5 files changed, 42 insertions, 3 deletions

diff --git a/scripts/lib/wic/canned-wks/common.wks.inc b/scripts/lib/wic/canned-wks/common.wks.inc
index 89880b417b..4fd29fa8c1 100644
--- a/scripts/lib/wic/canned-wks/common.wks.inc
+++ b/scripts/lib/wic/canned-wks/common.wks.inc
@@ -1,3 +1,3 @@
 # This file is included into 3 canned wks files from this directory
 part /boot --source bootimg-pcbios --ondisk sda --label boot --active --align 1024
-part / --source rootfs --use-uuid --fstype=ext4 --label platform --align 1024
+part / --source rootfs --use-uuid --fstype=ext4 --mkfs-extraopts "-T default" --label platform --align 1024
diff --git a/scripts/lib/wic/canned-wks/directdisk-gpt.wks b/scripts/lib/wic/canned-wks/directdisk-gpt.wks
index 8d7d8de6ea..cf16c0c30b 100644
--- a/scripts/lib/wic/canned-wks/directdisk-gpt.wks
+++ b/scripts/lib/wic/canned-wks/directdisk-gpt.wks
@@ -4,7 +4,7 @@
 
 
 part /boot --source bootimg-pcbios --ondisk sda --label boot --active --align 1024
-part / --source rootfs --ondisk sda --fstype=ext4 --label platform --align 1024 --use-uuid
+part / --source rootfs --ondisk sda --fstype=ext4 --mkfs-extraopts "-T default" --label platform --align 1024 --use-uuid
 
 bootloader  --ptable gpt --timeout=0  --append="rootwait rootfstype=ext4 video=vesafb vga=0x318 console=tty0 console=ttyS0,115200n8"
 
diff --git a/scripts/lib/wic/canned-wks/mkefidisk.wks b/scripts/lib/wic/canned-wks/mkefidisk.wks
index 9f534fe184..d1878e23e5 100644
--- a/scripts/lib/wic/canned-wks/mkefidisk.wks
+++ b/scripts/lib/wic/canned-wks/mkefidisk.wks
@@ -4,7 +4,7 @@
 
 part /boot --source bootimg-efi --sourceparams="loader=grub-efi" --ondisk sda --label msdos --active --align 1024
 
-part / --source rootfs --ondisk sda --fstype=ext4 --label platform --align 1024 --use-uuid
+part / --source rootfs --ondisk sda --fstype=ext4 --mkfs-extraopts "-T default"  --label platform --align 1024 --use-uuid
 
 part swap --ondisk sda --size 44 --label swap1 --fstype=swap
 
diff --git a/scripts/lib/wic/misc.py b/scripts/lib/wic/misc.py
index 75b219cd3f..57c042c503 100644
--- a/scripts/lib/wic/misc.py
+++ b/scripts/lib/wic/misc.py
@@ -26,6 +26,7 @@ logger = logging.getLogger('wic')
 
 # executable -> recipe pairs for exec_native_cmd
 NATIVE_RECIPES = {"bmaptool": "bmap-tools",
+                  "dumpe2fs": "e2fsprogs",
                   "grub-mkimage": "grub-efi",
                   "isohybrid": "syslinux",
                   "mcopy": "mtools",
diff --git a/scripts/lib/wic/partition.py b/scripts/lib/wic/partition.py
index e574f40c47..85f9847047 100644
--- a/scripts/lib/wic/partition.py
+++ b/scripts/lib/wic/partition.py
@@ -298,6 +298,8 @@ class Partition():
         mkfs_cmd = "fsck.%s -pvfD %s" % (self.fstype, rootfs)
         exec_native_cmd(mkfs_cmd, native_sysroot, pseudo=pseudo)
 
+        self.check_for_Y2038_problem(rootfs, native_sysroot)
+
     def prepare_rootfs_btrfs(self, rootfs, cr_workdir, oe_builddir, rootfs_dir,
                              native_sysroot, pseudo):
         """
@@ -388,6 +390,8 @@ class Partition():
             (self.fstype, extraopts, label_str, self.fsuuid, rootfs)
         exec_native_cmd(mkfs_cmd, native_sysroot)
 
+        self.check_for_Y2038_problem(rootfs, native_sysroot)
+
     def prepare_empty_partition_btrfs(self, rootfs, oe_builddir,
                                       native_sysroot):
         """
@@ -449,3 +453,37 @@ class Partition():
 
         mkswap_cmd = "mkswap %s -U %s %s" % (label_str, self.fsuuid, path)
         exec_native_cmd(mkswap_cmd, native_sysroot)
+
+    def check_for_Y2038_problem(self, rootfs, native_sysroot):
+        """
+        Check if the filesystem is affected by the Y2038 problem
+        (Y2038 problem = 32 bit time_t overflow in January 2038)
+        """
+        def get_err_str(part):
+            err = "The {} filesystem {} has no Y2038 support."
+            if part.mountpoint:
+                args = [part.fstype, "mounted at %s" % part.mountpoint]
+            elif part.label:
+                args = [part.fstype, "labeled '%s'" % part.label]
+            elif part.part_name:
+                args = [part.fstype, "in partition '%s'" % part.part_name]
+            else:
+                args = [part.fstype, "in partition %s" % part.num]
+            return err.format(*args)
+
+        # ext2 and ext3 are always affected by the Y2038 problem
+        if self.fstype in ["ext2", "ext3"]:
+            logger.warn(get_err_str(self))
+            return
+
+        ret, out = exec_native_cmd("dumpe2fs %s" % rootfs, native_sysroot)
+
+        # if ext4 is affected by the Y2038 problem depends on the inode size
+        for line in out.splitlines():
+            if line.startswith("Inode size:"):
+                size = int(line.split(":")[1].strip())
+                if size < 256:
+                    logger.warn("%s Inodes (of size %d) are too small." %
+                                (get_err_str(self), size))
+                break
+