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[PATCH] devfs: Last little devfs cleanups throughout the kernel tree.

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Just removes a few unused #defines and fixes some comments due to
devfs now being gone.

Signed-off-by: Greg Kroah-Hartman <[email protected]>
This commit is contained in:
Greg Kroah-Hartman 2005-06-20 21:15:16 -07:00
commit 890fbae281
10 changed files with 18 additions and 52 deletions
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24
Documentation/initrd.txt
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@ -67,8 +67,7 @@ initrd adds the following new options:
as the last process has closed it, all data is freed and /dev/initrd
can't be opened anymore.
root=/dev/ram0 (without devfs)
root=/dev/rd/0 (with devfs)
root=/dev/ram0
initrd is mounted as root, and the normal boot procedure is followed,
with the RAM disk still mounted as root.
@ -90,8 +89,7 @@ you're building an install floppy), the root file system creation
procedure should create the /initrd directory.
If initrd will not be mounted in some cases, its content is still
accessible if the following device has been created (note that this
does not work if using devfs):
accessible if the following device has been created:
# mknod /dev/initrd b 1 250
# chmod 400 /dev/initrd
@ -119,8 +117,7 @@ We'll describe the loopback device method:
(if space is critical, you may want to use the Minix FS instead of Ext2)
3) mount the file system, e.g.
# mount -t ext2 -o loop initrd /mnt
4) create the console device (not necessary if using devfs, but it can't
hurt to do it anyway):
4) create the console device:
# mkdir /mnt/dev
# mknod /mnt/dev/console c 5 1
5) copy all the files that are needed to properly use the initrd
@ -152,12 +149,7 @@ have to be given:
root=/dev/ram0 init=/linuxrc rw
if not using devfs, or
root=/dev/rd/0 init=/linuxrc rw
if using devfs. (rw is only necessary if writing to the initrd file
system.)
(rw is only necessary if writing to the initrd file system.)
With LOADLIN, you simply execute
@ -217,9 +209,9 @@ following command:
# exec chroot . what-follows <dev/console >dev/console 2>&1
Where what-follows is a program under the new root, e.g. /sbin/init
If the new root file system will be used with devfs and has no valid
/dev directory, devfs must be mounted before invoking chroot in order to
provide /dev/console.
If the new root file system will be used with udev and has no valid
/dev directory, udev must be initialized before invoking chroot in order
to provide /dev/console.
Note: implementation details of pivot_root may change with time. In order
to ensure compatibility, the following points should be observed:
@ -236,7 +228,7 @@ Now, the initrd can be unmounted and the memory allocated by the RAM
disk can be freed:
# umount /initrd
# blockdev --flushbufs /dev/ram0 # /dev/rd/0 if using devfs
# blockdev --flushbufs /dev/ram0
It is also possible to use initrd with an NFS-mounted root, see the
pivot_root(8) man page for details.