./tools/notsd-move

4 files changed, 941 insertions, 0 deletions

diff --git a/src/grp-system/grp-utils/systemd-fstab-generator/GNUmakefile b/src/grp-system/grp-utils/systemd-fstab-generator/GNUmakefile
new file mode 120000
index 0000000000..13308a50cd
--- /dev/null
+++ b/src/grp-system/grp-utils/systemd-fstab-generator/GNUmakefile
@@ -0,0 +1 @@
+../../../../GNUmakefile
\ No newline at end of file
diff --git a/src/grp-system/grp-utils/systemd-fstab-generator/Makefile b/src/grp-system/grp-utils/systemd-fstab-generator/Makefile
new file mode 100644
index 0000000000..43475f69e1
--- /dev/null
+++ b/src/grp-system/grp-utils/systemd-fstab-generator/Makefile
@@ -0,0 +1,34 @@
+#  -*- Mode: makefile; indent-tabs-mode: t -*-
+#
+#  This file is part of systemd.
+#
+#  Copyright 2010-2012 Lennart Poettering
+#  Copyright 2010-2012 Kay Sievers
+#  Copyright 2013 Zbigniew Jędrzejewski-Szmek
+#  Copyright 2013 David Strauss
+#  Copyright 2016 Luke Shumaker
+#
+#  systemd is free software; you can redistribute it and/or modify it
+#  under the terms of the GNU Lesser General Public License as published by
+#  the Free Software Foundation; either version 2.1 of the License, or
+#  (at your option) any later version.
+#
+#  systemd is distributed in the hope that it will be useful, but
+#  WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+#  Lesser General Public License for more details.
+#
+#  You should have received a copy of the GNU Lesser General Public License
+#  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+include $(dir $(lastword $(MAKEFILE_LIST)))/../../../../config.mk
+include $(topsrcdir)/build-aux/Makefile.head.mk
+
+systemgenerator_PROGRAMS += systemd-fstab-generator
+systemd_fstab_generator_SOURCES = \
+	src/fstab-generator/fstab-generator.c \
+	src/core/mount-setup.c
+
+systemd_fstab_generator_LDADD = \
+	libsystemd-shared.la
+
+include $(topsrcdir)/build-aux/Makefile.tail.mk
diff --git a/src/grp-system/grp-utils/systemd-fstab-generator/fstab-generator.c b/src/grp-system/grp-utils/systemd-fstab-generator/fstab-generator.c
new file mode 100644
index 0000000000..aceac5151c
--- /dev/null
+++ b/src/grp-system/grp-utils/systemd-fstab-generator/fstab-generator.c
@@ -0,0 +1,723 @@
+/***
+  This file is part of systemd.
+
+  Copyright 2012 Lennart Poettering
+
+  systemd is free software; you can redistribute it and/or modify it
+  under the terms of the GNU Lesser General Public License as published by
+  the Free Software Foundation; either version 2.1 of the License, or
+  (at your option) any later version.
+
+  systemd is distributed in the hope that it will be useful, but
+  WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public License
+  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <errno.h>
+#include <mntent.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "core/mount-setup.h"
+#include "systemd-basic/alloc-util.h"
+#include "systemd-basic/fd-util.h"
+#include "systemd-basic/fileio.h"
+#include "systemd-basic/log.h"
+#include "systemd-basic/mkdir.h"
+#include "systemd-basic/mount-util.h"
+#include "systemd-basic/parse-util.h"
+#include "systemd-basic/path-util.h"
+#include "systemd-basic/proc-cmdline.h"
+#include "systemd-basic/special.h"
+#include "systemd-basic/stat-util.h"
+#include "systemd-basic/string-util.h"
+#include "systemd-basic/strv.h"
+#include "systemd-basic/unit-name.h"
+#include "systemd-basic/util.h"
+#include "systemd-basic/virt.h"
+#include "systemd-shared/fstab-util.h"
+#include "systemd-shared/generator.h"
+
+static const char *arg_dest = "/tmp";
+static bool arg_fstab_enabled = true;
+static char *arg_root_what = NULL;
+static char *arg_root_fstype = NULL;
+static char *arg_root_options = NULL;
+static int arg_root_rw = -1;
+static char *arg_usr_what = NULL;
+static char *arg_usr_fstype = NULL;
+static char *arg_usr_options = NULL;
+
+static int add_swap(
+                const char *what,
+                struct mntent *me,
+                bool noauto,
+                bool nofail) {
+
+        _cleanup_free_ char *name = NULL, *unit = NULL, *lnk = NULL;
+        _cleanup_fclose_ FILE *f = NULL;
+        int r;
+
+        assert(what);
+        assert(me);
+
+        if (access("/proc/swaps", F_OK) < 0) {
+                log_info("Swap not supported, ignoring fstab swap entry for %s.", what);
+                return 0;
+        }
+
+        if (detect_container() > 0) {
+                log_info("Running in a container, ignoring fstab swap entry for %s.", what);
+                return 0;
+        }
+
+        r = unit_name_from_path(what, ".swap", &name);
+        if (r < 0)
+                return log_error_errno(r, "Failed to generate unit name: %m");
+
+        unit = strjoin(arg_dest, "/", name, NULL);
+        if (!unit)
+                return log_oom();
+
+        f = fopen(unit, "wxe");
+        if (!f)
+                return log_error_errno(errno,
+                                       errno == EEXIST ?
