gpt-auto-generator: merge efi-boot-generator

This commit is contained in:
Kay Sievers 2015-07-29 16:50:49 +02:00
parent e4e6699395
commit 59512f21d7
10 changed files with 280 additions and 319 deletions

1
.gitignore vendored
View file

@ -73,7 +73,6 @@
/systemd-debug-generator
/systemd-delta
/systemd-detect-virt
/systemd-efi-boot-generator
/systemd-escape
/systemd-export
/systemd-firstboot

View file

@ -91,7 +91,6 @@ MANPAGES += \
man/systemd-debug-generator.8 \
man/systemd-delta.1 \
man/systemd-detect-virt.1 \
man/systemd-efi-boot-generator.8 \
man/systemd-escape.1 \
man/systemd-fsck@.service.8 \
man/systemd-fstab-generator.8 \
@ -2304,7 +2303,6 @@ EXTRA_DIST += \
man/systemd-debug-generator.xml \
man/systemd-delta.xml \
man/systemd-detect-virt.xml \
man/systemd-efi-boot-generator.xml \
man/systemd-escape.xml \
man/systemd-firstboot.xml \
man/systemd-fsck@.service.xml \

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@ -2426,16 +2426,6 @@ EXTRA_DIST += \
# ------------------------------------------------------------------------------
if ENABLE_EFI
systemgenerator_PROGRAMS += \
systemd-efi-boot-generator
systemd_efi_boot_generator_SOURCES = \
src/efi-boot-generator/efi-boot-generator.c
systemd_efi_boot_generator_LDADD = \
libshared.la
# ------------------------------------------------------------------------------
if HAVE_BLKID
bootctl_SOURCES = \
src/boot/bootctl.c

View file

@ -86,7 +86,7 @@
<listitem><para>The boot partition used for bringing up the
system. On EFI systems this is possibly the EFI System
Partition, also see
<citerefentry><refentrytitle>systemd-efi-boot-generator</refentrytitle><manvolnum>8</manvolnum></citerefentry>.
<citerefentry><refentrytitle>systemd-gpt-auto-generator</refentrytitle><manvolnum>8</manvolnum></citerefentry>.
This directory is usually strictly local to the host, and
should be considered read-only, except when a new kernel or
boot loader is installed. This directory only exists on
@ -804,7 +804,7 @@
<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
<citerefentry project='man-pages'><refentrytitle>hier</refentrytitle><manvolnum>7</manvolnum></citerefentry>,
<citerefentry><refentrytitle>systemd-path</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
<citerefentry><refentrytitle>systemd-efi-boot-generator</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
<citerefentry><refentrytitle>systemd-gpt-auto-generator</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
<citerefentry><refentrytitle>sysctl.d</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
<citerefentry><refentrytitle>tmpfiles.d</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
<citerefentry project='die-net'><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry>,

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@ -1,85 +0,0 @@
<?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 2013 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-efi-boot-generator">
<refentryinfo>
<title>systemd-efi-boot-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-efi-boot-generator</refentrytitle>
<manvolnum>8</manvolnum>
</refmeta>
<refnamediv>
<refname>systemd-efi-boot-generator</refname>
<refpurpose>Generator for automatically mounting the
EFI System Partition used by the current boot to
<filename>/boot</filename></refpurpose>
</refnamediv>
<refsynopsisdiv>
<para><filename>/usr/lib/systemd/system-generators/systemd-efi-boot-generator</filename></para>
</refsynopsisdiv>
<refsect1>
<title>Description</title>
<para><filename>systemd-efi-boot-generator</filename> is a
generator that automatically creates mount and automount units for
the EFI System Partition (ESP), mounting it to
<filename>/boot</filename>. Note that this generator will execute
no operation on non-EFI systems, on systems where the boot loader
does not communicate the used ESP to the OS, on systems where
<filename>/boot</filename> is an explicitly configured mount (for
example, listed in
<citerefentry project='man-pages'><refentrytitle>fstab</refentrytitle><manvolnum>5</manvolnum></citerefentry>)
or where the <filename>/boot</filename> mount point is non-empty.
Since this generator creates an automount unit, the mount will
only be activated on-demand, when accessed.</para>
<para><filename>systemd-efi-boot-generator</filename> implements
<citerefentry><refentrytitle>systemd.generator</refentrytitle><manvolnum>7</manvolnum></citerefentry>.</para>
</refsect1>
<refsect1>
<title>See Also</title>
<para>
<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
<citerefentry><refentrytitle>systemd.mount</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
<citerefentry><refentrytitle>systemd.automount</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
<citerefentry><refentrytitle>systemd-gpt-auto-generator</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
<citerefentry project='man-pages'><refentrytitle>fstab</refentrytitle><manvolnum>5</manvolnum></citerefentry>
</para>
</refsect1>
</refentry>

