Bug 742783

Hmm, I suppose you are using systemd?

(In reply to comment #1)
> Hmm, I suppose you are using systemd?

Yes.

And before you ask, if I boot with option "init=/sbin/sysvinit" the behaviour is correct: Press ctrl-alt-delete and the system shuts down and powers off. (64-bit and 32-bit)

OK, it is not a kernel bug then...

yast should create :
ln -s /lib/systemd/system/halt.service /etc/systemd/system/ctrl-alt-del.target
in addition to changing /etc/inittab (which is not read by systemd).

If I add (while systemd is configured)

> ln -s /lib/systemd/system/halt.service /etc/systemd/system/ctrl-alt-del.target

manually, ctrl-alt-delete doesn't do anything at all. After I remove that link, I am back to the original behaviour.

(In reply to comment #5)
> If I add (while systemd is configured)
> 
> > ln -s /lib/systemd/system/halt.service /etc/systemd/system/ctrl-alt-del.target
> 
> manually, ctrl-alt-delete doesn't do anything at all. After I remove that link,
> I am back to the original behaviour.

Frederic, any comment on this?

Additionally, what about other options? YaST offers Reboot, Halt and Ignore. I suppose for Reboot, the symlink above should be removed, but what about Ignore?

by default, ctrl-alt-del.target is symlinked to reboot.target

so, yast should do (careful, I did an error in my previous comment, better to link against target, not service):

for reboot : ln -s /lib/systemd/system/halt.target /etc/systemd/system/ctrl-alt-del.target
for halt : remove /etc/systemd/system/ctrl-alt-del.target (so it will use the defaults)
for ignore : ln -s /dev/null /etc/systemd/system/ctrl-alt-del.target

(In reply to comment #7)
> by default, ctrl-alt-del.target is symlinked to reboot.target

> for reboot : ln -s /lib/systemd/system/halt.target
> /etc/systemd/system/ctrl-alt-del.target
> for halt : remove /etc/systemd/system/ctrl-alt-del.target (so it will use the
> defaults)
> for ignore : ln -s /dev/null /etc/systemd/system/ctrl-alt-del.target

It should be the other way, right?

for reboot: 

ln -s /lib/systemd/system/reboot.target /etc/systemd/system/ctrl-alt-del.target

for halt:

ln -s /lib/systemd/system/halt.target /etc/systemd/system/ctrl-alt-del.target

oops, not enough coffee this morning :

for reboot : 
just remove the symlink in /etc (so we revert to package behaviour)

for halt:
ln -s /lib/systemd/system/halt.target /etc/systemd/system/ctrl-alt-del.target

for nothing
ln -s /dev/null /etc/systemd/system/ctrl-alt-del.target

Just in case: if someone had, theoreticaly, /etc/systemd/system/ctrl-alt-del.target linked to 

/lib/systemd/system/reboot.target

or

/lib/systemd/system/ctrl-alt-del.target

This also counts as reboot (the default scenario), right?

yes, it does.

targets and services from /etc/systemd/system are always preponderant over the one from /lib/systemd/system

Created attachment 476442 [details]
patch for /usr/share/YaST2/modules/Security.ycp

Harald, could you patch your  /usr/share/YaST2/modules/Security.ycp with this patch and test if it works for you?

1. download it to file ('security.diff')
2. patch it ('patch /usr/share/YaST2/modules/Security.ycp < security.diff')
3. compile ('ycpc -c /usr/share/YaST2/modules/Security.ycp')
4. run YaST again

After applying the patch and setting "Interpretation of Ctrl-Alt-Delete" to "halt" the system indeed *halts* and prints a message to that effect, but does *not* power off, which is what I would expect

Well, that looks like a systemd bug (actually, it happens to me sometimes as well)

Jiri, for me there is no "sometimes" about it. I didn't try it hundreds of times, but with the patch in place it *always* halts without power off. When using sysvinit it *always* powers off

(In reply to comment #15)
> Jiri, for me there is no "sometimes" about it. I didn't try it hundreds of
> times, but with the patch in place it *always* halts without power off. When
> using sysvinit it *always* powers off

Yes, I believe. I wrote 'sometimes' for me, just when I try to halt the system (unrelated to pressing ctrl-alt-delete).

my bad, for "halt" command, create symlink :
ln -s /lib/systemd/system/poweroff.target /etc/systemd/system/ctrl-alt-del.target

for halt not powering off, be sure to use halt -p, just calling halt will not cut the power (it is standard unix behaviour, we had a patch in sysvinit initscript to add -p on supported platform but we don't plan to add similar stuff to systemd).

Created attachment 476641 [details]
patch for /usr/share/YaST2/modules/Security.ycp

New patch

Harald, does it work now?

Jiri, I have tried the "halt" setting in YaST under both 32-bit and 64-bit systems and both now successfully power off! I didn't try the other YaST options "reboot" and "ignore"

This is an autogenerated message for OBS integration:
This bug (742783) was mentioned in
https://build.opensuse.org/request/show/105924 Factory / yast2-security

I've submitted new package to Factory and requested update for 12.1

> created request id 105926

This is an autogenerated message for OBS integration:
This bug (742783) was mentioned in
https://build.opensuse.org/request/show/105926 12.1 / yast2-security