week-end stuff: now supports second stage as a ramdisk

adds better device files handling (some in initrd, others dynamically created)
better logging of detected IDE and SCSI devices

15 files changed, 341 insertions, 122 deletions

diff --git a/mdk-stage1/Makefile b/mdk-stage1/Makefile
index 7e02acb78..793c707c7 100644
--- a/mdk-stage1/Makefile
+++ b/mdk-stage1/Makefile
@@ -27,7 +27,7 @@ ARCH := $(patsubst sparc%,sparc,$(ARCH))
 
 
  #- We can leave "-g" forever since stripping will remove everything
-CFLAGS = -Os -g -Wall -Werror -fomit-frame-pointer
+CFLAGS = -Os -g -Wall -Werror # -fomit-frame-pointer
 INCLUDES = -I.
 DEFS = -D_GNU_SOURCE=1 -DVERSION=\"$(VERSION)\"
 
@@ -104,6 +104,9 @@ stage1-network-diet: $(STAGE1OBJS) stage1-network.o $(NETOBJS)
 	gcc -nostdlib -o $@ ../../../tmp/dietlibc/start.o $^ ../../../tmp/dietlibc/dietlibc.a
 	strip -s $@
 
+test: stage1-network.o $(STAGE1OBJS) $(NETOBJS)
+	$(CC) -o st1 $^
+
 .c.o:
 	$(COMPILE) -c $<
 
diff --git a/mdk-stage1/cdrom.c b/mdk-stage1/cdrom.c
index 1ac84979c..7a43e8ccc 100644
--- a/mdk-stage1/cdrom.c
+++ b/mdk-stage1/cdrom.c
@@ -59,10 +59,13 @@ static enum return_type try_with_device(char *dev_name)
 	}
 
 	log_message("found a Linux-Mandrake CDROM, good news!");
-/*
-	if (special_stage2 || total_memory() > 52 * 1024) loadMdkinstStage2();
-	if (rescue) umount("/tmp/rhimage");
-*/
+
+	if (IS_SPECIAL_STAGE2 || ramdisk_possible())
+		load_ramdisk(); /* we don't care about return code, we'll do it live if we failed */
+
+	if (IS_RESCUE) umount("/tmp/image"); /* TOCHECK */
+
+	method_name = strdup("cdrom");
 	return RETURN_OK;
 }
 
@@ -82,7 +85,6 @@ enum return_type cdrom_prepare(void)
 
 	ptr = medias;
 	while (ptr && *ptr) {
-		log_message("have CDROM %s", *ptr);
 		count++;
 		ptr++;
 	}
@@ -96,7 +98,6 @@ enum return_type cdrom_prepare(void)
 	}
 
 	if (count == 1) {
-		log_message("Only one CDROM detected: %s (%s)", *medias, *medias_models);
 		results = try_with_device(*medias);
 		if (results == RETURN_OK)
 			return RETURN_OK;
diff --git a/mdk-stage1/disk.c b/mdk-stage1/disk.c
index e64782471..58658fc3c 100644
--- a/mdk-stage1/disk.c
+++ b/mdk-stage1/disk.c
@@ -32,6 +32,8 @@
 static enum return_type try_with_device(char *dev_name)
 {
 
+	/* I have to do the partition check here */
+
 	return RETURN_OK;
 }
 
@@ -48,7 +50,6 @@ enum return_type disk_prepare(void)
 	
 	medias = get_medias(DISK, QUERY_NAME);
 
-	/* TODO partition check */
 	ptr = medias;
 	while (ptr && *ptr) {
 		log_message("found DISK %s", *ptr);
diff --git a/mdk-stage1/log.c b/mdk-stage1/log.c
index 173ebe520..8faa166c0 100644
--- a/mdk-stage1/log.c
+++ b/mdk-stage1/log.c
@@ -65,9 +65,26 @@ void log_message(const char * s, ...)
 