View file

@ -150,10 +150,16 @@
<filename>/etc/crypttab</filename> with a different device mapper
device name.</para>
<para>Also note that
<citerefentry><refentrytitle>systemd-efi-boot-generator</refentrytitle><manvolnum>8</manvolnum></citerefentry>
will mount the EFI System Partition (ESP) to
<filename>/boot</filename> if not otherwise mounted.</para>
<para>Mount and automount units for the EFI System Partition (ESP),
mounting it to <filename>/boot</filename> are generated on EFI
systems, where the boot loader communicates the used ESP to the operating
system. Since this generator creates an automount unit, the mount will
only be activated on-demand, when accessed. On systems where
<filename>/boot</filename> is an explicitly configured mount
(for example, listed in
<citerefentry project='man-pages'><refentrytitle>fstab</refentrytitle><manvolnum>5</manvolnum></citerefentry>)
or where the <filename>/boot</filename> mount point is non-empty, no
mount units are generated.</para>
<para>When using this generator in conjunction with btrfs file
systems, make sure to set the correct default subvolumes on them,
@ -170,7 +176,6 @@
<citerefentry><refentrytitle>systemd.mount</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
<citerefentry><refentrytitle>systemd.swap</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
<citerefentry><refentrytitle>systemd-fstab-generator</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
<citerefentry><refentrytitle>systemd-efi-boot-generator</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
<citerefentry><refentrytitle>systemd-cryptsetup@.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
<citerefentry project='die-net'><refentrytitle>cryptsetup</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
<citerefentry project='man-pages'><refentrytitle>fstab</refentrytitle><manvolnum>5</manvolnum></citerefentry>,

View file

@ -331,7 +331,6 @@ find $dir</programlisting>
<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
<citerefentry><refentrytitle>systemd-cryptsetup-generator</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
<citerefentry><refentrytitle>systemd-debug-generator</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
<citerefentry><refentrytitle>systemd-efi-boot-generator</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
<citerefentry><refentrytitle>systemd-fstab-generator</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
<citerefentry project='man-pages'><refentrytitle>fstab</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
<citerefentry><refentrytitle>systemd-getty-generator</refentrytitle><manvolnum>8</manvolnum></citerefentry>,

