x86: add grub2 iso support

[openwrt/svn-archive/archive.git] / target / linux / x86 / base-files / lib / preinit / 20_check_iso

diff --git a/target/linux/x86/base-files/lib/preinit/20_check_iso b/target/linux/x86/base-files/lib/preinit/20_check_iso
new file mode 100644 (file)
index 0000000..beff6eb
--- /dev/null
+++ b/target/linux/x86/base-files/lib/preinit/20_check_iso
@@ -0,0 +1,5 @@
+check_for_iso() {
+       grep -qE '/dev/root.*iso9660' /proc/mounts && ramoverlay
+}
+
+boot_hook_add preinit_mount_root check_for_iso