diff --git a/fs_mgr/libfstab/boot_config.cpp b/fs_mgr/libfstab/boot_config.cpp
index fee4015..53c843e 100644
--- a/fs_mgr/libfstab/boot_config.cpp
+++ b/fs_mgr/libfstab/boot_config.cpp
@@ -34,7 +34,7 @@
     // Set once and saves time for subsequent calls to this function
     static const std::string kAndroidDtDir = [] {
         std::string android_dt_dir;
-        if ((fs_mgr_get_boot_config_from_bootconfig_source("android_dt_dir", &android_dt_dir) ||
+        if ((GetBootconfig("androidboot.android_dt_dir", &android_dt_dir) ||
              fs_mgr_get_boot_config_from_kernel_cmdline("android_dt_dir", &android_dt_dir)) &&
             !android_dt_dir.empty()) {
             // Ensure the returned path ends with a /
@@ -51,6 +51,65 @@
     return kAndroidDtDir;
 }
 
+void ImportBootconfigFromString(const std::string& bootconfig,
+                                const std::function<void(std::string, std::string)>& fn) {
+    for (std::string_view line : android::base::Split(bootconfig, "\n")) {
+        const auto equal_pos = line.find('=');
+        std::string key = android::base::Trim(line.substr(0, equal_pos));
+        if (key.empty()) {
+            continue;
+        }
+        std::string value;
+        if (equal_pos != line.npos) {
+            value = android::base::Trim(line.substr(equal_pos + 1));
+            // If the value is a comma-delimited list, the kernel would insert a space between the
+            // list elements when read from /proc/bootconfig.
+            // BoardConfig.mk:
+            //      BOARD_BOOTCONFIG := key=value1,value2,value3
+            // /proc/bootconfig:
+            //      key = "value1", "value2", "value3"
+            if (key == "androidboot.boot_device" || key == "androidboot.boot_devices") {
+                // boot_device[s] is a special case where a list element can contain comma and the
+                // caller expects a space-delimited list, so don't remove space here.
+                value.erase(std::remove(value.begin(), value.end(), '"'), value.end());
+            } else {
+                // In order to not break the expectations of existing code, we modify the value to
+                // keep the format consistent with the kernel cmdline by removing quote and space.
+                std::string_view sv(value);
+                android::base::ConsumePrefix(&sv, "\"");
+                android::base::ConsumeSuffix(&sv, "\"");
+                value = android::base::StringReplace(sv, R"(", ")", ",", true);
+            }
+        }
+        // "key" and "key =" means empty value.
+        fn(std::move(key), std::move(value));
+    }
+}
+
+bool GetBootconfigFromString(const std::string& bootconfig, const std::string& key,
+                             std::string* out) {
+    bool found = false;
+    ImportBootconfigFromString(bootconfig, [&](std::string config_key, std::string value) {
+        if (!found && config_key == key) {
+            *out = std::move(value);
+            found = true;
+        }
+    });
+    return found;
+}
+
+void ImportBootconfig(const std::function<void(std::string, std::string)>& fn) {
+    std::string bootconfig;
+    android::base::ReadFileToString("/proc/bootconfig", &bootconfig);
+    ImportBootconfigFromString(bootconfig, fn);
+}
+
+bool GetBootconfig(const std::string& key, std::string* out) {
+    std::string bootconfig;
+    android::base::ReadFileToString("/proc/bootconfig", &bootconfig);
+    return GetBootconfigFromString(bootconfig, key, out);
+}
+
 }  // namespace fs_mgr
 }  // namespace android
 
