| someshpr |
09-13-2013 05:54 PM |
Mounting USB hard drive with 4kb sectors in CentOS 5.8
Hello,
I got a new 3TB external hard drive for backing up data from my Cent OS 5.8 machine. And I cannot mount it!
This is what I did:
Code:
somesh@mesozoic somesh$ sudo /sbin/fdisk -l
Disk /dev/sda: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/sda1 * 1 13 104391 83 Linux
/dev/sda2 14 12761 102398310 83 Linux
/dev/sda3 12762 13781 8193150 82 Linux swap / Solaris
/dev/sda4 13782 60801 377688150 5 Extended
/dev/sda5 13782 60801 377688118+ 83 Linux
Note: sector size is 4096 (not 512)
WARNING: The size of this disk is 3.0 TB (3000558944256 bytes).
DOS partition table format can not be used on drives for volumes
larger than 2.2 TB (2199023255040 bytes). Use parted(1) and GUID
partition table format (GPT).
Disk /dev/sdb: 3000.5 GB, 3000558944256 bytes
255 heads, 63 sectors/track, 45599 cylinders
Units = cylinders of 16065 * 4096 = 65802240 bytes
Device Boot Start End Blocks Id System
/dev/sdb1 1 45600 2930232320 7 HPFS/NTFS
somesh@mesozoic somesh$ sudo mount -t ntfs-3g /dev/sdb1 usb/
Failed to read last sector (732558079): Invalid argument
HINTS: Either the volume is a RAID/LDM but it wasn't setup yet,
or it was not setup correctly (e.g. by not using mdadm --build ...),
or a wrong device is tried to be mounted,
or the partition table is corrupt (partition is smaller than NTFS),
or the NTFS boot sector is corrupt (NTFS size is not valid).
Failed to mount '/dev/sdb1': Invalid argument
The device '/dev/sdb1' doesn't seem to have a valid NTFS.
Maybe the wrong device is used? Or the whole disk instead of a
partition (e.g. /dev/sda, not /dev/sda1)? Or the other way around?
Following the last line, I tried /dev/sdb instead of /dev/sdb1 with same error!
Then I searched some and found somewhere that I should really use parted for more info. And that got me here:
Code:
somesh@mesozoic somesh$ sudo /sbin/parted -l
Model: ATA Hitachi HDT72105 (scsi)
Disk /dev/sda: 500GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
Number Start End Size Type File system Flags
1 32.3kB 107MB 107MB primary ext3 boot
2 107MB 105GB 105GB primary ext3
3 105GB 113GB 8390MB primary linux-swap
4 113GB 500GB 387GB extended
5 113GB 500GB 387GB logical ext3
You found a bug in GNU Parted! Here's what you have to do:
Don't panic! The bug has most likely not affected any of your data.
Help us to fix this bug by doing the following:
Check whether the bug has already been fixed by checking
the last version of GNU Parted that you can find at:
http://ftp.gnu.org/gnu/parted/
Please check this version prior to bug reporting.
If this has not been fixed yet or if you don't know how to check,
please visit the GNU Parted website:
http://www.gnu.org/software/parted
for further information.
Your report should contain the version of this release (1.8.1)
along with the error message below, the output of
parted DEVICE unit co print unit s print
and additional information about your setup you consider important.
Error: SEGV_MAPERR (Address not mapped to object)
Then finally I came across this webpage, which says:
Quote:
4 kilobyte physical sectors, 4 kilobyte logical sector harddisks require firmware and software modifications to function. This type of 4 kilobytes sector disks is currently not supported in Red Hat Enterprise Linux 5
|
Looking back at the fdisk output I see that the new hard disk has sector size of 4kb (I am not sure whether this is physical sector or logical sector).
This got me bummed. So my question is can I any way mount this hard drive on my Cent OS 5.8 machine?
TIA,
Somesh |
