|Re: [chrony-users] Control when the driftfile is written|
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Quoting Bill Unruh <unruh@xxxxxxxxxxxxxx>:
On Thu, 20 Feb 2014, Andrew O'Brien wrote:
I'm interested in running chrony on an embedded device where the
filesystem is normally mounted read only. My plan was to have a
cron job remount rw and ask chrony to write the driftfile but I
can't seem to figure out that last part.
Well, you could have a small filesystem mounted in ram as a tmpfs, and then
have a cron job remount the disk/flash based filesystem rw and copy the drift
file over from the tmpfs filesystem.
William G. Unruh | Canadian Institute for| Tel: +1(604)822-3273
Physics&Astronomy | Advanced Research | Fax: +1(604)822-5324
UBC, Vancouver,BC | Program in Cosmology | unruh@xxxxxxxxxxxxxx
Canada V6T 1Z1 | and Gravity | www.theory.physics.ubc.ca/
That's a good idea but what I was worried about was that chrony would
only write the file when it was shutting down. As the device is
normally just powered off (hence the ro filesystem) it would never get
Does anyone know if it writes the file more often than that?
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