Hi all,

I am trying to get the actual config for a running kernel.

Ubuntu snappy core 16.04 
(amd64-all-snap.img<https://people.canonical.com/~mvo/all-snaps/amd64-all-snap.img.xz>?).


Can anyone help me, because I cant find it ..



Thanks,

Marco




________________________________
Von: Luke Williams <luke.willi...@canonical.com>
Gesendet: Dienstag, 5. April 2016 18:02
An: Marco Tangl
Cc: snappy-devel@lists.ubuntu.com
Betreff: Re: kernel snap for generic_amd64 devices

Hi Marco,

I ran into the same exact thing. For some reason, the defconfig does not enable 
squashfs xz. You need to add that to your kconfigs section:
CONFIG_SQUASHFS_XZ=y

Then rebuild your snap using snapcraft and you'll be good to go.


Thanks,

Luke Williams - Support Engineer, Network Switches
email: luke.willi...@canonical.com<mailto:luke.willi...@canonical.com>
http://www.canonical.com/ | http://www.ubuntu.com




On Apr 5, 2016, at 8:07 AM, Marco Tangl 
<marco.ta...@dewetron.com<mailto:marco.ta...@dewetron.com>> wrote:

Hi all,

I am trying to snap a kernel for my device which is running the 
mvo/amd64-all-snap.img,
without success so far :(

What I did:
1.       Downloaded kernel sources from 
git://kernel.ubuntu.com/Ubuntu/Ubuntu-xenial.git
2.       Prepared a snapcraft.yaml file:
-------
xx
type: kernel
parts:
 plugin: kernel
  kdefconfig: [defconfig]
  kconfigs:
-          CONFIG_LOCALVERSION="-amd64"
-          CONFIG_DEBUG_INFO=n
-          CONFIG_SQUASHFS=m
 kernel-initrd-modules:
-          squashfs
------

3.       Transferred generated kernel.snap (sudo snapcraft) to destination 
system (amd64-all-snap.img) and installed it.
Everything seemed to be ok .. I got the message "Reboot to use xxxkernel 
version xxx"
4.       Reboot system -> got stuck in initramfs


The thing is, I'm sure the yaml file isn't done in a correct way. Unfortunately 
I cannot find any helpful documentation (for me), examples on that topic.
Do you have an example covering this topic, or can you tell me what I am doing 
wrong ...

The reason why  I want to generate a kernel.snap is, that we have additional 
hardware for which we have a DKMS based kernel module.

Many thanks in advance,

Marco





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