Userspace root image

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(demo JFFS2 root image: - file does not exist anymore - replaced by openmoko image (is it still finishing installtion))
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=== demo JFFS2 root image ===
 
=== demo JFFS2 root image ===
  
At the moment there is a very basic root fs image available from http://people.gta01.hmw-consulting.de/laforge/tmp/rootfs/rootfs.jffs2
+
At the moment there is an OpenMoko image for the developer release available.
  
Please note that this image will take ages to boot the first time, since this boot finishes the installation process.
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http://buildhost.openmoko.org/tmp/deploy/images/openmoko-devel-image-fic-gta01-20070704215706.rootfs.jffs2
 +
 
 +
Please note that this image may take long to boot the first time, since this boot finishes the installation process.
  
 
== Flashing a root filesystem into NAND ==
 
== Flashing a root filesystem into NAND ==

Revision as of 21:25, 19 July 2007

Contents

Creating a root filesystem from scratch

To create a root file system image for storage in NAND flash, we use the mkfs.jffs2 program contained int the Debian package mtd-tools.

mkfs.jffs2 --pad=0x700000 -o rootfs.jffs2 -e 0x4000 -n -d/tmp/jffsroot/

is a typical command. It creates a FS image for our erase block size of 16k, padded to 0x700000 bytes in length from the files contained in the /tmp/jffsroot directory and stores the FS image in rootfs.jffs2.

Using pre-created root fs image

OpenEmbedded

OpenEmbedded will itself create a jffs2 image at the end of the build process.

Once the build server is running, it will create root filesystem images for us.

demo JFFS2 root image

At the moment there is an OpenMoko image for the developer release available.

http://buildhost.openmoko.org/tmp/deploy/images/openmoko-devel-image-fic-gta01-20070704215706.rootfs.jffs2

Please note that this image may take long to boot the first time, since this boot finishes the installation process.

Flashing a root filesystem into NAND

See U-boot#Writing_rootfs_to_NAND

Personal tools

Creating a root filesystem from scratch

To create a root file system image for storage in NAND flash, we use the mkfs.jffs2 program contained int the Debian package mtd-tools.

mkfs.jffs2 --pad=0x700000 -o rootfs.jffs2 -e 0x4000 -n -d/tmp/jffsroot/

is a typical command. It creates a FS image for our erase block size of 16k, padded to 0x700000 bytes in length from the files contained in the /tmp/jffsroot directory and stores the FS image in rootfs.jffs2.

Using pre-created root fs image

OpenEmbedded

OpenEmbedded will itself create a jffs2 image at the end of the build process.

Once the build server is running, it will create root filesystem images for us.

demo JFFS2 root image

At the moment there is a very basic root fs image available from http://people.gta01.hmw-consulting.de/laforge/tmp/rootfs/rootfs.jffs2

Please note that this image will take ages to boot the first time, since this boot finishes the installation process.

Flashing a root filesystem into NAND

See U-boot#Writing_rootfs_to_NAND