Am 16.12.2013 03:25, schrieb Gerardo Exequiel Pozzi: > On 12/15/2013 08:59 PM, Thomas Bächler wrote: >> The new mkinitcpio 16 (yes, we bumped from 0.15 to 16) in testing >> contains a new feature that automatically generates an "initramfs" on >> shutdown. systemd will pivot to this image on shutdown. All it does is >> re-run systemd-shutdown in a ramdisk, thus allowing a proper umount of / >> and proper shutdown of ALL loop and device mapper devices. >> >> This feature is enabled automatically if >> * /run/initramfs exists (will be created on your next boot by tmpfiles), >> * /run/initramfs/shutdown doesn't exist or is not an executable, >> * The user hasn't masked mkinitcpio-generate-shutdown-ramfs.service. >> >> This method should also be able to completely obsolete the custom >> shutdown hook in archiso and the mkinitcpio shutdown hook (using any of >> those will disable the new stuff). >> > > Nice, thanks for the work on making systemd working on > initramfs/de-initramfs. > > But by nature of the archiso mount structure (/ mounted from > /run/archiso/...) of course this does not work, since systemd does not > know about this (in other words it needs to mount move /run/archiso > outside / before anything) > > Remember that this is the first step, that I do on custom > archiso_shutdown script: > > # /oldroot depends on things inside /oldroot/run/archiso... > mkdir /oldrun > mount -n --move /oldroot/run /oldrun
pivot_root semantics are seriously weird. Wouldn't it help if we moved /run/archiso to /run/initramfs/archiso before switching back to initrd?
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