What is the FreeBSD naming convention for devices of disk slices and
labels? Considering my system is installed on the first partition of
/dev/wd0 (non-dedicated), these are the block-device interfaces I
have to my disk:
wd0 wd0c wd0f wd0s1 wd0s1c wd0s1f wd0s2
wd0a wd0d wd0g wd0s1a wd0s1d wd0s1g wd0s3
wd0b wd0e wd0h wd0s1b wd0s1e wd0s1h wd0s4
Questions:
1. What are wd0[a-h] used for?
2. If wd0s1 is my first slice, why isn't it named wd0s0?
3. If I format wd0s2 as any type (Xenix for example),
will /dev now contain wd0s2[a-h]?
Assuming /dev/wd0s2 contains a few blocks, ie /dev/wd0s1
doesn't span to the end of disk:
4. If I want to use /dev/wd0s2 as a raw slice for reading
and writing, what are the steps to follow?
4a. Do I need to format the partition as any type? If so
is there a recommended type (perhaps one which won't
be recognised by the bootloader would be preferable)?
4b. Should I then be using /dev/rwd0s2 or /dev/rwd0s2a
for reading and writing (of course, this is assuming
block i/o of multiples of 512 bytes)?
Lastly, where else could I have found this information other
than asking on the FreeBSD mailing list?
Thanks,
Marc Tardif
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