GPG error during "sudo apt update" in "classic" snap

[Gustavo Niemeyer]

This smells like an apparmor denial, which shouldn't happen inside the
classic snap itself.

Can you reproduce the issue when using the stock kernel?



On Fri, Jan 20, 2017 at 6:46 PM, Jian LUO <jian.luo.cn at gmail.com> wrote:

> Hi list,
>
> as the topic suggested I got GPG error in classic snap exactly like Bug
> #1577926 [1] described. strace leads me to this syscall error:
> [pid  2650] execve("/usr/bin/apt-key", ["/usr/bin/apt-key", "--quiet",
> "--readonly", "verify", "--status-fd", "3", "/tmp/apt.sig.usElcl",
> "/tmp/apt.data.BATaU7"], [/* 32 vars */]) = -1 EPERM (Operation not
> permitted)
>
> Since I use a custom kernel, I assume some config options and/or patches
> are missing. Can someone please give a hint on the necessary kernel configs
> for classic to work?
>
> Here is some info on my device.
> root at localhost:~# uname -a
> Linux localhost.localdomain 4.4.24-rt33-xm21-i40-debug+ #1 PREEMPT RT Tue
> Nov 22 16:10:15 CET 2016 i686 i686 i686 GNU/Linux
> root at localhost:~# snap --version
> snap    2.20
> snapd   2.20
> series  16
> root at localhost:~# snap info classic
> name:      classic
> summary:   "Classic environment"
> publisher: canonical
> description: |
>   Classic environment
> commands:
>   - classic
>   - classic.create
>   - classic.reset
> tracking:  beta
> installed: 16.04 (17) 4kB devmode
> refreshed: 2016-10-05 10:18:36 +0200 CEST
> channels:
>   beta:    16.04 (17) 0B devmode
>   edge:    16.04 (17) 0B devmode
>
> Thanks a lot.
>
> Jian
>
> [1] https://bugs.launchpad.net/ubuntu/+source/apt/+bug/1577926
>
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-- 

gustavo @ http://niemeyer.net
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