June 2017
Intermediate to advanced
478 pages
13h 14m
English
Content preview from Mastering Embedded Linux Programming - Second Edition
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Installing an update
Now we want make a change to the root filesystem and then install it as an update.
We will begin by taking a copy of the image we just built. This will be the live image that we are going to update. If we don't do this, the QEMU script will just load the latest image generated by BitBake, including updates, which defeats the object of the demonstration:
$ cd tmp/deploy/images/vexpress-qemu$ cp core-image-full-cmdline-vexpress-qemu.sdimg \core-image-live-vexpress-qemu.sdimg$ cd -
We are just going to change the hostname of the target, which will be easy to see when it is installed. To do this, edit conf/local.conf and add this line:
hostname_pn-base-files = "vexpress-qemu-release2"
We can build it in the same way as ...
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