OS boot failure and automatic reboot in a Sun T5220 SPARC server

Solution 1:

I haven't managed to find out the root cause of this problem. Nevertheless, a way to resolve it is to:

  1. Switch to the OK prompt.
  2. Boot in failsafe mode (ok: boot -F failsafe) and mount the root mount point on /a.
  3. cd /a/dev and del null
  4. Fix the broken OS files and symlinks (pkgchk -R /a -f SUNWcsd)
  5. Reboot