diff --git a/packages/initramfs/sysutils/busybox-initramfs/config/busybox-initramfs.conf b/packages/initramfs/sysutils/busybox-initramfs/config/busybox-initramfs.conf
index 8a4704d105..c7cd567942 100644
--- a/packages/initramfs/sysutils/busybox-initramfs/config/busybox-initramfs.conf
+++ b/packages/initramfs/sysutils/busybox-initramfs/config/busybox-initramfs.conf
@@ -1,7 +1,7 @@
#
# Automatically generated make config: don't edit
# Busybox version: 1.20.2
-# Tue Aug 7 00:21:10 2012
+# Wed Nov 14 00:10:51 2012
#
CONFIG_HAVE_DOT_CONFIG=y
@@ -612,6 +612,7 @@ CONFIG_FEATURE_VOLUMEID_EXT=y
CONFIG_FEATURE_VOLUMEID_BTRFS=y
CONFIG_FEATURE_VOLUMEID_REISERFS=y
CONFIG_FEATURE_VOLUMEID_FAT=y
+CONFIG_FEATURE_VOLUMEID_EXFAT=y
CONFIG_FEATURE_VOLUMEID_HFS=y
CONFIG_FEATURE_VOLUMEID_JFS=y
CONFIG_FEATURE_VOLUMEID_XFS=y
diff --git a/packages/sysutils/busybox/config/busybox.conf b/packages/sysutils/busybox/config/busybox.conf
index bf88897a03..eb69bfd269 100644
--- a/packages/sysutils/busybox/config/busybox.conf
+++ b/packages/sysutils/busybox/config/busybox.conf
@@ -1,7 +1,7 @@
#
# Automatically generated make config: don't edit
# Busybox version: 1.20.2
-# Fri Oct 12 19:25:56 2012
+# Wed Nov 14 00:10:25 2012
#
CONFIG_HAVE_DOT_CONFIG=y
@@ -612,6 +612,7 @@ CONFIG_FEATURE_VOLUMEID_EXT=y
CONFIG_FEATURE_VOLUMEID_BTRFS=y
CONFIG_FEATURE_VOLUMEID_REISERFS=y
CONFIG_FEATURE_VOLUMEID_FAT=y
+CONFIG_FEATURE_VOLUMEID_EXFAT=y
CONFIG_FEATURE_VOLUMEID_HFS=y
CONFIG_FEATURE_VOLUMEID_JFS=y
CONFIG_FEATURE_VOLUMEID_XFS=y
diff --git a/packages/sysutils/busybox/patches/busybox-1.20.2-999-volume_id_add_exFAT_detection.patch b/packages/sysutils/busybox/patches/busybox-1.20.2-999-volume_id_add_exFAT_detection.patch
new file mode 100644
index 0000000000..c051406877
--- /dev/null
+++ b/packages/sysutils/busybox/patches/busybox-1.20.2-999-volume_id_add_exFAT_detection.patch
@@ -0,0 +1,211 @@
+
+
+From e4b9451413013388757cf48fbb16d8137ddd1ccb Mon Sep 17 00:00:00 2001
+From: S-G Bergh <sgb@systemasis.org>
+Date: Tue, 13 Nov 2012 13:40:37 +0000
+Subject: volume_id: add exFAT detection
+
+function old new delta
+volume_id_probe_exfat - 294 +294
+
+Signed-off-by: S-G Bergh <sgb@systemasis.org>
+Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
+---
+diff --git a/util-linux/Config.src b/util-linux/Config.src
+index 3355e97..e4516dd 100644
+--- a/util-linux/Config.src
++++ b/util-linux/Config.src
+@@ -734,6 +734,15 @@ config FEATURE_VOLUMEID_FAT
+ help
+ TODO
+
++config FEATURE_VOLUMEID_EXFAT
++ bool "exFAT filesystem"
++ default y
++ depends on VOLUMEID
++ help
++ exFAT (extended FAT) is a proprietary file system designed especially
++ for flash drives. It has many features from NTFS, but with less
++ overhead. exFAT is used on most SDXC cards for consumer electronics.
