Lines Matching +full:use +full:- +full:ram +full:- +full:code

1 .. SPDX-License-Identifier: GPL-2.0
4 ROMFS - ROM File System
7 This is a quite dumb, read only filesystem, mainly for initial RAM
17 code).  Under the same conditions, the msdos filesystem would need
26 As the name suggests, romfs could be also used (space-efficiently) on
27 various read-only media, like (E)EPROM disks if someone will have the
34 floppy drives can be loaded later if you use the "initrd"--initial
35 RAM disk--feature of the kernel.  This would not be really news
43 loaded off the CD at a later stage of the installation.  Another use
53 name).  The maximum overhead for any non-empty file is the header, and
62 	+---+---+---+---+
63   0	| - | r | o | m |  \
64 	+---+---+---+---+	The ASCII representation of those bytes
65   4	| 1 | f | s | - |  /	(i.e. "-rom1fs-")
66 	+---+---+---+---+
68 	+---+---+---+---+
70 	+---+---+---+---+
73 	+---+---+---+---+
77 Every multi byte value (32 bit words, I'll use the longwords term from
95      	+---+---+---+---+
97 	+---+---+---+---+	  (zero if no more files)
99 	+---+---+---+---+
101 	+---+---+---+---+
103 	+---+---+---+---+	  name, and padding
106 	+---+---+---+---+
118 intended use.  The mapping of the 8 possible values to file types is
129  5	char device		    - " -
147 device drivers are unable to cope with smaller than block-sized data.
153 features and code, because the primary and most important advantage of
154 this file system is the small code.  On the other hand, don't be
163 to romfs-subscribe@shadow.banki.hu, the content is irrelevant.
167 - Permissions and owner information are pretty essential features of a
171 - The file system is read only, so it can be very small, but in case
174   solutions: implement write access as a compile-time option, or a new,
175   similarly small writable filesystem for RAM disks.
177 - Since the files are only required to have alignment on a 16 byte
184 - Compression might be an useful feature, but memory is quite a
187 - Where it is used?
189 - Does it work on other architectures than intel and motorola?