Ubuntu 26.10 drops Btrfs, XFS & ZFS /boot with Secure Boot
Canonical has changed how Ubuntu 26.10 boots on system with Secure Boot enabled, in an effort to reduce the attack surface of the boot process. Ubuntu 26.10’s signed build of GRUB, which is only used on systems if Secure Boot is turned on, no longer supports /boot on Btrfs, XFS,Continue Reading












