Hi,
Here comes a question again: what's the naming convention of the
device on OpenBSD?
I am still using the newly installed OpenBSD release 4.6.
It did take me some effort to find out the name of device for me to
use with fdisk and mount:
fdisk /dev/rwd0c
and
mount /dev/sd0i
The first one is especially confusing to me since other attemps like
"fdisk /dev/rwd0a", "fdisk /dev/rwd0d" do not work. In face, the
examples given by the man page of fdisk use "fdisk /dev/wd0" for mbr
and "fdisk /dev/rwd0c" for the OpenBSD. It does make perfect sense to
me. On my OpenBSD system, however, fdisk cannot find device /dev/wd0
and "fdisk /dev/rwd0c" gives the mbr information. This seems very
confusing to me.
For the mount device: what's the device naming convention and the
rationale behind it? I do not think it's a good idea to search through
all the device and find out the device name. Linux and FreeBSD use
slightly different convention but they both make sense to me. What
about OpenBSD?
For your reference, the output of various fdisk commands is listed
below. The first one gives correct information.
Disk: /dev/rwd0c geometry: 15566/255/63 [250069680 Sectors]
Offset: 0 Signature: 0xAA55
Starting Ending LBA Info:
#: id C H S - C H S [ start: size ]
-------------------------------------------------------------------------------
0: 07 0 1 1 - 8923 254 63 [ 63: 143363997 ] NTFS
1: 83 8924 0 1 - 10941 254 63 [ 143364060: 32419170 ] Linux files*
2: A5 13425 0 1 - 15565 254 63 [ 215672625: 34395165 ] FreeBSD
*3: A6 10942 0 1 - 13424 254 63 [ 175783230: 39889395 ] OpenBSD
Disk: /dev/rwd0a geometry: 15566/255/63 [250069680 Sectors]
Offset: 0 Signature: 0xAA55
Starting Ending LBA Info:
#: id C H S - C H S [ start: size ]
-------------------------------------------------------------------------------
0: E8 15356 77 8 - 229721 118 4 [ 246698998: 3443776305 ] <Unknown ID>
1: 01 0 0 1 - 267349 89 4 [ 0: 0 ] DOS FAT-12
2: 00 0 0 0 - 0 0 0 [ 0: 0 ] unused
3: 3F 0 0 1 - 267349 89 4 [ 0: 0 ] <Unknown ID>
Disk: /dev/rwd0b geometry: 15566/255/63 [250069680 Sectors]
Offset: 0 Signature: 0x3834
Starting Ending LBA Info:
#: id C H S - C H S [ start: size ]
-------------------------------------------------------------------------------
0: 20 58716 3 28 - 118439 184 60 [ 943272756: 959461431 ] Willowsoft
1: 31 52413 63 48 - 100661 37 61 [ 842018861: 775102496 ] <Unknown ID>
2: 37 57639 15 25 - 115302 140 12 [ 925971504: 926363958 ] <Unknown ID>
3: 31 53486 55 56 - 104879 180 37 [ 859256110: 825636402 ] <Unknown ID>
Disk: /dev/rwd0d geometry: 15566/255/63 [250069680 Sectors]
Offset: 0 Signature: 0x3831
Starting Ending LBA Info:
#: id C H S - C H S [ start: size ]
-------------------------------------------------------------------------------
0: 00 0 0 0 - 0 0 0 [ 0: 0 ] unused
1: 73 75192 139 32 - 75194 99 17 [ 1207968268: 29596 ] <Unknown ID>
2: 03 1 215 4 - 58686 13 6 [ 29613: 942761802 ] XENIX /usr
3: 08 37963 38 28 - 145529 126 55 [ 609878016: 1728053362 ] AIX fs
