Installation guide

partition information gathered during the btcreate session; all existing
information is overwritten.
Performing an ADVANCED restore, you can specify which disk partition to
use, but the customized system can only be duplicated on a machine of the
same hardware platform type.
To use the btextract utility, place the system in a halt state, initialize the
system, then boot from the tape as follows:
>>> init
>>> show dev
>>> boot -fl "nc" MKA500
In the previous example, the show dev command provides the device name
under BOOTDEV and MKA500 is the BOOTDEV.
After the initial boot is complete, the shell invokes the btextract utility.
If you created a /usr/lib/sabt/sbin/custom_install.sh script
during the btcreate session, the btextract utility invokes the
custom_install.sh script before exiting. See the btcreate reference
page for more information.
After the btextract utility completes its task, you must shut down the
system, then reboot the system from the restored disk as follows:
# shutdown -h now
>>> boot DKA100
In this example, DKA100 is the BOOTDEV.
For more information and examples, see the btextract
(8) reference page.
11.2.4 Supported Devices for Standalone System Kernel on Tape
The following sections describe restrictions and requirements.
11.2.4.1 Tape Device Requirements
When using QIC tape drives to create bootable tapes, you must use only
high-density tapes of 320 or more megabytes. The QIC-24, QIC-120, and
QIC-150 format tapes of fixed-512 blocks will not work. Tapes with a
variable block size, such as the QIC-320 and QIC-525, will work with
bootable tape. Using an improperly configured QIC tape drive to create a
bootable tape will result in an I/O error, a write error, or permission denied
error. Therefore, you must take one of the following actions:
Configure the drive at installation time
Rebuild the kernel if the drive was attached to the system after the
installation
Administering the Archiving Services 11–7