Large file system creation

Wojciech Puchar wojtek at
Tue Apr 8 13:38:54 UTC 2008

>> Hi all.  I'm trying to create a ~9TB partition on a new file server.
>> I thought FreeBSD now supported this (I'm on 7.0), but I can't figure
>> it out.  I go into sysinstall, create the partition in fdisk using "A
>> = Use Entire Disk), write it to disk, exit sysinstall and re-run
>> it...and sysinstall doesn't show what it showed before I exited last
>> time.
>> Can someone shed some light on what I'm doing wrong here?
> The filesystem (UFS2) supports disks larger than 2TB, but fdisk(8) and
> bsdlabel(8) (which are what sysinstall uses to partition the disk) do not
> support disks larger than 2TB due to limitations in the on-disk format they
> use.
> You will need to use gpt(8) instead to partition your disk.

or don't partition at all

> This cannot be done from sysinstall and you normally cannot boot from
> a gpt(8)-partitioned disk due to lack of support in the BIOS of most PC.

or use old disk, pendrive, DVD-ROM etc. for booting

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