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I was partitioning a backup drive of 4.4TB, using fdisk. I got the following warning.

WARNING: The size of this disk is 4.4 TB (4398046511104 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).

I found that the issue is due to the limitation of the MSDOS partition table format, which could be overcome using GPT. As fdisk will not work with GPT, I used parted instead. But it does not support creation of ext3 file system.

How can this disk be partitioned and used as ext3 file system? Is there any convenient method?

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Isn't there a newfs command or something like that... Just create the partitions and then format them. – Chris S Apr 16 '11 at 2:25
Hi, I have partitioned the disk in the followig manner. The drive is partitioned using parted to ext2. Then formatted the partition to ext3 using the following commands. [root@server ~]# parted /dev/sdb (parted) mklabel gpt (parted) mkpartfs primary ext2 1 -1 For converting the ext2 file system to ext3, you can format the drive. [root@server /]# mkfs.ext3 /dev/sdb1 Please Note that this process will take hours depending on the size of the disk. It took almost 5 hours for the 4.4TB disk. – Ajo Augustine Apr 16 '11 at 16:41

gdisk supports GUID partition table format. The page also has links to tutorials.

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