prep revision 1.10
1You will need an AmigaDOS hard drive prep tool to prepare you hard 2drives for use with NetBSD/Amiga. HDToolBox is provided with the 3system software and on floppy installation disks since Release 2.0 4of AmigaDOS so we will provide instructions for its use. 5 6Preparing you hard disk with HDToolBox: 7 8 A full explanation of HDToolBox can be found with your 9 AmigaDOS manuals and is beyond the scope of this document. 10 11 Note you will be modifying your HD's if you mess something 12 up here you could lose everything on all the drives that 13 you configure. It is therefore advised that you: 14 15 Write down your current configurations. Do this 16 by examining each partition on the drive and the 17 drives parameters (from Change drive type.) 18 19 Back up the partitions you are keeping. 20 21 What you need to do is partition your drives; creating at least 22 root, swap and /usr partitions and possibly at least one more for 23 /local if you have the space. 24 25 This should be done as the HDToolBox manual describes. One thing 26 to note is that if you are not using a Commodore controller you 27 will need to specify the device your SCSI controller uses e.g. 28 if you have a Warp Engine you would: 29 30 from cli, 31 hdtoolbox warpdrive.device 32 33 from wb set the tooltype, 34 SCSI_DEVICE_NAME=warpdrive.device 35 36 The important things you need to do above and beyond normal 37 partitioning includes (from Partition Drive section): 38 39 Marking all NetBSD partitions as non-bootable, with 40 one exception: the root partition, if you want to boot 41 NetBSD directly. 42 43 Changing the file system parameters of the partitions 44 to NetBSD ones. This must be done from the 45 partitioning section and `Advanced options' must 46 be enabled. To Make the needed changes: 47 48 - Click the `Adv. Options' button 49 - Click the `Change file system' button 50 51 - Choose `Custom File System' 52 - Turn off `Automount' if on. 53 - Set the dostype to one of these three choices: 54 55 root partition : 0x4e425207 56 swap partition : 0x4e425301 57 other partitions: 0x4e425507 58 59 Here `other' refers to other partitions you will 60 format for reading and writing under NetBSD (e.g. 61 /usr) 62 63 Make sure you hit the return key to enter this value 64 as some versions of HDToolBox will forget your entry 65 if you don't. 66 67 - Turn custom boot code off 68 - Set Reserved Blocks start and end to 0. 69 - Click Ok. 70 71 On the root (and, for installation, swap) partition, 72 set instead this: 73 74 - Turn custom boot code on 75 - Set Reserved Blocks start and end to 0. 76 - Set Number of Custom Boot Blocks to 16 77 - Set Automount This Partition on 78 - Click Ok. 79 80 Mask and maxtransfer are not used with NetBSD. 81 82 83 Once this is done NetBSD/Amiga will be able to recognize your 84 disks and which partitions it should use. 85 86Transferring the miniroot file system: 87 88 The NetBSD/Amiga installation or upgrade now uses a "miniroot" 89 file system which is installed on the partition used by NetBSD 90 for swapping. This removes the requirement of using a floppy 91 disk for the file system used by the installation or upgrade 92 process. It also allows more utilities to be present on the 93 file system than would be available when using an 880K floppy 94 disk. 95 96 Once the hard disk has been prepared for NetBSD, the miniroot 97 file system (miniroot-13.fs) is transferred to the swap 98 partition configured during the hard disk prep (or the existing 99 swap partition in the case of an upgrade). The xstreamtodev 100 utility provided in the "amiga/utilities" directory can be used 101 on AmigaDOS to transfer the file system for either a new 102 installation or an upgrade. The file system can also be 103 transferred on an existing NetBSD system for an update by 104 using dd. This should only be done after booting NetBSD 105 into single-user state. It may also be possible to shutdown 106 to single-user, providing that the single-user state processes 107 are not using the swap partition. 108 109 On AmigaDOS, the command: 110 xstreamtodev --input=miniroot-13.fs --rdb-name=<swap partition> 111 where <swap partition> is the name you gave to the NetBSD 112 partition to be used for swapping. If xstreamtodev is unable 113 to determine the SCSI driver device name or the unit number 114 of the specified partition, you may also need to include the 115 option "--device=<driver.name>" and/or "--unit=<SCSI unit number>". 116 117 To transfer the miniroot using NetBSD, you should be booted up 118 in single user state on the current NetBSD system, or use the 119 "shutdown now" command to shutdown to single-user state. Then 120 copy the miniroot using dd: 121 dd if=miniroot-13.fs of=/dev/rsd0b 122 where /dev/rsd0b should be the device path of the swap partition 123 your system is configured to use. Once the file is copied, 124 reboot back to AmigaDOS to boot the upgrade kernel. 125