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authorPascal Rigaux <pixel@mandriva.com>2004-11-16 09:27:18 +0000
committerPascal Rigaux <pixel@mandriva.com>2004-11-16 09:27:18 +0000
commit755e390a3e193a7c899db5a9e773cf403db31f50 (patch)
treea09451bf815883687aababfab0ba5a9213524711 /mdk-stage1
parent12632bab895e9cd68493f120f44dbbfa6e3ab29f (diff)
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major switch from ramdisk to clp
- mdkinst_stage2.bz2 is now mdkinst.clp - rescue_stage2.bz2 is now rescue.clp - make_mdkinst_stage2 is now mdkinst_stage2_tool (we don't keep the live when building the clp, mdkinst_stage2_tool is able to create the clp from the live, or the live from the clp) - all stage1 images now need cryptoloop & gzloop - the clp can be preloaded in memory or not (see MEM_LIMIT_DRAKX_PRELOAD and MEM_LIMIT_RESCUE_PRELOAD) (for http & ftp, it *must* be preloaded) - we don't uncompress the ramdisk anymore since the decompression is done on the fly, this makes the rescue boot much faster - function get_ramdisk_realname() is replaced with macro CLP_FILE_REL
Diffstat (limited to 'mdk-stage1')
-rw-r--r--mdk-stage1/Makefile6
-rw-r--r--mdk-stage1/cdrom.c3
-rw-r--r--mdk-stage1/config-stage1.h17
-rw-r--r--mdk-stage1/directory.c76
-rw-r--r--mdk-stage1/disk.c3
-rw-r--r--mdk-stage1/network.c10
-rw-r--r--mdk-stage1/tools.c116
-rw-r--r--mdk-stage1/tools.h9
8 files changed, 73 insertions, 167 deletions
diff --git a/mdk-stage1/Makefile b/mdk-stage1/Makefile
index 83672a25c..543115741 100644
--- a/mdk-stage1/Makefile
+++ b/mdk-stage1/Makefile
@@ -111,10 +111,10 @@ STAGE1_NETWORK_LIBS = /usr/$(LIB)/libresolv.a
endif
#- stage1 itself
-STAGE1SRC = stage1.c log.c tools.c modules.c probing.c mount.c automatic.c frontend-common.c
+STAGE1SRC = stage1.c log.c tools.c modules.c probing.c mount.c automatic.c frontend-common.c lomount.c
CDROMSRC = cdrom.c
-DISKSRC = disk.c directory.c lomount.c
-NETWORKSRC = network.c nfsmount.c dhcp.c url.c dns.c adsl.c directory.c lomount.c
+DISKSRC = disk.c directory.c
+NETWORKSRC = network.c nfsmount.c dhcp.c url.c dns.c adsl.c directory.c
# use sort to remove duplicates
STAGE1_ALLSRC = $(sort $(STAGE1SRC) $(CDROMSRC) $(DISKSRC) $(NETWORKSRC))
diff --git a/mdk-stage1/cdrom.c b/mdk-stage1/cdrom.c
index acb202628..f226020c4 100644
--- a/mdk-stage1/cdrom.c
+++ b/mdk-stage1/cdrom.c
@@ -65,8 +65,7 @@ static enum return_type do_with_device(char * dev_name, char * dev_model)
log_message("found a " DISTRIB_NAME " CDROM, good news!");
#ifndef MANDRAKE_MOVE
- if (IS_RESCUE || ramdisk_possible())
- load_ramdisk(); /* we don't care about return code, we'll do it live if we failed */
+ may_load_clp();
if (IS_RESCUE)
/* in rescue mode, we don't need the media anymore */
diff --git a/mdk-stage1/config-stage1.h b/mdk-stage1/config-stage1.h
index df0646855..662ad4fb5 100644
--- a/mdk-stage1/config-stage1.h
+++ b/mdk-stage1/config-stage1.h
@@ -20,14 +20,15 @@
/* If we have more than that amount of memory (in Mbytes), we assume we can load the second stage as a ramdisk */
#define MEM_LIMIT_DRAKX 68
+/* If we have more than that amount of memory (in Mbytes), we preload the second stage as a ramdisk */
+#define MEM_LIMIT_DRAKX_PRELOAD 100
