3.6 Configuring the Linux Access Gateway to Boot from RHEL

After the installation of Linux Access Gateway, the machine starts in SUSE Linux Enterprise Server (SLES) 9 SP3. To boot the machine from Red Hat, do the following:

  1. From the Linux Access Gateway console, log in as root.

  2. Enter the following command:

    fdisk -l

  3. To copy boot entries for Red Hat to the Linux Access Gateway machine, create a directory as follows:

    mkdir <Directory Name>

    For example, mkdir rhel

  4. Specify the following command to mount the / partition or the boot partition of RHEL:

    mount /dev/<partition> <directory>

    Replace <partition> with the / or boot partition of RHEL that you want to mount and <directory> with the newly created directory.

    For example,

    mount /dev/sda1 rhel

  5. To get multiple boot options in Linux Access Gateway, use a file editor such as vi to copy the lines similar to the lines shown below from the RH boot loader rhel/boot/grub/menu.lst to the Linux Access Gateway boot loader /boot/grub/menu.lst, just below timeout.

    title Red Hat Enterprise Linux Server (2.6.18-53.el5) 
root (hd0,0)
kernel /boot/vmlinuz-2.6.18-53.el5 ro root=LABEL=/ rhgb quiet
initrd /boot/initrd-2.6.18-53.el5.img

    This ensures that the system restarts in RHEL by default.

  6. Restart the machine. The system boots in RHEL.

    If you want to restart the machine in the Linux Access Gateway, use the arrow key to select the Linux option

  7. Start the RHEL server.