Migrating AIX version from 5.3 to 6.1

Migrating AIX version from 5.3 to 6.1:

• Take an mksysb backup for rootvg on bootable media


• Make a copy: /etc/inetd.conf, /etc/inittab, /etc/motd, /usr/dt/config/Xservers


• Check and remove restricted tunables in /etc/nextboot


• Ensure root user is primary authentication method of system. Lsuser –a auth1 root; chuser auth1=system root


• Users who have logged must be log off


• Check error log: errpt


• Verify the processor capacity(32/64bit): prtconf –c


• Insert 6.1 dvd and mount it: mount –v cdrfs –o ro /dev/cd0 /mnt


• Copy file /mnt/usr/lpp/bos/pre_migration to /tmp and run /tmp/pre_migration. The output will be stored in /home/pre_migration.yymmddhhmmss


• Shutdown –F


• Manually turn on system and boot from DVD


• Select current console as the system console


• Select English language


• Select change/show installation settings and make sure the installation type is migration


• Run /usr/lpp/bos/post_migration