New ubuntu-device-flash cannot use own gadget snap?

Wed Aug 31 18:27:23 UTC 2016

Yep; but the failure in kpartx didn't seem specific to local vs remote
snaps.

For people on the list, I followed up on IRC and Yann was running into
weird issues with kpartx and ext4 in his environments, but from a clean
Ubuntu vm things worked and that's a viable solution for now.

Cheers,
- Loïc

On Wed, Aug 31, 2016 at 12:26 PM, Simon Fels <simon.fels at canonical.com>
wrote:

> On 31.08.2016 12:16, Loïc Minier wrote:
> > Works for me:
> >
> > $ sudo -E UBUNTU_DEVICE_FLASH_IGNORE_UNSTABLE_GADGET_DEFINITION=1
> > /snap/bin/ubuntu-device-flash --verbose core 16 -o snappy.img --channel
> > edge  --gadget pc --kernel pc-kernel --os ubuntu-core
>
> Yann is trying to use a gadget snap which isn't in the store but placed
> on the local disk. So I suspect he is running something like
>
> $ sudo -E UBUNTU_DEVICE_FLASH_IGNORE_UNSTABLE_GADGET_DEFINITION=1
> /snap/bin/ubuntu-device-flash ... --gadget /home/user/my-gadget.snap ...
>
> regards,
> Simon
>
> > Determining gadget configuration
> >
> >  836.00 KB / 836.00 KB [==================================] 100.00%
> > 12.77 MB/s 0
> >
> > Partitioning...
> >
> > Formatting...
> >
> > Mounting...
> >
> > Provisioning...
> >
> >  74.40 MB / 74.40 MB [===================================] 100.00% 24.02
> > MB/s 3s
> >
> >  74.40 MB / 74.40 MB [===================================] 100.00% 59.46
> > MB/s 1s
> >
> >  110.54 MB / 110.54 MB [=================================] 100.00% 23.19
> > MB/s 4s
> >
> >  836.00 KB / 836.00 KB [==================================] 100.00%
> > 68.23 MB/s 0
> >
> > Unmounting...
> >
> > New image complete
> >
> > Summary:
> >
> >  Output: snappy.img
> >
> >  Architecture: amd64
> >
> >  Channel: edge
> >
> >  Version: 0
> >
> >
> > On Wed, Aug 31, 2016 at 11:11 AM, Yann Sionneau
> > <yann.sionneau at parrot.com <mailto:yann.sionneau at parrot.com>> wrote:
> >
> >
> >
> >     Le 08/31/2016 à 10:56 AM, Simon Fels a écrit :
> >     > On 31.08.2016 10:49, Yann Sionneau wrote:
> >     >> Hello,
> >     >>
> >     >> It seems the new (snapp'ed) ubuntu-device-flash cannot use my own
> gadget
> >     >> snap anymore.
> >     >>
> >     >> yann at imperium$ sudo -E /snap/bin/ubuntu-device-flash --verbose
> core 16
> >     >> -o snappy.img --channel edge  --gadget
> $PWD/../../../xxx_2.0_all.snap
> >     >> --kernel ../../../xxx_kernel/xxx-kernel_3.10.97_armhf.snap --os
> >     >> ubuntu-core --developer-mode --enable-ssh
> >     >> cannot use
> >     >> "/home/yann/dev/snappy_xxx/tools/snappy/xxx_image/../../.
> ./xxx_2.0_all.snap",
> >     >> must be one of: ["canonical-i386" "canonical-pc" "pc"
> "canonical-pi2"
> >     >> "pi2" "pi3" "canonical-dragon" "dragonboard" "beagleblack"
> "plano-amd64"]
> >     >>
> >     >> Is porting Snappy on non official devices not supported anymore?
> >     > No, that is not the case.
> >     >
> >     >> How is it supposed to work now? I must confess that I am blocked
> in my
> >     >> work because of this change, I cannot generate nor flash images
> anymore
> >     >> and my project is thus stalled :/
> >     > We're currently in a phase where ubuntu-device-flash is still
> being used
> >     > but the future will be a new tool called ubuntu-image which will
> allow
> >     > you to create images in a much better way.
> >     Yes I've heard of the new ubuntu-image tool. It's a good idea to make
> >     this new tool!
> >     It's just important I think that the old tools stay functional until
> the
> >     new ones are ready.
> >     >
> >     > From what I got from Michael a lot things are currently hard coded
> >     > inside ubuntu-device-flash. See [1] for the relevant code bits.
> >     >
> >     > You can override the sanity check for the gadget names with setting
> >     > UBUNTU_DEVICE_FLASH_IGNORE_UNSTABLE_GADGET_DEFINITION=1 in the
> command
> >     > line you're executing. Didn't tested this but maybe Michael can
> comment
> >     > how this should work.
> >     Ok, the environment variable works, thanks a lot!
> >     Now I get this:
> >
> >     error while executing external command mkfs.ext4 -F -L writable
> >     /dev/mapper/loop3p2: mke2fs 1.42.13 (17-May-2015)
> >     Invalid filesystem option set:
> >     has_journal,extent,huge_file,flex_bg,metadata_csum,64bit,
> dir_nlink,extra_isize
> >
> >     any idea?
> >
> >     >
> >     > regards,
> >     > Simon
> >     >
> >     > [1]:
> >     >
> >     https://bazaar.launchpad.net/~mvo/goget-ubuntu-touch/
> minimal-first-boot-no-prepare-image/view/head:/ubuntu-
> device-flash/snappy.go#L116
> >     <https://bazaar.launchpad.net/~mvo/goget-ubuntu-touch/
> minimal-first-boot-no-prepare-image/view/head:/ubuntu-
> device-flash/snappy.go#L116>
> >     >
> >
> >
> >     --
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> >
> >
> >
> >
> > --
> > - Loïc
> >
> >
>
>
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-- 
- Loïc
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