Difference between revisions of "Current system images"

From University of Washington - Ubicomp Research Page
Jump to: navigation, search
m
m
Line 15: Line 15:
 
== Other Image Builds ==
 
== Other Image Builds ==
 
<ul>
 
<ul>
=== February 27, 2007 ===
+
=== February 24, 2007 ===
 
Built using the following two scripts [{{SERVER}}/files/imote2/images/backup_2_24_2007/build build command] and [{{SERVER}}/files/imote2/images/backup_2_24_2007/buildScript build helper script].
 
Built using the following two scripts [{{SERVER}}/files/imote2/images/backup_2_24_2007/build build command] and [{{SERVER}}/files/imote2/images/backup_2_24_2007/buildScript build helper script].
 
* Filesystem was changed to support multiroute wifi units (a new fs.jffs2 image was created)
 
* Filesystem was changed to support multiroute wifi units (a new fs.jffs2 image was created)

Revision as of 06:52, 25 February 2007

Overview

To avoid problems with repeatability and deployments this page hosts the default images to be used for the various projects. If you make modifications to your image you should create new patches, update .tgz files, etc. rather than simply creating new images so we have a way of getting from one image to another. For example, 'take the current image, run this patch on it, and copy these files to it'.


Current Image

The recommended system image:

Description Bootloader Kernel Image Filesystem
Console on STD UART
Windows Ethernet Gadget
blob zImage fs.jffs2


Other Image Builds


Comparing two filesystem images

To compare two, fs.jffs2, file system images you can simply mount both images on a machine and do a diff on them: <bash>mkdir /mnt/jffs2ImageA mkdir /mnt/jffs2ImageB mknod /dev/mtdblock0 b 31 0 mknod /dev/mtdblock1 b 31 1

echo "Change fs.jffs2 to point to your images" losetup /dev/loop0 fs.jffs2_A losetup /dev/loop1 fs.jffs2_B

modprobe blkmtd device=/dev/loop0,/dev/loop1 mount -t jffs2 /dev/mtdblock0 /mnt/jffs2ImageA mount -t jffs2 /dev/mtdblock1 /mnt/jffs2ImageB

diff -urN /mnt/jffs2ImageA /mnt/jffs2ImageB</bash>

To remove the mounted images: <bash>sync umount /dev/mtdblock0 umount /dev/mtdblock1 modprobe -r blkmtd losetup -d /dev/loop0 losetup -d /dev/loop1</bash>


Script to update new images

<bash>mkdir -p /var/www/files/imote2/images/backup_2_6_2007/Console_nixGadget/ mkdir -p /var/www/files/imote2/images/backup_2_6_2007/Console_winGadget/ mkdir -p /var/www/files/imote2/images/backup_2_6_2007/noConsole_nixGadget/ mkdir -p /var/www/files/imote2/images/backup_2_6_2007/noConsole_winGadget/ cp -a /projects/builds/buildDir/Console_nixGadget/images /var/www/files/imote2/images/backup_2_6_2007/Console_nixGadget/ cp -a /projects/builds/buildDir/Console_winGadget/images /var/www/files/imote2/images/backup_2_6_2007/Console_winGadget/ cp -a /projects/builds/buildDir/noConsole_nixGadget/images /var/www/files/imote2/images/backup_2_6_2007/noConsole_nixGadget/ cp -a /projects/builds/buildDir/noConsole_winGadget/images /var/www/files/imote2/images/backup_2_6_2007/noConsole_winGadget/ cp -a /var/www/files/imote2/patches /var/www/files/imote2/images/backup_2_6_2007/ cp /projects/builds/build /var/www/files/imote2/images/backup_2_6_2007/ cp /projects/builds/buildScript /var/www/files/imote2/images/backup_2_6_2007/ cd /var/www/files/imote2/images/current rm ./blob rm ./fs.jffs2 rm ./zImage ln -s ../backup_2_6_2007/Console_winGadget/images/blob ./blob ln -s ../backup_2_6_2007/Console_winGadget/images/fs.jffs2 ./fs.jffs2 ln -s ../backup_2_6_2007/Console_winGadget/images/zImage ./zImage cd /var/www/files/imote2/images/current/backup_2_6_2007/ find ./ -type f -exec chmod 444 {} \; find ./ -type d -exec chmod 755 {} \; </bash>