Sorry, I missed this obvious reason :( .

2015-04-16 15:57 GMT-05:00 James Hunt <email address hidden>:

> The fix is in ubuntu-core-upgrader 0.7.10 so if you are starting from a
> revision with an older version of the upgrader (unclear from your pb),
> it will still crash of course.
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1444500
>
> Title:
>   Update doesn't work when upgrading from devel r145 to r383 devel-
>   proposed
>
> Status in Snappy Ubuntu:
>   Fix Committed
>
> Bug description:
>   kick@kick-Lenovo-Yoga-2-13:~/work/sprint/base_work$ ./start_it.sh dev
>   Les ports de cette machine seront les suivants:
>   SSH: 8022
>   HTTP: 8080
>   HTTPS: 8443
>   Un rappel des ports est disponible: dev.ports
>   kick@kick-Lenovo-Yoga-2-13:~/work/sprint/base_work$ ./ssh_it dev
>   ssh_exchange_identification: read: Connection reset by peer
>   kick@kick-Lenovo-Yoga-2-13:~/work/sprint/base_work$ ./ssh_it dev
>   Warning: Permanently added '[127.0.0.1]:8022' (ECDSA) to the list of
> known hosts.
>   Welcome to Ubuntu Vivid Vervet (development branch) (GNU/Linux
> 3.19.0-12-generic x86_64)
>
>    * Documentation:  https://help.ubuntu.com/
>   Welcome to the Ubuntu Core rolling development release.
>
>    * See https://ubuntu.com/snappy
>
>   It's a brave new world here in snappy Ubuntu Core! This machine
>   does not use apt-get or deb packages. Please see 'snappy --help'
>   for app installation and transactional updates.
>
>   Last login: Tue Apr 14 15:46:36 2015
>   ubuntu@localhost:~$ cat /etc/system-image/channel.ini | grep devel
>   channel: ubuntu-core/devel
>   ubuntu@localhost:~$ cat
> /writable/cache/system/etc/system-image/channel.ini | grep devel
>   channel: ubuntu-core/devel
>   ubuntu@localhost:~$ sudo mount -o remount rw /
>   ubuntu@localhost:~$ sudo mount -o remount rw /writable/cache/system
>   ubuntu@localhost:~$ sudo sed -i s/devel/devel-proposed/
> /etc/system-image/channel.ini
>   ubuntu@localhost:~$ cat /etc/system-image/channel.ini | grep devel
>   channel: ubuntu-core/devel-proposed
>   ubuntu@localhost:~$ sudo sed -i s/devel/devel-proposed/
> /writable/cache/system/etc/system-image/channel.ini
>   ubuntu@localhost:~$ cat
> /writable/cache/system/etc/system-image/channel.ini | grep devel
>   channel: ubuntu-core/devel-proposed
>   ubuntu@localhost:~$ sudo mount -o remount ro /
>   ubuntu@localhost:~$ sudo mount -o remount ro /writable/cache/system
>   ubuntu@localhost:~$ sudo reboot
>   Connection to 127.0.0.1 closed by remote host.
>   Connection to 127.0.0.1 closed.
>   kick@kick-Lenovo-Yoga-2-13:~/work/sprint/base_work$ ./ssh_it dev
>   Warning: Permanently added '[127.0.0.1]:8022' (ECDSA) to the list of
> known hosts.
>   Welcome to Ubuntu Vivid Vervet (development branch) (GNU/Linux
> 3.19.0-12-generic x86_64)
>
>    * Documentation:  https://help.ubuntu.com/
>   Welcome to the Ubuntu Core rolling development release.
>
>    * See https://ubuntu.com/snappy
>
>   It's a brave new world here in snappy Ubuntu Core! This machine
>   does not use apt-get or deb packages. Please see 'snappy --help'
>   for app installation and transactional updates.
>
>   Last login: Wed Apr 15 14:08:18 2015 from 10.0.2.2
>   ubuntu@localhost:~$ cat
> /writable/cache/system/etc/system-image/channel.ini | grep devel
>   channel: ubuntu-core/devel-proposed
>   ubuntu@localhost:~$ cat
> /writable/cache/system/etc/system-image/channel.ini
>   [service]
>   base: system-image.ubuntu.com
>   http_port: 80
>   https_port: 443
>   channel: ubuntu-core/devel-proposed
>   device: generic_amd64
>   build_number: 145
>   version_detail: ubuntu=20150223.2,raw-device=20150223.2,version=145
>   ubuntu@localhost:~$ cat /etc/system-image/channel.ini | grep devel
>   channel: ubuntu-core/devel-proposed
>   ubuntu@localhost:~$ cat /etc/system-image/channel.ini
>   [service]
>   base: system-image.ubuntu.com
>   http_port: 80
>   https_port: 443
>   channel: ubuntu-core/devel-proposed
>   device: generic_amd64
>   build_number: 146
>   version_detail: ubuntu=20150410.3,raw-device=20150410.3,version=146
>   ubuntu@localhost:~$ sudo snappy update
>   Installing ubuntu-core (384)
>   Starting download of ubuntu-core
>   135.00 MB / 135.00 MB
> [=============================================================================================================================================================================================]
> 100.00 % 1.55 MB/s
>   Done
>   error from system-image-cli: ('%s exited with %s:\n%s',
> ['ubuntu-core-upgrade'], 1, 'I: preparing root filesystem\nTraceback (most
> recent call last):\n  File "/usr/bin/ubuntu-core-upgrade", line 182, in
> <module>\n    main()\n  File "/usr/bin/ubuntu-core-upgrade", line 155, in
> main\n    prepare_upgrade(options)\n  File "/usr/bin/ubu')
>
>   Journalctl is not very verbose:
>
>   Apr 15 14:11:06 localhost.localdomain systemd[731]: Starting Default.
>   Apr 15 14:11:36 localhost.localdomain sudo[766]: ubuntu : TTY=pts/0 ;
> PWD=/home/ubuntu ; USER=root ; COMMAND=/usr/bin/snappy update
>   Apr 15 14:11:36 localhost.localdomain sudo[766]: pam_unix(sudo:session):
> session opened for user root by ubuntu(uid=0)
>   Apr 15 14:12:35 localhost.localdomain kernel: EXT4-fs (sda3):
> re-mounted. Opts: (null)
>   Apr 15 14:12:35 localhost.localdomain kernel: EXT4-fs (sda4): mounted
> filesystem with ordered data mode. Opts: (null)
>   Apr 15 14:12:35 localhost.localdomain kernel: EXT4-fs (sda4): mounted
> filesystem with ordered data mode. Opts: (null)
>   Apr 15 14:13:04 localhost.localdomain sudo[766]: pam_unix(sudo:session):
> session closed for user root
>   Apr 15 14:17:01 localhost.localdomain CRON[908]: pam_unix(cron:session):
> session opened for user root by (uid=0)
>   Apr 15 14:17:01 localhost.localdomain CRON[909]: (root) CMD (   cd / &&
> run-parts --report /etc/cron.hourly)
>   Apr 15 14:17:01 localhost.localdomain CRON[908]: pam_unix(cron:session):
> session closed for user root
>   Apr 15 14:17:13 localhost.localdomain sudo[911]: ubuntu : TTY=pts/0 ;
> PWD=/home/ubuntu ; USER=root ; COMMAND=/bin/journalctl -l
>   Apr 15 14:17:13 localhost.localdomain sudo[911]: pam_unix(sudo:session):
> session opened for user root by ubuntu(uid=0)
>
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