++
+ config FEATURE_VOLUMEID_HFS
+ bool "hfs filesystem"
+ default y
+diff --git a/util-linux/volume_id/Kbuild.src b/util-linux/volume_id/Kbuild.src
+index 39a2d8c..759fdaa 100644
+--- a/util-linux/volume_id/Kbuild.src
++++ b/util-linux/volume_id/Kbuild.src
+@@ -33,6 +33,7 @@ lib-$(CONFIG_FEATURE_VOLUMEID_LINUXSWAP) += linux_swap.o
+ ### lib-$(CONFIG_FEATURE_VOLUMEID_MSDOS) += msdos.o
+ lib-$(CONFIG_FEATURE_VOLUMEID_NILFS) += nilfs.o
+ lib-$(CONFIG_FEATURE_VOLUMEID_NTFS) += ntfs.o
++lib-$(CONFIG_FEATURE_VOLUMEID_EXFAT) += exfat.o
+ lib-$(CONFIG_FEATURE_VOLUMEID_REISERFS) += reiserfs.o
+ lib-$(CONFIG_FEATURE_VOLUMEID_UDF) += udf.o
+ ### lib-$(CONFIG_FEATURE_VOLUMEID_UFS) += ufs.o
+diff --git a/util-linux/volume_id/exfat.c b/util-linux/volume_id/exfat.c
+new file mode 100644
+index 0000000..a38a891
+--- a/dev/null
++++ b/util-linux/volume_id/exfat.c
+@@ -0,0 +1,130 @@
++/*
++ * volume_id - reads filesystem label and uuid
++ *
++ * Copyright (C) 2012 S-G Bergh <sgb@systemasis.org>
++ *
++ * This library 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.
++ *
++ * This library 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 this library; if not, write to the Free Software
++ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
++ */
++
++#include "volume_id_internal.h"
++
++#define EXFAT_SB_OFFSET 0
++#define EXFAT_DIR_ENTRY_SZ 32
++#define EXFAT_MAX_DIR_ENTRIES 100
++
++struct exfat_super_block {
++/* 0x00 */ uint8_t boot_jump[3];
++/* 0x03 */ uint8_t fs_name[8];
++/* 0x0B */ uint8_t must_be_zero[53];
++/* 0x40 */ uint64_t partition_offset;
++/* 0x48 */ uint64_t volume_length;
++/* 0x50 */ uint32_t fat_offset; // Sector address of 1st FAT
++/* 0x54 */ uint32_t fat_size; // In sectors
++/* 0x58 */ uint32_t cluster_heap_offset; // Sector address of Data Region
++/* 0x5C */ uint32_t cluster_count;
++/* 0x60 */ uint32_t root_dir; // Cluster address of Root Directory
++/* 0x64 */ uint8_t vol_serial_nr[4]; // Volume ID
++/* 0x68 */ uint16_t fs_revision; // VV.MM
++/* 0x6A */ uint16_t vol_flags;
++/* 0x6C */ uint8_t bytes_per_sector; // Power of 2: 9 => 512, 12 => 4096
++/* 0x6D */ uint8_t sectors_per_cluster; // Power of 2
++/* 0x6E */ uint8_t nr_of_fats; // 2 for TexFAT
++/* 0x6F */ // ...
++} PACKED;
++
++struct exfat_dir_entry {
++/* 0x00 */ uint8_t entry_type;
++ union {
++ struct volume_label {
++/* 0x01 */ uint8_t char_count; // Length of label
++/* 0x02 */ uint16_t vol_label[11]; // UTF16 string without null termination
++/* 0x18 */ uint8_t reserved[8];
++/* 0x20 */ } PACKED label;
++ struct volume_guid {
++/* 0x01 */ uint8_t sec_count;
++/* 0x02 */ uint16_t set_checksum;
++/* 0x04 */ uint16_t flags;
++/* 0x06 */ uint8_t vol_guid[16];
++/* 0x16 */ uint8_t reserved[10];
++/* 0x20 */ } PACKED guid;
++ } PACKED type;
++} PACKED;
++
++int FAST_FUNC volume_id_probe_exfat(struct volume_id *id /*,uint64_t off*/)
++{
++ struct exfat_super_block *sb;
++ struct exfat_dir_entry *de;
++ unsigned sector_sz;
++ unsigned cluster_sz;
++ uint64_t root_dir_off;
++ unsigned count;
++ unsigned need_lbl_guid;
++
++ // Primary super block
++ dbg("exFAT: probing at offset 0x%x", EXFAT_SB_OFFSET);
++ sb = volume_id_get_buffer(id, EXFAT_SB_OFFSET, sizeof(*sb));
++
++ if (!sb)
++ return -1;
++
++ if (memcmp(sb->fs_name, "EXFAT ", 8) != 0)
++ return -1;
++
++ sector_sz = 1 << sb->bytes_per_sector;
++ cluster_sz = sector_sz << sb->sectors_per_cluster;
++ // There are no clusters 0 and 1, so the first cluster is 2.