@@ -88,44 +147,6 @@
     return result;
 }
 
-std::vector<std::pair<std::string, std::string>> fs_mgr_parse_proc_bootconfig(
-        const std::string& cmdline) {
-    static constexpr char quote = '"';
-
-    std::vector<std::pair<std::string, std::string>> result;
-    for (auto& line : android::base::Split(cmdline, "\n")) {
-        line.erase(std::remove(line.begin(), line.end(), quote), line.end());
-        auto equal_sign = line.find('=');
-        if (equal_sign == line.npos) {
-            if (!line.empty()) {
-                // no difference between <key> and <key>=
-                result.emplace_back(std::move(line), "");
-            }
-        } else {
-            result.emplace_back(android::base::Trim(line.substr(0, equal_sign)),
-                                android::base::Trim(line.substr(equal_sign + 1)));
-        }
-    }
-
-    return result;
-}
-
-bool fs_mgr_get_boot_config_from_bootconfig(const std::string& bootconfig,
-                                            const std::string& android_key, std::string* out_val) {
-    FSTAB_CHECK(out_val != nullptr);
-
-    const std::string bootconfig_key("androidboot." + android_key);
-    for (const auto& [key, value] : fs_mgr_parse_proc_bootconfig(bootconfig)) {
-        if (key == bootconfig_key) {
-            *out_val = value;
-            return true;
-        }
-    }
-
-    *out_val = "";
-    return false;
-}
-
 bool fs_mgr_get_boot_config_from_kernel(const std::string& cmdline, const std::string& android_key,
                                         std::string* out_val) {
     FSTAB_CHECK(out_val != nullptr);
@@ -142,17 +163,6 @@
     return false;
 }
 
-// Tries to get the given boot config value from bootconfig.
-// Returns true if successfully found, false otherwise.
-bool fs_mgr_get_boot_config_from_bootconfig_source(const std::string& key, std::string* out_val) {
-    std::string bootconfig;
-    if (!android::base::ReadFileToString("/proc/bootconfig", &bootconfig)) return false;
-    if (!bootconfig.empty() && bootconfig.back() == '\n') {
-        bootconfig.pop_back();
-    }
-    return fs_mgr_get_boot_config_from_bootconfig(bootconfig, key, out_val);
-}
-
 // Tries to get the given boot config value from kernel cmdline.
 // Returns true if successfully found, false otherwise.
 bool fs_mgr_get_boot_config_from_kernel_cmdline(const std::string& key, std::string* out_val) {
@@ -188,7 +198,8 @@
     }
 
     // next, check if we have the property in bootconfig
-    if (fs_mgr_get_boot_config_from_bootconfig_source(key, out_val)) {
+    const std::string config_key = "androidboot." + key;
+    if (android::fs_mgr::GetBootconfig(config_key, out_val)) {
         return true;
     }
 
diff --git a/fs_mgr/libfstab/fstab.cpp b/fs_mgr/libfstab/fstab.cpp
index 86ba031..3cbd8c8 100644
--- a/fs_mgr/libfstab/fstab.cpp
+++ b/fs_mgr/libfstab/fstab.cpp
@@ -864,21 +864,19 @@
 
 std::set<std::string> GetBootDevices() {
     // First check bootconfig, then kernel commandline, then the device tree
-    std::string dt_file_name = GetAndroidDtDir() + "boot_devices";
     std::string value;
-    if (fs_mgr_get_boot_config_from_bootconfig_source("boot_devices", &value) ||
-        fs_mgr_get_boot_config_from_bootconfig_source("boot_device", &value)) {
+    if (GetBootconfig("androidboot.boot_devices", &value) ||
+        GetBootconfig("androidboot.boot_device", &value)) {
         std::set<std::string> boot_devices;
-        // remove quotes and split by spaces
-        auto boot_device_strings = base::Split(base::StringReplace(value, "\"", "", true), " ");
-        for (std::string_view device : boot_device_strings) {
-            // trim the trailing comma, keep the rest.
+        // split by spaces and trim the trailing comma.
+        for (std::string_view device : android::base::Split(value, " ")) {
             base::ConsumeSuffix(&device, ",");
             boot_devices.emplace(device);
         }
         return boot_devices;
     }
 
+    std::string dt_file_name = GetAndroidDtDir() + "boot_devices";
     if (fs_mgr_get_boot_config_from_kernel_cmdline("boot_devices", &value) ||
         ReadDtFile(dt_file_name, &value)) {
         auto boot_devices = Split(value, ",");
diff --git a/fs_mgr/libfstab/fstab_priv.h b/fs_mgr/libfstab/fstab_priv.h
index 5d226f8..cc56825 100644
--- a/fs_mgr/libfstab/fstab_priv.h
+++ b/fs_mgr/libfstab/fstab_priv.h
@@ -16,6 +16,7 @@
 