 void log_perror(char *msg)
 {
-	log_message("%s %s", strerror(errno), msg);
+	log_message("%s: %s", msg, strerror(errno));
 }
 
+void log_progression(int divide_for_count)
+{
+	static int count = 0;
+	if (count <= 0) {
+		fprintf(logfile, ".");
+		fflush(logfile);
+		count = divide_for_count;
+	}
+	else
+		count--;
+}
+
+void log_progression_done(void)
+{
+	fprintf(logfile, "done\n");
+}
+	
 
 void open_log(void)
 {
diff --git a/mdk-stage1/log.h b/mdk-stage1/log.h
index 65e0a2416..7e206c881 100644
--- a/mdk-stage1/log.h
+++ b/mdk-stage1/log.h
@@ -29,6 +29,8 @@ void log_message(const char * s, ...);
 void vlog_message(const char * s, va_list args);
 void vlog_message_nobs(const char * s, va_list args);
 void log_perror(char *msg);
+void log_progression(int divide_for_count);
+void log_progression_done(void);
 void open_log(void);
 void close_log(void);
 
diff --git a/mdk-stage1/modules.c b/mdk-stage1/modules.c
index cdf50d9eb..70bdc4a9f 100644
--- a/mdk-stage1/modules.c
+++ b/mdk-stage1/modules.c
@@ -198,6 +198,5 @@ int my_insmod(char * mod_name)
 
 enum return_type ask_scsi_insmod(void)
 {
-	error_message("Try to load a SCSI module");
-	return RETURN_OK;
+	return ask_yes_no("Try to load a SCSI module");
 }
diff --git a/mdk-stage1/mount.c b/mdk-stage1/mount.c
index 9a5dfca55..ef0c0f676 100644
--- a/mdk-stage1/mount.c
+++ b/mdk-stage1/mount.c
@@ -30,16 +30,88 @@
 #include "mount.h"
 
 
+/* WARNING: this won't work if the argument is not /dev/ based */
+static int ensure_dev_exists(char *dev)
+{
+	int major, minor;
+	int type = S_IFBLK; /* my default type is block. don't forget to change for chars */
+	char * name;
+	struct stat buf;
+	
+	name = &dev[5]; /* we really need that dev be passed as /dev/something.. */
+
+	if (!stat(dev, &buf))
+		return 0; /* if the file already exists, we assume it's correct */
+
+	if (name[0] == 's' && name[1] == 'd') {
+		/* SCSI disks */
+		major = 8;
+		minor = (name[2] - 'a') << 4;
+		if (name[3] && name[4])
+			minor += 10 + (name[4] - '0');
+		else if (name[3])
+			minor += (name[3] - '0');
+	} else if (name[0] == 'h' && name[1] == 'd') {
+		/* IDE disks/cd's */
+		if (name[2] == 'a')
+			major = 3, minor = 0;
+		else if (name[2] == 'b')
+			major = 3, minor = 64;
+		else if (name[2] == 'c')
+			major = 22, minor = 0;
+		else if (name[2] == 'd')
+			major = 22, minor = 64;
+		else if (name[2] == 'e')
+			major = 33, minor = 0;
+		else if (name[2] == 'f')
+			major = 33, minor = 64;
+		else if (name[2] == 'g')
+			major = 34, minor = 0;
+		else if (name[2] == 'h')
+			major = 34, minor = 64;
+		else
+			return -1;
+		
+		if (name[3] && name[4])
+			minor += 10 + (name[4] - '0');
+		else if (name[3])
+			minor += (name[3] - '0');
+	} else if (name[0] == 's' && name[1] == 'c' && name[2] == 'd') {
+		/* SCSI cd's */
+		major = 11;
+		minor = name[3] - '0';
+	} else {
+		log_message("I don't know how to create device %s, please post bugreport to me!", dev);
+		return -1;
+	}
+
+	if (mknod(dev, type | 0600, makedev(major, minor))) {
+		log_perror(dev);
+		return -1;
+	}
+	
+	return 0;
+}
+
+
+/* mounts, creating the device if needed+possible */
 int my_mount(char *dev, char *location, char *fs)
 {
 	unsigned long flags;
 	char * opts = NULL;
 	struct stat buf;
+	int rc;
+
+	rc = ensure_dev_exists(dev);
+
+	if (rc != 0) {
+		log_message("could not create required device file");
+		return -1;
+	}
 
