Hello,
I received quite a few helpful suggestions about how one could partially
solve the problem I describe below so I am more confused than if there
were only one way to do it :)
For an ARM blueprint [1] concerning updating boot firmware on certain
boards, one of the requirements is to notify users when a new bootloader
package is installed. These binary packages (u-boot and/or x-loader) get
installed on the system but they have no effect on the booting unless
the files they contain are copied to a boot partition.
This copying is not automatic and not part of the package via a dpkg
hook because it is a potentially dangerous operation. However users
should be notified that the possibility exists and that they can flash
the new firmware using flash-kernel.
The question is how to present this notification to the user so that
* it works both in X and in headless images
* it is simple and involves a minimum number of package and system file
changes :)
I was suggested motd-update, jockey, update-manager hooks and debconf
notes so far.
I find the debconf way the least intrusive but I worry that few packages
use such notes and it is only for important use-cases.
Such firmware updates do not happen frequently, if ever, in a stable
release, as only bugfixes that cannot otherwise be worked around in
kernel or userland are targeted.
thank you
Jani
[1]
https://launchpad.net/ubuntu/+spec/other-arm-n-handle-core-boot-files-update
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