BLKID gives incomplete result

[YannUbuntu]

In the Boot-Repair log ( http://paste.ubuntu.com/1354254/ ) of this thread: http://askubuntu.com/questions/216627/problems-dualbooting-ubuntu-because-of-uefi/217035#217035 / http://ubuntuforums.org/showthread.php?t=2083639

We see that blkid outputs only this:

=================== blkid:
/dev/loop0: TYPE="squashfs"
/dev/sda7: UUID="322d3fa7-5d41-454b-993d-8e88fc569f54" TYPE="swap"
/dev/sdb1: LABEL="New Volume" UUID="3E8B-25CA" TYPE="vfat"

when parted/os-prober show many more partitions:

=================== os-prober:
/dev/sda3:Windows 7 (loader):Windows:chain
/dev/sda5:Windows Recovery Environment (loader):Windows1:chain

=================== parted -l:

Model: ATA Hitachi HTS54505 (scsi)
Disk /dev/sda: 500GB
Sector size (logical/physical): 512B/4096B
Partition Table: gpt

Number Start End Size File system Name Flags
1 1049kB 211MB 210MB fat32 EFI system partition boot
2 211MB 345MB 134MB Microsoft reserved partition msftres
3 345MB 200GB 200GB ntfs Basic data partition
4 200GB 254GB 53.7GB ntfs Basic data partition
6 254GB 469GB 215GB ext4
7 469GB 473GB 4096MB linux-swap(v1)
8 473GB 473GB 345MB bios_grub
5 473GB 500GB 26.8GB ntfs Basic data partition hidden, diag

Model: TE USB (scsi)
Disk /dev/sdb: 2117MB
Sector size (logical/physical): 512B/512B
Partition Table: msdos

Number Start End Size Type File system Flags
1 16.4kB 2117MB 2117MB primary fat32 boot