+                                       "Failed to create swap unit file %s, as it already exists. Duplicate entry in /etc/fstab?" :
+                                       "Failed to create unit file %s: %m",
+                                       unit);
+
+        fprintf(f,
+                "# Automatically generated by systemd-fstab-generator\n\n"
+                "[Unit]\n"
+                "SourcePath=/etc/fstab\n"
+                "Documentation=man:fstab(5) man:systemd-fstab-generator(8)\n\n"
+                "[Swap]\n"
+                "What=%s\n",
+                what);
+
+        if (!isempty(me->mnt_opts) && !streq(me->mnt_opts, "defaults"))
+                fprintf(f, "Options=%s\n", me->mnt_opts);
+
+        r = fflush_and_check(f);
+        if (r < 0)
+                return log_error_errno(r, "Failed to write unit file %s: %m", unit);
+
+        /* use what as where, to have a nicer error message */
+        r = generator_write_timeouts(arg_dest, what, what, me->mnt_opts, NULL);
+        if (r < 0)
+                return r;
+
+        if (!noauto) {
+                lnk = strjoin(arg_dest, "/" SPECIAL_SWAP_TARGET,
+                              nofail ? ".wants/" : ".requires/", name, NULL);
+                if (!lnk)
+                        return log_oom();
+
+                mkdir_parents_label(lnk, 0755);
+                if (symlink(unit, lnk) < 0)
+                        return log_error_errno(errno, "Failed to create symlink %s: %m", lnk);
+        }
+
+        return 0;
+}
+
+static bool mount_is_network(struct mntent *me) {
+        assert(me);
+
+        return fstab_test_option(me->mnt_opts, "_netdev\0") ||
+               fstype_is_network(me->mnt_type);
+}
+
+static bool mount_in_initrd(struct mntent *me) {
+        assert(me);
+
+        return fstab_test_option(me->mnt_opts, "x-initrd.mount\0") ||
+               streq(me->mnt_dir, "/usr");
+}
+
+static int write_idle_timeout(FILE *f, const char *where, const char *opts) {
+        _cleanup_free_ char *timeout = NULL;
+        char timespan[FORMAT_TIMESPAN_MAX];
+        usec_t u;
+        int r;
+
+        r = fstab_filter_options(opts, "x-systemd.idle-timeout\0", NULL, &timeout, NULL);
+        if (r < 0)
+                return log_warning_errno(r, "Failed to parse options: %m");
+        if (r == 0)
+                return 0;
+
+        r = parse_sec(timeout, &u);
+        if (r < 0) {
+                log_warning("Failed to parse timeout for %s, ignoring: %s", where, timeout);
+                return 0;
+        }
+
+        fprintf(f, "TimeoutIdleSec=%s\n", format_timespan(timespan, sizeof(timespan), u, 0));
+
+        return 0;
+}
+
+static int write_requires_after(FILE *f, const char *opts) {
+        _cleanup_strv_free_ char **names = NULL, **units = NULL;
+        _cleanup_free_ char *res = NULL;
+        char **s;
+        int r;
+
+        assert(f);
+        assert(opts);
+
+        r = fstab_extract_values(opts, "x-systemd.requires", &names);
+        if (r < 0)
+                return log_warning_errno(r, "Failed to parse options: %m");
+        if (r == 0)
+                return 0;
+
+        STRV_FOREACH(s, names) {
