Support Easy Recovery Essentials (#1481)

DOC/BuildVentoyFromSource.txt

@@ -108,10 +108,10 @@
     cd /home/Ventoy-master/VtoyTool
     sh build.sh
 
-4.8 == Build vtoyfat ==    
-    cd /home/Ventoy-master/vtoyfat/fat_io_lib
+4.8 == Build vtoycli ==    
+    cd /home/Ventoy-master/vtoycli/fat_io_lib
     sh buildlib.sh
-    cd /home/Ventoy-master/vtoyfat
+    cd /home/Ventoy-master/vtoycli
     sh build.sh
 
 4.9 == Build exfat-util ==

GRUB2/MOD_SRC/grub-2.04/grub-core/ventoy/ventoy_cmd.c

@@ -5713,6 +5713,7 @@ static cmd_para ventoy_cmds[] =
     { "vt_unix_parse_freebsd_ver_elf", ventoy_cmd_unix_freebsd_ver_elf, 0, NULL, "", "", NULL },
     { "vt_unix_reset", ventoy_cmd_unix_reset, 0, NULL, "", "", NULL },
     { "vt_unix_replace_conf", ventoy_cmd_unix_replace_conf, 0, NULL, "", "", NULL },
+    { "vt_unix_replace_grub_conf", ventoy_cmd_unix_replace_grub_conf, 0, NULL, "", "", NULL },
     { "vt_unix_replace_ko", ventoy_cmd_unix_replace_ko, 0, NULL, "", "", NULL },
     { "vt_unix_ko_fillmap", ventoy_cmd_unix_ko_fillmap, 0, NULL, "", "", NULL },
     { "vt_unix_fill_image_desc", ventoy_cmd_unix_fill_image_desc, 0, NULL, "", "", NULL },

GRUB2/MOD_SRC/grub-2.04/grub-core/ventoy/ventoy_def.h

@@ -1094,6 +1094,7 @@ grub_err_t ventoy_cmd_unix_chain_data(grub_extcmd_context_t ctxt, int argc, char
 int ventoy_get_disk_guid(const char *filename, grub_uint8_t *guid, grub_uint8_t *signature);
 grub_err_t ventoy_cmd_unix_reset(grub_extcmd_context_t ctxt, int argc, char **args);
 grub_err_t ventoy_cmd_unix_replace_conf(grub_extcmd_context_t ctxt, int argc, char **args);
+grub_err_t ventoy_cmd_unix_replace_grub_conf(grub_extcmd_context_t ctxt, int argc, char **args);
 grub_err_t ventoy_cmd_unix_replace_ko(grub_extcmd_context_t ctxt, int argc, char **args);
 grub_err_t ventoy_cmd_unix_ko_fillmap(grub_extcmd_context_t ctxt, int argc, char **args);
 grub_err_t ventoy_cmd_unix_fill_image_desc(grub_extcmd_context_t ctxt, int argc, char **args);

GRUB2/MOD_SRC/grub-2.04/grub-core/ventoy/ventoy_unix.c

@@ -273,7 +273,7 @@ static void ventoy_unix_fill_virt_data(    grub_uint64_t isosize, ventoy_chain_h
     return;
 }
 
-static int ventoy_freebsd_append_conf(char *buf, const char *isopath)
+static int ventoy_freebsd_append_conf(char *buf, const char *isopath, const char *alias)
 {
     int pos = 0;
     grub_uint32_t i;
@@ -294,6 +294,10 @@ static int ventoy_freebsd_append_conf(char *buf, const char *isopath)
 
     vtoy_ssprintf(buf, pos, "ventoy_load=\"%s\"\n", "YES");
     vtoy_ssprintf(buf, pos, "ventoy_name=\"%s\"\n", g_ko_mod_path);
+    if (alias)
+    {
+        vtoy_ssprintf(buf, pos, "hint.ventoy.0.alias=\"%s\"\n", alias);
+    }
 
     if (g_mod_search_magic)
     {
@@ -647,6 +651,95 @@ out:
     VENTOY_CMD_RETURN(GRUB_ERR_NONE);
 }
 
