* Re: mkfs.jffs2
2005-06-07 9:32 mk.jffs2 Munira Ahmed
@ 2005-06-07 11:10 ` Jarkko Lavinen
2005-06-07 11:49 ` mk.jffs2 Josh Boyer
1 sibling, 0 replies; 3+ messages in thread
From: Jarkko Lavinen @ 2005-06-07 11:10 UTC (permalink / raw)
To: Munira Ahmed; +Cc: linux-mtd@lists.infradead.org
On Tue, Jun 07, 2005 at 05:32:53PM +0800, ext Munira Ahmed wrote:
> Is there any manual page or tutorial on mk.jffs2 on the net. it
seems
Run mkfs.jffs2 without an argument to print its usage? (Sample below)
For example, I use following command for Nokia 770 test board with
Samsung 1Gbit chip with 128KiB erase block size. I create the image
without cleanmarkers because that is the way how N770's bootloader
engulfs the JFFS2 image to be flashed.
$ mkfs.jffs2 -r srcdir -o imagefile -e 128 -l -n
Jarkko Lavinen
$ ./mkfs.jffs2
mkfs.jffs2: Usage: mkfs.jffs2 [OPTIONS]
Make a JFFS2 file system image from an existing directory tree
Options:
-p, --pad[=SIZE] Pad output to SIZE bytes with 0xFF. If SIZE is
not specified, the output is padded to the end of
the final erase block
-r, -d, --root=DIR Build file system from directory DIR (default: cwd)
-s, --pagesize=SIZE Use page size (max data node size) SIZE (default: 4KiB)
-e, --eraseblock=SIZE Use erase block size SIZE (default: 64KiB)
-c, --cleanmarker=SIZE Size of cleanmarker (default 12)
-m, --compr-mode=MODE Select compression mode (default: priortiry)
-x, --disable-compressor=COMPRESSOR_NAME
Disable a compressor
-X, --enable-compressor=COMPRESSOR_NAME
Enable a compressor
-y, --compressor-priority=PRIORITY:COMPRESSOR_NAME
Set the priority of a compressor
-L, --list-compressors Show the list of the avaiable compressors
-t, --test-compression Call decompress and compare with the original (for test)
-n, --no-cleanmarkers Don't add a cleanmarker to every eraseblock
-o, --output=FILE Output to FILE (default: stdout)
-l, --little-endian Create a little-endian filesystem
-b, --big-endian Create a big-endian filesystem
-D, --devtable=FILE Use the named FILE as a device table file
-f, --faketime Change all file times to '0' for regression testing
-q, --squash Squash permissions and owners making all files be owned by root
-U, --squash-uids Squash owners making all files be owned by root
-P, --squash-perms Squash permissions on all files
-h, --help Display this help text
-v, --verbose Verbose operation
-V, --version Display version information
-i, --incremental=FILE Parse FILE and generate appendage output for it
> that everything is inherently known to the community without proper
> documentation or manuals. I can't find any decent document that could
> give me a start.
>
>
> Where do I learn about jffs2 and mk.jffs2
>
>
>
> --
> Munira Ahmed
>
>
>
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