/* If we have more than that amount of memory (in Mbytes), we assume we can load the rescue as a ramdisk */
#define MEM_LIMIT_RESCUE 40
+/* If we have more than that amount of memory (in Mbytes), we preload the rescue as a ramdisk */
+#define MEM_LIMIT_RESCUE_PRELOAD 100
-#define RAMDISK_COMPRESSION_RATIO 1.95
-
-#define RAMDISK_LOCATION_REL "install/stage2/"
#define SLASH_LOCATION "/sysroot"
#ifdef MANDRAKE_MOVE
@@ -53,6 +54,11 @@
#define DISTRIB_NAME "Mandrakelinux"
#define LIVE_LOCATION_REL "install/stage2/live/"
+#define CLP_LOCATION_REL "install/stage2/"
+#define CLP_STAGE2_NAME "mdkinst.clp"
+#define CLP_RESCUE_NAME "rescue.clp"
+#define CLP_NAME(prefix) (IS_RESCUE ? prefix CLP_RESCUE_NAME : prefix CLP_STAGE2_NAME)
+#define CLP_FILE_REL(prefix) CLP_NAME(prefix CLP_LOCATION_REL)
/* the remote media is mounted in
- IMAGE_LOCATION_DIR "nfsimage", and IMAGE_LOCATION is a symlink image -> nfsimage/mdk/mirror/dir
@@ -63,6 +69,11 @@
#define IMAGE_LOCATION_REL "image"
#define IMAGE_LOCATION IMAGE_LOCATION_DIR IMAGE_LOCATION_REL
+#define CLP_LOCATION IMAGE_LOCATION "/" CLP_LOCATION_REL
+
+/* - if we use a clp : STAGE2_LOCATION is a the mount point
+ - if we use the live: STAGE2_LOCATION is a relative symlink to IMAGE_LOCATION_REL/install/stage2/live
+*/
#define STAGE2_LOCATION_ROOTED "/tmp/stage2"
#define STAGE2_LOCATION SLASH_LOCATION STAGE2_LOCATION_ROOTED
diff --git a/mdk-stage1/directory.c b/mdk-stage1/directory.c
index b8ced9cff..dd4206986 100644
--- a/mdk-stage1/directory.c
+++ b/mdk-stage1/directory.c
@@ -117,6 +117,7 @@ enum return_type try_with_directory(char *directory, char *method_live, char *me
char location_full[500];
char * loopdev = NULL;
struct stat statbuf;
+ enum return_type ret = RETURN_OK;
unlink(IMAGE_LOCATION);
strcpy(location_full, directory);
@@ -142,63 +143,36 @@ enum return_type try_with_directory(char *directory, char *method_live, char *me
symlink(location_full + offset, IMAGE_LOCATION);
add_to_env("METHOD", method_live);
}
-#ifndef MANDRAKE_MOVE
- if (IS_RESCUE || ((loopdev || streq(method_live, "disk")) && ramdisk_possible())) {
- /* RAMDISK install */
- if (access(IMAGE_LOCATION "/" RAMDISK_LOCATION_REL, R_OK)) {
- stg1_error_message("I can't find the " DISTRIB_NAME " Distribution in the specified directory. "
- "(I need the subdirectory " RAMDISK_LOCATION_REL ")\n"
- "Here's a short extract of the files in the directory:\n"
- "%s", extract_list_directory(IMAGE_LOCATION));
- umount(IMAGE_LOCATION);
- del_loop(loopdev);
- return RETURN_BACK;
- }
- if (load_ramdisk() != RETURN_OK) {
- stg1_error_message("Could not load program into memory.");
- umount(IMAGE_LOCATION);
- del_loop(loopdev);
- return RETURN_ERROR;
- }
- } else {
-#endif
- /* LIVE install */
+
#ifdef MANDRAKE_MOVE
- if (access(IMAGE_LOCATION "/live_tree/etc/fstab", R_OK) && access(IMAGE_LOCATION "/live_tree.clp", R_OK)) {
- stg1_error_message("I can't find the " DISTRIB_NAME " Distribution in the specified directory. "
- "(I need the subdirectory " IMAGE_LOCATION ")\n"
- "Here's a short extract of the files in the directory:\n"
- "%s", extract_list_directory(IMAGE_LOCATION));
+ if (access(IMAGE_LOCATION "/live_tree/etc/fstab", R_OK) && access(IMAGE_LOCATION "/live_tree.clp", R_OK)) {