+                char *x;
+
+                r = unit_name_mangle_with_suffix(*s, UNIT_NAME_NOGLOB, ".mount", &x);
+                if (r < 0)
+                        return log_error_errno(r, "Failed to generate unit name: %m");
+                r = strv_consume(&units, x);
+                if (r < 0)
+                        return log_oom();
+        }
+
+        if (units) {
+                res = strv_join(units, " ");
+                if (!res)
+                        return log_oom();
+                fprintf(f, "After=%1$s\nRequires=%1$s\n", res);
+        }
+
+        return 0;
+}
+
+static int write_requires_mounts_for(FILE *f, const char *opts) {
+        _cleanup_strv_free_ char **paths = NULL;
+        _cleanup_free_ char *res = NULL;
+        int r;
+
+        assert(f);
+        assert(opts);
+
+        r = fstab_extract_values(opts, "x-systemd.requires-mounts-for", &paths);
+        if (r < 0)
+                return log_warning_errno(r, "Failed to parse options: %m");
+        if (r == 0)
+                return 0;
+
+        res = strv_join(paths, " ");
+        if (!res)
+                return log_oom();
+
+        fprintf(f, "RequiresMountsFor=%s\n", res);
+
+        return 0;
+}
+
+static int add_mount(
+                const char *what,
+                const char *where,
+                const char *fstype,
+                const char *opts,
+                int passno,
+                bool noauto,
+                bool nofail,
+                bool automount,
+                const char *post,
+                const char *source) {
+
+        _cleanup_free_ char
+                *name = NULL, *unit = NULL, *lnk = NULL,
+                *automount_name = NULL, *automount_unit = NULL,
+                *filtered = NULL;
+        _cleanup_fclose_ FILE *f = NULL;
+        int r;
+
+        assert(what);
+        assert(where);
+        assert(opts);
+        assert(post);
+        assert(source);
+
+        if (streq_ptr(fstype, "autofs"))
+                return 0;
+
+        if (!is_path(where)) {
+                log_warning("Mount point %s is not a valid path, ignoring.", where);
+                return 0;
+        }
+
+        if (mount_point_is_api(where) ||
+            mount_point_ignore(where))
+                return 0;
+
+        if (path_equal(where, "/")) {
+                if (noauto)
+                        log_warning("Ignoring \"noauto\" for root device");
+                if (nofail)
+                        log_warning("Ignoring \"nofail\" for root device");
+                if (automount)
+                        log_warning("Ignoring automount option for root device");
+
+                noauto = nofail = automount = false;
+        }
+
+        r = unit_name_from_path(where, ".mount", &name);
+        if (r < 0)
+                return log_error_errno(r, "Failed to generate unit name: %m");
+
+        unit = strjoin(arg_dest, "/", name, NULL);
+        if (!unit)
+                return log_oom();
+
+        f = fopen(unit, "wxe");
+        if (!f)
+                return log_error_errno(errno,
+                                       errno == EEXIST ?
