Status of support for 4KB disk sectors

Kevin Oberman kob6558 at
Mon Jul 18 22:50:16 UTC 2011

I just want to check on the status of 4K sector support in FreeBSD.  I read
a long thread on the topic from a while back and it looks like I might hit some
issues if I'm not REALLY careful. Since I will be keeping the existing Windows
installation, I need to be sure that I can set up the disk correctly without
screwing up Windows 7.

I was planning on just DDing the W7 slice over, but I am not sure how well this
would play with GPT. Or should I not try to use GPT at all? I'd like
to as this laptop
spreads Windows 7 over two slices and adds a third for the recovery
system, leaving
only one for FreeBSD and I'd like to put my files in a separate slice.
GPT would offer
that fifth slice.

I have read the handbook and don't see any reference to 4K sectors and only a
one-liner about gpart(8) and GPT. Oncew I get this all figured out,
I'll see about writing
an update about this as GPT looks like the way to go in e future.
R. Kevin Oberman, Network Engineer - Retired
E-mail: kob6558 at

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