+ stg1_error_message("I can't find the " DISTRIB_NAME " Distribution in the specified directory. "
+ "(I need the file " IMAGE_LOCATION "/live_tree/etc/fstab" ")\n"
+ "Here's a short extract of the files in the directory:\n"
+ "%s", extract_list_directory(IMAGE_LOCATION));
+ ret = RETURN_BACK;
+ }
#else
- char p;
- if (access(IMAGE_LOCATION "/" LIVE_LOCATION_REL, R_OK)) {
- stg1_error_message("I can't find the " DISTRIB_NAME " Distribution in the specified directory. "
- "(I need the subdirectory " LIVE_LOCATION_REL ")\n"
- "Here's a short extract of the files in the directory:\n"
- "%s", extract_list_directory(IMAGE_LOCATION));
-#endif
- umount(IMAGE_LOCATION);
- del_loop(loopdev);
- return RETURN_BACK;
- }
-#ifndef MANDRAKE_MOVE
- if (readlink(IMAGE_LOCATION "/" LIVE_LOCATION_REL "/usr/bin/runinstall2", &p, 1) != 1) {
- stg1_error_message("The " DISTRIB_NAME " Distribution seems to be copied on a Windows partition. "
- "You need more memory to perform an installation from a Windows partition. "
- "Another solution is to copy the " DISTRIB_NAME " Distribution on a Linux partition.");
- umount(IMAGE_LOCATION);
- del_loop(loopdev);
- return RETURN_ERROR;
- }
- log_message("found the " DISTRIB_NAME " Installation, good news!");
+ if (access(IMAGE_LOCATION "/" CLP_LOCATION_REL, R_OK)) {
+ stg1_error_message("I can't find the " DISTRIB_NAME " Distribution in the specified directory. "
+ "(I need the subdirectory " CLP_LOCATION_REL ")\n"
+ "Here's a short extract of the files in the directory:\n"
+ "%s", extract_list_directory(IMAGE_LOCATION));
+ ret = RETURN_BACK;
+ } else if (may_load_clp() != RETURN_OK) {
+ stg1_error_message("Could not load program into memory.");
+ ret = RETURN_ERROR;
}
-#endif
- if (IS_RESCUE) {
+ if (ret == RETURN_OK)
+ log_message("found the " DISTRIB_NAME " Installation, good news!");
+
+#endif
+ if (IS_RESCUE || ret != RETURN_OK) {
/* in rescue mode, we don't need the media anymore */
umount(IMAGE_LOCATION);
del_loop(loopdev);
- }
+ }
- return RETURN_OK;
+ return ret;
}
diff --git a/mdk-stage1/disk.c b/mdk-stage1/disk.c
index c45d38412..1060cd199 100644
--- a/mdk-stage1/disk.c
+++ b/mdk-stage1/disk.c
@@ -370,8 +370,7 @@ process_recovery(void)
log_message("going on with a recovery on disk %s partition %s", medias[i], *part);
symlink(disk_own_mount, IMAGE_LOCATION);
- if (ramdisk_possible())
- load_ramdisk(); /* if load of ramdisk failed, try to continue in live */
+ may_load_clp(); /* no error check */
add_to_env("METHOD", "disk");
return 1;
diff --git a/mdk-stage1/network.c b/mdk-stage1/network.c
index 6ea2b97b7..d47a39650 100644
--- a/mdk-stage1/network.c
+++ b/mdk-stage1/network.c
@@ -967,7 +967,7 @@ enum return_type ftp_prepare(void)
results = RETURN_BACK;
continue;
}
- kernels_list_file = asprintf_("%s/" RAMDISK_LOCATION_REL "mdkinst.kernels", location_full);
+ kernels_list_file = asprintf_("%s/" CLP_LOCATION_REL "mdkinst.kernels", location_full);
log_message("FTP: trying to retrieve %s", kernels_list_file);
fd = ftp_start_download(ftp_serv_response, kernels_list_file, &size);
@@ -992,7 +992,7 @@ enum return_type ftp_prepare(void)
}
}
- strcat(location_full, get_ramdisk_realname());
