upgrade revision 1.1 
1It is possible to easily upgrade your existing NetBSD/mvme68k system
2using the upgrade program in the miniroot. If you wish to upgrade
3your system by this method, simply select the `upgrade' option once
4the miniroot has booted. The upgrade program with then guide you
5through 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        * Fixup your system's existing /etc/fstab, and if necessary,
15          changing the occurrences of `ufs' to `ffs' and let you
16          edit the resulting file.
17
18        * Make new device nodes in your root filesystem.
19
20        * Copy a new kernel onto your root partition.
21          NOTE: the existing kernel WILL NOT be backed up; doing
22          so would be pointless, since older kernels may not be
23          capable of running NetBSD _VER executables.
24
25        * Install a new boot block.
26
27        * Check your filesystems for integrity.
28
29While using the miniroot's upgrade program is the preferred method
30of upgrading your system, it is possible to upgrade your system
31manually. To do this, follow the following procedure:
32
33        * Place _at least_ the `base' binary set in a filesystem
34          accessible to the target machine. A local filesystem
35          is preferred, since the NFS subsystem in the NetBSD _VER
36          kernel may be incompatible with your old binaries.
37
38        * Back up your pre-existing kernel and copy the _VER
39          kernel into your root partition.
40
41        * Reboot with the _VER kernel into single-user mode.
42
43        * Check all filesystems:
44
45                /sbin/fsck -pf
46
47        * Mount all local filesystems:
48
49                /sbin/mount -a -t nonfs
50
51        * If you keep /usr or /usr/share on an NFS server, you
52          will want to mount those filesystems as well. To do
53          this, you will need to enable the network:
54
55                sh /etc/netstart
56
57        * Run the update(8) daemon, to ensure that new programs
58          are actually stored on disk.
59
60                update
61
62        * Make sure you are in the root filesystem and extract
63          the `base' binary set:
64
65                cd /
66                tar --unlink -zxvpf /path/to/base.tgz
67
68          NOTE: the `--unlink' option is _very_ important!
69
70        * Delete system files in /sbin which now live in /usr/sbin:
71
72                cd /sbin
73                rm -f mountd rtquery quotacheck dumpfs dumplfs
74
75        * Install a new boot block (you may need to be running in
76          single-user mode to do this...):
77
78                cd /usr/mdec
79                cp bootsd /.bootsd
80                ./installboot /.bootsd bootxx <root disk, e.g. /dev/rsd0a>
81
82        * Sync the filesystems:
83
84                sync
85
86        * At this point you may extract any other binary sets
87          you may have placed on local filesystems, or you may
88          wish to extract additional sets at a later time.
89          To extract these sets, use the following commands:
90
91                cd /
92                tar --unlink -zxvpf <path to set>
93
94NOTE: you SHOULD NOT extract the `etc' set if upgrading. Instead, you
95should extract that set into another area and carefully merge the changes
96by hand.
97