[lxc-users] Can a container modify the host rtc?

Paul Giordano paulgiordano at webpass.net
Tue Jul 26 15:30:18 UTC 2016

Running LXD 2.0.3 

I'm trying to have a container be an ntp server, but the container gets an EPERM trying to set the hw clock: 

clock_settime(CLOCK_REALTIME, {1469546956, 258938000}) = -1 EPERM (Operation not permitted) 
adjtimex(0x7ffffb0d6bf0) = -1 EPERM (Operation not permitted) 
settimeofday({1469546956, 258938}, NULL) = -1 EPERM (Operation not permitted) 
settimeofday({1469546956, 0}, NULL) = -1 EPERM (Operation not permitted) 

Is there a way to configure the container to allow access to /dev/rtc0? 

Paul Giordano 
Systems Administrator 
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