+                                       "Failed to create mount unit file %s, as it already exists. Duplicate entry in /etc/fstab?" :
+                                       "Failed to create unit file %s: %m",
+                                       unit);
+
+        fprintf(f,
+                "# Automatically generated by systemd-fstab-generator\n\n"
+                "[Unit]\n"
+                "SourcePath=%s\n"
+                "Documentation=man:fstab(5) man:systemd-fstab-generator(8)\n",
+                source);
+
+        if (!noauto && !nofail && !automount)
+                fprintf(f, "Before=%s\n", post);
+
+        if (!automount && opts) {
+                 r = write_requires_after(f, opts);
+                 if (r < 0)
+                         return r;
+                 r = write_requires_mounts_for(f, opts);
+                 if (r < 0)
+                         return r;
+        }
+
+        if (passno != 0) {
+                r = generator_write_fsck_deps(f, arg_dest, what, where, fstype);
+                if (r < 0)
+                        return r;
+        }
+
+        fprintf(f,
+                "\n"
+                "[Mount]\n"
+                "What=%s\n"
+                "Where=%s\n",
+                what,
+                where);
+
+        if (!isempty(fstype) && !streq(fstype, "auto"))
+                fprintf(f, "Type=%s\n", fstype);
+
+        r = generator_write_timeouts(arg_dest, what, where, opts, &filtered);
+        if (r < 0)
+                return r;
+
+        if (!isempty(filtered) && !streq(filtered, "defaults"))
+                fprintf(f, "Options=%s\n", filtered);
+
+        r = fflush_and_check(f);
+        if (r < 0)
+                return log_error_errno(r, "Failed to write unit file %s: %m", unit);
+
+        if (!noauto && !automount) {
+                lnk = strjoin(arg_dest, "/", post, nofail ? ".wants/" : ".requires/", name, NULL);
+                if (!lnk)
+                        return log_oom();
+
+                mkdir_parents_label(lnk, 0755);
+                if (symlink(unit, lnk) < 0)
+                        return log_error_errno(errno, "Failed to create symlink %s: %m", lnk);
+        }
+
+        if (automount) {
+                r = unit_name_from_path(where, ".automount", &automount_name);
+                if (r < 0)
+                        return log_error_errno(r, "Failed to generate unit name: %m");
+
+                automount_unit = strjoin(arg_dest, "/", automount_name, NULL);
+                if (!automount_unit)
+                        return log_oom();
+
+                fclose(f);
+                f = fopen(automount_unit, "wxe");
+                if (!f)
+                        return log_error_errno(errno, "Failed to create unit file %s: %m", automount_unit);
+
+                fprintf(f,
+                        "# Automatically generated by systemd-fstab-generator\n\n"
+                        "[Unit]\n"
+                        "SourcePath=%s\n"
+                        "Documentation=man:fstab(5) man:systemd-fstab-generator(8)\n",
+                        source);
+
+                fprintf(f, "Before=%s\n", post);
+
+                if (opts) {
+                        r = write_requires_after(f, opts);
+                        if (r < 0)
+                                return r;
+                        r = write_requires_mounts_for(f, opts);
+                        if (r < 0)
+                                return r;
+                }
+
+                fprintf(f,
+                        "\n"
+                        "[Automount]\n"
+                        "Where=%s\n",
+                        where);
+
+                r = write_idle_timeout(f, where, opts);
+                if (r < 0)
+                        return r;
+
+                r = fflush_and_check(f);
+                if (r < 0)
+                        return log_error_errno(r, "Failed to write unit file %s: %m", automount_unit);
+
+                free(lnk);
+                lnk = strjoin(arg_dest, "/", post, nofail ? ".wants/" : ".requires/", automount_name, NULL);
+                if (!lnk)
+                        return log_oom();
+
+                mkdir_parents_label(lnk, 0755);
+                if (symlink(automount_unit, lnk) < 0)
+                        return log_error_errno(errno, "Failed to create symlink %s: %m", lnk);
+        }
+
+        return 0;
+}
+
+static int parse_fstab(bool initrd) {
+        _cleanup_endmntent_ FILE *f = NULL;
