Thursday, December 30, 2010

Installing Redhat in various ways

There are multiple methods and options available when installing Redhat. Here are just a few options and how to perform them.
VNC
  1. Insert the installation DVD and boot the system
  2. At the installation prompt, hit [TAB] to modify the boot options
  3. At the end of the boot command, enter vnc and hit enter to start the boot process
  4. The process will begin walking through setting up the network, then prompt you to connect using a vnc client
  5. Use vncviewer (or some other client) and connect via IP to 192.168.10.1:1 (note the :1 at the end)
Network install
  1. Create a repository on a server and share it via http, ftp, or nfs
  2. On the new system boot using the DVD
  3. At the installation prompt, hit [TAB] to modify the boot options
  4. At the end of the boot command, enter askmethod
  5. The installer will prompt you for language settings, then ask for an installation source type and IP information
    1. NFS: 192.168.10.1:/repo
    2. HTTP: http://192.168.10.1/repo
    3. FTP: ftp://192.168.10.1/repo
Kickstart
  1. First create or edit a kickstart script (there is a sample ks-anaconda.cfg in the root users home directory)
  2. Copy the kickstart script to a shared location/floppy/cd
  3. Boot the new system using the rhel6 DVD
  4. At the installation prompt, hit [TAB] to modify the boot options
  5. At the end of the boot command, enter the location of the kickstart script
    1. Floppy: ks=floppy
    2. CD: ks=cdrom:/ks-anaconda.cfg
    3. NFS: ks=nfs:192.168.10.1:/repo/ks-anaconda.cfg
    4. HTTP: ks=http://192.168.10.1/repo/ks-anaconda.cfg
iSCSI
  1.  During the installation process, a screen will prompt What type of devices will your installation involve? 
    1. Select Specialized Storage Devices and click Next
  2. Click the Add Advanced Target and select Add iSCSI target
  3. Select the appropriate network interface and configure the network
  4. Enter the Target IP Address and any additional information as needed, click Add target
  5. The installer will scan for iSCSI drives and return to the device selection list
  6. Select the tab Other SAN Devices and make sure the proper LUN is selected
Encrypted file system
  1. During the installation process, a screen will prompt Which type of installation would you like? 
    1. At the bottom of the screen, check Encrypt system
  2. You will be prompted for a passphrase that will be required to mount the partitions
    1. This must be at least 8 characters
  3. If you also chose to review the partitions, you can select individual partitions and Encrypt them

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