It started few days ago. I'm running sudo apt update
command and it never ends. Terminal output is
Get:1 http://ru.archive.ubuntu.com/ubuntu xenial InRelease [247 kB]
Hit:2 http://archive.canonical.com/ubuntu xenial InRelease
Hit:3 http://ppa.launchpad.net/attente/java-non-latin-shortcuts/ubuntu xenial InRelease
Hit:4 http://ppa.launchpad.net/webupd8team/sublime-text-3/ubuntu xenial InRelease
Ign:5 http://dl.google.com/linux/chrome/deb stable InRelease
Hit:6 http://ru.archive.ubuntu.com/ubuntu xenial-updates InRelease
Get:7 http://security.ubuntu.com/ubuntu xenial-security InRelease [94,5 kB]
Hit:8 http://dl.google.com/linux/chrome/deb stable Release
Hit:9 http://ru.archive.ubuntu.com/ubuntu xenial-backports InRelease
Fetched 341 kB in 2s (150 kB/s)
While this proccess system fan speed is boosted on my laptop and it's kinda annoying to listen to this. There is no excessive cpu activity though. Can you guys hint me why it happens?
Best Answer
It's a bug. Look at https://bugs.launchpad.net/ubuntu/+source/appstream/+bug/1579712/. The problem is that the bug is affecting the update process, so you can't update. Catch 22.
So to solve it you have to manually install the broken packages.
If the system tried to do the update, you'll probably have a rogue
appstreamcli
running --- using 100% of your CPU; it will also have a lock held on theapt
database, which will block any upgrade attempt.To solve it, you have to kill the rogue
appstreamcli
--- ypu can find its PID by running top, and thenThe second step is to manually update the failing packages as in: (Notice: on a 64-bit system; if you run a 32 bit system you must change the links accordingly, using
i386
in lieu ofamd64
)as posted in comment #24 of the bug report.
Now you can update your system; once you successfully do that, you can safely remove the downloaded packages.
Nice bug.
BTW --- this is the same as appstreamcli hanging with 100% CPU usage during update and apt-get is stuck at "Fetched XXKb in XXsec"