Package: wnpp Severity: wishlist * Package name : efibootnext Version : 0.1.1 Upstream Contact: Thomas Grainger <[email protected]> * URL : https://github.com/graingert/efibootnext * License : MIT Programming Lang: Shell Description : Reboot to Windows via EFI BootNext (BitLocker-safe)
Adds a GRUB menu entry that reboots into Windows (or other EFI OS) by setting the EFI BootNext variable from the initramfs, avoiding the need to change the default GRUB entry or risk breaking BitLocker by chainloading the Windows bootloader directly. Chainloading \EFI\Microsoft\Boot\bootmgfw.efi from GRUB breaks TPM PCR measurements, causing BitLocker to prompt for a recovery key. Instead, efibootnext boots a minimal Linux kernel/initramfs that calls efibootmgr --bootnext and reboots, so the firmware boots Windows natively with correct TPM state. The premount script runs before the LUKS prompt, so there is no need to enter the Linux disk encryption password just to boot Windows. The GRUB menu entry is auto-generated during update-grub -- it detects Windows via os-prober, matches the EFI path to a boot entry via efibootmgr, and finds the /boot partition via GRUB's prepare_grub_to_access_device, so no manual configuration is needed. Debian packaging is already available upstream.
