Kernel panic not syncing : attempted to kill init! exitcode=
CPU0 PID 1
run-init
hardware name Dell Inc. Inspiron 3542
call trace
dump_stack+
pani
find_new_reaper
forget_oringial_parent
drm_kms_helper:panic occurred switching back to text console
umount: can't umount /cdrom: device or resource busy
umount: can't umount /casper-rw-backing: device or resource busy
/init: line 7: can't open /dev/sr0: no medium found
umount: can't umount /cdrom: device or resource busy
umount: can't umount /casper-rw-backing: device or resource busy
/init: line 7: can't open /dev/sr0: no medium found
run-init :/sbin/init : exec format error