Might I suggest a bug be created for the behavior I saw regarding removing other kernels.
Specifically, I upgraded to a kernel and the upgrade largely failed, even thought it was allowed to proceed and was not backed out. Automatically backing out of a failing upgrade might be yet another feature request - qualitatively evaluating (programatically) an upgrade would be an interesting, large, and valuable project. This would add quite a bit of value to Linux users. What I'm focused on, however is the fact that apt told me to remove older kernels as they were no longer needed, even though the current system didn't even have a functional network after the upgrade. Someone not paying attention might follow these instructions obediently removing the old kernels. Unless I'm mistaken, that would leave zero alternatives to boot to a functioning (i.e.- with networking) system. This little note from apt would escalate the severity of the failed upgrade exponentially. What I'm not sure about is if the message was asking me to remove all older kernels or just the oldest of them. If it was suggesting I remove some but not all older kernels, this point would be moot. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1672224 Title: Upgrade to kernel version 4.4.0-66 of Ubuntu 16.04 LTS caused major chaos/failures Status in linux package in Ubuntu: Confirmed Status in linux source package in Xenial: Confirmed Bug description: The most obvious issue upon logging in was that there were no network interfaces save the loopback. A review of the logs suggested there were many major problems with the upgrade. Interestingly, the system suggested that I delete all other versions of the kernel immediately after this failed upgrade. This would have rendered the system nearly unusable. This is not the user experience I was thinking of when I chose an LTS version. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-66-generic 4.4.0-66.87 ProcVersionSignature: Ubuntu 4.4.0-63.84-generic 4.4.44 Uname: Linux 4.4.0-63-generic x86_64 NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia ApportVersion: 2.20.1-0ubuntu2.5 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: doug 2348 F.... pulseaudio /dev/snd/controlC2: doug 2348 F.... pulseaudio /dev/snd/controlC0: doug 2348 F.... pulseaudio CurrentDesktop: Unity Date: Sun Mar 12 15:23:41 2017 EcryptfsInUse: Yes HibernationDevice: RESUME=UUID=caabec9a-7ba2-451a-91a5-af1bef3bfc38 InstallationDate: Installed on 2017-01-20 (51 days ago) InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1) IwConfig: lo no wireless extensions. enp6s0 no wireless extensions. MachineType: System manufacturer System Product Name ProcEnviron: LANGUAGE=en_US PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 VESA VGA ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-63-generic root=UUID=ecd4d068-85e7-40c9-8483-d2dbfaadc20b ro rootflags=subvol=@ quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-4.4.0-63-generic N/A linux-backports-modules-4.4.0-63-generic N/A linux-firmware 1.157.8 RfKill: SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 12/10/2013 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 0908 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: P8Z77-V LE PLUS dmi.board.vendor: ASUSTeK COMPUTER INC. dmi.board.version: Rev X.0x dmi.chassis.asset.tag: Asset-1234567890 dmi.chassis.type: 3 dmi.chassis.vendor: Chassis Manufacture dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr0908:bd12/10/2013:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnP8Z77-VLEPLUS:rvrRevX.0x:cvnChassisManufacture:ct3:cvrChassisVersion: dmi.product.name: System Product Name dmi.product.version: System Version dmi.sys.vendor: System manufacturer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1672224/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
