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author | Greg Kroah-Hartman <gregkh@suse.de> | 2005-06-20 21:15:16 -0700 |
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committer | Greg Kroah-Hartman <gregkh@suse.de> | 2006-06-26 12:25:09 -0700 |
commit | 890fbae2818a045350b8d1e3bda61ceb88ff1d17 (patch) | |
tree | cf57a61841780ed1ab6bffa3ea0bf7d8cdd999d0 /Documentation/initrd.txt | |
parent | 331b831983f9d706f4a40d08a996d5c2c7a6ea7b (diff) | |
download | lwn-890fbae2818a045350b8d1e3bda61ceb88ff1d17.tar.gz lwn-890fbae2818a045350b8d1e3bda61ceb88ff1d17.zip |
[PATCH] devfs: Last little devfs cleanups throughout the kernel tree.
Just removes a few unused #defines and fixes some comments due to
devfs now being gone.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'Documentation/initrd.txt')
-rw-r--r-- | Documentation/initrd.txt | 24 |
1 files changed, 8 insertions, 16 deletions
diff --git a/Documentation/initrd.txt b/Documentation/initrd.txt index 7de1c80cd719..b1b6440237a6 100644 --- a/Documentation/initrd.txt +++ b/Documentation/initrd.txt @@ -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. |