 	log_message("mounting %s on %s as type %s", dev, location, fs);
 
 	if (stat(location, &buf)) {
-		log_message("creating dir %s", location);
 		if (mkdir(location, 0755)) {
 			log_message("could not create location dir");
 			return -1;
@@ -64,5 +136,10 @@ int my_mount(char *dev, char *location, char *fs)
 	if (!strcmp(fs, "iso9660"))
 		flags |= MS_RDONLY;
 
-	return mount(dev, location, fs, flags, opts);
+	rc = mount(dev, location, fs, flags, opts);
+
+	if (rc != 0)
+		log_perror(dev);
+
+	return rc;
 }
diff --git a/mdk-stage1/newt-frontend.c b/mdk-stage1/newt-frontend.c
index 9321108d6..2114cbc70 100644
--- a/mdk-stage1/newt-frontend.c
+++ b/mdk-stage1/newt-frontend.c
@@ -61,7 +61,7 @@ void error_message(char *msg)
 
 void wait_message(char *msg, ...)
 {
-	int width = 36;
+	int width = strlen(msg) + 12;
 	int height = 3;
 	char * title = "Please wait...";
 	newtComponent t, f;
diff --git a/mdk-stage1/probing.c b/mdk-stage1/probing.c
index e2bd61aae..0a012ad95 100644
--- a/mdk-stage1/probing.c
+++ b/mdk-stage1/probing.c
@@ -47,7 +47,7 @@ static void pci_probing(enum driver_type type)
 	if (IS_EXPERT) {
 		error_message("You should be asked if you have some SCSI.");
 	} else {
-		wait_message("Installing SCSI module...");
+		wait_message("Installing SCSI module..."); sleep(1);
 		remove_wait_message();
 	}
 }
@@ -127,11 +127,11 @@ static void find_media(void)
 			tmp[count].model = strdup(buf);
 		}
 
+		log_message("IDE/%d: %s is a %s", tmp[count].type, tmp[count].name, tmp[count].model);
 		tmp[count].bus = IDE;
 		count++;
     	}
 
-	log_message("found %d IDE media", count);
 
 
 	/* ----------------------------------------------- */
@@ -215,7 +215,7 @@ static void find_media(void)
 				while (*chptr == ' ') chptr--;
 				*(chptr + 1) = '\0';
 				
-				strcat(tmp_model, ", ");
+				strcat(tmp_model, " ");
 				strcat(tmp_model, start);
 
 				tmp[count].model = strdup(tmp_model);
@@ -242,6 +242,7 @@ static void find_media(void)
 
 				if (*tmp_name) {
 					tmp[count].name = strdup(tmp_name);
+					log_message("SCSI/%d: %s is a %s", tmp[count].type, tmp[count].name, tmp[count].model);
 					tmp[count].bus = SCSI;
 					count++;
 				}
@@ -255,8 +256,6 @@ static void find_media(void)
 	end_scsi:
 	}
 
-	log_message("adding SCSI totals %d media", count);
-
     
 	/* ----------------------------------------------- */
 	tmp[count].name = NULL;
diff --git a/mdk-stage1/probing.h b/mdk-stage1/probing.h
index ee221f01b..8fe43251e 100644
--- a/mdk-stage1/probing.h
+++ b/mdk-stage1/probing.h
@@ -22,7 +22,7 @@
 #ifndef _PROBING_H_
 #define _PROBING_H_
 
