fix(runtime): make Copy to RAM switch live backing

audit/internal/platform/install_to_ram_linux.go

@@ -7,7 +7,9 @@ import (
 	"syscall"
 )
 
-const ioctlLoopChangeFD = 0x4C08
+// LOOP_CHANGE_FD from <linux/loop.h>. 0x4C08 is LOOP_SET_DIRECT_IO and was
+// the reason every runtime Copy to RAM attempt ended in EINVAL.
+const ioctlLoopChangeFD = 0x4C06
 
 func loopChangeFD(loopDev, newFile string) error {
 	lf, err := os.OpenFile(loopDev, os.O_RDWR, 0)