 #pragma once
 
+#include <functional>
 #include <string>
 #include <utility>
 #include <vector>
@@ -29,11 +30,6 @@
                                         std::string* out_val);
 bool fs_mgr_get_boot_config_from_kernel_cmdline(const std::string& key, std::string* out_val);
 bool fs_mgr_get_boot_config(const std::string& key, std::string* out_val);
-std::vector<std::pair<std::string, std::string>> fs_mgr_parse_proc_bootconfig(
-        const std::string& bootconfig);
-bool fs_mgr_get_boot_config_from_bootconfig(const std::string& bootconfig, const std::string& key,
-                                            std::string* out_val);
-bool fs_mgr_get_boot_config_from_bootconfig_source(const std::string& key, std::string* out_val);
 
 bool fs_mgr_update_for_slotselect(android::fs_mgr::Fstab* fstab);
 bool is_dt_compatible();
@@ -46,5 +42,11 @@
 bool SkipMountWithConfig(const std::string& skip_config, Fstab* fstab, bool verbose);
 std::string GetFstabPath();
 
+void ImportBootconfigFromString(const std::string& bootconfig,
+                                const std::function<void(std::string, std::string)>& fn);
+
+bool GetBootconfigFromString(const std::string& bootconfig, const std::string& key,
+                             std::string* out);
+
 }  // namespace fs_mgr
 }  // namespace android
diff --git a/fs_mgr/libfstab/include/fstab/fstab.h b/fs_mgr/libfstab/include/fstab/fstab.h
index 0a45fe8..79a07ee 100644
--- a/fs_mgr/libfstab/include/fstab/fstab.h
+++ b/fs_mgr/libfstab/include/fstab/fstab.h
@@ -19,6 +19,7 @@
 #include <stdint.h>
 #include <sys/types.h>
 
+#include <functional>
 #include <set>
 #include <string>
 #include <vector>
@@ -128,5 +129,13 @@
 // If the platform does not configure a custom DT path, returns the standard one (based in procfs).
 const std::string& GetAndroidDtDir();
 
+// Import the kernel bootconfig by calling the callback |fn| with each key-value pair.
+void ImportBootconfig(const std::function<void(std::string, std::string)>& fn);
+
+// Get the kernel bootconfig value for |key|.
+// Returns true if |key| is found in bootconfig.
+// Otherwise returns false and |*out| is not modified.
+bool GetBootconfig(const std::string& key, std::string* out);
+
 }  // namespace fs_mgr
 }  // namespace android
diff --git a/fs_mgr/tests/Android.bp b/fs_mgr/tests/Android.bp
index b7f792f..2aeba0a 100644
--- a/fs_mgr/tests/Android.bp
+++ b/fs_mgr/tests/Android.bp
@@ -38,6 +38,8 @@
     ],
     static_libs: [
         "libfs_mgr",
+        "libgmock",
+        "libgtest",
     ],
     srcs: [
         "file_wait_test.cpp",
diff --git a/fs_mgr/tests/fs_mgr_test.cpp b/fs_mgr/tests/fs_mgr_test.cpp
index c51df2a..fbed371 100644
--- a/fs_mgr/tests/fs_mgr_test.cpp
+++ b/fs_mgr/tests/fs_mgr_test.cpp
@@ -29,11 +29,13 @@
 #include <android-base/strings.h>
 #include <fs_mgr.h>
 #include <fstab/fstab.h>
+#include <gmock/gmock.h>
 #include <gtest/gtest.h>
 
 #include "../fs_mgr_priv.h"
 
 using namespace android::fs_mgr;
+using namespace testing;
 
 namespace {
 
@@ -119,37 +121,42 @@
         {"terminator", "truncated"},
 };
 
