--On Wednesday, November 20, 2019 4:51 PM -0500 Jonathan Billings
<billings@xxxxxxxxxx> wrote:
On Nov 20, 2019, at 16:17, Kenneth Porter <shiva@xxxxxxxxxxxxxxx> wrote:
(How does systemd know the difference between generated files and
hand-crafted ones? Can one just remove the fstab entry once the
generated one is present? That would make migration easier.)
Mount units created by the systemd generator are dynamically created each
boot. You can create a persistent one in /etc/systemd/system to override
the dynamic one from fstab.
Where does it put the dynamic ones? I've never gone down that rabbit hole...
Ok, I braved the rabbit hole and found it puts them in a subdirectory of
/run/systemd, a volatile filesystem recreated at boot time. So one could
copy the generated file to /etc/systemd/system which has higher priority
than the generated files and thereby make them permanent. One then removes
the fstab entry.
<https://www.freedesktop.org/software/systemd/man/systemd.generator.html>
My sense is that static, simple mounts for which drivers are present at
boot time are best placed in fstab, and more complex dynamic mounts like
network mounts are best placed in units.
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