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| -rw-r--r-- | Documentation/filesystems/bfs.txt | 57 |
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diff --git a/Documentation/filesystems/bfs.txt b/Documentation/filesystems/bfs.txt deleted file mode 100644 index 843ce91a2e40..000000000000 --- a/Documentation/filesystems/bfs.txt +++ /dev/null @@ -1,57 +0,0 @@ -BFS FILESYSTEM FOR LINUX -======================== - -The BFS filesystem is used by SCO UnixWare OS for the /stand slice, which -usually contains the kernel image and a few other files required for the -boot process. - -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: - -# losetup /dev/loop0 stand.img -# mount -t bfs /dev/loop0 /mnt/stand - -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: - -# losetup -d /dev/loop0 - -You can simplify mounting by just typing: - -# mount -t bfs -o loop stand.img /mnt/stand - -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 -/dev/loopN device if /etc/mtab file on your system is a symbolic link to -/proc/mounts. You will need to do it manually using "-d" switch of -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: - -# 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: - -# 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: - -# od -Ad -tx4 stand.img | more - -The first 4 bytes should be 0x1badface. - -If you have any patches, questions or suggestions regarding this BFS -implementation please contact the author: - -Tigran Aivazian <aivazian.tigran@gmail.com> |