+grub_err_t ventoy_cmd_unix_replace_grub_conf(grub_extcmd_context_t ctxt, int argc, char **args)
+{
+    int len;
+    grub_uint32_t i;
+    char *data;
+    char *pos;
+    grub_uint64_t offset;
+    grub_file_t file;
+    char extcfg[256];
+    const char *confile = NULL;
+    const char * loader_conf[] = 
+    {
+        "/boot/grub/grub.cfg",
+    };
+
+    (void)ctxt;
+
+    if (argc != 1 && argc != 2)
+    {
+        debug("Replace conf invalid argc %d\n", argc);
+        return 1;
+    }
+ 
+    for (i = 0; i < sizeof(loader_conf) / sizeof(loader_conf[0]); i++)
+    {
+        if (ventoy_get_file_override(loader_conf[i], &offset) == 0)
+        {
+            confile = loader_conf[i];
+            g_conf_override_offset = offset;
+            break;
+        }
+    }
+
+    if (confile == NULL)
+    {   
+        debug("Can't find grub.cfg file from %u locations\n", i);
+        return 1;
+    }
+
+    file = ventoy_grub_file_open(GRUB_FILE_TYPE_LINUX_INITRD, "(loop)/%s", confile);
+    if (!file)
+    {
+        debug("Failed to open %s \n", confile);
+        return 1;
+    }
+
+    debug("old grub2 conf file size:%d\n", (int)file->size);
+
+    data = grub_malloc(VTOY_MAX_SCRIPT_BUF);
+    if (!data)
+    {
+        grub_file_close(file);    
+        return 1;
+    }
+
+    grub_file_read(file, data, file->size);
+    grub_file_close(file);
+    
+    g_conf_new_data = data;
+    g_conf_new_len = (int)file->size;
+
+    pos = grub_strstr(data, "kfreebsd /boot/kernel/kernel");
+    if (pos)
+    {
+        pos += grub_strlen("kfreebsd /boot/kernel/kernel");
+        
+        if (argc == 2)
+        {
+            len = grub_snprintf(extcfg, sizeof(extcfg), 
+                    ";kfreebsd_module_elf %s; set kFreeBSD.hint.ventoy.0.alias=\"%s\"", 
+                    args[0], args[1]);
+        }
+        else
+        {
+            len = grub_snprintf(extcfg, sizeof(extcfg), ";kfreebsd_module_elf %s", args[0]);
+        }
+    
+        grub_memmove(pos + len, pos, (int)(file->size - (pos - data)));
+        grub_memcpy(pos, extcfg, len);
+        g_conf_new_len += len;
+    }
+    else
+    {
+        debug("no kfreebsd found\n");
+    }
+    
+    VENTOY_CMD_RETURN(GRUB_ERR_NONE);
+}
+
 grub_err_t ventoy_cmd_unix_replace_conf(grub_extcmd_context_t ctxt, int argc, char **args)
 {
     grub_uint32_t i;
@@ -662,7 +755,7 @@ grub_err_t ventoy_cmd_unix_replace_conf(grub_extcmd_context_t ctxt, int argc, ch
 
     (void)ctxt;
 
-    if (argc != 2)
+    if (argc != 2 && argc != 3)
     {
         debug("Replace conf invalid argc %d\n", argc);
         return 1;
@@ -708,7 +801,7 @@ grub_err_t ventoy_cmd_unix_replace_conf(grub_extcmd_context_t ctxt, int argc, ch
 
     if (grub_strcmp(args[0], "FreeBSD") == 0)
     {
-        g_conf_new_len += ventoy_freebsd_append_conf(data + file->size, args[1]);
+        g_conf_new_len += ventoy_freebsd_append_conf(data + file->size, args[1], (argc > 2) ? args[2] : NULL);
     }
     else if (grub_strcmp(args[0], "DragonFly") == 0)
     {

