Hide all the historical fields of the label, unless people ask for them with -A,
set them to intelligently chosen defaults otherwise.
Distill the manual page to remove inaccuracies, misundertandings and obsolete
information. It can probably still be done better but now at least it is
not misinforming people.
This is aimed at creating floppies during cross-releases.
For different endianness machines, a tool like bswapfs(8)
is necessary to make the generated floppies readable on
the target machine. While here, fixed unaligned access
on Alphas.
Tested on: i386, alpha
Notable changes:
- Removed the "disktype" argument from the -B only synopsis
form. This form doesn't touch the disk label, and doesn't
use this argument.
- Fixed the first example in the EXAMPLES section. Support
for compatibility slices has been recently dropped from
the GEOM kernels, and a bit later GEOM became standard.
- Removed the buggy notion from rev. 1.37 that disklabel(8)
may be used to define mount points; it cannot. Improve
some DOS partition / FreeBSD slice wording. Among these,
``dangerously-dedicated slice'' was just a nonsense. ;-)
creates a single file named just "boot".
Apart from the fact that the option "-s" is now gone and that "-b" should
be pointed at /boot/boot instead of /boot/boot1, this patch should be
a no-op.
for the disklabel: This facility is OBE.
First of all, we cannot sensibly implement this in a properly stacked
environment.
Second, if we did, it would confuse the heck out of users who
wouldn't be able to "start from scratch" by dd(8)'ing /dev/zero
onto /dev/da0.
Third, the offered protection is not comprehensive: no other software
would respect it.
Fourth and finally, the disklabel is already protected against
tampering if it controls open partitions.
Uselessness of these options discussed with: peter
--change "-s newboot" to "-s newboot2" in an example
--Fixed spelling
--Fixed some confusion between slice/parition/primary partition and other
things.
PR: 35947 and 35951
Noticed by: Gary W. Swearingen <swear@blarg.net>
Reviewed by: keramida
Thanks to: grog
MFC after: 2 days
disklabel(8)'s "Reading the disk label" section starts out "To examine
or save the label on a disk drive,...". This is confusing. The given
command (disklabel [-r] disk) doesn't save anything (except to standard
out, but that should go without saying). It reads as if the command
might save something on the disk drive.
PR: 32452
Submitted by: Gary W. Swearingen <swear@blarg.net>
being:
# size offset fstype [fsize bsize bps/cpg]
a: 400M 0 4.2BSD 4096 16384 75 # (Cyl. 0 - 812*)
b: 1G * swap
c: * * unused
e: 204800 * 4.2BSD
f: 5g * 4.2BSD
g: * * 4.2BSD
These patches are the original work of Randell Jesup, and
I believe Matt Dillon, with additional work by Warner Losh.
Please let me know if I've left someone out.
Incorporated into this is the fix for PR bin/22727.
This patchset still has style issues and a possible problem on
large disks. However, it was a agreed to get these committed before
performing major surgery on them.
PR: bin/22727
Submitted by: Randell Jesup <rjesup@wgate.com>
Describe the command formats in English.
Add references to other programs (boot0cfg, fdisk).
Remove some old cruft, including FUD about single-level bootstraps.
Add example of output format.
Not-objected-to-by: msmith
rnordier
