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Mounting ufs2 multi-disk partition on Fedora 20

I have a 10TB UFS (ufs2) partition on 4 3TB disks that I'd like to have mounted on Fedora so I can move it to an EXT4 or XFS partition.

Fedora sees the disks as /dev/sdb /dev/sdc /dev/sdd and /dev/sde

this disk utility tells me that /dev/sd[bde] are of Contents: Unknown — but /dev/sdc is listed as Content: Unknown (ufs 2)

that gives me hope that it knows the drive type and might be mountable. But reading the man pages for mount and stab there is no means to specify multi drives for a mount point. Also no means to use the full raw drive, mount wants to use a slice.


[root@fedora-nas-local brian]# fdisk -l /dev/sd[bcde]

Disk /dev/sdb: 2.7 TiB, 3000592982016 bytes, 5860533168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes

Disk /dev/sdc: 2.7 TiB, 3000592982016 bytes, 5860533168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes

Disk /dev/sdd: 2.7 TiB, 3000592982016 bytes, 5860533168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes

Disk /dev/sde: 2.7 TiB, 3000592982016 bytes, 5860533168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes

[root@fedora-nas-local brian]# cat /proc/partitions 
major minor  #blocks  name

   8        0  234431064 sda
   8        1     498688 sda1
   8        2     499712 sda2
   8        3     499712 sda3
   8        4          1 sda4
   8        5    1998848 sda5
   8        6   76498944 sda6
   8        7   76498944 sda7
   8        8   77930496 sda8
   8       16 2930266584 sdb
   8       32 2930266584 sdc
  11        0    1048575 sr0
   8       48 2930266584 sdd
   8       64 2930266584 sde
[root@fedora-nas-local brian]# 

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bs98909
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bs98909
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Seth SimmonsSr. Systems AdministratorCommented:
i don't have my fedora 20 box in front of me, but you should be able to specify ufs2 with mount

not sure what you mean by "multi drives for a mount point"
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bs98909Author Commented:
The FreeNAS has the one UFS2 file system as a RAID5 across sdb sdc add and sde.
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Seth SimmonsSr. Systems AdministratorCommented:
ok that was the missing piece; didn't specify before how these drives were setup
i now understand the issue

as-is, you won't be able to use the drives individually since it was part of a raid array
if you want to move the data to a different file system, you would have to have additional drives on the fedora system and move the files across while they are online in freenas
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bs98909Author Commented:
I moved all of the dat off on new disks and now I'll nuke the volume. It is such a pain, this day and age you'd think that they would have the ability to read that they could adopt the specs to make the file systems compatible. But I think I am a dreamer.

thank you, sorry for the delay in responding.
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