Glad you figured it out. Note that the behavior of removing the snap from the original seed was actually a bug we already fixed.
The stable image will be out very soon, and has that problem as well as many others properly fixed. On Wed, Nov 2, 2016 at 9:21 PM, Luke Williams <luke.willi...@canonical.com> wrote: > Figured it out with the help of community. It was due to my kernel snap > having a specific name in my assertion and it was causing the core snap to > remove itself after failed boot. I had to give the assertion model the > generic “name” of my kernel snap and then point the actual kernel snap file > name. Once I rebuilt my image that way, everything was good to go and it > works properly and shows up in the snap list correctly, and subsequent > reboots the system does not remove the core snap. > > Now I just have to work on my script to convert the ubuntu-core image to > ONIE, but that is outside of this topic. > > > Thanks, > > Luke Williams - Technical Partner Manager, Network Switches/Ubuntu-Core > email: luke.willi...@canonical.com > http://www.canonical.com/ | http://www.ubuntu.com > > > > > > On Nov 2, 2016, at 12:31 PM, Luke Williams <luke.willi...@canonical.com> > wrote: > > Hello, > > I have an interresting situation happening. > > I created a custom ubuntu-core image with a custom kernel snap from > yakkety from kernel.ubuntu.com. I build the snap using the included > snapcraft.yaml and just changing the name and version number and > description and then I use ubuntu-image to build the image. I then had to > modify the system-boot image to get it to work properly with the ONIE > install scripts since for some reason prefix in grub is hard coded to > /EFI/ubuntu/grub directory, I had to copy the grub.cfg and grubenv to a > grub directory. For some reason when I changed the install script for the > ONIE installer to /EFI/ubuntu grub would fail and the system would just sit > there becuase prefix was hard coded. I got around this by doing the above > mentioned. I was then able to get the device to start and let me do the > initial configuration of the device. After I add my ssh keys from launchpad > to the device, I do some initial configuration by creating some udev rules > for the device network adapters to get the correct names. I also do a snap > list to check that the kernel snap and core snap and gadget snap are all > good, which I get the error saying no snaps installed and I should install > hello-world. I’ve seen this in the past, but the system tends to work as it > should unless I install a snap, then the system fails catastrophically and > I have to reflash the system since it gets all sorts of confussed as to > what snaps are installed. I used to fix this by making sure my kernel snap > was in grade stable and confinement strict, which i did in my kernel snap, > but it is doing this again. I’m assuming its becuase I am using the edge > channel when I build my image. > Anyways, the main reason for this email, after I do a reboot to verify my > udev rule and everything works correctly, the system fails to boot and I > get dumped to an initramfs prompt. I managed to get a screen log of > everything happening and I noticed that it tried to mount the core_383.snap > to /root, and it failed becuase it couldn’t find the file. I looked where > it was trying to mount from and sure enough, there is no core_383.snap file > in tmpmnt_writable/system-data/var/lib/snapd/snaps but instead my kernel > snap and an empty folder named partial. > If I reinstall the device with the base image, it works again, but as soon > as I do a reboot, I’m stuck back where I’m at. Any ideas on how to fix this > or prevent this snap from being deleted after initial installation? Also, > why is the system saying no snaps installed when its an Ubuntu-Core system? > > If you need any other details or information, please let me know. The > vendor really wants a working image since they have a customer that wants > this badly. > > Thanks, > > Luke Williams - Technical Partner Manager, Network Switches/Ubuntu-Core > email: luke.willi...@canonical.com > http://www.canonical.com/ | http://www.ubuntu.com > > > > > > > -- > Snapcraft mailing list > Snapcraft@lists.snapcraft.io > Modify settings or unsubscribe at: https://lists.ubuntu.com/mailm > an/listinfo/snapcraft > > -- gustavo @ http://niemeyer.net
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