Recently got 3TB external Hard Drive and trying to run it as second USB storage via USB hub. I followed http://www.dd-wrt.com/phpBB2/viewtopic.php?t=84919&postdays=0&postorder=asc&start=0 and fixed /opt mount on reboot via startup script provided by Frater. When i am connecting 3TB hard drive, router is detecting it(although showing as 801GB instead of 3TB) but it is not mounting it.
Here are the details.
I have partitioned 3TB harddrive into 2 (1.5TB each). Both are having NTFS.
root@E3000:~# fdisk -l
Disk /dev/sda: 4081 MB, 4081057792 bytes
57 heads, 56 sectors/track, 2497 cylinders
Units = cylinders of 3192 * 512 = 1634304 bytes
Disk identifier: 0xd93cbda4
Device Boot Start End Blocks Id System
/dev/sda1 1 613 978320 83 Linux
/dev/sda2 614 927 501144 82 Linux swap / Solaris
/dev/sda3 928 2497 2505720 83 Linux
Note: sector size is 4096 (not 512)
Disk /dev/sdb: 801.6 GB, 801569722368 bytes
255 heads, 63 sectors/track, 12181 cylinders
Units = cylinders of 16065 * 4096 = 65802240 bytes
Disk identifier: 0x3b613b8d
Device Boot Start End Blocks Id System
/dev/sdb1 1 22800 1465126912 7 HPFS/NTFS
/dev/sdb2 22801 45600 1465128000 7 HPFS/NTFS
Disk /dev/sda: 4081 MB, 4081057792 bytes
57 heads, 56 sectors/track, 2497 cylinders
Units = cylinders of 3192 * 512 = 1634304 bytes
Disk identifier: 0xd93cbda4
Device Boot Start End Blocks Id System
/dev/sda1 1 613 978320 83 Linux
/dev/sda2 614 927 501144 82 Linux swap / Solaris
/dev/sda3 928 2497 2505720 83 Linux
Disk /dev/sdb: 320.1 GB, 320072932864 bytes
255 heads, 62 sectors/track, 39540 cylinders
Units = cylinders of 15810 * 512 = 8094720 bytes
Disk identifier: 0xa4b57300
Device Boot Start End Blocks Id System
/dev/sdb1 1 39541 312568640+ c W95 FAT32 (LBA)
Note: sector size is 4096 (not 512)
Disk /dev/sdc: 801.6 GB, 801569722368 bytes
255 heads, 63 sectors/track, 12181 cylinders
Units = cylinders of 16065 * 4096 = 65802240 bytes
Disk identifier: 0x3b613b8d
Device Boot Start End Blocks Id System
/dev/sdc1 1 22800 1465126912 7 HPFS/NTFS
/dev/sdc2 22801 45600 1465128000 7 HPFS/NTFS
my understanding is that DD-WRT can;t mount drives physically greater than 2 TB due to there not being any support for GPUID formatted drives.
Only supports MBR formatted ones(limited to 2 TB and under). _________________ Please state what make and model router plus the build number and type of DD-WRT you are using. Screen prints and a network diagram can are also helpful. Before you create a new post, use the search function. Chances are your issue has happened to someone else.
i am on 19519 and it hasn;t worked. haven;t tried anything newer yet but if it did I am sure there would an avalanche of posts to indicate this is working.
so the wait continues..... _________________ Please state what make and model router plus the build number and type of DD-WRT you are using. Screen prints and a network diagram can are also helpful. Before you create a new post, use the search function. Chances are your issue has happened to someone else.
the OP already tried partitioning the drive to under 2TB partitions and it did not work. I did too and no luck under DD-WRT.
Oddly enough I even went as far as formatting the 3 TB Drive with MBR using Ubuntu and then creating partions under it of 1.5 each. Ubuntu could read and write to it but no luck with DD-WRT. _________________ Please state what make and model router plus the build number and type of DD-WRT you are using. Screen prints and a network diagram can are also helpful. Before you create a new post, use the search function. Chances are your issue has happened to someone else.
Joined: 14 Jan 2009 Posts: 406 Location: AB, Canada
Posted: Tue Feb 12, 2013 4:55 Post subject:
I am afraid the problem is not as simple as just enabling GPT as it it would not solve the problem. LBD (large block device) needs to be enabled to support large capacity devices. This will allow to use the device...at all. GPT will let you have a single large partition.
EDIT: NVM, trac issue suggests the same _________________
Nethear R6300 v2 - Latest Kong dd-wrt always
Linksys E3000 - Latest dd-wrt always
Asus RT-N56U - OpenWRT trunk
Although not the same. I had all sorts of problems getting my 2GB HDD working.
The only thing that worked in the end was flashing the KingKong version of dd-wrt. _________________ Check out my dd-wrt iOS app: https://apps.apple.com/app/dd-wrt/id897098616