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@ -1 +0,0 @@
../Makefile

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@ -1,162 +0,0 @@
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
/***
This file is part of systemd.
Copyright 2013 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 <unistd.h>
#include <stdlib.h>
#include "efivars.h"
#include "path-util.h"
#include "util.h"
#include "mkdir.h"
#include "virt.h"
#include "generator.h"
#include "special.h"
static const char *arg_dest = "/tmp";
int main(int argc, char *argv[]) {
_cleanup_free_ char *what = NULL;
_cleanup_fclose_ FILE *f = NULL;
int r = EXIT_SUCCESS;
sd_id128_t id;
char *name;
if (argc > 1 && argc != 4) {
log_error("This program takes three or no arguments.");
return EXIT_FAILURE;
}
if (argc > 1)
arg_dest = argv[3];
log_set_target(LOG_TARGET_SAFE);
log_parse_environment();
log_open();
umask(0022);
if (in_initrd()) {
log_debug("In initrd, exiting.");
return EXIT_SUCCESS;
}
if (detect_container(NULL) > 0) {
log_debug("In a container, exiting.");
return EXIT_SUCCESS;
}
if (!is_efi_boot()) {
log_debug("Not an EFI boot, exiting.");
return EXIT_SUCCESS;
}
r = path_is_mount_point("/boot", AT_SYMLINK_FOLLOW);
if (r > 0) {
log_debug("/boot is already a mount point, exiting.");
return EXIT_SUCCESS;
}
if (r == -ENOENT)
log_debug("/boot does not exist, continuing.");
else if (dir_is_empty("/boot") <= 0) {
log_debug("/boot already populated, exiting.");
return EXIT_SUCCESS;
}
r = efi_loader_get_device_part_uuid(&id);
if (r == -ENOENT) {
log_debug("EFI loader partition unknown, exiting.");
return EXIT_SUCCESS;
} else if (r < 0) {
log_error_errno(r, "Failed to read ESP partition UUID: %m");
return EXIT_FAILURE;
}
name = strjoina(arg_dest, "/boot.mount");
f = fopen(name, "wxe");
if (!f) {
log_error_errno(errno, "Failed to create mount unit file %s: %m", name);
return EXIT_FAILURE;
}
r = asprintf(&what,
"/dev/disk/by-partuuid/%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x",
SD_ID128_FORMAT_VAL(id));
if (r < 0) {
log_oom();
return EXIT_FAILURE;
}
fprintf(f,
"# Automatially generated by systemd-efi-boot-generator\n\n"
"[Unit]\n"
"Description=EFI System Partition\n"
"Documentation=man:systemd-efi-boot-generator(8)\n");
r = generator_write_fsck_deps(f, arg_dest, what, "/boot", "vfat");
if (r < 0)
return EXIT_FAILURE;
fprintf(f,
"\n"
"[Mount]\n"
"What=%s\n"
"Where=/boot\n"
"Type=vfat\n"
"Options=umask=0077,noauto\n",
what);
r = fflush_and_check(f);
if (r < 0) {
log_error_errno(r, "Failed to write mount unit file: %m");
return EXIT_FAILURE;
}
name = strjoina(arg_dest, "/boot.automount");
fclose(f);
f = fopen(name, "wxe");
if (!f) {
log_error_errno(errno, "Failed to create automount unit file %s: %m", name);
return EXIT_FAILURE;
}
fputs("# Automatially generated by systemd-efi-boot-generator\n\n"
"[Unit]\n"
"Description=EFI System Partition Automount\n\n"
"[Automount]\n"
"Where=/boot\n"
"TimeoutIdleSec=120\n", f);
r = fflush_and_check(f);
if (r < 0) {
log_error_errno(r, "Failed to write automount unit file: %m");
return EXIT_FAILURE;
}
name = strjoina(arg_dest, "/" SPECIAL_LOCAL_FS_TARGET ".wants/boot.automount");
mkdir_parents(name, 0755);
if (symlink("../boot.automount", name) < 0) {
log_error_errno(errno, "Failed to create symlink %s: %m", name);
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}

