Xenial:
$ grep AOUT !$ grep AOUT /boot/config-4.4.0-149-generic # CONFIG_HAVE_AOUT is not set # CONFIG_IA32_AOUT is not set
Bionic:
$ grep AOUT /boot/config-4.15.0-51-generic # CONFIG_HAVE_AOUT is not set # CONFIG_IA32_AOUT is not set
Sorry to say I don't have an a.out file to test with.
Thanks
Xenial:
$ grep AOUT !$ 4.4.0-149- generic
grep AOUT /boot/config-
# CONFIG_HAVE_AOUT is not set
# CONFIG_IA32_AOUT is not set
Bionic:
$ grep AOUT /boot/config- 4.15.0- 51-generic
# CONFIG_HAVE_AOUT is not set
# CONFIG_IA32_AOUT is not set
Sorry to say I don't have an a.out file to test with.
Thanks