diff options
| -rw-r--r-- | sys/arch/powerpc/INSTALLATION | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/sys/arch/powerpc/INSTALLATION b/sys/arch/powerpc/INSTALLATION index 0d937615a01..0d77f4736c7 100644 --- a/sys/arch/powerpc/INSTALLATION +++ b/sys/arch/powerpc/INSTALLATION @@ -51,6 +51,11 @@ MBR Partition 0: sysid 6=0x06 (Primary 'big' DOS (> 32MB)) end: cylinder 0, head 0, sector 0 -- + +sample disklabel output +-- +-- + Make certain to leave that unmodified and as the active partition. That parition is currently used to hold the boot loader. @@ -68,6 +73,28 @@ when the label is written back out to the disk these messages are normal: fdisk: DIOCWLABEL: Inappropriate ioctl for device fdisk: DIOCWLABEL: Inappropriate ioctl for device -- +example fdisk output +-- +Using device /dev/rsd1c: +Parameters extracted from in-core disklabel are: + cylinders=8004 heads=8 sectors/track=16 + sectors/cylinder=128 total=1024512 +Figures below won't work with BIOS for partitions not in cylinder 1 +Parameters to be used for BIOS calculations are: + cylinders=8004 heads=8 sectors/track=16 + sectors/cylinder=128 +WARNING: BIOS sector numbers start at 1 (not 0) +MBR Partition 0: sysid 6=0x06 (Primary 'big' DOS (> 32MB)) + start 1, size 2048 (1 MB), flag 0x80 + beg: cylinder 0, head 0, sector 0 + end: cylinder 0, head 0, sector 0 +MBR Partition 1: <UNUSED> +MBR Partition 2: <UNUSED> +MBR Partition 3: sysid 166=0xa6 (OpenBSD or BSD Big Endian) + start 2176, size 1022336 (499 MB), flag 0x00 + beg: cylinder 17, head 0, sector 1 + end: cylinder 836, head 7, sector 16 +-- Now it is necessary to create a UNIX disklabel for the drive (Would be nice if /etc/disktab had some ready) @@ -90,6 +117,36 @@ at a time, Otherwise the input buffer can overflow and lose characters. Make certain to keep the partition 'd' around. The only change to possibly make to it would be make it's type MSDOS? +example disklabel output +--- +type: unknown +disk: +label: +flags: +bytes/sector: 512 +sectors/track: 16 +tracks/cylinder: 8 +sectors/cylinder: 128 +cylinders: 8004 +total sectors: 1024512 +rpm: 3600 +interleave: 1 +trackskew: 0 +cylinderskew: 0 +headswitch: 0 # milliseconds +track-to-track seek: 0 # milliseconds +drivedata: 0 + +8 partitions: +# size offset fstype [fsize bsize cpg] + a: 56704 2176 4.2BSD 512 4096 64 # (Cyl. 17 - 459) + b: 102400 58880 swap # (Cyl. 460 - 1259) + c: 1024512 0 unused 0 0 # (Cyl. 0 - 8003) + d: 2048 1 unused 0 0 # (Cyl. 0*- 16) + g: 460800 161280 4.2BSD 512 4096 64 # (Cyl. 1260 - 4859) + h: 402432 622080 4.2BSD 512 4096 64 # (Cyl. 4860 - 8003) +--- + It probably would be nice to eventually make the install kernel have option MFS or the rd device, so that "disklabel -e" could be used. |