-enum media_type { DISK, FLOPPY, CDROM, TAPE, UNKNOWN_MEDIA };
+enum media_type { CDROM, DISK, FLOPPY, TAPE, UNKNOWN_MEDIA };
 
 enum bus_type { IDE, SCSI };
 
diff --git a/mdk-stage1/stage1-data/stage1-with-sash.tar.bz2 b/mdk-stage1/stage1-data/stage1-with-sash.tar.bz2
index 52c15a238..5deeaa266 100644
--- a/mdk-stage1/stage1-data/stage1-with-sash.tar.bz2
+++ b/mdk-stage1/stage1-data/stage1-with-sash.tar.bz2
diff --git a/mdk-stage1/stage1.c b/mdk-stage1/stage1.c
index f984b3058..04cba80e7 100644
--- a/mdk-stage1/stage1.c
+++ b/mdk-stage1/stage1.c
@@ -38,7 +38,7 @@
 #include "probing.h"
 #include "frontend.h"
 #include "modules.h"
-
+#include "tools.h"
 #include "cdrom.h"
 #include "network.h"
 #include "disk.h"
@@ -46,74 +46,16 @@
 
 /* globals */
 
-struct cmdline_elem params[500];
-int stage1_mode = 0;
 char * method_name;
 
 
 void fatal_error(char *msg)
 {
-	printf("FATAL ERROR IN STAGE1: %s\n\nI can't recover from this, please reboot manually and send bugreport.\n", msg);
+	printf("FATAL ERROR IN STAGE1: %s\n\nI can't recover from this.\n", msg);
 	while (1);
 }
 
 
-void process_cmdline(void)
-{
-	char buf[512];
-	int fd, size, i, p;
-	
-	log_message("opening /proc/cmdline... ");
-	
-	if ((fd = open("/proc/cmdline", O_RDONLY, 0)) == -1)
-		fatal_error("could not open /proc/cmdline");
-	
-	size = read(fd, buf, sizeof(buf));
-	buf[size-1] = 0;
-	close(fd);
-
-	log_message("\t%s", buf);
-
-	i = 0; p = 0;
-	while (buf[i] != 0) {
-		char *name, *value = NULL;
-		int j = i;
-		while (buf[i] != ' ' && buf[i] != '=' && buf[i] != 0)
-			i++;
-		if (i == j) {
-			i++;
-			continue;
-		}
-		name = (char *) malloc(i-j + 1);
-		memcpy(name, &buf[j], i-j);
-		name[i-j] = 0;
-
-		if (buf[i] == '=') {
-			int k = i+1;
-			i++;
-			while (buf[i] != ' ' && buf[i] != 0)
-				i++;
-			value = (char *) malloc(i-k + 1);
-			memcpy(value, &buf[k], i-k);
-			value[i-k] = 0;
-		}
-
-		params[p].name = name;
-		params[p].value = value;
-		p++;
-		i++;
-		if (!strcmp(name, "expert")) stage1_mode |= MODE_EXPERT;
-		if (!strcmp(name, "text")) stage1_mode |= MODE_TEXT;
-		if (!strcmp(name, "rescue")) stage1_mode |= MODE_RESCUE;
-		if (!strcmp(name, "pcmcia")) stage1_mode |= MODE_PCMCIA;
-		if (!strcmp(name, "cdrom")) stage1_mode |= MODE_CDROM;
-	}
-	params[p].name = NULL;
-
-	log_message("\tgot %d args", p);
-}
-
-
 /* spawns a shell on console #2 */
 void spawn_shell(void)
 {
@@ -184,17 +126,20 @@ enum return_type method_select_and_prepare(void)
 		return results;
 
 	if (!strcmp(choice, cdrom_install))
-		return cdrom_prepare();
+		results = cdrom_prepare();
 	else if (!strcmp(choice, disk_install))
-		return disk_prepare();
+		results = disk_prepare();
 	else if (!strcmp(choice, network_nfs_install))
-		return nfs_prepare();
+		results = nfs_prepare();
 	else if (!strcmp(choice, network_ftp_install))
-		return ftp_prepare();
+		results = ftp_prepare();
 	else if (!strcmp(choice, network_http_install))
-		return http_prepare();
+		results = http_prepare();
+
+	if (results != RETURN_OK)
+		method_select_and_prepare();
 
