blkid的BUG？我的系统中，逻辑分区有两个NTFS盘，blkid命令只检测到一个

两块硬盘，都是只能检测到第一个分区信息，而fdisk可以显示完全的信息，手工mount第二个分区却又没有问题

blkid信息如下：
[root@Xiaomw proc]# blkid
/dev/sda1: LABEL="System" UUID="4468259968258AAE" TYPE="ntfs"
/dev/sda2: UUID="357e66d9-1afb-4fc5-a7e1-b5d15be5dccf" TYPE="ext3"
/dev/sda3: UUID="6127f3d2-2113-49ac-959b-0767ad90d28d" TYPE="ext3"
/dev/sda5: LABEL="Soft" UUID="F61C62161C61D263" TYPE="ntfs"
/dev/sda7: UUID="ffcb6072-ee84-4617-a39a-35332d077bb4" TYPE="swap"
/dev/sdb3: UUID="e1221ae5-eaf4-43c0-88b9-9a75e9b33aea" TYPE="ext2"
/dev/sdb4: UUID="624c285a-d347-4a25-aed9-eac67053d650" TYPE="ext4"
/dev/sdb5: LABEL="Soft" UUID="F61C62161C61D263" TYPE="ntfs"
/dev/sdb1: LABEL="System" UUID="0874011474010662" TYPE="ntfs"

fdisk信息如下：
[root@Xiaomw proc]# fdisk -l

Disk /dev/sda: 250.1 GB, 250059350016 bytes
255 heads, 63 sectors/track, 30401 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0xd4c8afbe

Device Boot Start End Blocks Id System
/dev/sda1 * 1 2611 20972826 7 HPFS/NTFS
/dev/sda2 2612 3656 8393962+ 83 Linux
/dev/sda3 3657 4178 4192965 83 Linux
/dev/sda4 4179 30401 210636247+ f W95 Ext'd (LBA)
/dev/sda5 4179 17232 104856223+ 7 HPFS/NTFS
/dev/sda6 17233 30287 104864256 7 HPFS/NTFS
/dev/sda7 30288 30401 915673+ 83 Linux

Disk /dev/sdb: 250.1 GB, 250059350016 bytes
255 heads, 63 sectors/track, 30401 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0xf0b1ebb0

Device Boot Start End Blocks Id System
/dev/sdb1 * 1 2611 20972826 7 HPFS/NTFS
/dev/sdb2 5223 30401 202250317+ f W95 Ext'd (LBA)
/dev/sdb3 2612 2860 2000092+ 83 Linux
/dev/sdb4 2861 5222 18972765 83 Linux
/dev/sdb5 5223 17767 100767681 7 HPFS/NTFS
/dev/sdb6 17768 30312 100767681 7 HPFS/NTFS

Partition table entries are not in disk order