Resolves upgrade error Failed to start systemd-sysext.service
#1
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An issue seems to come up when you attempt to activate systemd-sysext a second time when it was already active, this can happen if tailscale was previously installed with this script.
Adding these checks resolves the problem.
The call to
daemon-reload
andsystemd-sysext
refresh should handle any configuration file changes anyway, there is no need to call enable/start if they are already active for the same reason.