+ strcat(location_full, CLP_FILE_REL("/"));
log_message("FTP: trying to retrieve %s", location_full);
@@ -1021,7 +1021,7 @@ enum return_type ftp_prepare(void)
log_message("FTP: size of download %d bytes", size);
- results = load_ramdisk_fd(fd, size);
+ results = load_clp_fd(fd, size);
if (results == RETURN_OK) {
if (!use_http_proxy)
ftp_end_data_command(ftp_serv_response);
@@ -1087,7 +1087,7 @@ enum return_type http_prepare(void)
strcpy(location_full, answers[1][0] == '/' ? "" : "/");
strcat(location_full, answers[1]);
- strcat(location_full, get_ramdisk_realname());
+ strcat(location_full, CLP_FILE_REL("/"));
log_message("HTTP: trying to retrieve %s from %s", location_full, answers[0]);
@@ -1106,7 +1106,7 @@ enum return_type http_prepare(void)
log_message("HTTP: size of download %d bytes", size);
- if (load_ramdisk_fd(fd, size) != RETURN_OK) {
+ if (load_clp_fd(fd, size) != RETURN_OK) {
unset_param(MODE_AUTOMATIC); /* we are in a fallback mode */
return RETURN_ERROR;
}
diff --git a/mdk-stage1/tools.c b/mdk-stage1/tools.c
index 4e3f17a27..be1043798 100644
--- a/mdk-stage1/tools.c
+++ b/mdk-stage1/tools.c
@@ -30,7 +30,6 @@
#include <stdio.h>
#include <dirent.h>
#include <sys/types.h>
-#include <bzlib.h>
#include <sys/mount.h>
#include <sys/poll.h>
#include <errno.h>
@@ -228,7 +227,8 @@ int image_has_stage2()
#ifdef MANDRAKE_MOVE
return access(IMAGE_LOCATION "/live_tree.clp", R_OK) == 0;
#else
- return access(IMAGE_LOCATION "/" LIVE_LOCATION_REL, R_OK) == 0;
+ return access(CLP_FILE_REL(IMAGE_LOCATION "/"), R_OK) == 0 ||
+ access(IMAGE_LOCATION "/" LIVE_LOCATION_REL, R_OK) == 0;
#endif
}
@@ -242,6 +242,15 @@ int ramdisk_possible(void)
}
}
+int clp_preload(void)
+{
+ if (total_memory() > (IS_RESCUE ? MEM_LIMIT_RESCUE_PRELOAD : MEM_LIMIT_DRAKX_PRELOAD))
+ return 1;
+ else {
+ log_message("warning, not preloading clp due to low mem");
+ return 0;
+ }
+}
enum return_type save_fd(int from_fd, char * to, void (*callback_func)(int overall))
{
@@ -298,7 +307,6 @@ enum return_type copy_file(char * from, char * to, void (*callback_func)(int ove
}
}
-#ifdef MANDRAKE_MOVE
enum return_type mount_clp(char *clp, char *location_mount)
{
if (lomount(clp, location_mount, NULL, 1)) {
@@ -348,106 +356,22 @@ enum return_type mount_clp_may_preload(char *clp_name, char *location_mount, int
return mount_clp(clp, location_mount);
}
}
-#endif
#ifndef MANDRAKE_MOVE
-enum return_type load_ramdisk_fd(int ramdisk_fd, int size)
+enum return_type may_load_clp(void)
{
- BZFILE * st2;
- char * ramdisk = "/dev/ram3"; /* warning, verify that this file exists in the initrd, and that root=/dev/ram3 is actually passed to the kernel at boot time */
- int ram_fd;
- char buffer[32768];
- int z_errnum;
- char * wait_msg = "Loading program into memory...";
- int bytes_read = 0;
- int actually;
- int seems_ok = 0;
-
- st2 = BZ2_bzdopen(ramdisk_fd, "r");
-
- if (!st2) {
- log_message("Opening compressed ramdisk: %s", BZ2_bzerror(st2, &z_errnum));
- stg1_error_message("Could not open compressed ramdisk file.");
- return RETURN_ERROR;
- }
-
- ram_fd = open(ramdisk, O_WRONLY);
- if (ram_fd == -1) {
- log_perror(ramdisk);
- stg1_error_message("Could not open ramdisk device file.");
