patch-2.4.19 linux-2.4.19/Documentation/filesystems/cramfs.txt

• Lines: 58
• Date: Fri Aug 2 17:39:42 2002
• Orig file: linux-2.4.18/Documentation/filesystems/cramfs.txt
• Orig date: Thu Jul 19 16:14:53 2001

diff -urN linux-2.4.18/Documentation/filesystems/cramfs.txt linux-2.4.19/Documentation/filesystems/cramfs.txt
@@ -10,7 +10,7 @@
 
 You can't write to a cramfs filesystem (making it compressible and
 compact also makes it _very_ hard to update on-the-fly), so you have to
-create the disk image with the "mkcramfs" utility in scripts/cramfs.
+create the disk image with the "mkcramfs" utility.
 
 
 Usage Notes
@@ -19,9 +19,7 @@
 File sizes are limited to less than 16MB.
 
 Maximum filesystem size is a little over 256MB.  (The last file on the
-filesystem is allowed to extend past 256MB.)  (Comments in mkcramfs.c
-suggest that ROM sizes may be limited to 64MB, though that's not a
-limitation in cramfs code.)
+filesystem is allowed to extend past 256MB.)
 
 Only the low 8 bits of gid are stored.  The current version of
 mkcramfs simply truncates to 8 bits, which is a potential security
@@ -48,18 +46,28 @@
 
 
 For /usr/share/magic
-------------------
+--------------------
 
-0	long	0x28cd3d45	Linux cramfs
->4	long	x		size %d
->8	long	x		flags 0x%x
->12	long	x		future 0x%x
+0	ulelong	0x28cd3d45	Linux cramfs offset 0
+>4	ulelong	x		size %d
+>8	ulelong	x		flags 0x%x
+>12	ulelong	x		future 0x%x
 >16	string	>\0		signature "%.16s"
->32	long	x		fsid.crc 0x%x
->36	long	x		fsid.edition %d
->40	long	x		fsid.blocks %d
->44	long	x		fsid.files %d
+>32	ulelong	x		fsid.crc 0x%x
+>36	ulelong	x		fsid.edition %d
+>40	ulelong	x		fsid.blocks %d
+>44	ulelong	x		fsid.files %d
 >48	string	>\0		name "%.16s"
+512	ulelong	0x28cd3d45	Linux cramfs offset 512
+>516	ulelong	x		size %d
+>520	ulelong	x		flags 0x%x
+>524	ulelong	x		future 0x%x
+>528	string	>\0		signature "%.16s"
+>544	ulelong	x		fsid.crc 0x%x
+>548	ulelong	x		fsid.edition %d
+>552	ulelong	x		fsid.blocks %d
+>556	ulelong	x		fsid.files %d
+>560	string	>\0		name "%.16s"
 
 
 Hacker Notes