Add boot repair tools and rescue guide section

Packages added: os-prober, syslinux, ms-sys

Rescue guide section 3 covers:
- Chroot into broken system (including ZFS)
- Reinstall GRUB (UEFI and Legacy)
- Fix UEFI boot entries with efibootmgr
- Rebuild initramfs with mkinitcpio
- Dual-boot GRUB/Windows with os-prober
- Restore Windows MBR with ms-sys
- ZFS-specific boot issues (hostid, hooks)
- Emergency GRUB command line boot

1 files changed, 5 insertions, 0 deletions

diff --git a/build.sh b/build.sh
index c758362..1c4ef9e 100755
--- a/build.sh
+++ b/build.sh
@@ -144,6 +144,11 @@ sleuthkit
 safecopy
 smartmontools
 
+# Boot repair
+os-prober
+syslinux
+ms-sys
+
 EOF
 
 # Get kernel version for ISO naming