+        const char *fstab_path;
+        struct mntent *me;
+        int r = 0;
+
+        fstab_path = initrd ? "/sysroot/etc/fstab" : "/etc/fstab";
+        f = setmntent(fstab_path, "re");
+        if (!f) {
+                if (errno == ENOENT)
+                        return 0;
+
+                return log_error_errno(errno, "Failed to open %s: %m", fstab_path);
+        }
+
+        while ((me = getmntent(f))) {
+                _cleanup_free_ char *where = NULL, *what = NULL;
+                bool noauto, nofail;
+                int k;
+
+                if (initrd && !mount_in_initrd(me))
+                        continue;
+
+                what = fstab_node_to_udev_node(me->mnt_fsname);
+                if (!what)
+                        return log_oom();
+
+                if (is_device_path(what) && path_is_read_only_fs("sys") > 0) {
+                        log_info("Running in a container, ignoring fstab device entry for %s.", what);
+                        continue;
+                }
+
+                where = initrd ? strappend("/sysroot/", me->mnt_dir) : strdup(me->mnt_dir);
+                if (!where)
+                        return log_oom();
+
+                if (is_path(where))
+                        path_kill_slashes(where);
+
+                noauto = fstab_test_yes_no_option(me->mnt_opts, "noauto\0" "auto\0");
+                nofail = fstab_test_yes_no_option(me->mnt_opts, "nofail\0" "fail\0");
+                log_debug("Found entry what=%s where=%s type=%s nofail=%s noauto=%s",
+                          what, where, me->mnt_type,
+                          yes_no(noauto), yes_no(nofail));
+
+                if (streq(me->mnt_type, "swap"))
+                        k = add_swap(what, me, noauto, nofail);
+                else {
+                        bool automount;
+                        const char *post;
+
+                        automount = fstab_test_option(me->mnt_opts,
+                                                      "comment=systemd.automount\0"
+                                                      "x-systemd.automount\0");
+                        if (initrd)
+                                post = SPECIAL_INITRD_FS_TARGET;
+                        else if (mount_is_network(me))
+                                post = SPECIAL_REMOTE_FS_TARGET;
+                        else
+                                post = SPECIAL_LOCAL_FS_TARGET;
+
+                        k = add_mount(what,
+                                      where,
+                                      me->mnt_type,
+                                      me->mnt_opts,
+                                      me->mnt_passno,
+                                      noauto,
+                                      nofail,
+                                      automount,
+                                      post,
+                                      fstab_path);
+                }
+
+                if (k < 0)
+                        r = k;
+        }
+
+        return r;
+}
+
+static int add_sysroot_mount(void) {
+        _cleanup_free_ char *what = NULL;
+        const char *opts;
+        int r;
+
+        if (isempty(arg_root_what)) {
+                log_debug("Could not find a root= entry on the kernel command line.");
+                return 0;
+        }
+
+        if (streq(arg_root_what, "gpt-auto")) {
+                /* This is handled by the gpt-auto generator */
+                log_debug("Skipping root directory handling, as gpt-auto was requested.");
+                return 0;
+        }
+
+        if (path_equal(arg_root_what, "/dev/nfs")) {
+                /* This is handled by the kernel or the initrd */
+                log_debug("Skipping root directory handling, as /dev/nfs was requested.");
+                return 0;
+        }
+
+        what = fstab_node_to_udev_node(arg_root_what);
+        if (!what)
+                return log_oom();
+
+        if (!arg_root_options)
+                opts = arg_root_rw > 0 ? "rw" : "ro";
+        else if (arg_root_rw >= 0 ||
+                 !fstab_test_option(arg_root_options, "ro\0" "rw\0"))
+                opts = strjoina(arg_root_options, ",", arg_root_rw > 0 ? "rw" : "ro");
+        else
+                opts = arg_root_options;
+
+        log_debug("Found entry what=%s where=/sysroot type=%s", what, strna(arg_root_fstype));
+
+        if (is_device_path(what)) {
+                r = generator_write_initrd_root_device_deps(arg_dest, what);
