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Old 11-18-2010, 08:48 AM   #1
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Registered: Oct 2009
Location: The Hague, The Netherlands
Distribution: Ubuntu 10.04 LTS
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Partitioning a RAID drive?


I have split two large disks into four partitions each and created four RAID1 devices out of them. The RAID devices are subsequently synchronized and formatted as ext4 without errors. After that fdisk -l complains that the devices do not contain a valid partition table.

Can someone explain this to me? Do I have to partition the RAID devices as well?

Looking forward to your reply.

Old 11-19-2010, 02:46 AM   #2
Registered: Apr 2010
Location: Johannesburg
Distribution: Fedora 14, RHEL 5.5, CentOS 5.5, Ubuntu 10.04
Posts: 559

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Hi djspits,

Yes you definitely have to partition them. fdisk is warning you that the RAID devices have no partition table.

Before you can format filesystems on these devices; and mount them you need to partition. You can use fdisk to do this partitioning.
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