made things working:

- ramdisk name calculating
- lowmem parameter, ramdisk will not be loaded, if specified
- stagename parameter appeared, eq "altinst" if not specified

cdrom.c

@@ -68,7 +68,7 @@ static enum return_type do_with_device(char * dev_name, char * dev_model)
 	log_message("found a " DISTRIB_NAME " CDROM, good news!");
 
 	if (IS_RESCUE) {
-		load_ramdisk();
+		load_ramdisk(NULL);
 		umount(IMAGE_LOCATION);
 	}
 

disk.c

@@ -242,26 +242,6 @@ static enum return_type try_with_device(char *dev_name)
 		add_to_env("PIGGYBACK", "1");
 	}
 
-	if (IS_SPECIAL_STAGE2 || ramdisk_possible()) {
-		/* RAMDISK install */
-		if (access(IMAGE_LOCATION RAMDISK_LOCATION, R_OK)) {
-			stg1_error_message("I can't find the " DISTRIB_NAME " Distribution in the specified directory. "
-							   "(I need the subdirectory " RAMDISK_LOCATION ")\n"
-							   "Here's a short extract of the files in the directory:\n"
-							   "%s", disk_extract_list_directory(IMAGE_LOCATION));
-			loumount();
-			umount(IMAGE_LOCATION);
-			return try_with_device(dev_name);
-		}
-		if (load_ramdisk() != RETURN_OK) {
-			stg1_error_message("Could not load program into memory.");
-			loumount();
-			umount(IMAGE_LOCATION);
-			return try_with_device(dev_name);
-		}
-	} else {
-		/* LIVE install */
-		char p;
 	if (access(get_ramdisk_path(iso ? NULL : location_full), R_OK)) {
 		stg1_error_message("I can't find the " DISTRIB_NAME " Distribution in the specified directory. "
 						   "Here's a short extract of the files in the directory:\n"
@@ -270,11 +250,20 @@ static enum return_type try_with_device(char *dev_name)
 			umount(IMAGE_LOCATION);
 			return try_with_device(dev_name);
 	}
-		log_message("found the " DISTRIB_NAME " Installation, good news!");
-	}
 
+	log_message("found the " DISTRIB_NAME " Installation, good news!");
+
+	if (!IS_LOWMEM && ramdisk_possible()) {
+		if (load_ramdisk(iso ? NULL : location_full) != RETURN_OK) {
+			stg1_error_message("Could not load program into memory.");
+			loumount();
+			umount(IMAGE_LOCATION);
+			return try_with_device(dev_name);
+		}
+	} else {
 		do_losetup(LIVE_DEVICE, get_ramdisk_path(iso ? NULL : location_full));
 		my_mount(LIVE_DEVICE, STAGE2_LOCATION, (IS_LIVE) ? LIVEFS : STAGE2FS, 0);
+	}
 	
 	method_name = strdup("disk");
 	add_to_env("DEVICE", choice);

stage1.c

@@ -396,10 +396,6 @@ int main(int argc, char **argv, char **env)
 
 	handle_pcmcia(&pcmcia_adapter);
 
-	if (IS_CHANGEDISK)
-		stg1_info_message("You are starting the installation with an alternate booting method. "
-				  "Please change your disk, and insert the Installation disk.");
-
 	if (IS_RESCUE && total_memory() < MEM_LIMIT_RESCUE) {
 		stg1_error_message("You are starting the rescue with a low memory configuration. "
 				   "From that point, experience showed us that the program may stop "

stage1.h

@@ -37,7 +37,7 @@ extern char * interactive_fifo;
 #define MODE_RESCUE         (1 << 3)
 #define MODE_AUTOMATIC	    (1 << 4)
 #define MODE_LOWMEM	        (1 << 5)
-#define MODE_SPECIAL_STAGE2 (1 << 8)
+#define MODE_STAGENAME      (1 << 8)
 #define MODE_RAMDISK        (1 << 9)
 #define MODE_CHANGEDISK     (1 << 10)
 #define MODE_UPDATEMODULES  (1 << 11)
@@ -48,7 +48,7 @@ extern char * interactive_fifo;
 #define IS_LIVE        (get_param(MODE_LIVE))
 #define IS_AUTOMATIC   (get_param(MODE_AUTOMATIC))
 #define IS_LOWMEM      (get_param(MODE_LOWMEM))
-#define IS_SPECIAL_STAGE2 (get_param(MODE_SPECIAL_STAGE2))
+#define IS_STAGENAME   (get_param(MODE_STAGENAME))
 #define IS_RAMDISK     (get_param(MODE_RAMDISK))
 #define IS_CHANGEDISK  (get_param(MODE_CHANGEDISK))
 #define IS_UPDATEMODULES (get_param(MODE_UPDATEMODULES))

tools.c

@@ -93,7 +93,7 @@ void process_cmdline(void)
 		if (!strcmp(name, "updatemodules")) set_param(MODE_UPDATEMODULES);
 		if (!strcmp(name, "rescue")) set_param(MODE_RESCUE);
 		if (!strcmp(name, "live")) set_param(MODE_LIVE);
-		if (!strcmp(name, "special_stage2")) set_param(MODE_SPECIAL_STAGE2);
+		if (!strcmp(name, "stagename")) set_param(MODE_STAGENAME);
 		if (!strcmp(name, "lowmem")) set_param(MODE_LOWMEM);
 		if (!strcmp(name, "automatic")) {
 			set_param(MODE_AUTOMATIC);
@@ -168,8 +168,8 @@ void set_param(int i)
 {
 	stage1_mode |= i;
 	if (i == MODE_RESCUE) {
-		set_param_valued("special_stage2", "rescue");
-		set_param(MODE_SPECIAL_STAGE2);
+		set_param_valued("stagename", "rescue");
+		set_param(MODE_STAGENAME);
 	}
 }
 
@@ -315,15 +315,12 @@ enum return_type load_ramdisk_fd(int source_fd, int size)
 char * get_ramdisk_realname(void)
 {
 	char img_name[500];
-	char * stg2_name = get_param_valued("special_stage2");
+	char * stg2_name = get_param_valued("stagename");
 	char * begin_img = RAMDISK_LOCATION;
 
 	if (!stg2_name)
 		stg2_name = "altinst";
 
-	if (IS_LIVE)
-		stg2_name = "altlinux";
-	
 	strcpy(img_name, begin_img);
 	strcat(img_name, stg2_name);
 
@@ -341,13 +338,13 @@ char * get_ramdisk_path(char *mount_path)
     return strdup(img_name);
 }
 
-enum return_type load_ramdisk(void)
+enum return_type load_ramdisk(char *mount_path)
 {
 	int st2_fd;
 	struct stat statr;
 	char img_name[500];
 
-	strcpy(img_name, IMAGE_LOCATION);
+	strcpy(img_name, mount_path ? mount_path : IMAGE_LOCATION);
 	strcat(img_name, get_ramdisk_realname());
 
 	log_message("trying to load %s as a ramdisk", img_name);

tools.h

@@ -32,7 +32,7 @@ int charstar_to_int(char * s);
 int total_memory(void);
 int ramdisk_possible(void);
 char * get_ramdisk_realname(void);
-enum return_type load_ramdisk(void);
+enum return_type load_ramdisk(char *);
 enum return_type load_ramdisk_fd(int ramdisk_fd, int size);
 void * memdup(void *src, size_t size);
 void add_to_env(char * name, char * value);