-const std::string bootconfig =
-        "androidboot.bootdevice = \"1d84000.ufshc\"\n"
-        "androidboot.boot_devices = \"dev1\", \"dev2,withcomma\", \"dev3\"\n"
-        "androidboot.baseband = \"sdy\"\n"
-        "androidboot.keymaster = \"1\"\n"
-        "androidboot.serialno = \"BLAHBLAHBLAH\"\n"
-        "androidboot.slot_suffix = \"_a\"\n"
-        "androidboot.hardware.platform = \"sdw813\"\n"
-        "androidboot.hardware = \"foo\"\n"
-        "androidboot.revision = \"EVT1.0\"\n"
-        "androidboot.bootloader = \"burp-0.1-7521\"\n"
-        "androidboot.hardware.sku = \"mary\"\n"
-        "androidboot.hardware.radio.subtype = \"0\"\n"
-        "androidboot.dtbo_idx = \"2\"\n"
-        "androidboot.mode = \"normal\"\n"
-        "androidboot.hardware.ddr = \"1GB,combuchi,LPDDR4X\"\n"
-        "androidboot.ddr_info = \"combuchiandroidboot.ddr_size=2GB\"\n"
-        "androidboot.hardware.ufs = \"2GB,combushi\"\n"
-        "androidboot.boottime = \"0BLE:58,1BLL:22,1BLE:571,2BLL:105,ODT:0,AVB:123\"\n"
-        "androidboot.ramdump = \"disabled\"\n"
-        "androidboot.vbmeta.device = \"PARTUUID=aa08f1a4-c7c9-402e-9a66-9707cafa9ceb\"\n"
-        "androidboot.vbmeta.avb_version = \"1.1\"\n"
-        "androidboot.vbmeta.device_state = \"unlocked\"\n"
-        "androidboot.vbmeta.hash_alg = \"sha256\"\n"
-        "androidboot.vbmeta.size = \"5248\"\n"
-        "androidboot.vbmeta.digest = \""
-        "ac13147e959861c20f2a6da97d25fe79e60e902c022a371c5c039d31e7c68860\"\n"
-        "androidboot.vbmeta.invalidate_on_error = \"yes\"\n"
-        "androidboot.veritymode = \"enforcing\"\n"
-        "androidboot.verifiedbootstate = \"orange\"\n"
-        "androidboot.space = \"sha256 5248 androidboot.nospace = nope\"\n";
+const std::string bootconfig = R"(
+androidboot.bootdevice = "1d84000.ufshc"
+androidboot.boot_devices = "dev1", "dev2,withcomma", "dev3"
+androidboot.baseband = "sdy"
+androidboot.keymaster = "1"
+androidboot.serialno = "BLAHBLAHBLAH"
+androidboot.slot_suffix = "_a"
+androidboot.hardware.platform = "sdw813"
+androidboot.hardware = "foo"
+androidboot.revision = "EVT1.0"
+androidboot.bootloader = "burp-0.1-7521"
+androidboot.hardware.sku = "mary"
+androidboot.hardware.radio.subtype = "0"
+androidboot.dtbo_idx = "2"
+androidboot.mode = "normal"
+androidboot.hardware.ddr = "1GB,combuchi,LPDDR4X"
+androidboot.ddr_info = "combuchiandroidboot.ddr_size=2GB"
+androidboot.hardware.ufs = "2GB,combushi"
+androidboot.boottime = "0BLE:58,1BLL:22,1BLE:571,2BLL:105,ODT:0,AVB:123"
+androidboot.ramdump = "disabled"
+androidboot.vbmeta.device = "PARTUUID=aa08f1a4-c7c9-402e-9a66-9707cafa9ceb"
+androidboot.vbmeta.avb_version = "1.1"
+androidboot.vbmeta.device_state = "unlocked"
+androidboot.vbmeta.hash_alg = "sha256"
+androidboot.vbmeta.size = "5248"
+androidboot.vbmeta.digest = "ac13147e959861c20f2a6da97d25fe79e60e902c022a371c5c039d31e7c68860"
+androidboot.vbmeta.invalidate_on_error = "yes"
+androidboot.veritymode = "enforcing"
+androidboot.verifiedbootstate = "orange"
+androidboot.space = "sha256 5248 androidboot.nospace = nope"
+just.key
+key.empty.value =
+dessert.value = "ice, cream"
+dessert.list = "ice", "cream"
+ambiguous.list = ", ", ", "
+)";
 
 const std::vector<std::pair<std::string, std::string>> bootconfig_result_space = {
         {"androidboot.bootdevice", "1d84000.ufshc"},
@@ -182,6 +189,11 @@
         {"androidboot.veritymode", "enforcing"},
         {"androidboot.verifiedbootstate", "orange"},
         {"androidboot.space", "sha256 5248 androidboot.nospace = nope"},
+        {"just.key", ""},
+        {"key.empty.value", ""},
+        {"dessert.value", "ice, cream"},
+        {"dessert.list", "ice,cream"},
+        {"ambiguous.list", ", ,, "},
 };
 
 bool CompareFlags(FstabEntry::FsMgrFlags& lhs, FstabEntry::FsMgrFlags& rhs) {
@@ -231,25 +243,35 @@
     EXPECT_TRUE(content.empty()) << content;
 }
 
