Public bug reported:
If enabling rtc support:
/etc/chrony/chrony.conf:
#rtcsync
rtcfile /var/lib/chrony/rtc
And restarting chrony into that config
$ sudo systemctl restart chrony
It will fail to use that:
Feb 23 09:53:02 bionic-test chronyd[4216]: Could not open /etc/adjtime : No
such file or directory
Feb 23 09:53:02 bionic-test chronyd[4216]: Could not open RTC device /dev/rtc :
Permission denied
One is an apparmor Deny:
[ 5756.216096] audit: type=1400 audit(1519379582.153:21): apparmor="DENIED"
operation="open" profile="/usr/sbin/chronyd" name="/dev/rtc0" pid=4216
comm="chronyd" requested_mask="w" denied_mask="w" fsuid=0 ouid=0
The access to /etc/adjtime would be ok if it exists.
I created it in my setup and it is good now.
But the apparmor profile needs to allow rtc.
** Affects: chrony (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1751241
Title:
enabling RTC support is blocked by apparmor
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