AIX:Savebase failed

albiet(root)# unmirrorvg rootvg hdisk0
0516-1246 rmlvcopy: If hd5 is the boot logical volume, please run 'chpv -c <diskname>'
       as root user to clear the boot record and avoid a potential boot off an old boot image that may reside on the disk from which this logical volume is moved/removed.
0516-1734 rmlvcopy: Warning, savebase failed.  Please manually run 'savebase' before rebooting.
0516-1734 rmlvcopy: Warning, savebase failed.  Please manually run 'savebase' before rebooting.
0516-1734 rmlvcopy: Warning, savebase failed.  Please manually run 'savebase' before rebooting.
0516-1734 rmlvcopy: Warning, savebase failed.  Please manually run 'savebase' before rebooting.
0516-1734 rmlvcopy: Warning, savebase failed.  Please manually run 'savebase' before rebooting.
0516-1734 rmlvcopy: Warning, savebase failed.  Please manually run 'savebase' before rebooting.
0516-1734 rmlvcopy: Warning, savebase failed.  Please manually run 'savebase' before rebooting.
0516-1734 rmlvcopy: Warning, savebase failed.  Please manually run 'savebase' before rebooting.
0516-1734 rmlvcopy: Warning, savebase failed.  Please manually run 'savebase' before rebooting.
0516-1734 rmlvcopy: Warning, savebase failed.  Please manually run 'savebase' before rebooting.
0516-1734 chvg: Warning, savebase failed.  Please manually run 'savebase' before rebooting.
0516-1132 unmirrorvg: Quorum requirement turned on, reboot system for this to take effect for rootvg.
0516-1144 unmirrorvg: rootvg successfully unmirrored, user should perform bosboot of system to reinitialize boot records.  Then, user must modify bootlist to just include:  hdisk2.
0516-1734 unmirrorvg: Warning, savebase failed.  Please manually run 'savebase' before rebooting.
albiet(root)# lslv -m hd5
hd5:N/A
LP    PP1  PV1               PP2  PV2               PP3  PV3
0001  0001 hdisk2            
albiet(root)# bosboot -ad hdisk2
bosboot: Boot image is 30425 512 byte blocks.
albiet(root)# lsvg -p rootvg
rootvg:
PV_NAME           PV STATE          TOTAL PPs   FREE PPs    FREE DISTRIBUTION
hdisk0            active            539         523         108..92..107..108..108
hdisk2            active            575         278         14..19..15..115..115
albiet(root)# migratepv hdisk0
albiet(root)# which ipl_varyon
/usr/sbin/ipl_varyon
albiet(root)# man ipl_varyon
Manual entry for ipl_varyon not found or not installed.
albiet(root)# ipl_varyon -i
PVNAME          BOOT DEVICE     PVID                    VOLUME GROUP ID
hdisk0          NO              00c5174f9949f2e20000000000000000        00c5174f00004c00
hdisk2          YES             00c5174f1b70ab510000000000000000        00c5174f00004c00
hdisk1          NO              00c5174f994a972a0000000000000000        00c5174f00004c00
hdisk3          NO              00c5174f1b70d3dc0000000000000000        00c5174f00004c00
albiet(root)# savebase -v
saving to '/dev/hd5'
52 CuDv objects to be saved
171 CuAt objects to be saved
24 CuDep objects to be saved
9 CuVPD objects to be saved
355 CuDvDr objects to be saved
8 CuPath objects to be saved
4 CuPathAt objects to be saved
0 CuData objects to be saved
Number of bytes of data to save = 22238 
Compressing data
Compressed data size is = 7771 
       bi_start     = 0x3600
       bi_size      = 0xef7a00
       bd_size      = 0xed7a00
       ram FS start = 0x4fb220
       ram FS size  = 0x9dc749
       sba_start    = 0xedb000
       sba_size     = 0x20000
       sbd_size      = 0x1e5a
Checking boot image size:
       new save base byte cnt = 0x1e5f
Wrote 7775 bytes
savebase : successful completion
albiet(root)#