-TEST(fs_mgr, fs_mgr_parse_bootconfig) {
-    EXPECT_EQ(bootconfig_result_space, fs_mgr_parse_proc_bootconfig(bootconfig));
+TEST(fs_mgr, ImportBootconfig) {
+    std::vector<std::pair<std::string, std::string>> result;
+    ImportBootconfigFromString(bootconfig, [&](std::string key, std::string value) {
+        result.emplace_back(key, value);
+    });
+    EXPECT_THAT(result, ContainerEq(bootconfig_result_space));
 }
 
-TEST(fs_mgr, fs_mgr_get_boot_config_from_bootconfig) {
+TEST(fs_mgr, GetBootconfig) {
     std::string content;
-    for (const auto& entry : bootconfig_result_space) {
-        static constexpr char androidboot[] = "androidboot.";
-        if (!android::base::StartsWith(entry.first, androidboot)) continue;
-        auto key = entry.first.substr(strlen(androidboot));
-        EXPECT_TRUE(fs_mgr_get_boot_config_from_bootconfig(bootconfig, key, &content))
-                << " for " << key;
-        EXPECT_EQ(entry.second, content);
+    for (const auto& [key, value] : bootconfig_result_space) {
+        EXPECT_TRUE(GetBootconfigFromString(bootconfig, key, &content)) << " for " << key;
+        EXPECT_EQ(content, value);
     }
 
-    EXPECT_FALSE(fs_mgr_get_boot_config_from_bootconfig(bootconfig, "vbmeta.avb_versio", &content));
-    EXPECT_TRUE(content.empty()) << content;
-    EXPECT_FALSE(fs_mgr_get_boot_config_from_bootconfig(bootconfig, "nospace", &content));
-    EXPECT_TRUE(content.empty()) << content;
+    const std::string kUnmodifiedToken = "<UNMODIFIED>";
+    content = kUnmodifiedToken;
+    EXPECT_FALSE(android::fs_mgr::GetBootconfigFromString(bootconfig, "", &content));
+    EXPECT_EQ(content, kUnmodifiedToken) << "output parameter shouldn't be overridden";
+
+    content = kUnmodifiedToken;
+    EXPECT_FALSE(android::fs_mgr::GetBootconfigFromString(
+            bootconfig, "androidboot.vbmeta.avb_versio", &content));
+    EXPECT_EQ(content, kUnmodifiedToken) << "output parameter shouldn't be overridden";
+
+    content = kUnmodifiedToken;
+    EXPECT_FALSE(
+            android::fs_mgr::GetBootconfigFromString(bootconfig, "androidboot.nospace", &content));
+    EXPECT_EQ(content, kUnmodifiedToken) << "output parameter shouldn't be overridden";
 }
 
 TEST(fs_mgr, fs_mgr_read_fstab_file_proc_mounts) {
diff --git a/init/devices.cpp b/init/devices.cpp
index 7c23492..6b8474e 100644
--- a/init/devices.cpp
+++ b/init/devices.cpp
@@ -32,6 +32,7 @@
 #include <android-base/logging.h>
 #include <android-base/stringprintf.h>
 #include <android-base/strings.h>
+#include <fs_mgr.h>
 #include <libdm/dm.h>
 #include <private/android_filesystem_config.h>
 #include <selinux/android.h>
@@ -204,7 +205,7 @@
             }
         };
         ImportKernelCmdline(parser);
-        ImportBootconfig(parser);
+        android::fs_mgr::ImportBootconfig(parser);
         return partition_map;
     }();
 
diff --git a/init/property_service.cpp b/init/property_service.cpp
index 0e82022..3557787 100644
--- a/init/property_service.cpp
+++ b/init/property_service.cpp
@@ -1351,7 +1351,7 @@
 
 
 static void ProcessBootconfig() {
-    ImportBootconfig([&](const std::string& key, const std::string& value) {
+    android::fs_mgr::ImportBootconfig([&](const std::string& key, const std::string& value) {
         if (StartsWith(key, ANDROIDBOOT_PREFIX)) {
             InitPropertySet("ro.boot." + key.substr(ANDROIDBOOT_PREFIX.size()), value);
         }
diff --git a/init/reboot_utils.cpp b/init/reboot_utils.cpp
index e6b868e..547b186 100644
--- a/init/reboot_utils.cpp
+++ b/init/reboot_utils.cpp
@@ -27,6 +27,7 @@
 #include <android-base/properties.h>
 #include <android-base/strings.h>
 #include <cutils/android_reboot.h>
+#include <fs_mgr.h>
 #include <unwindstack/AndroidUnwinder.h>
 