-	return RETURN_ERROR;
+	return RETURN_OK;
 }
 
 
@@ -204,51 +149,49 @@ int main(int argc, char **argv)
 	char ** argptr;
 	char * stage2_args[30];
 
-
 	if (getpid() > 50)
-		stage1_mode |= MODE_TESTING;
+		set_param(MODE_TESTING);
 
 	open_log();
-
 	log_message("welcome to the Linux-Mandrake install (stage1, version " VERSION " built " __DATE__ " " __TIME__")");
-
 	process_cmdline();
 	spawn_shell();
 	if (load_modules_dependencies())
 		fatal_error("could not open and parse modules dependencies");
-
 	init_frontend();
 
-	if (IS_CDROM)
+	if (IS_CDROM) {
+		/* try as automatic as possible with cdrom bootdisk */
 		ret = cdrom_prepare();
+		if (ret != RETURN_OK)
+			ret = method_select_and_prepare();
+	}
 	else
 		ret = method_select_and_prepare();
 
-	while (ret == RETURN_BACK)
-		ret = method_select_and_prepare();
-
 	finish_frontend();
+	close_log();
 
-	if (ret == RETURN_ERROR)
+	if (ret != RETURN_OK)
 		fatal_error("could not select an installation method");
 
-	if (!IS_LIVE) {
+	if (!IS_RAMDISK) {
 		if (symlink("/tmp/image/Mandrake/mdkinst", "/tmp/stage2") != 0)
 			fatal_error("symlink to /tmp/stage2 failed");
 	}
 
-	close_log();
+	if (IS_TESTING)
+	  return 0;
 
 	argptr = stage2_args;
 	*argptr++ = "/usr/bin/runinstall2";
-	*argptr++ = "--method";
 	*argptr++ = method_name;
 	*argptr++ = NULL;
 
 	execv(stage2_args[0], stage2_args);
 
-	printf("error in exec of stage2 :-(");
+	printf("error in exec of stage2 :-(\n");
 	fatal_error(strerror(errno));
 	
-	return 0; /* shut up compiler (we can't get here) */
+	return 0; /* shut up compiler (we can't get here anyway!) */
 }
diff --git a/mdk-stage1/stage1.h b/mdk-stage1/stage1.h
index 2f193a065..d224babea 100644
--- a/mdk-stage1/stage1.h
+++ b/mdk-stage1/stage1.h
@@ -22,21 +22,14 @@
 #ifndef _STAGE1_H_
 #define _STAGE1_H_
 
+#include "config-stage1.h"
+#include "tools.h"
 
-/* Some global stuff */
-
-struct cmdline_elem
-{
-	char * name;
-	char * value;
-};
-
-extern struct cmdline_elem params[500];
 
+/* Some global stuff */
 
 enum return_type { RETURN_OK, RETURN_BACK, RETURN_ERROR };
 
-extern int stage1_mode;
 extern char * method_name;
 
