Using the same packaged mainline kernel example I just did with grub2-2.02~beta2-19, the issue IS still present:
Found linux image: /boot/vmlinuz-3.18.0-031800rc7-generic
Found initrd image: /boot/initrd.img-3.18.0-031800rc7-generic
Found linux image: /boot/vmlinuz-3.18.0-031800-generic
Found initrd image: /boot/initrd.img-3.18.0-031800-generic
Found linux image: /boot/vmlinuz-3.13.0-44-generic
Found initrd image: /boot/initrd.img-3.13.0-44-generic
…
and it boots 3.18.0-031800rc7 by default.
So I'm not sure what the discrepancy is between this not working and it working as in comment 3, unfortunately.
Using the same packaged mainline kernel example I just did with grub2-2. 02~beta2- 19, the issue IS still present:
Found linux image: /boot/vmlinuz- 3.18.0- 031800rc7- generic img-3.18. 0-031800rc7- generic 3.18.0- 031800- generic img-3.18. 0-031800- generic 3.13.0- 44-generic img-3.13. 0-44-generic
Found initrd image: /boot/initrd.
Found linux image: /boot/vmlinuz-
Found initrd image: /boot/initrd.
Found linux image: /boot/vmlinuz-
Found initrd image: /boot/initrd.
…
and it boots 3.18.0-031800rc7 by default.
So I'm not sure what the discrepancy is between this not working and it working as in comment 3, unfortunately.