/$ cat /proc/mtd
dev:    size   erasesize  name
mtd0: 05f00000 00020000 "rootfs"
mtd1: 05f00000 00020000 "rootfs_update"
mtd2: 00800000 00020000 "data"
mtd3: 00100000 00020000 "nvram"
mtd4: 05f00000 00020000 "image_update"
mtd5: 05f00000 00020000 "image"
mtd6: 10000000 00020000 "dummy1"
mtd7: 10000000 00020000 "dummy2"
mtd8: 00100000 00020000 "misc3"
mtd9: 02f00000 00020000 "misc2"
mtd10: 00800000 00020000 "misc1"
mtd11: 05619000 0001f000 "rootfs_ubifs"
mtd12: 0001f000 0001f000 "METADATA"
mtd13: 0001f000 0001f000 "METADATACOPY"
mtd14: 00356bbd 0001f000 "filestruct_full.bin"
mtd15: 006c8000 0001f000 "data"
/$ ubiattach /dev/ubi_ctrl -m 10
ubiattach: error!: cannot attach mtd10
           error 22 (Invalid argument)
/$ ubinfo -a
UBI version:                    1
Count of UBI devices:           2
UBI control device major/minor: 10:59
Present UBI devices:            ubi0, ubi1

ubi0
Volumes count:                           4
Logical eraseblock size:                 126976 bytes, 124.0 KiB
Total amount of logical eraseblocks:     760 (96501760 bytes, 92.0 MiB)
Amount of available logical eraseblocks: 0 (0 bytes)
Maximum count of volumes                 128
Count of bad physical eraseblocks:       0
Count of reserved physical eraseblocks:  15
Current maximum erase counter value:     1
Minimum input/output unit size:          2048 bytes
Character device major/minor:            252:0
Present volumes:                         0, 1, 2, 10

Volume ID:   0 (on ubi0)
Type:        dynamic
Alignment:   1
Size:        711 LEBs (90279936 bytes, 86.0 MiB)
State:       OK
Name:        rootfs_ubifs
Character device major/minor: 252:1
-----------------------------------
Volume ID:   1 (on ubi0)
Type:        dynamic
Alignment:   1
Size:        1 LEBs (126976 bytes, 124.0 KiB)
State:       OK
Name:        METADATA
Character device major/minor: 252:2
-----------------------------------
Volume ID:   2 (on ubi0)
Type:        dynamic
Alignment:   1
Size:        1 LEBs (126976 bytes, 124.0 KiB)
State:       OK
Name:        METADATACOPY
Character device major/minor: 252:3
-----------------------------------
-----------------------------------
-----------------------------------
-----------------------------------
-----------------------------------
-----------------------------------
-----------------------------------
-----------------------------------
Volume ID:   10 (on ubi0)
Type:        static
Alignment:   1
Size:        28 LEBs (3555328 bytes, 3.3 MiB)
Data bytes:  3500989 bytes (3.3 MiB)
State:       OK
Name:        filestruct_full.bin
Character device major/minor: 252:11

===================================

ubi1
Volumes count:                           1
Logical eraseblock size:                 126976 bytes, 124.0 KiB
Total amount of logical eraseblocks:     64 (8126464 bytes, 7.7 MiB)
Amount of available logical eraseblocks: 0 (0 bytes)
Maximum count of volumes                 128
Count of bad physical eraseblocks:       0
Count of reserved physical eraseblocks:  4
Current maximum erase counter value:     24
Minimum input/output unit size:          2048 bytes
Character device major/minor:            251:0
Present volumes:                         0

Volume ID:   0 (on ubi1)
Type:        dynamic
Alignment:   1
Size:        56 LEBs (7110656 bytes, 6.7 MiB)
State:       OK
Name:        data
Character device major/minor: 251:1