#conference #summit

UbuCon and SCaLE 2016 trip report

I’m finally taking some time to wite about things that happened during UbuCon and SCaLE. I am really grateful for Canonical as without the sponsorship I wouldn’t have been there at all. UbuCon UbuCon is where was I was mostly involved, I had a scheduled lightning talk, a proper talk that I gave out with Manik and also actively involved in 3 unconference sessions. Presenting Plenary talk The day started with some an intro to the UbuCon Summit and what it was all about followed by a keynote from Mark Shuttleworth. ...

#snappy #conference

UbuConLA 2015 Summary

This is a post I never got to publish from way back. About UbuConLA Last week I attended the 2015 edition of UbuConLA, a successor to what once was UDS, the Ubuntu Developer Summit which later transformed into vUDS, the v standing for virtual which eventually was renamed to Ubuntu Online Summit. UbuConLA, fully organized by the community, tries to relive the days of UDS for a chance to see face to face with fellow Ubuntu contributors or contributors to be or just people generally interested in Ubuntu. ...

#snappy

Grub and snappy updates

This week, the snappy powered Ubuntu Core landed some interesting changes with regards to how it handles grub based systems. History The original implementation was based on traditional Ubuntu systems, where a bunch of files that any debian package could setup influenced the resulting grub.cfg that resulted after running update-grub. This produced a grub.cfg that was really hard to manage or debug, and what is most important, out of our control. ...

#snappy

Snappy rolling back on kernel panic

Image you get an update and the kernel panics with that update, what are you to do? Suppose now that you have a snappy based system, this is automatically solved for you. Here’s a short video showing this on a Beagle Bone Black, the concept is quite simple, if there is a panic, we revert to the last known state. In this video I inject an initrd that panics on boot after issuing a snappy update and before rebooting into the update. ...