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upgrade revision 1.2.2.1 
      1 It is possible to easily upgrade your existing NetBSD/sun3 system
      2 using the upgrade program in the miniroot.  If you wish to upgrade
      3 your system by this method, simply select the `upgrade' option once
      4 the miniroot has booted.  The upgrade program with then guide you
      5 through the procedure.  The upgrade program will:
      6 
      7 	* Enable the network based on your system's current
      8 	  network configuration.
      9 
     10 	* Mount your existing filesystems.
     11 
     12 	* Extract binary sets from the media of your choice.
     13 
     14 	* Make new device nodes in your root filesystem.
     15 
     16 	* Copy a new kernel onto your root partition.
     17 	  NOTE: the existing kernel WILL NOT be backed up; doing
     18 	  so would be pointless, since older kernels may not be
     19 	  capable of running NetBSD _VER executables.
     20 
     21 	* Install a new boot block.
     22 
     23 	* Check your filesystems for integrity.
     24 
     25 While using the miniroot's upgrade program is the preferred method
     26 of upgrading your system, it is possible to upgrade your system
     27 manually.  To do this, follow the following procedure:
     28 
     29 	* Place _at least_ the `base' binary set in a filesystem
     30 	  accessible to the target machine.  A local filesystem
     31 	  is preferred, since the NFS subsystem in the NetBSD _VER
     32 	  kernel may be incompatible with your old binaries.
     33 
     34 	* Back up your pre-existing kernel and copy the _VER
     35 	  kernel into your root partition.
     36 
     37 	* Reboot with the _VER kernel into single-user mode.
     38 	  (Otherwise you can not install the boot block.)
     39 
     40 	* Check all filesystems:
     41 
     42 		/sbin/fsck -pf
     43 
     44 	* Mount all local filesystems:
     45 
     46 		/sbin/mount -a -t nonfs
     47 
     48 	* If you keep /usr or /usr/share on an NFS server, you
     49 	  will want to mount those filesystems as well.  To do
     50 	  this, you will need to enable the network:
     51 
     52 		sh /etc/netstart
     53 
     54 	* Run the update(8) daemon, to ensure that new programs
     55 	  are actually stored on disk.
     56 
     57 		update
     58 
     59 	* Make sure you are in the root filesystem and extract
     60 	  the `base' binary set:
     61 
     62 		cd /
     63 		tar --unlink -zxvpf /path/to/base.tar.gz
     64 
     65 	  NOTE: the `--unlink' option is _very_ important!
     66 
     67 	* Install a new boot block:
     68 	  (assuming root is on /dev/rsd0a)
     69 
     70 		cd /usr/mdec
     71 		cp -p ./ufsboot /mnt/ufsboot
     72 		sync ; sleep 1 ; sync
     73 		./installboot -v /ufsboot bootxx /dev/rsd0a
     74 
     75 	* Sync the filesystems:
     76 
     77 		sync
     78 
     79 	* At this point you may extract any other binary sets
     80 	  you may have placed on local filesystems, or you may
     81 	  wish to extract additional sets at a later time.
     82 	  To extract these sets, use the following commands:
     83 
     84 		cd /
     85 		tar --unlink -zxvpf <path to set>
     86 
     87 NOTE: you SHOULD NOT extract the `etc' set if upgrading.  Instead, you
     88 should extract that set into another area and carefully merge the changes
     89 by hand.
     90