition will be created.
Additional Size Options:
Choose whether to keep this partition at a fixed size, to allow it to "grow" (fill up
the available hard drive space) to a certain point, or to allow it to grow to fill any
remaining hard drive space available.
If you choose fill all space up to (MB), you must give size constraints in the field
to the right of this option. This allows you to keep a certain amount of space free
on your hard drive for future use. Force to be a primary partition: Select whether
the partition you are creating should be one of the first four partitions on the hard
drive. If unselected, the partition is created as a logical partition.
OK:
Select OK once you are satisfied with the settings and wish to create the
partition.
Cancel:
Select cancel if you do not want to create the partition.
following partitions for Itanium systems:
A /boot/efi/ partition (100 MB minimum) — the partition mounted on /boot/efi/
contains all the installed kernels, the initrd images, and ELILO configuration
files.
Warning
You must create a /boot/efi/ partition of type VFAT and at least 100 MB in size as the
first primary partition.
A swap partition (at least 256 MB) — swap partitions are used to support virtual
memory. In other words, data is written to a swap partition when there is not
enough RAM to store the data your system is processing.
If you are unsure about what size swap partition to create, make it twice the
amount of RAM on your machine. It must be of type swap.
Creation of the proper amount of swap space varies depending on a number of
factors including the following (in descending order of importance):
- The applications running on the machine.
- The amount of physical RAM installed on the machine.
- The version of the OS.
an additional 1x physical RAM for any amount above 2 GB, but never less than
32 MB. So, if: M = Amount of RAM in GB, and S = Amount of swap in GB,
then
If M < 2
S = M *2
Else
S=M + 2
Using this formula, a system with 2 GB of physical RAM would have 4 GB of
swap, while one with 3 GB of physical RAM would have 5 GB of swap.
Creating a large swap space partition can be especially helpful if you plan to
upgrade your RAM at a later time. For systems with really large amounts of
RAM (more than 32 GB) you can likely get away with a smaller swap partition
(around 1x, or less, of physical RAM).
A root partition (3.0 GB - 5.0 GB) — this is where "/" (the root directory) is
located. In this setup, all files (except those stored in /boot/efi) are on the root
partition. A 3.0 GB partition allows you to install a minimal installation; while a
5.0 GB root partition lets you perform a full installation, choosing all package
groups. 18.4.2. X86, AMD 64, and Intel@ 64 systems Unless you have a reason
for doing otherwise, we recommend that you create the following partitions for
x86, AMD64, and Intel® 64 systems:
A swap partition (at least 256 MB) — swap partitions are used to support virtual
memory. In other words, data is written to a swap partition when there is not
enough RAM to store the data your system is processing.
If you are unsure about what size swap partition to create, make it twice the
amount of RAM on your machine. It must be of type swap.
Creation of the proper amount of swap space varies depending on a number of
factors including the following (in descending order of importance):
- The applications running on the machine.
- The amount of physical RAM installed on the machine.
- The version of the OS.
an additional 1x physical RAM for any amount above 2 GB, but never less than
32 MB.
So, if:
M = Amount of RAM in GB, and S = Amount of swap in GB, then
If M < 2
S = M *2
Else
S = M + 2
Using this formula, a system with 2 GB of physical RAM would have 4 GB of
swap, while one with 3 GB of physical RAM would have 5 GB of swap. Creating
a large swap space partition can be especially helpful if you plan to upgrade your
RAM at a later time.
For systems with really large amounts of RAM (more than 32 GB) you can likely
get away with a smaller swap partition (around 1x, or less, of physical RAM).
A /boot/ partition (100 MB) — the partition mounted on /boot/ contains the
operating system kernel (which allows your system to boot Red Hat Enterprise
Linux), along with files used during the bootstrap process. Due to limitations,
creating a native ext3 partition to hold these files is required. For most users, a
100 MB boot partition is sufficient.
Tip
If your hard drive is more than 1024 cylinders (and your system was manufactured
more than two years ago), you may need to create a /boot/partition if you want the /
(root) partition to use all of the remaining space on your hard drive.
Tip
If you have a RAID card, be aware that some BIOSes do not support booting from the
RAID card. In cases such as these, the /boot/ partition must be created on a partition
outside of the RAID array, such as on a separate hard drive.
A root partition (3.0 GB - 5.0 GB) — this is where "/" (the root directory) is
located. In this setup, all files (except those stored in /boot) are on the root
partition. A 3.0 GB partition allows you to install a minimal installation; while a
5.0 GB root partition lets you perform a full installation, choosing all package
groups.
2.14.5. Adding Partitions
To add a new partition, select the new button. A dialog box appears (refer to
Figure 2.16, “Creating a New Partition”).
Note
You must dedicate at least one partition for this installation, and optionally more.
Mount Point:
Enter the partition's mount point. For example, if this partition should be the root
partition, enter /; enter /boot for the /boot partition, and so on. You can also use
the pull-down menu to choose the correct mount point for your partition. For a
swap partition the mount point should not be set - setting the filesystem type to
swap is sufficient.
File System Type:
Using the pull-down menu, select the appropriate file system type for this
partition.
Allowable Drives:
This field contains a list of the hard disks installed on your system. If a hard
disk's box is highlighted, then a desired partition can be created on that hard disk.
If the box is not checked, then the partition will never be created on that hard
disk. By using different checkbox settings, you can have Disk Druid place
partitions where you need them, or let Disk Druid decide where partitions should
go.
Size (MB):
Enter the size (in megabytes) of the partition. Note, this field starts with 100 MB;
unless changed; only a 100 MB partition will be created.
Additional Size Options:
Choose whether to keep this partition at a fixed size, to allow it to "grow" (fill up
the available hard drive space) to a certain point, or to allow it to grow to fill any
remaining hard drive space available.
If you choose fill all space up to (MB), you must give size constraints in the field
to the right of this option. This allows you to keep a certain amount of space free
on your hard drive for future use. Force to be a primary partition: Select whether
the partition you are creating should be one of the first four partitions on the hard
drive. If unselected, the partition is created as a logical partition.
OK:
Select OK once you are satisfied with the settings and wish to create the
partition.
Cancel:
Select cancel if you do not want to create the partition.
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