Well I've managed to screw up my machine massively and don't know how to get it back to a sane state. I deleted what I thought were all traces of 5.0.9 that I had compiled and re-ran update-grub2, then I installed: rw-r--r-- 1 nanook rmtonly 10877978 Apr 22 23:20 linux-headers-4.15.18-041518_4.15.18-041518.201804190330_all.deb -rw-r--r-- 1 nanook rmtonly 1056602 Apr 22 23:20 linux-headers-4.15.18-041518-generic_4.15.18-041518.201804190330_amd64.deb -rw-r--r-- 1 nanook rmtonly 1059488 Apr 22 23:20 linux-headers-4.15.18-041518-lowlatency_4.15.18-041518.201804190330_amd64.deb -rw-r--r-- 1 nanook rmtonly 52634544 Apr 22 23:21 linux-image-4.15.18-041518-generic_4.15.18-041518.201804190330_amd64.deb -rw-r--r-- 1 nanook rmtonly 52642100 Apr 22 23:21 linux-image-4.15.18-041518-lowlatency_4.15.18-041518.201804190330_amd64.deb And ran another update-grub2 with the following output: ourcing file `/etc/default/grub' Sourcing file `/etc/default/grub.d/init-select.cfg' Generating grub configuration file ... Found linux image: /boot/vmlinuz-5.0.0-13-lowlatency Found initrd image: /boot/initrd.img-5.0.0-13-lowlatency Found linux image: /boot/vmlinuz-5.0.0-13-lowlatency Found initrd image: /boot/initrd.img-5.0.0-13-lowlatency Found linux image: /boot/vmlinuz-4.15.18-041518-lowlatency Found initrd image: /boot/initrd.img-4.15.18-041518-lowlatency Found linux image: /boot/vmlinuz-4.15.18-041518-generic Found initrd image: /boot/initrd.img-4.15.18-041518-generic Found memtest86+ image: /boot/memtest86+.elf Found memtest86+ image: /boot/memtest86+.bin Found Mac OS X on /dev/sda2 done So I expected to see 4.15 generic and low latency in addition to 5.0.0-13-lowlatency in my boot menu, but instead I see 5.0.9 (which even though I've removed vmlinux-5.0.9 starts to boot) and 5.0.13, 4.15.18 doesn't show up. -_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_- Eskimo North Linux Friendly Internet Access, Shell Accounts, and Hosting. Knowledgeable human assistance, not telephone trees or script readers. See our web site: http://www.eskimo.com/ (206) 812-0051 or (800) 246-6874. On Tue, 23 Apr 2019, Kai-Heng Feng wrote: > Date: Tue, 23 Apr 2019 05:12:05 -0000 > From: Kai-Heng Feng