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@ -46,51 +46,6 @@ static bool arg_enabled = true;
static bool arg_root_enabled = true;
static bool arg_root_rw = false;
static int add_swap(const char *path) {
_cleanup_free_ char *name = NULL, *unit = NULL, *lnk = NULL;
_cleanup_fclose_ FILE *f = NULL;
int r;
assert(path);
log_debug("Adding swap: %s", path);
r = unit_name_from_path(path, ".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, "Failed to create unit file %s: %m", unit);
fprintf(f,
"# Automatically generated by systemd-gpt-auto-generator\n\n"
"[Unit]\n"
"Description=Swap Partition\n"
"Documentation=man:systemd-gpt-auto-generator(8)\n\n"
"[Swap]\n"
"What=%s\n",
path);
fflush(f);
if (ferror(f))
return log_error_errno(errno, "Failed to write unit file %s: %m", unit);
lnk = strjoin(arg_dest, "/" SPECIAL_SWAP_TARGET ".wants/", 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 int add_cryptsetup(const char *id, const char *what, bool rw, char **device) {
_cleanup_free_ char *e = NULL, *n = NULL, *p = NULL, *d = NULL, *to = NULL;
_cleanup_fclose_ FILE *f = NULL;
@ -202,6 +157,7 @@ static int add_mount(
const char *where,
const char *fstype,
bool rw,
const char *options,
const char *description,
const char *post) {
@ -262,7 +218,10 @@ static int add_mount(
if (fstype)
fprintf(f, "Type=%s\n", fstype);
fprintf(f, "Options=%s\n", rw ? "rw" : "ro");
if (options)
fprintf(f, "Options=%s,%s\n", options, rw ? "rw" : "ro");
else
fprintf(f, "Options=%s\n", rw ? "rw" : "ro");
fflush(f);
if (ferror(f))
@ -281,6 +240,104 @@ static int add_mount(
return 0;
}
static int add_automount(
const char *id,
const char *what,
const char *where,
const char *fstype,
bool rw,
const char *options,
const char *description,
usec_t timeout) {
_cleanup_free_ char *unit = NULL, *lnk = NULL, *crypto_what = NULL;
_cleanup_free_ char *opt, *p = NULL;
_cleanup_fclose_ FILE *f = NULL;
int r;
assert(id);
assert(where);
assert(description);
if (options)
opt = strjoin(options, ",noauto", NULL);
else
opt = strdup("noauto");
if (!opt)
return log_oom();
r = add_mount(id,
what,
where,
fstype,
rw,
opt,
description,
NULL);
if (r < 0)
return r;
r = unit_name_from_path(where, ".automount", &unit);
if (r < 0)
return log_error_errno(r, "Failed to generate unit name: %m");
p = strjoin(arg_dest, "/", unit, NULL);
if (!p)
return log_oom();
f = fopen(p, "wxe");
if (!f)
return log_error_errno(errno, "Failed to create unit file %s: %m", unit);
fprintf(f,
"# Automatically generated by systemd-gpt-auto-generator\n\n"
"[Unit]\n"
"Description=%s\n"
"Documentation=man:systemd-gpt-auto-generator(8)\n"
"[Automount]\n"
"Where=%s\n"
"TimeoutIdleSec=%lld\n",
description,
where,
(unsigned long long)timeout / USEC_PER_SEC);
fflush(f);
if (ferror(f))
return log_error_errno(errno, "Failed to write unit file %s: %m", p);
lnk = strjoin(arg_dest, "/" SPECIAL_LOCAL_FS_TARGET ".wants/", unit, NULL);
if (!lnk)
return log_oom();
mkdir_parents_label(lnk, 0755);
if (symlink(p, lnk) < 0)
return log_error_errno(errno, "Failed to create symlink %s: %m", lnk);
return 0;
}
static bool path_is_busy(const char *where) {
int r;
/* already a mountpoint; generators run during reload */
r = path_is_mount_point(where, AT_SYMLINK_FOLLOW);
if (r > 0)
return false;
/* the directory might not exist on a stateless system */
if (r == -ENOENT)
return false;
if (r < 0)
return true;
/* not a mountpoint but it contains files */
if (dir_is_empty(where) <= 0)
return true;
return false;
}
static int probe_and_add_mount(
const char *id,
const char *what,
@ -298,8 +355,7 @@ static int probe_and_add_mount(
assert(where);
assert(description);
if (path_is_mount_point(where, AT_SYMLINK_FOLLOW) <= 0 &&
dir_is_empty(where) <= 0) {
if (path_is_busy(where)) {
log_debug("%s already populated, ignoring.", where);
return 0;
}
@ -335,21 +391,163 @@ static int probe_and_add_mount(
where,
fstype,
rw,
NULL,
description,
post);
}
static int add_swap(const char *path) {
_cleanup_free_ char *name = NULL, *unit = NULL, *lnk = NULL;
_cleanup_fclose_ FILE *f = NULL;
