On Sat, Aug 17, 2019 at 11:01:35PM +, Laurent Bercot wrote:
> The asymmetry of mounting and unmounting filesystems is really a pain
> in the ass for the design of an init/shutdown sequence. I wanted to
> keep the shutdown as quick, minimal, and reliable as possible, but it
> seems there's no
There are certain setups that require doing something after
filesystems are unmounted. Two examples are LVM logical volumes and
LUKS encrypted volumes, but I suppose there must be more cases. In any
such setup, the shutdown sequence would include a 'vgchange -a n'
command or 'cryptsetup close'
For the 0.4.x.x series of s6-linux-init, the shutdown sequence model
was that s6-svscan replaced itself with a 'stage3 init' that ran as
process 1 until the machine halted, powered off, or rebooted. The
stage3 init was an execline script.
s6-linux-init-1.0.0.0 and later, among other things, has
