TITLE    : Procedure for moving the boot logical volume between disks. 
OS LEVEL : AIX 4.x
DATE     : 05/05/99
VERSION  : 1.0

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In the following example, an RS6000 has 2 disks, both of which are in rootvg.
The BLV is on hdisk0 and the bootlist contains hdisk0. The BLV (hd5) is to be
moved from hdisk0 and put onto hdisk1.

lspv

hdisk0         00522d5f22e3b29d    rootvg
hdisk1         00522d5f90e66fd2    rootvg 
                              
lslv -l hd5

hd5:N/A
PV                COPIES        IN BAND       DISTRIBUTION
hdisk0            001:000:000   100%          001:000:000:000:000


1, Remove the existing boot logical volume (BLV) :-

   rmlv hd5

   Warning, all data contained on logical volume hd5 will be destroyed.
   rmlv: Do you wish to continue? y(es) n(o)? y
   rmlv: Logical volume hd5 is removed.


2, Clear out (zero) the existing BLV :-

   mkboot -c -d /dev/hdisk0


3, Create a logical volume on the new disk with a PP size of 1 :-

   mklv rootvg 1 hdisk1

   
4, Rename the new logical volume to hd5 :-

   chlv -l hd5 lvxx

   ( where lvxx is the name of the logical volume created in section 3
    eg lv00 ).


5, Write the boot information to the new logical volume :-

   bosboot -a -d hdisk1

   bosboot: Boot image is 6170 512 byte blocks
   

6, Change the logical volume type to boot :-

   chlv -t boot hd5


7, Finally reset the bootlist to look at the new drive :-

   bootlist -m normal hdisk1