Red Hat NETWORK 3.6 -, Reference Manual

Page: 105 / 198

Chapter 6. Red Hat Network Website 93
Important
Although file preservation is useful, it does have limitations. First, each list is limited to a total size of
1 MB. Further, special devices like
/dev/hda1
and
/dev/sda1
are not supported. Finally, only actual
file and directory names may be entered. No regular-expression wildcards can be included.
When finished, you may include the file preservation list in the kickstart profile to be used on systems
containing those files. Refer to Section 6.4.10.3 Creating Kickstarts for precise steps.
6.4.10.11. Building Bootable Kickstart ISOs
Copy the contents of
/isolinux
from the first CD-ROM of the target distribution. Then edit the
isolinux.cfg
file to default to ’ks’. Change the ’ks’ section to look like this:
label ks
kernel vmlinuz
append text ks={url} initrd=initrd.img lang= devfs=nomount ramdisk_size=16438 \
{ksdevice}
The URL can be obtained from the
Kickstart Details
page. It will look something like this:
http://my.sat.server/kickstart/ks/org/1271287x2c4682f33b87ed1d4dbea8/label/my-rhel3-as-ks
IP addressed-based kickstart URLs will look something like this:
http://my.sat.server/kickstart/ks/mode/ip_range
The kickstart distribution selected by the IP range should match the distribution you are building from,
or errors will occur. {ksdevice} is optional, but looks like:
ksdevice=eth0
It is possible to change the distribution for a kickstart profile within a family, such as RHEL AS3 to
RHEL ES3, by specifying the new distribution label. Note that you cannot move between versions
(2.1 to 3) and between updates (U1 to U2).
Next, you may customize
isolinux.cfg
further for your needs, such as by adding multiple kickstart
options, different boot messages, shorter timeout periods, etc.
Then make the ISO, as described in the
Making an Installation Boot CD-ROM section of the Red Hat
Enterprise Linux 3 Installation Guide . Or by issuing the command:
mkisofs -o file.iso -b isolinux.bin -c boot.cat -no-emul-boot -boot-load-size 4 \
-boot-info-table -R -J -v -T isolinux/
Note that
isolinux/
is the relative path to the directory containing the isolinux files you got from
the distribution cd, while
file.iso
is the output iso file, put into the current directory.
You may then burn the ISO to CD-ROM. To use the disc (assuming you left the label for the kickstart
boot as ’ks’), you should boot and type "ks" at the prompt. When you hit enter, the kickstart should
begin.