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 <kai.heng.f...@canonical.com> > Reply-To: Bug 1824893 <1824...@bugs.launchpad.net> > To: nan...@eskimo.com > Subject: [Bug 1824893] Re: When I type systemctl reboot system reaches Target > Reboot but then does not reboot > > Prebuilt binaries can be found here: > https://kernel.ubuntu.com/~kernel-ppa/mainline/ > > -- > You received this bug notification because you are subscribed to the bug > report. > https://bugs.launchpad.net/bugs/1824893 > > Title: > When I type systemctl reboot system reaches Target Reboot but then > does not reboot > > Status in systemd package in Ubuntu: > New > > Bug description: > This is similar to the bug where systemd used to get stuck in target > Shutdown except that bug affected all my hardware, now it gets stuck > at target Reboot but this only affects my elderly Mac Pro 1,1 and does > not affect my laptop or i7-6700k and i7-6850k based servers. > > ProblemType: Bug > DistroRelease: Ubuntu 19.04 > Package: systemd 240-6ubuntu5 > ProcVersionSignature: Ubuntu 5.0.0-8.9-lowlatency 5.0.1 > Uname: Linux 5.0.0-8-lowlatency x86_64 > ApportVersion: 2.20.10-0ubuntu27 > Architecture: amd64 > CurrentDesktop: MATE > Date: Mon Apr 15 16:30:34 2019 > InstallationDate: Installed on 2018-12-06 (130 days ago) > InstallationMedia: Ubuntu-MATE 18.10 "Cosmic Cuttlefish" - Release amd64 > (20181017.2) > MachineType: Apple Computer, Inc. MacPro2,1 > ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.0.0-8-lowlatency > root=UUID=a0174789-1f6b-4641-91aa-cbb9d1790807 ro quiet splash vt.handoff=1 > SourcePackage: systemd > SystemdDelta: > [EXTENDED] /lib/systemd/system/ondemand.service ÿÿ > /lib/systemd/system/ondemand.service.d/ubuntustudio.conf > [EXTENDED] /lib/systemd/system/rc-local.service ÿÿ > /lib/systemd/system/rc-local.service.d/debian.conf > [EXTENDED] /lib/systemd/system/user@.service ÿÿ > /lib/systemd/system/user@.service.d/timeout.conf > > 3 overridden configuration files found. > UpgradeStatus: Upgraded to disco on 2019-03-08 (38 days ago) > dmi.bios.date: 07/02/07 > dmi.bios.vendor: Apple Computer, Inc. > dmi.bios.version: MP21.88Z.007F.B06.0707021348 > dmi.board.asset.tag: Base Board Asset Tag# > dmi.board.name: Mac-F4208DC8 > dmi.board.vendor: Apple Inc. > dmi.board.version: PVT > dmi.chassis.asset.tag: Asset Tag# > dmi.chassis.type: 2 > dmi.chassis.vendor: Apple Computer, Inc. > dmi.chassis.version: Mac-F4208DC8 > dmi.modalias: > dmi:bvnAppleComputer,Inc.:bvrMP21.88Z.007F.B06.0707021348:bd07/02/07:svnAppleComputer,Inc.:pnMacPro2,1:pvr1.0:rvnAppleInc.:rnMac-F4208DC8:rvrPVT:cvnAppleComputer,Inc.:ct2:cvrMac-F4208DC8: > dmi.product.family: MacPro > dmi.product.name: MacPro2,1 > dmi.product.sku: System SKU# > dmi.product.version: 1.0 > dmi.sys.vendor: Apple Computer, Inc. > > To manage notifications about this bug go to: > https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1824893/+subscriptions > -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to systemd in Ubuntu. https://bugs.launchpad.net/bugs/1824893 Title: When I type systemctl reboot system reaches Target Reboot but then does not reboot Status in systemd package in Ubuntu: New Bug description: This is similar to the bug where systemd used to get stuck in target Shutdown except that bug affected all my hardware, now it gets stuck at target Reboot but this only affects my elderly Mac Pro 1,1 and does not affect my laptop or i7-6700k and i7-6850k based servers. ProblemType: Bug DistroRelease: Ubuntu 19.04 Package: systemd 240-6ubuntu5 ProcVersionSignature: Ubuntu 5.0.0-8.9-lowlatency 5.0.1 Uname: Linux 5.0.0-8-lowlatency x86_64 ApportVersion: 2.20.10-0ubuntu27 Architecture: amd64 CurrentDesktop: MATE Date: Mon Apr 15 16:30:34 2019 InstallationDate: Installed on 2018-12-06 (130 days ago) InstallationMedia: Ubuntu-MATE 18.10 "Cosmic Cuttlefish" - Release amd64 (20181017.2) MachineType: Apple Computer, Inc. MacPro2,1 ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.0.0-8-lowlatency root=UUID=a0174789-1f6b-4641-91aa-cbb9d1790807 ro quiet splash vt.handoff=1 SourcePackage: systemd SystemdDelta: [EXTENDED] /lib/systemd/system/ondemand.service → /lib/systemd/system/ondemand.service.d/ubuntustudio.conf [EXTENDED] /lib/systemd/system/rc-local.service → /lib/systemd/system/rc-local.service.d/debian.conf [EXTENDED] /lib/systemd/system/user@.service → /lib/systemd/system/user@.service.d/timeout.conf 3 overridden configuration files found. UpgradeStatus: Upgraded to disco on 2019-03-08 (38 days ago) dmi.bios.date: 07/02/07 dmi.bios.vendor: Apple Computer, Inc. dmi.bios.version: MP21.88Z.007F.B06.0707021348 dmi.board.asset.tag: Base Board Asset Tag# dmi.board.name: Mac-F4208DC8 dmi.board.vendor: Apple Inc. dmi.board.version: PVT dmi.chassis.asset.tag: Asset Tag# dmi.chassis.type: 2 dmi.chassis.vendor: Apple Computer, Inc. dmi.chassis.version: Mac-F4208DC8 dmi.modalias: dmi:bvnAppleComputer,Inc.:bvrMP21.88Z.007F.B06.0707021348:bd07/02/07:svnAppleComputer,Inc.:pnMacPro2,1:pvr1.0:rvnAppleInc.:rnMac-F4208DC8:rvrPVT:cvnAppleComputer,Inc.:ct2:cvrMac-F4208DC8: dmi.product.family: MacPro dmi.product.name: MacPro2,1 dmi.product.sku: System SKU# dmi.product.version: 1.0 dmi.sys.vendor: Apple Computer, Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1824893/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp