On 2. 3. 2020 1:54, Julio Faracco wrote:
This commit share host Real Time Clock device (rtc) into LXC containers to support hardware clock. This should be available setting up a `rtc` timer under clock section. Since this option is not emulated, it should be available only for `localtime` clock. This option should be readonly due to security reasons.
Before: root# hwclock --verbose hwclock from util-linux 2.32.1 System Time: 1581877557.598365 Trying to open: /dev/rtc0 Trying to open: /dev/rtc Trying to open: /dev/misc/rtc No usable clock interface found. hwclock: Cannot access the Hardware Clock via any known method.
Now: root# hwclock 2020-02-16 18:23:55.374134+00:00 root# hwclock -w hwclock: ioctl(RTC_SET_TIME) to /dev/rtc to set the time failed: Permission denied
Signed-off-by: Julio Faracco <jcfaracco@gmail.com> --- docs/formatdomain.html.in | 2 +- src/lxc/lxc_cgroup.c | 33 ++++++++++++++++++++ src/lxc/lxc_controller.c | 66 +++++++++++++++++++++++++++++++++++++++ 3 files changed, 100 insertions(+), 1 deletion(-)
On my system, the /dev/rtc is just a symlink to /dev/rtc0. Should we create the symlink too or is it okay to just create /dev/rtc? Otherwise looking good. Michal