+                if (r < 0)
+                        return r;
+        }
+
+        return add_mount(what,
+                         "/sysroot",
+                         arg_root_fstype,
+                         opts,
+                         is_device_path(what) ? 1 : 0, /* passno */
+                         false,                        /* noauto off */
+                         false,                        /* nofail off */
+                         false,                        /* automount off */
+                         SPECIAL_INITRD_ROOT_FS_TARGET,
+                         "/proc/cmdline");
+}
+
+static int add_sysroot_usr_mount(void) {
+        _cleanup_free_ char *what = NULL;
+        const char *opts;
+
+        if (!arg_usr_what && !arg_usr_fstype && !arg_usr_options)
+                return 0;
+
+        if (arg_root_what && !arg_usr_what) {
+                /* Copy over the root device, in case the /usr mount just differs in a mount option (consider btrfs subvolumes) */
+                arg_usr_what = strdup(arg_root_what);
+                if (!arg_usr_what)
+                        return log_oom();
+        }
+
+        if (arg_root_fstype && !arg_usr_fstype) {
+                arg_usr_fstype = strdup(arg_root_fstype);
+                if (!arg_usr_fstype)
+                        return log_oom();
+        }
+
+        if (arg_root_options && !arg_usr_options) {
+                arg_usr_options = strdup(arg_root_options);
+                if (!arg_usr_options)
+                        return log_oom();
+        }
+
+        if (!arg_usr_what)
+                return 0;
+
+        what = fstab_node_to_udev_node(arg_usr_what);
+        if (!what)
+                return log_oom();
+
+        if (!arg_usr_options)
+                opts = arg_root_rw > 0 ? "rw" : "ro";
+        else if (!fstab_test_option(arg_usr_options, "ro\0" "rw\0"))
+                opts = strjoina(arg_usr_options, ",", arg_root_rw > 0 ? "rw" : "ro");
+        else
+                opts = arg_usr_options;
+
+        log_debug("Found entry what=%s where=/sysroot/usr type=%s", what, strna(arg_usr_fstype));
+        return add_mount(what,
+                         "/sysroot/usr",
+                         arg_usr_fstype,
+                         opts,
+                         is_device_path(what) ? 1 : 0, /* passno */
+                         false,                        /* noauto off */
+                         false,                        /* nofail off */
+                         false,                        /* automount off */
+                         SPECIAL_INITRD_FS_TARGET,
+                         "/proc/cmdline");
+}
+
+static int parse_proc_cmdline_item(const char *key, const char *value, void *data) {
+        int r;
+
+        /* root=, usr=, usrfstype= and roofstype= may occur more than once, the last
+         * instance should take precedence.  In the case of multiple rootflags=
+         * or usrflags= the arguments should be concatenated */
+
+        if (STR_IN_SET(key, "fstab", "rd.fstab") && value) {
+
+                r = parse_boolean(value);
+                if (r < 0)
+                        log_warning("Failed to parse fstab switch %s. Ignoring.", value);
+                else
+                        arg_fstab_enabled = r;
+
+        } else if (streq(key, "root") && value) {
+
+                if (free_and_strdup(&arg_root_what, value) < 0)
+                        return log_oom();
+
+        } else if (streq(key, "rootfstype") && value) {
+
+                if (free_and_strdup(&arg_root_fstype, value) < 0)
+                        return log_oom();
+
+        } else if (streq(key, "rootflags") && value) {
+                char *o;
+
+                o = arg_root_options ?
+                        strjoin(arg_root_options, ",", value, NULL) :
+                        strdup(value);
+                if (!o)
+                        return log_oom();
+
+                free(arg_root_options);
+                arg_root_options = o;
+
+        } else if (streq(key, "mount.usr") && value) {
+
+                if (free_and_strdup(&arg_usr_what, value) < 0)
+                        return log_oom();
+
+        } else if (streq(key, "mount.usrfstype") && value) {
+
+                if (free_and_strdup(&arg_usr_fstype, value) < 0)
+                        return log_oom();
+
+        } else if (streq(key, "mount.usrflags") && value) {
+                char *o;
+
+                o = arg_usr_options ?
