Generating Bootcharts for a UME Image

Creating an Image with Bootchart Enabled

Launch image-creator
Open target chroot
In target chroot:
- sudo apt-get update
- sudo apt-get install bootchart
Create an image and write it to a USB key
Install the image on the USB key (or run a live image off the USB key)
When the system has finished installing and booting, a png containing a boot chart will be generated in /var/log/bootchart
To generate a new bootchart, simply reboot. For example, in terminal:
- sudo shutdown -r now
- A new png will automatically be created in /var/log/bootchart
Note: performing a sudo apt-get install on the running image itself will not work

The following steps describe how to create an image that uses ext3 for the rootfs rather than squashfs:

Close image-creator
Add the following line to the [installimage.menlow-lpia-ubuntu-hardy-ppa] section of ~/.image-creator/image-creator.cfg:
- use_squashfs=0
Launch image-creator
Create an Install USB image. A Live image cannot be used as a Live image always uses squashfs.
Write the created image to a USB key
To verify that squashfs has been effectively disabled, make sure that the install.cfg file at the root of the usb key has the line:
- use_squashfs=0
NOTE: An image that does not use squashfs will use significantly more space in the device's rw storage partition. Be sure that the device that you are installing the image on has a large enough rw storage paritition to accomodate the uncompressed filesystem. This usually means a rw storage partition that is > 1.3 GB.
NOTE: Installation will take longer than usual as files need to be individually decompressed and copied to disk

MobileAndEmbedded/GeneratingBootchartsForUMEImage (last edited 2008-08-06 16:26:33 by localhost)