I will be watching for your results, I have not been able to get persistent partitions working with 64bit 16.04 using UNetbootin or SDC. Drive fails to boot similar to having a full casper-rw.
On Wed, Oct 26, 2016 at 10:16 AM, sudodus <1619...@bugs.launchpad.net> wrote: > Even if it works for you with a live seesion, it does not work for me > with a persistent live session using a casper-rw partition. starting > from the Ubuntu 16.04.1 LTS iso file. I don't think mkusb has anything > at all to to with this functionality because it does not touch the > mechanism (unless you tell it to do it, and then it will prevent > unattended upgrades). > > mkusb has a work-around feature, and I think all other tools and manual > methods, that create persistent live drives will need some work-around > to avoid this problem. For example, if you create a cloned system with > the Ubuntu Startup Disk Creator, the cloned result will be exactly like > cloning with mkusb. It is possible in such cases to create persistence > by using a casper-rw partition (or file) in another drive. I will test > tonight, if such a system is also vulnerable to this bug. > > I plan to start the test from the Ubuntu 16.04.1 LTS desktop amd64 iso > file. I intend to upgrade casper, but no other program package unless > you advice what must also be upgraded for your fix to work. > > But don't tell me that I must try with the current daily iso file, > because then I would have to test for a very long period of time for > something to happen. In that case (if you know things have changed to > the better, but don't know which program packages are involved) maybe I > should zsync today's daily iso file and keep it for some weeks before I > start it and let it run for at least 24 hours. > > The important thing here is to get something working for the next point > release, 16.04.2 LTS, so I think it should be tested thoroughly. > > -- > You received this bug notification because you are subscribed to the bug > report. > https://bugs.launchpad.net/bugs/1619188 > > Title: > Unattended upgrades can break persistent live media > > Status in casper package in Ubuntu: > Fix Released > Status in casper source package in Xenial: > Fix Committed > Status in casper source package in Yakkety: > Fix Released > > Bug description: > Test Case > --------- > 1) Boot an Ubuntu 16.04 Live CD > 2) Choose Try Ubuntu > 3) head -n5 /etc/apt/apt.conf.d/50unattended-upgrades > 4) Observe -security is enabled in line 3. (// is a comment) > 5) Run /usr/lib/apt/apt.systemd.daily > 6) Observe your Live environment run out of space! (I received a pop-up > re lack of free space and > /var/log/unattended-upgrades/unattended-upgrades-dpkg.log > contained an error installing a package due to disk full.) > > With the version of the package in -proposed step 4 will reveal the > -security pocket being disabled and step 6 won't fill your live > environment. > > Regression Potential > -------------------- > Persistent live users will not receive updates from -security, but that > seems less bad than destroying people's live environment by filling up > their disk. > > Original Bug Description > ------------------------ > Looking at the persistent live Ubuntu 16.04 LTS system - the Software & > Updates screen / Update - I notice, that Automatic updates is set to > 'Download and install automatically'. This is bad in a persistent live > system. > > After leaving the persistent live Ubuntu 16.04 LTS system running > overnight, I found that it had performed an automatic upgrade: > > df revealed that the content in casper-rw had increased to 1.6 GiB. > > It was a surprise that the persistent live system started an automatic > upgrade. This is not caused by the installer (mkusb), because the > files controlling those actions are not touched. Instead it is caused > by a change of the default action, when there are security updates. > And the survey indicates that this default setting is different > between the flavours and versions of Ubuntu. Lubuntu keeps the setting > 'Display immediately', while the other tested flavours change it from > 14.04 LTS to 16.04 LTS. > > Until this is resolved, it is a good idea to disable unattended- > upgrades manually, but above all, to take regular backups, when you > use a persistent live system. > > The survey is described in this link to the Ubuntu Forums: > > https://ubuntuforums.org/showthread.php?t=2335669&p= > 13538805#post13538805 > > and it contains some screenshots illustrating the settings manager for > automatic updates for different versions and flavours of Ubuntu. > > -o- > > There are various scripts in the casper package that change things to > be more appropriate for the live environment. I suggest to change the > default for security updates to 'Display immediately', when the system > is running live and persistent live. > > See also this link to Ask Ubuntu, the first report about this problem: > > https://askubuntu.com/questions/817750/unattended-upgrades-broke- > persistent-live-media/817820# > > -o- > > Addendum: Things should continue to work if you leave a live Ubuntu > iso running for a day or two. Unattended upgrades cause problems for > all live systems, 'live-only' and 'persistent live'. > > ProblemType: BugDistroRelease: Ubuntu 16.04 > Package: casper 1.376 > ProcVersionSignature: Ubuntu 4.4.0-31.50-generic 4.4.13 > Uname: Linux 4.4.0-31-generic x86_64 > ApportVersion: 2.20.1-0ubuntu2.1 > Architecture: amd64 > CasperVersion: 1.376 > CurrentDesktop: Unity > Date: Thu Sep 1 08:32:08 2016 > LiveMediaBuild: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 > (20160719) > ProcEnviron: > TERM=xterm-256color > PATH=(custom, no user) > XDG_RUNTIME_DIR=<set> > LANG=en_US.UTF-8 > SHELL=/bin/bashSourcePackage: casper > UpgradeStatus: No upgrade log present (probably fresh install) > > To manage notifications about this bug go to: > https://bugs.launchpad.net/ubuntu/+source/casper/+bug/ > 1619188/+subscriptions > -- Courtley S Cameron PEng PH 604 980-6367 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1619188 Title: Unattended upgrades can break persistent live media To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/casper/+bug/1619188/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