+                        strjoin(arg_usr_options, ",", value, NULL) :
+                        strdup(value);
+                if (!o)
+                        return log_oom();
+
+                free(arg_usr_options);
+                arg_usr_options = o;
+
+        } else if (streq(key, "rw") && !value)
+                arg_root_rw = true;
+        else if (streq(key, "ro") && !value)
+                arg_root_rw = false;
+
+        return 0;
+}
+
+int main(int argc, char *argv[]) {
+        int r = 0;
+
+        if (argc > 1 && argc != 4) {
+                log_error("This program takes three or no arguments.");
+                return EXIT_FAILURE;
+        }
+
+        if (argc > 1)
+                arg_dest = argv[1];
+
+        log_set_target(LOG_TARGET_SAFE);
+        log_parse_environment();
+        log_open();
+
+        umask(0022);
+
+        r = parse_proc_cmdline(parse_proc_cmdline_item, NULL, false);
+        if (r < 0)
+                log_warning_errno(r, "Failed to parse kernel command line, ignoring: %m");
+
+        /* Always honour root= and usr= in the kernel command line if we are in an initrd */
+        if (in_initrd()) {
+                int k;
+
+                r = add_sysroot_mount();
+
+                k = add_sysroot_usr_mount();
+                if (k < 0)
+                        r = k;
+        } else
+                r = 0;
+
+        /* Honour /etc/fstab only when that's enabled */
+        if (arg_fstab_enabled) {
+                int k;
+
+                log_debug("Parsing /etc/fstab");
+
+                /* Parse the local /etc/fstab, possibly from the initrd */
+                k = parse_fstab(false);
+                if (k < 0)
+                        r = k;
+
+                /* If running in the initrd also parse the /etc/fstab from the host */
+                if (in_initrd()) {
+                        log_debug("Parsing /sysroot/etc/fstab");
+
+                        k = parse_fstab(true);
+                        if (k < 0)
+                                r = k;
+                }
+        }
+
+        free(arg_root_what);
+        free(arg_root_fstype);
+        free(arg_root_options);
+
+        free(arg_usr_what);
+        free(arg_usr_fstype);
+        free(arg_usr_options);
+
+        return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
+}
diff --git a/src/grp-system/grp-utils/systemd-fstab-generator/systemd-fstab-generator.xml b/src/grp-system/grp-utils/systemd-fstab-generator/systemd-fstab-generator.xml
new file mode 100644
index 0000000000..a971cb3675
--- /dev/null
+++ b/src/grp-system/grp-utils/systemd-fstab-generator/systemd-fstab-generator.xml
@@ -0,0 +1,183 @@
+<?xml version="1.0"?>
+<!--*-nxml-*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+<!--
+  This file is part of systemd.
+
+  Copyright 2012 Lennart Poettering
+
+  systemd is free software; you can redistribute it and/or modify it
+  under the terms of the GNU Lesser General Public License as published by
+  the Free Software Foundation; either version 2.1 of the License, or
+  (at your option) any later version.
+
+  systemd is distributed in the hope that it will be useful, but
+  WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public License
+  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+<refentry id="systemd-fstab-generator">
+
+  <refentryinfo>
+    <title>systemd-fstab-generator</title>
+    <productname>systemd</productname>
+
+    <authorgroup>
+      <author>
+        <contrib>Developer</contrib>
+        <firstname>Lennart</firstname>
+        <surname>Poettering</surname>
+        <email>lennart@poettering.net</email>
+      </author>
+    </authorgroup>
+  </refentryinfo>
+
+  <refmeta>
+    <refentrytitle>systemd-fstab-generator</refentrytitle>
+    <manvolnum>8</manvolnum>
+  </refmeta>
+
+  <refnamediv>
+    <refname>systemd-fstab-generator</refname>
+    <refpurpose>Unit generator for /etc/fstab</refpurpose>
+  </refnamediv>
+
+  <refsynopsisdiv>
+    <para><filename>/usr/lib/systemd/system-generators/systemd-fstab-generator</filename></para>
+  </refsynopsisdiv>
+
+  <refsect1>
+    <title>Description</title>
+
+    <para><filename>systemd-fstab-generator</filename> is a generator
+    that translates <filename>/etc/fstab</filename> (see
+    <citerefentry project='man-pages'><refentrytitle>fstab</refentrytitle><manvolnum>5</manvolnum></citerefentry>
+    for details) into native systemd units early at boot and when
+    configuration of the system manager is reloaded. This will
+    instantiate mount and swap units as necessary.</para>
+
+    <para>The <varname>passno</varname> field is treated like a simple
+    boolean, and the ordering information is discarded. However, if
+    the root file system is checked, it is checked before all the
+    other file systems.</para>
+
+    <para>See
+    <citerefentry><refentrytitle>systemd.mount</refentrytitle><manvolnum>5</manvolnum></citerefentry>
