Split monolithic script into modular functions and add subcommand interface:
- Add scan subcommand to list FWS installations
- Add repair subcommand with actions: grub, initramfs, pacman, pacman-update, all
- Add shell subcommand for chroot terminal access
- Implement support for operating on running system (no mount/chroot needed)
- Extract detection and mounting logic into reusable functions
- Add in_target() helper to execute commands in target (chroot or direct)
- Improve mkinitcpio warning documentation
- Maintain backward-compatible TUI mode when no args provided
- Enable GUI (fws-recovery-gui) to pilot repairs via subcommands
Add a comprehensive system recovery tool that:
- Detects FWS installations on disks including LVM volumes
- Mounts target root filesystem with /boot and ESP partitions
- Provides interactive menu for common repair operations:
- GRUB reinstallation (UEFI and BIOS support)
- Initramfs regeneration via mkinitcpio
- Pacman database repair and system updates
- Interactive chroot shell for manual intervention
The script handles automatic LVM activation, filesystem detection via os-release, and proper cleanup on exit.
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