Most important LED codes in the bootprocess:					
					
For convenient reference, here are the Standard rootvg LV's / Filesystems:					
					
LV        name mountpoint				
hd4	  /				
hd5	  BLV boot logical volume				
hd6	  paging							
hd2	  /usr							
hd3 	  /tmp							
hd1	  /home							
hd9var	  /var							
hd10opt	  /opt							
hd8	  jsflog 							
hd11admin /admin contains /admin/tmp on AIX 6.1						
								
								
During the various fases at boottime, as described above, in case of an error, a LED code may be important:								
								
								
Damaged boot image BLV						LED 201
Invalid bootlist						LED 223-229
reduced ODM from BLV copied into RAMFS: 			LED 548
bootinfo -b is called to determine the last bootdevice		LED 511
ipl_varyon of rootvg						LED 551,552,554,556
mount /dev/hd4 on temporary mountpoint /mnt			LED 555,557
mount /usr, /var						LED 518
syncvg rootvg, or inittab problem				LED 553
tcp/ip is being configured, and there is some problem		LED 581
Corrupted filesystem, corrupted JFS log				LED 551 555 557
Superblock corrupted, corrupted customized ODM database		LED 552,554,556
								
								
Last phases in the boot is where cfgcon is called, to configure the console.								
cfgcon LED codes include:								
C31: Console not yet configured.								
C32: Console is an LFT terminal								
C33: Console is a TTY								
C34: Console is a file on disk								
C99: Could not detect a console device