 #define MODE_TESTING        (1 << 0)
@@ -47,16 +40,19 @@ extern char * method_name;
 #define MODE_PCMCIA         (1 << 5)
 #define MODE_CDROM          (1 << 6)
 #define MODE_LIVE           (1 << 7)
-
-#define IS_TESTING     ((stage1_mode) & MODE_TESTING)
-#define IS_EXPERT      ((stage1_mode) & MODE_EXPERT)
-#define IS_TEXT        ((stage1_mode) & MODE_TEXT)
-#define IS_RESCUE      ((stage1_mode) & MODE_RESCUE)
-#define IS_KICKSTART   ((stage1_mode) & MODE_KICKSTART)
-#define IS_PCMCIA      ((stage1_mode) & MODE_PCMCIA)
-#define IS_CDROM       ((stage1_mode) & MODE_CDROM)
-#define IS_LIVE        ((stage1_mode) & MODE_LIVE)
-
+#define MODE_SPECIAL_STAGE2 (1 << 8)
+#define MODE_RAMDISK        (1 << 9)
+
+#define IS_TESTING     (get_param(MODE_TESTING))
+#define IS_EXPERT      (get_param(MODE_EXPERT))
+#define IS_TEXT        (get_param(MODE_TEXT))
+#define IS_RESCUE      (get_param(MODE_RESCUE))
+#define IS_KICKSTART   (get_param(MODE_KICKSTART))
+#define IS_PCMCIA      (get_param(MODE_PCMCIA))
+#define IS_CDROM       (get_param(MODE_CDROM))
+#define IS_LIVE        (get_param(MODE_LIVE))
+#define IS_SPECIAL_STAGE2 (get_param(MODE_SPECIAL_STAGE2))
+#define IS_RAMDISK     (get_param(MODE_RAMDISK))
 
 void fatal_error(char *msg);
 
diff --git a/mdk-stage1/tools.c b/mdk-stage1/tools.c
index e07fcd347..71516b354 100644
--- a/mdk-stage1/tools.c
+++ b/mdk-stage1/tools.c
@@ -26,11 +26,109 @@
 #include <fcntl.h>
 #include <string.h>
 #include <ctype.h>
+#include <zlib.h>
 #include "stage1.h"
 #include "log.h"
+#include "mount.h"
+#include "frontend.h"
 
 #include "tools.h"
 
+
+struct cmdline_elem
+{
+	char * name;
+	char * value;
+};
+
+struct cmdline_elem * params;
+
+void process_cmdline(void)
+{
+	char buf[512];
+	int fd, size, i, p;
+	struct cmdline_elem tmp_params[50];
+	
+	log_message("opening /proc/cmdline... ");
+	
+	if ((fd = open("/proc/cmdline", O_RDONLY, 0)) == -1)
+		fatal_error("could not open /proc/cmdline");
+	
+	size = read(fd, buf, sizeof(buf));
+	buf[size-1] = 0;
+	close(fd);
+
+	log_message("\t%s", buf);
+
+	i = 0; p = 0;
+	while (buf[i] != 0) {
+		char *name, *value = NULL;
+		int j = i;
+		while (buf[i] != ' ' && buf[i] != '=' && buf[i] != 0)
+			i++;
+		if (i == j) {
+			i++;
+			continue;
+		}
+		name = (char *) malloc(i-j + 1);
+		memcpy(name, &buf[j], i-j);
+		name[i-j] = 0;
+
+		if (buf[i] == '=') {
+			int k = i+1;
+			i++;
+			while (buf[i] != ' ' && buf[i] != 0)
+				i++;
+			value = (char *) malloc(i-k + 1);
+			memcpy(value, &buf[k], i-k);
+			value[i-k] = 0;
+		}
+
+		tmp_params[p].name = name;
+		tmp_params[p].value = value;
+		p++;
+		i++;
+		if (!strcmp(name, "expert")) set_param(MODE_EXPERT);
+		if (!strcmp(name, "rescue")) set_param(MODE_RESCUE);
+		if (!strcmp(name, "pcmcia")) set_param(MODE_PCMCIA);
+		if (!strcmp(name, "cdrom")) set_param(MODE_CDROM);
+		if (!strcmp(name, "special_stage2")) set_param(MODE_SPECIAL_STAGE2);
+	}
+	tmp_params[p].name = NULL;
+
+	params = (struct cmdline_elem *) malloc(sizeof(struct cmdline_elem) * (p+1));
+	memcpy(params, tmp_params, sizeof(struct cmdline_elem) * (p+1));
+
+	log_message("\tgot %d args", p);
+}
+
+
+int stage1_mode = 0;
+
+int get_param(int i)
+{
+	return (stage1_mode & i);
+}
+
+char * get_param_valued(char *param_name)
+{
+	struct cmdline_elem * ptr = params;
+
+	while (ptr->name) {
+		if (!strcmp(ptr->name, param_name))
+			return ptr->value;
+		ptr++;
+	}
+
+	return NULL;
+}
+
+void set_param(int i)
+{
+	stage1_mode |= i;
+}
+
+
 int total_memory(void)
 {
 	int fd;
@@ -69,3 +167,82 @@ int total_memory(void)
 
