Mount Issues

LiNuXMaN31509 · 10-19-2014, 03:59 AM

Hello everyone,

I have installed Xencenter so I can create a few VMs to work on different things.

I have a 1TB drive that I used to same my media mostly movies. Before installing Xencenter on the new server, I had this drive working and mounted on a server using CentOS 6.4 with no problem all I had to do was install fuse and ntfs-3g and it mounted with out any issues.

When I try to mount it on the host that has Xencenter so I can share it with the VMs here is what I run into:

Code:

[root@localhost ~]# fdisk -l

Disk /dev/sda: 1000.2 GB, 1000204886016 bytes
255 heads, 63 sectors/track, 121601 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Disk /dev/sda doesn't contain a valid partition table

WARNING: GPT (GUID Partition Table) detected on '/dev/sdb'! The util fdisk doesn't support GPT. Use GNU Parted.

Code:

[root@localhost ~]# mount /dev/sda1 /mnt/media/
mount: you must specify the filesystem type

Code:

[root@localhost ~]# mount -t ntfs /dev/sda1 /mnt/media/
mount: wrong fs type, bad option, bad superblock on /dev/sda1,
       missing codepage or other error
       In some cases useful info is found in syslog - try
       dmesg | tail  or so

The above commands worked with NO problems on the other server MIND you I have installed Fuse and ntfs-3g on the Xenserver host and nothing.

I even tried the following:

Code:

[root@localhost ~]# parted /dev/sda print
Error: Unable to open /dev/sda - unrecognised disk label.                 
Information: Don't forget to update /etc/fstab, if necessary.

Is there anything else at all I can do to mount this drive? I always used /dev/sda1 and it worked and now it won't and I have attached it back to the old host and it works fine.

Any and all help would be greatly appreciated!!

Also, let me know if I need to provide any other information so I can do so as soon as possible.

Thank you

simrika · 10-19-2014, 06:34 PM

Create a valid partition first. Then mount with ext4 partition type. NTFS is windows file system.

LiNuXMaN31509 · 10-19-2014, 09:05 PM

Hello,

Does this delete the data already on the disk? I have about 500+ GB of movies on there. I was able to mount it on a different server and now it won't mount on this Xenserver.

astrogeek · 10-19-2014, 09:23 PM

Quote:

Originally Posted by LiNuXMaN31509

Hello,

Does this delete the data already on the disk? I have about 500+ GB of movies on there. I was able to mount it on a different server and now it won't mount on this Xenserver.

Yes that would destroy any data on the drive - very bad advice!

If it mounts under the CentOS system then don't do anything to the drive itself - sort out the xenserver as that would seem to be where the problem is.

I don't know anything about xenserver, but presumably GNU/Linux and you said that you have installed ntfs-3g support... is this an external USB drive or internal? Are we sure it is /dev/sda under xencenter?

LiNuXMaN31509 · 10-19-2014, 10:30 PM

Hello,

It's a internal drive and the xencenter OS sees the drive:

[root@localhost ~]# fdisk -l

Disk /dev/sda: 1000.2 GB, 1000204886016 bytes
255 heads, 63 sectors/track, 121601 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Disk /dev/sda doesn't contain a valid partition table

[root@localhost ~]# cat /var/log/dmesg | grep sda
[ 4.370970] sd 0:0:0:0: [sda] 1953525168 512-byte logical blocks: (1.00 TB/931 GiB)
[ 4.370997] sd 0:0:0:0: [sda] Write Protect is off
[ 4.370999] sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00
[ 4.371021] sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[ 4.371114] sda: detected capacity change from 0 to 1000204886016
[ 4.371118] sda:
[ 4.402807] sda1
[ 4.403021] sd 0:0:0:0: [sda] Attached SCSI disk

I wonder if there is something else I need to install on here besides fuse and ntfs-3g to get this working but I'm not sure.

astrogeek · 10-20-2014, 03:50 PM

I see that now - the Xencenter machine does detect the drive, but thinks that it has no partition table.

Quote:

Originally Posted by LiNuXMaN31509

Code:

[root@localhost ~]# mount -t ntfs /dev/sda1 /mnt/media/
mount: wrong fs type, bad option, bad superblock on /dev/sda1,
       missing codepage or other error
       In some cases useful info is found in syslog - try
       dmesg | tail  or so

The above commands worked with NO problems on the other server MIND you I have installed Fuse and ntfs-3g on the Xenserver host and nothing.

The above would seem to be inconsistent with what you are seeing on the Xencenter machine. Can you please confirm that the CentOS machine really did mount the /dev/sda1 partition as indicated.

If so, then the Xencenter machine is not seeing the partition table. If not, then is it possible that the entire drive was formatted as ntfs without having been partitioned? (I seem to recall that is possible but I have not used ntfs for years).

Sorry for the delayed response, I am otherwise occupied most of this week.

Could others with ntfs and/or Xencenter help to offer please consider this a ++bump++ and help LiNuXMaN31509 if possible. Otherwise I'll respond as time permits.

LiNuXMaN31509 · 10-21-2014, 08:18 AM

Hello,

Yes I can confirm the drive used to work on the old media server I used to have. I used to use Plex as the media server and this drive stored all of my movies.

Also, I checked the last back up of the old media server I had before I took it down and this is what I had in that systems fstab to auto mount the drive on a reboot:

/dev/sda1 /mnt/media ntfs defaults 0 0

The only problem I had is that I needed to install fuse and ntfs-3g on the system before it would mount the drive. I tried it on the new system but it's still not working. Do you think I should try and re-install fuse and ntfs-3g?

Thank You!

vwtech · 10-22-2014, 09:39 AM

Don't format the disk unless you want to lose all that data.

If the disk partition table was created with gpt you should be able to see it by using parted vice fdisk.
Review this link http://www.cyberciti.biz/faq/redhat-...tfs3g-support/