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. You're reading Ubuntu 26.10 drops Btrfs, XFS & ZFS /boot with Secure Boot, a blog post from OMG! Ubuntu. Do not reproduce elsewhere without permission.

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