In article <1144608726.320824.240550@z34g2000cwc.googlegroups .com>,
ehabaziz2001@gmail.com writes:
> to avoid that message in installation .

When?
What platform?
What disks?

> Is low format to hard drive can
> solve that problem ?

No.

The installation process will label the disk, which will solve the problem.
If it's coming from a disk which you aren't installing on to, then label
the disk using format(1M) (or fmthard(1M) for a lower level utility).

--
Andrew Gabriel