INSTALL/grub/grub.cfg

@@ -519,8 +519,17 @@ function ventoy_freebsd_proc {
         fi
     done
     
-    vt_unix_replace_ko $vt_unix_mod_path (vtunix)/ventoy_unix/$vtFreeBsdDistro/geom_ventoy_ko/$vt_freebsd_ver/$vt_freebsd_bit/geom_ventoy.ko.xz
-    vt_unix_replace_conf FreeBSD "${1}${chosen_path}"
+    if [ -n "$vt_unix_mod_path" ]; then
+        vt_unix_replace_ko $vt_unix_mod_path (vtunix)/ventoy_unix/$vtFreeBsdDistro/geom_ventoy_ko/$vt_freebsd_ver/$vt_freebsd_bit/geom_ventoy.ko.xz
+        vt_unix_replace_conf FreeBSD "${1}${chosen_path}"
+    elif [ -e (loop)/easyre.ufs.uzip ]; then
+        vt_unix_replace_ko "/boot/grub/i386-pc/linux.mod" (vtunix)/ventoy_unix/$vtFreeBsdDistro/geom_ventoy_ko/$vt_freebsd_ver/$vt_freebsd_bit/geom_ventoy.ko.xz
+        if [ "$grub_platform" = "pc" ]; then
+            vt_unix_replace_grub_conf "/boot/grub/i386-pc/linux.mod" "cd9"
+        else
+            vt_unix_replace_conf FreeBSD "${1}${chosen_path}" "cd9"
+        fi
+    fi
 }
 
 function ventoy_dragonfly_proc {

Unix/ventoy_unix_src/FreeBSD/geom_ventoy_src/13.x/sys/geom/ventoy/g_ventoy.c

@@ -200,12 +200,17 @@ g_ventoy_access(struct g_provider *pp, int dr, int dw, int de)
 	g_topology_assert();
 	gp = pp->geom;
 
+#if 1
 	/* On first open, grab an extra "exclusive" bit */
 	if (pp->acr == 0 && pp->acw == 0 && pp->ace == 0)
 		de++;
 	/* ... and let go of it on last close */
 	if ((pp->acr + dr) == 0 && (pp->acw + dw) == 0 && (pp->ace + de) == 0)
 		de--;
+#else
+    G_DEBUG("g_ventoy_access fake de (%d)-->(0)\n", de);
+    de = 0;
+#endif
 
 	LIST_FOREACH_SAFE(cp1, &gp->consumer, consumer, tmp) {
 		error = g_access(cp1, dr, dw, de);
@@ -835,6 +840,7 @@ g_ventoy_taste(struct g_class *mp, struct g_provider *pp, int flags __unused)
     int disknum;
     char *endpos;
     const char *value;
+    const char *alias = NULL;
 	struct g_geom *gp;
 	struct g_ventoy_metadata md;
 	struct g_ventoy_softc *sc;
@@ -858,7 +864,17 @@ g_ventoy_taste(struct g_class *mp, struct g_provider *pp, int flags __unused)
 
     g_ventoy_tasted = true;
 
-    G_DEBUG("######### ventoy disk <%s> #############\n", pp->name);
+    G_DEBUG("###### ventoy disk <%s> ######\n", pp->name);
+
+    /* hint.ventoy.0.alias=xxx */
+    if (resource_string_value("ventoy", 0, "alias", &alias) == 0)
+    {
+        G_DEBUG("###### ventoy alias <%s> ######\n", alias);
+    }
+    else
+    {
+        alias = NULL;
+    }
 
     if (VENTOY_MAP_VALID(g_ventoy_map_data.magic2))
     {
@@ -929,7 +945,12 @@ g_ventoy_taste(struct g_class *mp, struct g_provider *pp, int flags __unused)
         g_disk_map_end = 0;
     }
 
-	return (gp);
+    if (alias && sc && sc->sc_provider)
+    {
+        g_provider_add_alias(sc->sc_provider, "%s", alias);
+    }
+
+    return (gp);
 }
 
 static void