Commit Graph

14 Commits

Author SHA1 Message Date
Søren Schmidt
7cb29d3394 This update adds the support for != 512 byte sector SCSI devices to
the sd & od drivers. There is also slight changes to fdisk & newfs
in order to comply with different sectorsizes.
Currently sectors of size 512, 1024 & 2048 are supported, the only
restriction beeing in fdisk, which hunts for the sectorsize of
the device.
This is based on patches to od.c and the other system files by
John Gumb & Barry Scott, minor changes and the sd.c patches by
me.
There also exist some patches for the msdos filesys code, but I
havn't been able to test those (yet).

	John Gumb (john@talisker.demon.co.uk)
	Barry Scott (barry@scottb.demon.co.uk)
1996-12-01 11:25:38 +00:00
Peter Wemm
10dcae5806 Add hooks into the mount_mfs code in newfs to do the FreeBSD-style
LKM loading if it was not configured into the system.

Note that the LKM for MFS is not enabled by default, but I got it working on
my machine..  I'll see what I did..
1996-01-01 08:37:28 +00:00
David Greenman
70dded0aec Shorten a variable name. 1995-09-17 09:54:05 +00:00
Joerg Wunsch
ccf9a17c14 Avoid the "calculated sectors per cylinder disagrees with disklabel"
warning for the default case where the user hasn't specified either -t
or -u on the command line.  It's been confusing our users.
1995-09-09 13:03:09 +00:00
David Greenman
76b19b6b87 Fixed error in maxcontig calculation that caused it to default to "1". 1995-09-08 13:52:55 +00:00
Poul-Henning Kamp
e7bf085313 Yank out the rewriting of disklabels. This code can and will get confused
in a couple of cases, and it doesn't do much anyway.  It used to save only
the newfs params (block/frag/cgroup.. and nothing more.  Something that
don't belong in a disklabel in the first place.
1995-04-19 02:19:20 +00:00
Poul-Henning Kamp
4e93a5203c Allow zero as value for certain arguments to indicate "take from disklabel". 1995-02-05 18:03:37 +00:00
Poul-Henning Kamp
55abc5794a Change the defaults for newfs to disregard the geometry in the disklabel.
We pretend we have one head with two megabyte worth of sectors per cylinder.

The code try to access another head in what it belives to the same
physical cylinder, because it belives that it would be faster than
waiting for the next free sector under this head to come around.

Most modern drives doesn't have a "classical" geometry, and thus
we end up fooling ourselves doing the above optimization.  With this
change we will fill a cylinder sequentially if we can, and thus get
much more mileage from the track-buffer/cache built into the drives.

As a result a lot of seeks to the next or previous track should be
avoided by this.

(My disk is a lot less noisy actually...)

You can still get the old behaviour, by specifying zero for the
numbers.

This will also solve the problem with newfs barfing at really big
drives.

Obtained from:	adult advice from Kirk.
1995-02-05 08:42:31 +00:00
Garrett Wollman
3fa88dec7f Add support for filesystem-specific `-o' options, and re-implement the
most common cd9660 and nfs options like God intended them.  (It is now
possible to say

	mount -o ro,soft,bg,intr there:/foo/bar /foo/bar

again.)  This whole getmntopt() business is an incredible botch;
it never should have been anything more than a wrapper around
getsubopt(3).  Because if the way the current hackaround is implemented,
options which take arguments (like the old `rsize' and `wsize') are still
unavailable, and must be accessed the new, broken way.

(It's unimaginable how Berkeley managed to screw up one of the few things
about NFS that Sun actually got right to begin with!)
1994-11-01 23:51:53 +00:00
Jordan K. Hubbard
3270fb5ece Put back the `:' in the trinary ?: so this can actually compile again! :) 1994-10-13 08:46:44 +00:00
Poul-Henning Kamp
72ab19aeb7 Added '-F file' option of mount_mfs. This allows me to make floppy images
without waiting for my floppy-drive all the time :-)  Might have other
interesting uses too.
1994-10-12 22:04:36 +00:00
David Greenman
3156bbb2d1 Backed out part of the last change that prevents the rpos table from
being output if <= 1 rpos; there is a bug in the kernel which doesn't
quite get along with this. Changed default #rpos to 1, and fixed up
manual page. Converted nrpos to 1 if user specifies 0.
1994-10-09 20:10:56 +00:00
David Greenman
7ce005d7c1 1) If nrpos <= 1, don't output rpos table (and set fs_cpc to 0) - disabling
the use of the rotational position table.
2) Allow specification of 0 rotational positions (disables function).
3) Make rotdelay=0 and nrpos=0 by default.

   The purpose of the above is to optimize for modern SCSI (and IDE) drives
that do read-ahead/write-behind.
1994-10-01 16:56:22 +00:00
Rodney W. Grimes
8fae3551ec BSD 4.4 Lite sbin Sources
Note:  XNSrouted and routed NOT imported here, they shall be imported with
usr.sbin.
1994-05-26 06:35:07 +00:00