unattended upgrades reboots machine without kernel installed

[the2nd at otpme.org]

hi,

by mistake i removed all kernels on a ubuntu 14.04 system. tonight there 
was a upgrade that triggered a system reboot so the system ended in an 
unusable stage and it was needed to boot from cd and install a kernel in 
chroot.

i know it was my mistake to remove all kernels but i needed to free some 
space and i just did it the wrong way.

but i think it would be a good idea to not automatically reboot a system 
that has no kernel installed. :)


regards
the2nd