 #include "capabilities.h"
@@ -48,13 +49,9 @@
 
     const std::string kInitFatalPanicParamString = "androidboot.init_fatal_panic";
     if (cmdline.find(kInitFatalPanicParamString) == std::string::npos) {
-        init_fatal_panic = false;
-        ImportBootconfig(
-                [kInitFatalPanicParamString](const std::string& key, const std::string& value) {
-                    if (key == kInitFatalPanicParamString && value == "true") {
-                        init_fatal_panic = true;
-                    }
-                });
+        std::string value;
+        init_fatal_panic = (android::fs_mgr::GetBootconfig(kInitFatalPanicParamString, &value) &&
+                            value == "true");
     } else {
         const std::string kInitFatalPanicString = kInitFatalPanicParamString + "=true";
         init_fatal_panic = cmdline.find(kInitFatalPanicString) != std::string::npos;
@@ -68,11 +65,7 @@
     const std::string kRebootTargetString = "androidboot.init_fatal_reboot_target";
     auto start_pos = cmdline.find(kRebootTargetString);
     if (start_pos == std::string::npos) {
-        ImportBootconfig([kRebootTargetString](const std::string& key, const std::string& value) {
-            if (key == kRebootTargetString) {
-                init_fatal_reboot_target = value;
-            }
-        });
+        android::fs_mgr::GetBootconfig(kRebootTargetString, &init_fatal_reboot_target);
         // We already default to bootloader if no setting is provided.
     } else {
         const std::string kRebootTargetStringPattern = kRebootTargetString + "=";
diff --git a/init/selinux.cpp b/init/selinux.cpp
index 51093d8..6fb028b 100644
--- a/init/selinux.cpp
+++ b/init/selinux.cpp
@@ -110,11 +110,11 @@
     });
 
     if (status == SELINUX_ENFORCING) {
-        ImportBootconfig([&](const std::string& key, const std::string& value) {
-            if (key == "androidboot.selinux" && value == "permissive") {
-                status = SELINUX_PERMISSIVE;
-            }
-        });
+        std::string value;
+        if (android::fs_mgr::GetBootconfig("androidboot.selinux", &value) &&
+            value == "permissive") {
+            status = SELINUX_PERMISSIVE;
+        }
     }
 
     return status;
diff --git a/init/util.cpp b/init/util.cpp
index 61d59a4..b34d45d 100644
--- a/init/util.cpp
+++ b/init/util.cpp
@@ -254,21 +254,6 @@
     }
 }
 
-void ImportBootconfig(const std::function<void(const std::string&, const std::string&)>& fn) {
-    std::string bootconfig;
-    android::base::ReadFileToString("/proc/bootconfig", &bootconfig);
-
-    for (const auto& entry : android::base::Split(bootconfig, "\n")) {
-        std::vector<std::string> pieces = android::base::Split(entry, "=");
-        if (pieces.size() == 2) {
-            // get rid of the extra space between a list of values and remove the quotes.
-            std::string value = android::base::StringReplace(pieces[1], "\", \"", ",", true);
-            value.erase(std::remove(value.begin(), value.end(), '"'), value.end());
-            fn(android::base::Trim(pieces[0]), android::base::Trim(value));
-        }
-    }
-}
-
 bool make_dir(const std::string& path, mode_t mode) {
     std::string secontext;
     if (SelabelLookupFileContext(path, mode, &secontext) && !secontext.empty()) {
diff --git a/init/util.h b/init/util.h
index 1c00a3e..0b0ef63 100644
--- a/init/util.h
+++ b/init/util.h
@@ -55,7 +55,6 @@
 bool mkdir_recursive(const std::string& pathname, mode_t mode);
 int wait_for_file(const char *filename, std::chrono::nanoseconds timeout);
 void ImportKernelCmdline(const std::function<void(const std::string&, const std::string&)>&);
-void ImportBootconfig(const std::function<void(const std::string&, const std::string&)>&);
 bool make_dir(const std::string& path, mode_t mode);
 bool is_dir(const char* pathname);
 Result<std::string> ExpandProps(const std::string& src);