--- apt-0.5.15cnc6/apt-pkg/contrib/cdromutl.cc~	2004-07-20 15:12:54 +0400
+++ apt-0.5.15cnc6/apt-pkg/contrib/cdromutl.cc	2004-07-20 15:23:42 +0400
@@ -34,6 +34,8 @@
 #include <sys/stat.h>
 #include <unistd.h>
 #include <stdio.h>
+
+#include <mntent.h>
 									/*}}}*/
 
 // IsMounted - Returns true if the mount point is mounted		/*{{{*/
@@ -100,6 +102,19 @@ bool UnmountCdrom(string Path)
       }
       else
       {
+	 FILE *f;
+	 struct mntent *mnt;
+	 if ((f = setmntent (MOUNTED, "r")) != NULL)
+	 {
+	    while ((mnt = getmntent (f)) != NULL)
+	    if (strcmp (Path.c_str(), mnt->mnt_fsname) == 0)
+	    {
+		if ( (strcmp("subfs", mnt->mnt_type) != 0) && (strcmp("supermount", mnt->mnt_type) != 0) )
+    		    _exit(0);
+	    }
+	    endmntent (f);
+	 }
+
 	 const char *Args[10];
 	 Args[0] = "umount";
 	 Args[1] = Path.c_str();