Am 30.03.2015 um 19:39 schrieb Ivan Jager: > On Mon, Mar 30, 2015 at 11:28 AM, Marco d'Itri <m...@linux.it> wrote: >> I should add some code to preinst to abort the installation if the >> keyscript directive is used in crypttab. > > Would that still leave the system in a broken state though? Is preinst > early enough to avoid breakage due to uninstalling other packages? > > I guess leaving the system unbootable with warning is a bit better > than without warning, but still...
Keep in mind, that on upgrades, we retain the sysvinit binary, which you can boot via the init=/lib/sysvinit/init kernel comman line parameter for this very reason, i.e. systemd failing to boot your system. Grub will even automatically create a boot menu for your (it's under advanced settings) So maybe, instead of aborting in preinst, we could simply show a warning in pointing people at that possibility? And telling them, that they can switch back fully via "apt-get install sysvinit-core". > Out of curiosity, how difficult would it be to have systemd fall back > to using the cryptdisks init scripts if it detects options it doesn't > recognize? Or could it be easily modified to always use the > initscripts until the built in replacement is mature enough to replace > it? I don't think this would work. Systemd's mount mechanisms are highly dynamic and event based. That simply doesn't fit with how the cryptsetup SysV init script works. > I'm assuming this should be taken with a mountain of salt, but > http://www.freedesktop.org/wiki/Software/systemd/ claims, "systemd > supports SysV and LSB init scripts and works as a replacement for > sysvinit". For functionality, like cryptsetup, which integrates so deeply in the boot process, you can't just use the old SysV init scripts, that's correct. As a rough approximation, every SysV init script which runs in /etc/rcS.d/ would should ideally be converted to integrate properly. For SysV init scripts which run in runlevel 2-5, the backwards compatibility is quite good. Michael -- Why is it that all of the instruments seeking intelligent life in the universe are pointed away from Earth?
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