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diff --git a/distrib/notes/hp300/prep b/distrib/notes/hp300/prep new file mode 100644 index 00000000000..5da019a2a6a --- /dev/null +++ b/distrib/notes/hp300/prep @@ -0,0 +1,125 @@ +NOTE: These instructions are explicitly for installing NetBSD +from an HP-UX system, version 7 or later. It has not been +tested with HP-UX versions earlier than 7, and has also not +been tested with HP-UX 8, although it is presumed to work. +For the creative, similar steps may be taken from a system such +as Utah's 4.3BSD release for the hp300, although bootstrapping +from such a system has not been tested. + +Bootstrapping the hp300 is a complicated process, but it's a lot +easier than it used to be. For this process you need the +following items from the install/ directory: + + boot NetBSD/hp300 boot block for + HP-IB and SCSI disks + + rootimage.gz bootstrap root filesystem + image + + label prototype disk label + + makedisk a program for HP-UX that will + write a NetBSD disk label, + boot block, and root filesystem + image to the target disk + (NOTE: This is an HP-UX 7.x binary. + while it will work under HP-UX 9.x, + you may want to compile this yourself. + The source may be found in makedisk.tar.gz) + +VERY IMPORTANT NOTE: This procedure will destroy all data on the +target disk. Because NetBSD uses a different filesystem format than +HP-UX, your old data will be useless. If you wish to save anything, +use tar(1) instead of dump(1M), again because of filesystem differences. + +First of all, you must have a second disk on which to install NetBSD. +If possible, this disk should first be prepared with mediainit(1M). +Once this disk is spotless, you should generate a disk label for it. +Using the prototype label provided, fill in all of the necessary +information. Remember, if you derive geometry information from an +HP-UX disktab, your partition size will be off. This is because HP-UX +uses a 1024-byte sector size, while NetBSD uses a 512-byte sector size. +To avoid the problem, you may simply double the number of cylinders. +(That's what I do...works great. -- JRT) + +IMPORTANT: Partition 'a' must be offset one cylinder. Since +partition information is expressed in sectors, the offset of +partition 'a' must be the value of `sectors/cylinder'. This is +to leave room for the boot block. + +When you create your disklabel, be sure to specify whether or not +the disk is HP-IB or SCSI in the `type:' field. + +Below is an example of what a disk label should look like. This +is an example only! Do not attempt this at home! + + + +# Sample disklabel for example only. This is a comment. +type: HP-IB +disk: +label: INSTALL-1_0 +flags: +bytes/sector: 512 +sectors/track: 36 +tracks/cylinder: 7 +sectors/cylinder: 252 +cylinders: 1013 +rpm: 3600 +interleave: 1 +trackskew: 0 +cylinderskew: 0 +headswitch: 0 # milliseconds +track-to-track seek: 0 # milliseconds +drivedata: 0 + +7 partitions: +# size offset fstype [fsize bsize cpg] + a: 30744 252 4.2BSD 1024 8192 16 # (Cyl. 1 - 122) + b: 32760 30996 swap # (Cyl. 123 - 252) + c: 255276 0 boot # (Cyl. 0 - 1012) + e: 20412 63756 4.2BSD 1024 4096 16 # (Cyl. 253 - 333) + f: 40824 84168 4.2BSD 1024 8192 16 # (Cyl. 334 - 495) + g: 130284 124992 4.2BSD 1024 8192 16 # (Cyl. 496 - 1012) + +NOTE: Due to the nature of the bootstrapping procedure, your 'a' +partition must be at least 30744 sectors long. Increase the size of +your 'a' partition just enough to make it end on a cylinder boundary. +If you make it any larger, you will just be wasting space, as the +filesystem ends after 30744 sectors. + +Remember to write down the names of the partitions and what you +will be using them for (i.e. 'a - root, b - swap, e - /usr, etc.') +as you will need this information later on in the installation +process. + +Once you are satisfied with your disklabel, you can write the +root filesystem image to the target disk. Use the `makedisk' +program for this. So, under HP-UX, do: + + ./makedisk /dev/rdsk/c7d0s0 mylabel boot rootimage.gz + +where: + /dev/rdsk/c7d0s0 raw flavor of target disk device + + mylabel disk label you just wrote + + boot supplied boot block + + rootimage.gz gzipped root filesystem image + NOTE: This requires that gzip be + installed on your HP-UX system. + If it is not, a gzip binary is + provided in the install/ directory. + Source for gzip may be found in the + gsrc10 distribution set. Again, this + gzip is an HP-UX 7.x binary. + +If you wish to label any additional disks, you will have to do this +from NetBSD, although you will not have an editor at your disposal. +To do this, simply generate the labels now, and then grab them at +the same time and by the same method you use to grab the distrubtion +sets. + +Once this is done, you should be ready to boot NetBSD from the target +disk. |