- return RETURN_ERROR;
- }
-
- init_progression(wait_msg, size);
-
- while ((actually = BZ2_bzread(st2, buffer, sizeof(buffer))) > 0) {
- seems_ok = 1;
- if (write(ram_fd, buffer, actually) != actually) {
- log_perror("writing ramdisk");
- remove_wait_message();
- return RETURN_ERROR;
- }
- update_progression((int)((bytes_read += actually) / RAMDISK_COMPRESSION_RATIO));
- }
-
- if (!seems_ok) {
- log_message("reading compressed ramdisk: %s", BZ2_bzerror(st2, &z_errnum));
- BZ2_bzclose(st2); /* opened by gzdopen, but also closes the associated fd */
- close(ram_fd);
- remove_wait_message();
- stg1_error_message("Could not uncompress second stage ramdisk. "
- "This is probably an hardware error while reading the data. "
- "(this may be caused by a hardware failure or a Linux kernel bug)");
- return RETURN_ERROR;
+ if (!IS_RESCUE && access(IMAGE_LOCATION "/" LIVE_LOCATION_REL, R_OK) == 0) {
+ /* LIVE install */
+ return RETURN_OK;
+ } else {
+ /* CLP install */
+ return mount_clp_may_preload(CLP_NAME(""), STAGE2_LOCATION, clp_preload());
}
-
- end_progression();
-
- BZ2_bzclose(st2); /* opened by gzdopen, but also closes the associated fd */
- close(ram_fd);
-
- if (my_mount(ramdisk, STAGE2_LOCATION, "ext2", 1))
- return RETURN_ERROR;
-
- return RETURN_OK;
-}
-
-
-char * get_ramdisk_realname(void)
-{
- char img_name[500];
-
- strcpy(img_name, "/" RAMDISK_LOCATION_REL);
- strcat(img_name, IS_RESCUE ? "rescue" : "mdkinst");
- strcat(img_name, "_stage2.bz2");
-
- return strdup(img_name);
}
-
-enum return_type load_ramdisk(void)
+enum return_type load_clp_fd(int fd, int size)
{
- int st2_fd;
- off_t size;
- char img_name[500];
-
- strcpy(img_name, IMAGE_LOCATION);
- strcat(img_name, get_ramdisk_realname());
-
- log_message("trying to load %s as a ramdisk", img_name);
-
- st2_fd = open(img_name, O_RDONLY); /* to be able to see the progression */
-
- if (st2_fd == -1) {
- log_message("open ramdisk file (%s) failed", img_name);
- stg1_error_message("Could not open compressed ramdisk file (%s).", img_name);
- return RETURN_ERROR;
- }
-
- if ((size = file_size(img_name)) == -1)
- return RETURN_ERROR;
- else
- return load_ramdisk_fd(st2_fd, size);
+ return preload_mount_clp(fd, size, CLP_NAME(""), STAGE2_LOCATION);
}
#endif
diff --git a/mdk-stage1/tools.h b/mdk-stage1/tools.h
index 19e0a4ea1..bd4dc7683 100644
--- a/mdk-stage1/tools.h
+++ b/mdk-stage1/tools.h
@@ -34,13 +34,12 @@ int total_memory(void);
int image_has_stage2();
int ramdisk_possible(void);
enum return_type copy_file(char * from, char * to, void (*callback_func)(int overall));
-#ifdef MANDRAKE_MOVE
+enum return_type preload_mount_clp(int clp_fd, int clp_size, char *clp_name, char *location_mount);
+enum return_type mount_clp(char *clp, char *location_mount);
enum return_type mount_clp_may_preload(char *clp_name, char *location_mount, int preload);
-#endif
#ifndef MANDRAKE_MOVE
-char * get_ramdisk_realname(void);
-enum return_type load_ramdisk(void);
-enum return_type load_ramdisk_fd(int ramdisk_fd, int size);
+enum return_type load_clp_fd(int fd, int size);
+enum return_type may_load_clp(void);
#endif
void * memdup(void *src, size_t size);
void add_to_env(char * name, char * value);