After all, this was a hack to promote the filesystem and get it back to work. The system should now be back to normal, but you might want to revert to the mainline ZFS version despite the bug. # apt reinstall zfs-initramfs zfs-zed zfsutils-linux
Things will only work if zfs and zfs-kmod match versions. Upgrading back to 510 will bring the error back and make it even more difficult to fix. Revert to NVIDIA metapackage 470 (if this is what broke your system).
NETATALK DISCONNECT IDLE USERS DRIVERS
# zfs promote rpool/ROOT/ubuntu_733qyk Sort graphical drivers If this doesn’t work for you, reboot in recovery mode again and promote the filesystem manually.
NETATALK DISCONNECT IDLE USERS INSTALL
# apt install zfs-initramfs zfs-zed zfsutils-linux Update the system and install a 3rd party ZFS set of tools. You can temporarily assign a DHCP address to one of the network interfaces. Make sure you can connect to the internet. # systemctl status rviceįeb 17 11:11:24 ab350 systemd zsysctl: level=error msg="couldn't commit: couldn't promote dataset "rpool/ROOT/ubuntu_733qyk": couldn't promote "rpool/ROOT/ubuntu_733qyk": not a cloned filesystem"Īttempting to promote it manually fails: # zfs promote rpool/ROOT/ubuntu_733qykĬannot promote `rpool/ROOT/ubuntu_733qyk` : not a cloned filesystem *Ubuntu 20.04.3 LTS, with Linux 5.xx.x-xx-generic (recovery mode)Ĭheck the reason for the error. Restart Ubuntu and boot in recovery mode He created two posts raising it, links provided here. Many thanks to Lockszmith for his research in identifying the issue and finding a fix. These are the steps I followed to fix it. The “ 20.04 rvice fails” message is quite interesting and it seems that the overall cause is a mismatch of user/kernel zfs components. This wasn’t the case on another separate system that had the same upgrade. Stopped User Manager for UID 1000.Īttempting to revert from a snapshot ends up with the same error message. See 'systemctl status rvice' for details. It will either hang with a black screen and blinking cursor on the top left or show the following error message: Failed to start Mark current ZSYS boot as successful.
On Ubuntu 20.04 after installing the NVIDIA driver 510 metapackage the system stopped booting.
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