AIX 5L Problem Determination - IBM Redbooks

4. After this, rootvg’s primary paging space, /dev/hd6, will be activated.
Figure 3-8 Boot phase 2, part two
Copy RAMFS /dev to disk:
mergedev
Copy RAMFS ODM files to disk:
cp CU* /mnt/etc/objrepos
umount /usr
umount /dev/hd4
mount -f /
mount /usr; mount /var
Copy boot messages to alog
The second part of this phase is shown in Figure 3-8, and the following steps are
taken:
1. The copy of rootvg’s RAMFS’ ODM and /dev directories will occur (mergedev).
This is possible because the temporary mount point, /mnt, is used for the
mounted root file system.
2. Next, the /usr and /var from the RAMFS are unmounted.
3. Finally, the root file system from rootvg (disk) is mounted over the root file
system from the RAMFS. The mount points for the rootvg file systems
become available. Now the /var and /usr file systems from the rootvg can be
mounted again on their ordinary mount points.
There is no console available at this stage, so all boot messages will be copied to
alog. The alog command can maintain and manage logs.
Chapter 3. Booting problem determination 25