+    and
+    <citerefentry><refentrytitle>systemd.swap</refentrytitle><manvolnum>5</manvolnum></citerefentry>
+    for more information about special <filename>/etc/fstab</filename>
+    mount options this generator understands.</para>
+
+    <para><filename>systemd-fstab-generator</filename> implements
+    <citerefentry><refentrytitle>systemd.generator</refentrytitle><manvolnum>7</manvolnum></citerefentry>.</para>
+  </refsect1>
+
+  <refsect1>
+    <title>Kernel Command Line</title>
+
+    <para><filename>systemd-fstab-generator</filename> understands the
+    following kernel command line parameters:</para>
+
+    <variablelist class='kernel-commandline-options'>
+
+      <varlistentry>
+        <term><varname>fstab=</varname></term>
+        <term><varname>rd.fstab=</varname></term>
+
+        <listitem><para>Takes a boolean argument. Defaults to
+        <literal>yes</literal>. If <literal>no</literal>, causes the
+        generator to ignore any mounts or swaps configured in
+        <filename>/etc/fstab</filename>. <varname>rd.fstab=</varname>
+        is honored only by initial RAM disk (initrd) while
+        <varname>fstab=</varname> is honored by both the main system
+        and the initrd.</para></listitem>
+      </varlistentry>
+      <varlistentry>
+        <term><varname>root=</varname></term>
+
+        <listitem><para>Takes the root filesystem to mount in the
+        initrd. <varname>root=</varname> is honored by the
+        initrd.</para></listitem>
+      </varlistentry>
+      <varlistentry>
+        <term><varname>rootfstype=</varname></term>
+
+        <listitem><para>Takes the root filesystem type that will be
+        passed to the mount command. <varname>rootfstype=</varname> is
+        honored by the initrd.</para></listitem>
+      </varlistentry>
+      <varlistentry>
+        <term><varname>rootflags=</varname></term>
+
+        <listitem><para>Takes the root filesystem mount options to
+        use. <varname>rootflags=</varname> is honored by the
+        initrd.</para></listitem>
+      </varlistentry>
+      <varlistentry>
+        <term><varname>mount.usr=</varname></term>
+
+        <listitem><para>Takes the <filename>/usr</filename> filesystem
+        to be mounted by the initrd. If
+        <varname>mount.usrfstype=</varname> or
+        <varname>mount.usrflags=</varname> is set, then
+        <varname>mount.usr=</varname> will default to the value set in
+        <varname>root=</varname>.</para>
+
+        <para>Otherwise, this parameter defaults to the
+        <filename>/usr</filename> entry found in
+        <filename>/etc/fstab</filename> on the root filesystem.</para>
+
+        <para><varname>mount.usr=</varname> is honored by the initrd.
+        </para></listitem>
+      </varlistentry>
+      <varlistentry>
+        <term><varname>mount.usrfstype=</varname></term>
+
+        <listitem><para>Takes the <filename>/usr</filename> filesystem
+        type that will be passed to the mount command. If
+        <varname>mount.usr=</varname> or
+        <varname>mount.usrflags=</varname> is set, then
+        <varname>mount.usrfstype=</varname> will default to the value
+        set in <varname>rootfstype=</varname>.</para>
+
+        <para>Otherwise, this value will be read from the
+        <filename>/usr</filename> entry in
+        <filename>/etc/fstab</filename> on the root filesystem.</para>
+
+        <para><varname>mount.usrfstype=</varname> is honored by the
+        initrd.</para></listitem>
+      </varlistentry>
+      <varlistentry>
+        <term><varname>mount.usrflags=</varname></term>
+
+        <listitem><para>Takes the <filename>/usr</filename> filesystem
+        mount options to use. If <varname>mount.usr=</varname> or
+        <varname>mount.usrfstype=</varname> is set, then
+        <varname>mount.usrflags=</varname> will default to the value
+        set in <varname>rootflags=</varname>.</para>
+
+        <para>Otherwise, this value will be read from the
+        <filename>/usr</filename> entry in
+        <filename>/etc/fstab</filename> on the root filesystem.</para>
+
+        <para><varname>mount.usrflags=</varname> is honored by the
+        initrd.</para></listitem>
+      </varlistentry>
+    </variablelist>
+  </refsect1>
+
+  <refsect1>
+    <title>See Also</title>
+    <para>
+      <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+      <citerefentry project='man-pages'><refentrytitle>fstab</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
+      <citerefentry><refentrytitle>systemd.mount</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
+      <citerefentry><refentrytitle>systemd.swap</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
+      <citerefentry><refentrytitle>systemd-cryptsetup-generator</refentrytitle><manvolnum>8</manvolnum></citerefentry>
+    </para>
+  </refsect1>
+
+</refentry>