++ root_dir_off = (uint64_t)EXFAT_SB_OFFSET +
++ // Hmm... should we cast sector_sz/cluster_sz to uint64_t?
++ (le32_to_cpu(sb->cluster_heap_offset)) * sector_sz +
++ (le32_to_cpu(sb->root_dir) - 2) * cluster_sz;
++ dbg("exFAT: sector size 0x%x bytes", sector_sz);
++ dbg("exFAT: cluster size 0x%x bytes", cluster_sz);
++ dbg("exFAT: root dir is at 0x%llx", (long long)root_dir_off);
++
++ // Use DOS uuid as fallback, if no GUID set
++ volume_id_set_uuid(id, sb->vol_serial_nr, UUID_DOS);
++
++ // EXFAT_MAX_DIR_ENTRIES is used as a safety belt.
++ // The Root Directory may hold an unlimited number of entries,
++ // so we do not want to check all. Usually label and GUID
++ // are in the beginning, but there are no guarantees.
++ need_lbl_guid = (1 << 0) | (1 << 1);
++ for (count = 0; count < EXFAT_MAX_DIR_ENTRIES; count++) {
++ de = volume_id_get_buffer(id, root_dir_off + (count * EXFAT_DIR_ENTRY_SZ), EXFAT_DIR_ENTRY_SZ);
++ if (de == NULL)
++ break;
++ if (de->entry_type == 0x00) {
++ // End of Directory Marker
++ dbg("exFAT: End of root directory reached after %u entries", count);
++ break;
++ }
++ if (de->entry_type == 0x83) {
++ // Volume Label Directory Entry
++ volume_id_set_label_unicode16(id, (uint8_t *)de->type.label.vol_label,
++ LE, 2 * de->type.label.char_count);
++ need_lbl_guid &= ~(1 << 0);
++ }
++ if (de->entry_type == 0xA0) {
++ // Volume GUID Directory Entry
++ volume_id_set_uuid(id, de->type.guid.vol_guid, UUID_DCE);
++ need_lbl_guid &= ~(1 << 1);
++ }
++ if (!need_lbl_guid)
++ break;
++ }
++
++ IF_FEATURE_BLKID_TYPE(id->type = "exfat";)
++ return 0;
++}
+diff --git a/util-linux/volume_id/volume_id.c b/util-linux/volume_id/volume_id.c
+index c1d6152..3c3c698 100644
+--- a/util-linux/volume_id/volume_id.c
++++ b/util-linux/volume_id/volume_id.c
+@@ -93,6 +93,9 @@ static const probe_fptr fs1[] = {
+ #if ENABLE_FEATURE_VOLUMEID_FAT
+ volume_id_probe_vfat,
+ #endif
++#if ENABLE_FEATURE_VOLUMEID_EXFAT
++ volume_id_probe_exfat,
++#endif
+ #if ENABLE_FEATURE_VOLUMEID_MAC
+ volume_id_probe_mac_partition_map,
+ #endif
+diff --git a/util-linux/volume_id/volume_id_internal.h b/util-linux/volume_id/volume_id_internal.h
+index 1c2e0ff..03dc46f 100644
+--- a/util-linux/volume_id/volume_id_internal.h
++++ b/util-linux/volume_id/volume_id_internal.h
+@@ -216,6 +216,8 @@ int FAST_FUNC volume_id_probe_nilfs(struct volume_id *id /*,uint64_t off*/);
+
+ int FAST_FUNC volume_id_probe_ntfs(struct volume_id *id /*,uint64_t off*/);
+
++int FAST_FUNC volume_id_probe_exfat(struct volume_id *id /*,uint64_t off*/);
++
+ int FAST_FUNC volume_id_probe_ocfs2(struct volume_id *id /*,uint64_t off*/);
+
+ int FAST_FUNC volume_id_probe_reiserfs(struct volume_id *id /*,uint64_t off*/);
+--
+cgit v0.9.0.1-2-gef13
+Frequency
Performing
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60volume
53exfat
36uint
35linux
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