diff options
| -rw-r--r-- | Documentation/filesystems/bfs.rst (renamed from Documentation/filesystems/bfs.txt) | 37 | ||||
| -rw-r--r-- | Documentation/filesystems/index.rst | 1 |
2 files changed, 21 insertions, 17 deletions
diff --git a/Documentation/filesystems/bfs.txt b/Documentation/filesystems/bfs.rst index 843ce91a2e40..ce14b9018807 100644 --- a/Documentation/filesystems/bfs.txt +++ b/Documentation/filesystems/bfs.rst @@ -1,4 +1,7 @@ -BFS FILESYSTEM FOR LINUX +.. SPDX-License-Identifier: GPL-2.0 + +======================== +BFS Filesystem for Linux ======================== The BFS filesystem is used by SCO UnixWare OS for the /stand slice, which @@ -9,22 +12,22 @@ In order to access /stand partition under Linux you obviously need to know the partition number and the kernel must support UnixWare disk slices (CONFIG_UNIXWARE_DISKLABEL config option). However BFS support does not depend on having UnixWare disklabel support because one can also mount -BFS filesystem via loopback: +BFS filesystem via loopback:: -# losetup /dev/loop0 stand.img -# mount -t bfs /dev/loop0 /mnt/stand + # losetup /dev/loop0 stand.img + # mount -t bfs /dev/loop0 /mnt/stand -where stand.img is a file containing the image of BFS filesystem. +where stand.img is a file containing the image of BFS filesystem. When you have finished using it and umounted you need to also deallocate -/dev/loop0 device by: +/dev/loop0 device by:: -# losetup -d /dev/loop0 + # losetup -d /dev/loop0 -You can simplify mounting by just typing: +You can simplify mounting by just typing:: -# mount -t bfs -o loop stand.img /mnt/stand + # mount -t bfs -o loop stand.img /mnt/stand -this will allocate the first available loopback device (and load loop.o +this will allocate the first available loopback device (and load loop.o kernel module if necessary) automatically. If the loopback driver is not loaded automatically, make sure that you have compiled the module and that modprobe is functioning. Beware that umount will not deallocate @@ -33,21 +36,21 @@ that modprobe is functioning. Beware that umount will not deallocate losetup(8). Read losetup(8) manpage for more info. To create the BFS image under UnixWare you need to find out first which -slice contains it. The command prtvtoc(1M) is your friend: +slice contains it. The command prtvtoc(1M) is your friend:: -# prtvtoc /dev/rdsk/c0b0t0d0s0 + # prtvtoc /dev/rdsk/c0b0t0d0s0 (assuming your root disk is on target=0, lun=0, bus=0, controller=0). Then you look for the slice with tag "STAND", which is usually slice 10. With this -information you can use dd(1) to create the BFS image: +information you can use dd(1) to create the BFS image:: -# umount /stand -# dd if=/dev/rdsk/c0b0t0d0sa of=stand.img bs=512 + # umount /stand + # dd if=/dev/rdsk/c0b0t0d0sa of=stand.img bs=512 Just in case, you can verify that you have done the right thing by checking -the magic number: +the magic number:: -# od -Ad -tx4 stand.img | more + # od -Ad -tx4 stand.img | more The first 4 bytes should be 0x1badface. diff --git a/Documentation/filesystems/index.rst b/Documentation/filesystems/index.rst index 98de437f5500..f74e6b273d9f 100644 --- a/Documentation/filesystems/index.rst +++ b/Documentation/filesystems/index.rst @@ -53,6 +53,7 @@ Documentation for filesystem implementations. autofs autofs-mount-control befs + bfs fuse overlayfs virtiofs |