Hi Anders, thanks for your testing. You can show all the initrd scripts debug output to console, for that you'd need to add the kernel parameter "debug=vc" for example. But I don't suggest to do that here, since you seem not able to capture the full console log in plain/text form. Pictures/snapshots might help to spot some issue, but they are very limited.
So, instead of dumping the output to console, I'll suggest you 2 more tests: a) Add the following parameter to kernel command-line: "debug" . With that, boot normally, and collect/save the following file, in order to attach it here: "/run/initramfs/initramfs.debug" . This is the full output of initrd scripts executed. After that, try the kdump - you need to be sure it inherited this "debug" flag (check the kdump command-line in "kdump-config show" output to validate it's there). Kdump will fail, and you can try to SSH the file from the (initramfs) failure shell (or even dump it there using the "cat" command and grab some pictures, specially from the final portions of it). You may try to disconnect and reconnect the keyboard, or use another USB port to see if you can get that working in the failing (initramfs) shell. b) Please execute the following 2 commands and submit the 2 resulting files here: lsinitramfs /boot/initrd.img-$(uname -r) > regular_initrd.out lsinitramfs /var/lib/kdump/initrd.img-$(uname -r) > kdump_initrd.out Thanks in advance! -- 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/1913639 Title: linux-crashdump is not capable of mounting zfs root pools Status in linux package in Ubuntu: Confirmed Bug description: I could not get any crash logs after using this package. I tried using it and triggering a crash from a terminal. The alternate kernel boots successfully, but the initrd for linux-crashdump is not capable of loading my rpool. running: linux-crashdump:amd64 5.4.0.64.67 ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: linux-crashdump:amd64 (not installed) ProcVersionSignature: Ubuntu 5.4.0-65.73-generic 5.4.78 Uname: Linux 5.4.0-65-generic x86_64 NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair ApportVersion: 2.20.11-0ubuntu27.14 Architecture: amd64 CasperMD5CheckResult: skip CurrentDesktop: KDE Date: Thu Jan 28 20:15:19 2021 InstallationDate: Installed on 2019-08-15 (532 days ago) InstallationMedia: Ubuntu 18.04.3 LTS "Bionic Beaver" - Release amd64 (20190805) IwConfig: eno1 no wireless extensions. lo no wireless extensions. MachineType: MSI MS-7885 ProcFB: 0 amdgpudrmfb ProcKernelCmdLine: BOOT_IMAGE=/BOOT/ubuntu_fnpezh@/vmlinuz-5.4.0-65-generic root=ZFS=rpool/ROOT/ubuntu_fnpezh ro usbcore.autosuspend=-1 quiet splash intel_iommu=on iommu=pt vfio-pci.ids=10de:1b81,10de:10f0,1b21:1242 video=efifb:off,vesafb=off,simplefb=off nouveau.modeset=0 rd.driver.blacklist=nouveau,nvidia,nvidia_uvm,nvidia_drm,nvidia_modeset crashkernel=2096M-:2096M vt.handoff=1 RelatedPackageVersions: linux-restricted-modules-5.4.0-65-generic N/A linux-backports-modules-5.4.0-65-generic N/A linux-firmware 1.187.8 RfKill: 0: hci0: Bluetooth Soft blocked: no Hard blocked: no SourcePackage: linux UpgradeStatus: Upgraded to focal on 2020-04-22 (281 days ago) dmi.bios.date: 06/15/2018 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 1.E0 dmi.board.asset.tag: Default string dmi.board.name: X99A SLI PLUS(MS-7885) dmi.board.vendor: MSI dmi.board.version: 1.0 dmi.chassis.asset.tag: Default string dmi.chassis.type: 3 dmi.chassis.vendor: MSI dmi.chassis.version: 1.0 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1.E0:bd06/15/2018:svnMSI:pnMS-7885:pvr1.0:rvnMSI:rnX99ASLIPLUS(MS-7885):rvr1.0:cvnMSI:ct3:cvr1.0: dmi.product.family: Default string dmi.product.name: MS-7885 dmi.product.sku: Default string dmi.product.version: 1.0 dmi.sys.vendor: MSI modified.conffile..etc.default.apport: # set this to 0 to disable apport, or to 1 to enable it # you can temporarily override this with # sudo service apport start force_start=1 enabled=0 mtime.conffile..etc.default.apport: 2020-03-23T10:46:45.197962 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1913639/+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
