cannot exit installer in unattended/preseeded installation launched from live system with debian-installer-launcher
hi,
i tried to run the installer from within a live system with preseeds and
then to reboot the live system and everything automatically. i got it as
far as the installer proceed to finish the installation main-menu item.
when looking at what happened, it went to
/lib/live/installer/usr/lib/finish-install.d/99reboot from there to
/lib/debian-installer/exit and /lib/debian-installer/exit-command and
/lib/debian-installer/exit will try to unmount, swapoff, and so and then
to reboot. that fails and the main-menu reduces priority and goes to
finish the installation main menu itme again waiting for user input and
failing thereby to complete the automatic installation.
however, i guess some piece of code like di-utils-reboot.postinst (see
[1] or [2]) would actually achieve the installer to exit automatically.
but /lib/debian-installer/exit and /lib/debian-installer/exit-command
know only three possibilities: reboot, halt, and poweroff. i have no
clue how this really fits together. Is there possibly something missing
or not optimally aligned and in fact kind of a bug or do i try something
not supported or in the wrong way?
i admit i haven't even found out what exact version of all the
components involved i'm using. recently downloaded from debian stretch
apt repository. now i tried to include exit as a fourth "finish" command
in /lib/debian-installer/exit-command and /lib/debian-installer/exit
like this:
db_get debian-installer/exit/always_halt
[ "$RET" = "true" ] && return 21
db_get debian-installer/exit/halt
[ "$RET" = "true" ] && return 21
db_get debian-installer/exit/poweroff
[ "$RET" = "true" ] && return 22
+db_get debian-installer/exit/exit
+[ "$RET" = "true" ] && return 11
and
case "$CMDN" in
20) CMD=reboot;;
21) CMD=halt;;
22) CMD=poweroff;;
+11) CMD="exit 11";;
*) echo weird command
esac
i hope one can understand the patch-like notation. a first try to change
it like this showed that it actually exited the installer. for that
experiment though i had to change the scripts while the installer was
running. packaging such a change would be another step. what i still
don't understand is how this fits into the big picture with
di-utils-reboot.postinst (see [1] or [2]) where the code i hoped for is
actually there but i just can't get it executed automatically. more
elegant even would probably be to replace the content of 99reboot with a
call to di-utils-reboot.postinst. again, this might more express the
problem i encountered, while a solution might be quite different.
any suggestion?
regards,
Philipp
[1]
https://anonscm.debian.org/cgit/d-i/debian-installer-utils.git/tree/debian/di-utils-exit-installer.postinst
[2]
https://anonscm.debian.org/cgit/d-i/debian-installer-utils.git/tree/debian/di-utils-reboot.postinst
[3]
https://anonscm.debian.org/cgit/d-i/finish-install.git/tree/finish-install.d/99reboot
[no reference found for] /lib/debian-installer/exit and
/lib/debian-installer/exit-command
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