Saturday, May 14, 2011

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

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