| Developer(s) | Bell Labs[citation needed] |
|---|---|
| Full name | Boot File System |
| Introduced | withUNIX System V |
| Partition IDs | 0x63 (MBR) |
| Structures | |
| Directory contents | single inode table |
| File allocation | 16-bitinodes |
| Limits | |
| Max filename length | 14 characters |
| Other | |
| Supported operating systems | SVR4,UnixWare[citation needed] |
TheBoot File System (namedBFS on Linux, butBFS also refers to theBe File System) was used onUnixWare to store files necessary to its boot process.[1]
It does not support directories, and only allows contiguous allocation for files, to make it simpler to be used by the boot loader.
Besides the UnixWare support, Martin Hinner wrote abfs kernel module forLinux that supports it.[2]
He documented the file system layout as part of the process.[3]
The Linux kernel implementation of BFS was written by Tigran Aivazian and it became part of the standard kernel sources on 28 October 1999 (Linux version 2.3.25).[4]
The original BFS was written at AT&T Bell Laboratories for theUNIX System V,Version 4.0 porting base in 1986.[citation needed] It was written by Ron Schnell, who is also the author ofDunnet (game).[citation needed]
BFS was the first non-S5[clarification needed] (System V) Filesystem written using VFS (Virtual Filesystem) for AT&T UNIX.