To install the base operating system or to access a system that will not boot from the system hard drive, you need a boot image. This procedure describes how to create boot images. The boot image varies for each type of device. The associated RAM disk file system contains device configuration routines for the following devices:
lsvg -l rootvg
lsvg -M rootvg
The lsvg -M command lists the physical disks that contain the various logical volumes.
If the base operating system is being installed (either a new installation or an update), the bosboot command is called to place the boot image on the boot logical volume. The boot logical volume is a physically contiguous area on the disk created through the Logical Volume Manager (LVM) during installation.
The bosboot command does the following:
To create a boot image on the default boot logical volume on the fixed disk, type the following at a command prompt:
bosboot -ad /dev/ipldevice
Note: Do not reboot the machine if the bosboot command fails while creating a boot image. Resolve the problem and run the bosboot command to successful completion.
You must reboot the system for the new boot image to be available for use.
To create a boot image for an Ethernet boot, type the following at a command prompt:
bosboot -ad /dev/ent
For a Token-Ring boot:
bosboot -ad /dev/tok