Red Hat ENTERPRISE LINUX 5 - VIRTUAL SERVER ADMINISTRATION, Руководство по установке

Страница: 27 / 388

Preparing for FTP and HTTP installation
9
To copy the files from the installation DVD or CD-ROMs to a Linux machine which acts as an
installation staging server, perform the following steps:
• Create an iso image from the installation disk(s) using the following command (for DVDs):
dd if=/dev/ dvd of= /location/of/disk/space/ RHEL5.iso
where
dvd
refers to your DVD drive device.
For instructions on how to prepare a network installation using CD-ROMs, refer to the instructions
on the
README-en
file in
disk1
.
2.5.1. Preparing for FTP and HTTP installation
For FTP and HTTP installation, the iso image or images should be mounted via loopback in the
publicly available directory, in the following manner:
• For DVD:
mount -o loop /location/of/disk/space/ RHEL5.iso /publicly/available/
directory /
In this case
/publicly/available/directory
will be a directory that is shared via FTP or
HTTP.
• For CDROMs:
mount -o loop /location/of/disk/space/ disk X .iso /publicly/available/
directory/ disk X /
Again,
/publicly/available/directory
will be a directory that is shared via FTP or HTTP. Do
the above for each of the CDROM iso images, for example:
mount -o loop /var/isos/disk1.iso /var/www/html/rhel5-install/disk1/
Example 2.1. Making a Red Hat Enterprise Linux installation CD available on a HTTP server
Next make sure that the
/publicly/available/directory
directory is shared via FTP or HTTP,
and verify client access. You can check to see whether the directory is accessible from the server
itself, and then from another machine on the same subnet that you will be installing to.
2.5.2. Preparing for an NFS install
For NFS installation it is not necessary to mount the iso image. It is sufficient to make the iso image
itself available via NFS. You can do this by moving the iso image or images to the NFS exported
directory:
• For DVD:
mv /location/of/disk/space/ RHEL5.iso /publicly/available/directory/
• For CDROMs:
mv /location/of/disk/space/ disk*.iso /publicly/available/directory/