Red Hat Enterprise Linux 4 INSTALLATION

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Posted By: admin January 6, 2010

This page gives basic instructions on how to install Redhat Linux software on a new host

Two types of Installations:

  1. Local:     Through CDROM or Hard disk
  2. Network:     Through FTP, NFS, HTTP

Procedure to setup NFS server (RHEL4) for nfs installation:

  1. Make a directory /RedHat/RPMS in your server.
  2. Copy content of RPMS folder from all installation disks to /RedHat/RPMS directory.
  3. Copy RedHat folder from first CD to the /RedHat/ folder.
  4. Set appropriate permissions. eg: “chmod -R 755 /RedHat”
  5. In the /etc/exports file set permissions so that others could access the /RedHat folder.
  6. echo “/RedHat *(ro)” >> /etc/exports

Selection of installtion using NFS

  1. Boot the client host using the 1st CD or a bootup disk.
  2. At the time of installation, use text askmethod to prompt to choose the media/network source for installation.
  3. Now we could select cdrom or nfs server as required.
  4. We will have to give the ip of the nfs server and the folder “/RedHat” to perform nfs installation.

Every peripheral device is identified as a file.

Hard disk/partition identification

  1. Disk 1, Partition 1 = /dev/hda1
  2. Disk 1, Partition 2 = /dev/hda2
  3. Disk 2, Partition 1 = /dev/hdb1
  4. Disk 2, Partition 2 = /dev/hdb2
  5. Floppy Disk = /dev/fd0
  6. Serial drive = /dev/ttys0
  7. SCSI = /dev/sda
  8. Monitor = /dev/console

BOOT DISK: Boot disk could be created by copying /media/cdrom/image/boot.iso to a new CD.


Additional notes
The following should always be in the / partition:

(a) /dev
(b) /bin
(c) /etc
(d) /lib

Memory requirement

  • 64MB RAM is required for text mode installation
  • 128MB RAM is required for graphical mode installation

Terminals

  1. ALT + F1 : Displays installation in text mode
  2. ALT + F2 : Certain commands such as fdisk, etc could be executed.
  3. ALT + F3 : Kernal massager gets displayed
  4. ALT + F7 : Where the actual graphical installation happens.

Note: Giving grub password restricts users from going to different run level a boot-up.

SELINUX: If this is enabled at the installation, it will provide higher security and will make the required configuration changes.

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