snapd

Bug #1846397
Comment #16

Comment 16 for bug 1846397

Revision history for this message

Ondrej Kubik (ondrak) wrote on 2019-10-09: Re: [Bug 1846397] Re: snapdragon uc18 image fails to boot (current stable)

#16

I got same error when build latest UC18 image with gadget from stable
So this is not related to latest change
It's probably more related to the fact we do not always test clean boot, or
do we?
My test image is dragonboard_48.snap and dragonboard-kernel_114.snap

On Wed, Oct 9, 2019 at 8:15 AM Ondrej Kubik <email address hidden>
wrote:

> So image from cd image is not giving us good reference as it's running
> different kernel, and this problem is happening in early boot. Let me build
> some test images to compare with
>
> On Wed, 9 Oct 2019, 04:55 Paul Larson, <email address hidden> wrote:
>
>> I can try some more in the morning, but here are some more observations
>> from the rest of my testing today:
>> 1. with both the current beta image, and the one from your people.c.c, I
>> had previously been rewriting the sd card each time to test. I was hitting
>> the errors maybe 10-20% of the time or so. After a successful boot, I then
>> tried rebooting the same sd several more times without rewriting it, and
>> after about 6 more successful boots, I was able to reproduce the error
>> again. It would be interesting to see if someone else with a dragonboard
>> can reproduce this behavior. The SD card I'm using has never given me
>> problems before, but given the nature of them, I don't think I could rule
>> out the possibility of a media problem.
>>
>> 2. I also tried booting the current/stable image that is on cdimage now.
>> This is the image from before this problem was detected. I've rebooted
>> it at least 12 times so far, and have not yet been able to reproduce the
>> problems. I'll still try this some more though, given how randomly I've
>> been able to reproduce this so far.
>>
>> To be fair, things are definitely *better* than they were before, but
>> there may or may not be a second issue we are seeing.
>>
>> --
>> You received this bug notification because you are a bug assignee.
>> https://bugs.launchpad.net/bugs/1846397
>>
>> Title:
>> snapdragon uc18 image fails to boot (current stable)
>>
>> Status in snapd:
>> Confirmed
>>
>> Bug description:
>> The current stable uc18 snapdragon arm64 doesn't boot.
>>
>> http://us.cdimage.ubuntu.com/ubuntu-core/18/stable/current/
>>
>> ubuntu-core-18-arm64+snapdragon.img.xz 2019-08-06 07:56
>>
>> An earlier image boots fine: http://us.cdimage.ubuntu.com/ubuntu-
>> core/18/stable/20190213/ubuntu-core-18-arm64+snapdragon.img.xz
>>
>> Other than the usual quick flash of a blue LED, there is no apparent
>> boot activity. HDMI shows none of the usual boot sequence. I have no
>> UART so cannot see boot console.
>>
>> To manage notifications about this bug go to:
>> https://bugs.launchpad.net/snapd/+bug/1846397/+subscriptions
>>
>

On Wed, Oct 9, 2019 at 8:15 AM Ondrej Kubik <ondrej.kubik@canonical.com>
wrote:

> So image from cd image is not giving us good reference as it's running
> different kernel, and this problem is happening in early boot. Let me build
> some test images to compare with
>
> On Wed, 9 Oct 2019, 04:55 Paul Larson, <paul.larson@canonical.com> wrote:
>
>> I can try some more in the morning, but here are some more observations
>> from the rest of my testing today:
>> 1. with both the current beta image, and the one from your people.c.c, I
>> had previously been rewriting the sd card each time to test. I was hitting
>> the errors maybe 10-20% of the time or so.  After a successful boot, I then
>> tried rebooting the same sd several more times without rewriting it, and
>> after about 6 more successful boots, I was able to reproduce the error
>> again. It would be interesting to see if someone else with a dragonboard
>> can reproduce this behavior. The SD card I'm using has never given me
>> problems before, but given the nature of them, I don't think I could rule
>> out the possibility of a media problem.
>>
>> 2. I also tried booting the current/stable image that is on cdimage now.
>> This is the image from before this problem was detected.  I've rebooted
>> it at least 12 times so far, and have not yet been able to reproduce the
>> problems. I'll still try this some more though, given how randomly I've
>> been able to reproduce this so far.
>>
>> To be fair, things are definitely *better* than they were before, but
>> there may or may not be a second issue we are seeing.
>>
>> --
>> You received this bug notification because you are a bug assignee.
>> https://bugs.launchpad.net/bugs/1846397
>>
>> Title:
>>   snapdragon uc18 image fails to boot (current stable)
>>
>> Status in snapd:
>>   Confirmed
>>
>> Bug description:
>>   The current stable uc18 snapdragon arm64 doesn't boot.
>>
>>   http://us.cdimage.ubuntu.com/ubuntu-core/18/stable/current/
>>
>>   ubuntu-core-18-arm64+snapdragon.img.xz  2019-08-06 07:56
>>
>>   An earlier image boots fine: http://us.cdimage.ubuntu.com/ubuntu-
>>   core/18/stable/20190213/ubuntu-core-18-arm64+snapdragon.img.xz
>>
>>   Other than the usual quick flash of a blue LED, there is no apparent
>>   boot activity. HDMI shows none of the usual boot sequence. I have no
>>   UART so cannot see boot console.
>>
>> To manage notifications about this bug go to:
>> https://bugs.launchpad.net/snapd/+bug/1846397/+subscriptions
>>
>