[artix-general] [s6] How to add "sync" before umounting anything on reboot/shut-down?

[Javier]

Hi !

I've been noticing that even though reboots and shutdowns cleanly occur, when booting back, often a journal recovery happens.  That is weird to me since there was no issue when the systems go down.

I was looking for "sync" being issued whether on one of the S6 scripts or on the filesystem mount/umount S6 service, but found nothing is calling "sync" prior to do final umount of anything.  I'm wondering if there's a way to accomplish that.  I only noticed:

/etc/s6/sv/mount-filesystems

As a possible mount/umount oneshot, but I'm not sure if any S6 script would be a better option.  Would adding the down to mount-filesystem be the way?  How to successfully add "sync" before umounting anything when rebooting/shutting-down with S6?

Thanks !

-- 
Javier

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