If for any reason necessary, you can create a bootable DVD.iso file from a mksysb backup, using mkcd:
Create CD/DVD image | mkcd -L -S -I /mksysb/bootable_mk -m /mksysb/my_mksysb_backup | | | Specify directory where the bootable DVD iso will be placed Do not write to DVD media/device # mkcd -L -S -I /mksysb/bootable_mk -m /mksysb/my_mksysb_backup Initializing mkcd log: /var/adm/ras/mkcd.log... Verifying command parameters... Creating temporary file system: /mkcd/cd_fs... Populating the CD or DVD file system... Building chrp boot image... Copying backup to the CD or DVD file system... ........................................... Creating Rock Ridge format image: /mksysb/bootable_mk/cd_image_655538 Running mkisofs ... ........................ mkrr_fs was successful. Making the CD or DVD image bootable... Removing temporary file system: /mkcd/cd_fs...
If the resulting mksysb file will be bigger than 3.7G (as I saw in the mksysb (or mkcd?) man page) mkcd will create 2 iso images. In this case it is advisable to clean the the rootvg from unnacessary files, like big old log’s and simillar stuff, so you have the entire backup/restore on one medium. Also, it happend to me, that when I created a mksysb on AIX 5.3(dont know the TL) it ended with something like “ended sucsesfully” but, “echo $?” was not 0. When this happened mkcd asked me for the second cd/medium, and refused to continue. So check the resulting result code, after mksysb finished.