8.1. The mksysb command
The mksysb command creates a bootable image of all mounted file systems on the rootvg volume group. You can use this backup command to reinstall a system to its original state.
The tape format includes a BOS boot image, a BOS install image, and a dummy table of contents (TOC) followed by the system backup (root volume group) image. The root volume group image is in backup-file format starting with the data files and then any optional map files.
User-defined paging spaces and raw devices are not backed up.
8.1.1. The data layout of a mksysb tape
The layout of a mksysb tape is shown in Figure 8-1.
Figure 8-1. Layout of a mksysb tape
The BOS boot image contains a copy of the system’s kernel and device drivers needed ...
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