The script MAKEDEV(8) should be used to create the up special files; consult mknod(8) if a special file needs to be made manually. It is recommended as a security precaution to not create special files for devices which may never be installed.
Special file names begin with `up ' and `rup ' for the block and character files respectively. The second component of the name, a drive unit number in the range of zero to seven, is represented by a `? ' in the disk layouts below. The last component of the name, the file system partition, is designated by a letter from `a ' to `h ' which also corresponds to a minor device number set: zero to seven, eight to 15, 16 to 23 and so forth for drive zero, drive two and drive three respectively (see physio(4)). The location and size (in 512 byte sectors) of the partitions for the above drives:
CDC 9762 partitions
disk start length cyls
hp?a 0 15884 0-99
hp?b 16000 33440 100-309
hp?c 0 131680 0-822
hp?d 49600 15884 309-408
hp?e 65440 55936 409-758
hp?f 121440 10080 759-822
hp?g 49600 82080 309-822
CDC 9766 300M drive partitions:
disk start length cyl
up?a 0 15884 0-26
up?b 16416 33440 27-81
up?c 0 500384 0-822
up?d 341696 15884 562-588
up?e 358112 55936 589-680
up?f 414048 861760 681-822
up?g 341696 158528 562-822
up?h 49856 291346 82-561
AMPEX DM 980 partitions
disk start length cyls
hp?a 0 15884 0-99
hp?b 16000 33440 100-309
hp?c 0 131680 0-822
hp?d 49600 15884 309-408
hp?e 65440 55936 409-758
hp?f 121440 10080 759-822
hp?g 49600 82080 309-822
AMPEX 9300 300M drive partitions:
disk start length cyl
up?a 0 15884 0-26
up?b 16416 33440 27-81
up?c 0 495520 0-814
up?d 341696 15884 562-588
up?e 358112 55936 589-680
up?f 414048 81312 681-814
up?g 341696 153664 562-814
up?h 49856 291346 82-561
AMPEX Capricorn 330M drive partitions:
disk start length cyl
hp?a 0 15884 0-31
hp?b 16384 33440 32-97
hp?c 0 524288 0-1023
hp?d 342016 15884 668-699
hp?e 358400 55936 700-809
hp?f 414720 109408 810-1023
hp?g 342016 182112 668-1023
hp?h 50176 291346 98-667
FUJITSU 160M drive partitions:
disk start length cyl
up?a 0 15884 0-49
up?b 16000 33440 50-154
up?c 0 263360 0-822
up?d 49600 15884 155-204
up?e 65600 55936 205-379
up?f 121600 141600 380-822
up?g 49600 213600 155-822
FUJITSU Eagle partitions
disk start length cyls
hp?a 0 15884 0-16
hp?b 16320 66880 17-86
hp?c 0 808320 0-841
hp?d 375360 15884 391-407
hp?e 391680 55936 408-727
hp?f 698880 109248 728-841
hp?g 375360 432768 391-841
hp?h 83520 291346 87-390
The up?a partition is normally used for the root file system, the up?b partition as a paging area, and the up?c partition for pack-pack copying (it maps the entire disk). On 160M drives the up?g partition maps the rest of the pack. On other drives both up?g and up?h are used to map the remaining cylinders.
A program to analyze the logged error information (even in its present reduced form) is needed.
The partition tables for the file systems should be read off of each pack, as they are never quite what any single installation would prefer, and this would make packs more portable.