[SunHELP] [Q] does "installboot" require to create bootable disk?

[L]

We have SUN E450 with Solaris 2.7 installed.  The bootable disk is
"c0t0d0".  Due to the "/usr" too small, I re-partition the hard disk.  The
procedure I doing are:

  1. format -- repartion the size
  2. newfs -m 1 /dev/dsk/c0t0d0sX
  3. ufsrestore from tape to each partition
  4. reboot


 I forget to run "installboot bootblk /dev/rdsk/c0t0d0s0".  The system
still boot up no problem.  I remember "installboot" is required to make
hard disk as bootable disk.   Dies anyone know why it work?


Thanks.