1It is possible to easily upgrade your existing NetBSD/sun3 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 * 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 25While using the miniroot's upgrade program is the preferred method 26of upgrading your system, it is possible to upgrade your system 27manually. 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 87NOTE: you SHOULD NOT extract the `etc' set if upgrading. Instead, you 88should extract that set into another area and carefully merge the changes 89by hand. 90