I suspect this is due to my not having cryptsetup-initramfs installed. Without that, cryptroot never gets created.
cryptsetup-initramfs's /usr/share/local-top/cryptroot has this: mkdir -p /cryptroot # might not exist yet if the main system has no crypttab -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to zfs-linux in Ubuntu. https://bugs.launchpad.net/bugs/1882975 Title: crypttab not found error causes boot failure with changes in zfs- initramfs_0.8.4-1ubuntu5 Status in zfs-linux package in Ubuntu: New Bug description: boot ends before rpool loads with a failure to find the crypttab file, which doesn't exist. Maybe this has a dependency upon a package that makes that? ProblemType: Bug DistroRelease: Ubuntu 20.10 Package: zfs-initramfs 0.8.4-1ubuntu5 ProcVersionSignature: Ubuntu 5.4.0-34.38-generic 5.4.41 Uname: Linux 5.4.0-34-generic x86_64 NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair ApportVersion: 2.20.11-0ubuntu38 Architecture: amd64 CasperMD5CheckResult: skip Date: Wed Jun 10 11:42:55 2020 InstallationDate: Installed on 2019-10-19 (235 days ago) InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017) ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: zfs-linux UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/zfs-linux/+bug/1882975/+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
