diff --git a/usr.sbin/sysinstall/cdrom.c b/usr.sbin/sysinstall/cdrom.c
index 7264c47249f446..a5029ecb9a29aa 100644
--- a/usr.sbin/sysinstall/cdrom.c
+++ b/usr.sbin/sysinstall/cdrom.c
@@ -164,9 +164,7 @@ mediaInitCDROM(Device *dev)
 	    }
 	    if ((cp = property_find(cd_attr, "CD_MACHINE_ARCH")) != NULL) {
 		if (strcmp(cp, "any") &&
-#ifdef __alpha__
-		  strcmp(cp, "alpha")) {
-#elif defined(PC98)
+#if defined(PC98)
 		  strcmp(cp, "pc98")) {
 #elif defined(__sparc64__)
 		  strcmp(cp, "sparc64")) {
diff --git a/usr.sbin/sysinstall/label.c b/usr.sbin/sysinstall/label.c
index a60c8dc1b67122..08690f6ab14456 100644
--- a/usr.sbin/sysinstall/label.c
+++ b/usr.sbin/sysinstall/label.c
@@ -61,7 +61,7 @@
 /*
  * Minimum partition sizes
  */
-#if defined(__alpha__) || defined(__ia64__) || defined(__sparc64__) || defined(__amd64__)
+#if defined(__ia64__) || defined(__sparc64__) || defined(__amd64__)
 #define ROOT_MIN_SIZE			128
 #else
 #define ROOT_MIN_SIZE			118
@@ -1094,27 +1094,6 @@ diskLabel(Device *dev)
 		    break;
 		}
 
-#ifdef __alpha__
-		/*
-		 * SRM requires that the root partition is at the
-		 * begining of the disk and cannot boot otherwise. 
-		 * Warn Alpha users if they are about to shoot themselves in
-		 * the foot in this way.
-		 *
-		 * Since partitions may not start precisely at offset 0 we
-		 * check for a "close to 0" instead. :-(
-		 */
-		if ((flags & CHUNK_IS_ROOT) && (tmp->offset > 1024)) {
-		    msgConfirm("Your root partition `a' does not seem to be the first\n"
-			       "partition.  The Alpha's firmware can only boot from the\n"
-			       "first partition.  So it is unlikely that your current\n"
-			       "disk layout will be bootable boot after installation.\n"
-			       "\n"
-			       "Please allocate the root partition before allocating\n"
-			       "any others.\n");
-		}
-#endif	/* alpha */
-
 		tmp->private_data = p;
 		tmp->private_free = safe_free;
 		if (variable_cmp(DISK_LABELLED, "written"))
diff --git a/usr.sbin/sysinstall/main.c b/usr.sbin/sysinstall/main.c
index abea76c015ef67..292038018214c2 100644
--- a/usr.sbin/sysinstall/main.c
+++ b/usr.sbin/sysinstall/main.c
@@ -198,7 +198,7 @@ main(int argc, char **argv)
 	choice = scroll = curr = max = 0;
 	dmenuOpen(&MenuInitial, &choice, &scroll, &curr, &max, TRUE);
 	if (getpid() != 1
-#if defined(__alpha__) || defined(__sparc64__)
+#if defined(__sparc64__)
 	    || !msgNoYes("Are you sure you wish to exit?  The system will halt.")
 #else
 	    || !msgNoYes("Are you sure you wish to exit?  The system will reboot\n"
diff --git a/usr.sbin/sysinstall/sysinstall.8 b/usr.sbin/sysinstall/sysinstall.8
index cb1de790a6e4d6..9bdcf7fbfac466 100644
--- a/usr.sbin/sysinstall/sysinstall.8
+++ b/usr.sbin/sysinstall/sysinstall.8
@@ -878,9 +878,9 @@ This property is normally only used with
 .Fx
 products that contain
 CDs for different architectures, to provide better error messages if
-users try to install Alpha packages on an i386 machine.
+users try to install packages built for the wrong architecture.
 For example,
-.Dq Li "CD_MACHINE_ARCH = alpha" .
+.Dq Li "CD_MACHINE_ARCH = amd64" .
 .It Va CD_VOLUME
 In a multi-volume collection (such as the
 .Fx
diff --git a/usr.sbin/sysinstall/sysinstall.h b/usr.sbin/sysinstall/sysinstall.h
index 107a2ac6a16014..b1dd5b9ab6cdfc 100644
--- a/usr.sbin/sysinstall/sysinstall.h
+++ b/usr.sbin/sysinstall/sysinstall.h
@@ -52,7 +52,7 @@
 
 /*** Defines ***/
 
-#if defined(__i386__) || defined(__alpha__) || defined(__amd64__)
+#if defined(__i386__) || defined(__amd64__)
 #define	WITH_SYSCONS
 #define	WITH_MICE
 #endif
diff --git a/usr.sbin/sysinstall/system.c b/usr.sbin/sysinstall/system.c
index a5d8aa9b02cf6b..4ee6e4f9491ab3 100644
--- a/usr.sbin/sysinstall/system.c
+++ b/usr.sbin/sysinstall/system.c
@@ -190,10 +190,6 @@ systemInitialize(int argc, char **argv)
 	setenv("PATH", "/stand:/bin:/sbin:/usr/sbin:/usr/bin:/mnt/bin:/mnt/sbin:/mnt/usr/sbin:/mnt/usr/bin:/usr/X11R6/bin", 1);
 	setbuf(stdin, 0);
 	setbuf(stderr, 0);
-#ifdef __alpha__
-	i = 0;
-	sysctlbyname("machdep.unaligned_print", NULL, 0, &i, sizeof(i));
-#endif
 #if 0
 	signal(SIGCHLD, reap_children);
 #endif
@@ -261,7 +257,7 @@ systemShutdown(int status)
     if (RunningAsInit) {
 	/* Put the console back */
 	ioctl(0, VT_ACTIVATE, 2);
-#if defined(__alpha__) || defined(__sparc64__)
+#if defined(__sparc64__)
 	reboot(RB_HALT);
 #else
 	reboot(RB_AUTOBOOT);