 	return memtotal;
 }
+
+
+int ramdisk_possible(void)
+{
+	if (total_memory() > MEM_LIMIT_RAMDISK)
+		return 1;
+	else {
+		log_message("Warning, ramdisk is not possible due to low mem!");
+		return 0;
+	}
+}
+
+
+enum return_type load_ramdisk(void)
+{
+	char * img_name;
+	gzFile st2;
+	char * ramdisk = "/dev/ram"; /* warning, verify that this file exists in the initrd (and actually is a ramdisk device file) */
+	int ram_fd;
+	char buffer[4096];
+	char * stg2_name = get_param_valued("special_stage2");
+	char * begin_img = "/tmp/image/Mandrake/base/";
+	char * end_img = "_stage2.gz";
+	int gz_errnum;
+
+	if (!stg2_name)
+		stg2_name = "mdkinst";
+	
+	img_name = malloc(strlen(begin_img) + strlen(stg2_name) + strlen(end_img) + 1);
+	strcpy(img_name, begin_img);
+	strcat(img_name, stg2_name);
+	strcat(img_name, end_img);
+
+	log_message("trying to load %s as a ramdisk", img_name);
+
+	st2 = gzopen(img_name, "r");
+	if (!st2) {
+		log_message("Opening compressed ramdisk: %s", gzerror(st2, &gz_errnum));
+		error_message("Could not open compressed ramdisk file.");
+		return RETURN_ERROR;
+	}
+
+	ram_fd = open(ramdisk, O_WRONLY);
+	if (ram_fd == -1) {
+		log_perror(ramdisk);
+		error_message("Could not open ramdisk device file.");
+		return RETURN_ERROR;
+	}
+
+	wait_message("Loading Installation program into memory...");
+
+	while (!gzeof(st2)) {
+		int actually = gzread(st2, buffer, sizeof(buffer));
+		if (actually != sizeof(buffer) && !gzeof(st2)) {
+			log_message("Reading compressed ramdisk: %s", gzerror(st2, &gz_errnum));
+			remove_wait_message();
+			return RETURN_ERROR;
+		}
+		if (write(ram_fd, buffer, actually) != actually) {
+			log_perror("Writing ramdisk");
+			remove_wait_message();
+			return RETURN_ERROR;
+		}
+		log_progression(100);
+	}
+
+	log_progression_done();
+	remove_wait_message();
+	gzclose(st2);
+	close(ram_fd);
+
+	if (my_mount(ramdisk, "/tmp/stage2", "ext2"))
+		return RETURN_ERROR;
+
+	set_param(MODE_RAMDISK);
+
+	return RETURN_OK;
+}
+
diff --git a/mdk-stage1/tools.h b/mdk-stage1/tools.h
index 21d09ec86..e975970c2 100644
--- a/mdk-stage1/tools.h
+++ b/mdk-stage1/tools.h
@@ -23,8 +23,12 @@
 #define _TOOLS_H_
 
 
-/* returns value of MemTotal tag from /proc/meminfo */
+void process_cmdline(void);
+int get_param(int i);
+void set_param(int i);
 int total_memory(void);
+int ramdisk_possible(void);
+enum return_type load_ramdisk(void);
 
 
 #endif