int r;
assert(path);
log_debug("Adding swap: %s", path);
r = unit_name_from_path(path, ".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, "Failed to create unit file %s: %m", unit);
fprintf(f,
"# Automatically generated by systemd-gpt-auto-generator\n\n"
"[Unit]\n"
"Description=Swap Partition\n"
"Documentation=man:systemd-gpt-auto-generator(8)\n\n"
"[Swap]\n"
"What=%s\n",
path);
fflush(f);
if (ferror(f))
return log_error_errno(errno, "Failed to write unit file %s: %m", unit);
lnk = strjoin(arg_dest, "/" SPECIAL_SWAP_TARGET ".wants/", 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 int add_boot(const char *what) {
#ifdef ENABLE_EFI
_cleanup_blkid_free_probe_ blkid_probe b = NULL;
const char *fstype = NULL, *uuid = NULL;
sd_id128_t id, type_id;
int r;
assert(what);
if (!is_efi_boot()) {
log_debug("Not an EFI boot, ignoring /boot.");
return 0;
}
if (in_initrd()) {
log_debug("In initrd, ignoring /boot.");
return 0;
}
if (detect_container(NULL) > 0) {
log_debug("In a container, ignoring /boot.");
return 0;
}
if (path_is_busy("/boot")) {
log_debug("/boot already populated, ignoring.");
return 0;
}
r = efi_loader_get_device_part_uuid(&id);
if (r == -ENOENT) {
log_debug("EFI loader partition unknown.");
return 0;
}
if (r < 0) {
log_error_errno(r, "Failed to read ESP partition UUID: %m");
return r;
}
errno = 0;
b = blkid_new_probe_from_filename(what);
if (!b) {
if (errno == 0)
return log_oom();
log_error_errno(errno, "Failed to allocate prober: %m");
return -errno;
}
blkid_probe_enable_partitions(b, 1);
blkid_probe_set_partitions_flags(b, BLKID_PARTS_ENTRY_DETAILS);
errno = 0;
r = blkid_do_safeprobe(b);
if (r == -2 || r == 1) /* no result or uncertain */
return 0;
else if (r != 0)
return log_error_errno(errno ?: EIO, "Failed to probe %s: %m", what);
(void) blkid_probe_lookup_value(b, "TYPE", &fstype, NULL);
if (!streq(fstype, "vfat")) {
log_debug("Partition for /boot is not a FAT filesystem, ignoring.");
return 0;
}
r = blkid_probe_lookup_value(b, "PART_ENTRY_UUID", &uuid, NULL);
if (r != 0) {
log_debug_errno(r, "Partition for /boot does not have a UUID, ignoring. %m");
return 0;
}
if (sd_id128_from_string(uuid, &type_id) < 0) {
log_debug("Partition for /boot does not have a valid UUID, ignoring.");
return 0;
}
if (!sd_id128_equal(type_id, id)) {
log_debug("Partition for /boot does not appear to be the partition we are booted from.");
return 0;
}
r = add_automount("boot",
what,
"/boot",
"vfat",
"EFI System Partition Automount",
false,
"umask=0077",
120 * USEC_PER_SEC);
return r;
#else
return 0;
#endif
}
static int enumerate_partitions(dev_t devnum) {
_cleanup_udev_enumerate_unref_ struct udev_enumerate *e = NULL;
_cleanup_udev_device_unref_ struct udev_device *d = NULL;
_cleanup_blkid_free_probe_ blkid_probe b = NULL;
_cleanup_udev_unref_ struct udev *udev = NULL;
_cleanup_free_ char *home = NULL, *srv = NULL;
_cleanup_free_ char *boot = NULL, *home = NULL, *srv = NULL;
struct udev_list_entry *first, *item;
struct udev_device *parent = NULL;
const char *name, *node, *pttype, *devtype;
int home_nr = -1, srv_nr = -1;
int boot_nr = -1, home_nr = -1, srv_nr = -1;
bool home_rw = true, srv_rw = true;
blkid_partlist pl;
int r, k;
@ -521,6 +719,19 @@ static int enumerate_partitions(dev_t devnum) {
if (k < 0)
r = k;
} else if (sd_id128_equal(type_id, GPT_ESP)) {
/* We only care for the first /boot partition */
if (boot && nr >= boot_nr)
continue;
boot_nr = nr;
free(boot);
boot = strdup(subnode);
if (!boot)
return log_oom();
} else if (sd_id128_equal(type_id, GPT_HOME)) {
/* We only care for the first /home partition */
@ -551,6 +762,12 @@ static int enumerate_partitions(dev_t devnum) {
}
}
if (boot) {
k = add_boot(boot);
if (k < 0)
r = k;
}
if (home) {
k = probe_and_add_mount("home", home, "/home", home_rw, "Home Partition", SPECIAL_LOCAL_FS_TARGET);
if (k < 0)
@ -645,6 +862,7 @@ static int add_root_mount(void) {
in_initrd() ? "/sysroot" : "/",
NULL,
arg_root_rw,
NULL,
"Root Partition",
in_initrd() ? SPECIAL_INITRD_ROOT_FS_TARGET : SPECIAL_LOCAL_FS_TARGET);
#else