I had a similar experience doing a clean install with the Experimental ZFS option. This happened repeatably for devices /dev/sda and /dev/sda1, i.e., the installer refused to install to either device and I ended up manually fixing this issue from chroot operations from the livecd.
-- 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/1847325 Title: ZFS Installer refuses to install the boot loader on both disks Status in zfs-linux package in Ubuntu: New Bug description: I installed Ubuntu Mate 19.10 on ZFS in Virtualbox on sdb, while sda has Ubuntu 19.10 on ext4 with both zfsutils-linux and zfs-initramfs installed. The installer refused to install a boot loader on both sda and sdb, but after booting from ext4 and: updating /etc/default/grub update-grub and grub-install /dev/sda I have a nice dual boot system in Virtualbox :slight_smile: I think the installer should have installed the boot loader. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/zfs-linux/+bug/1847325/+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
