Date: Tue, 3 Oct 2017 17:36:59 -0400 From: Allan Jude <allanjude@freebsd.org> To: freebsd-current@freebsd.org Subject: Re: Booting native 4K SSD disk from FreeBSD ? Message-ID: <ca1e0494-2c6a-53c5-1d53-215acddf3479@freebsd.org> In-Reply-To: <10608d2a-4209-25c1-4117-8568993bfe6a@selasky.org> References: <10608d2a-4209-25c1-4117-8568993bfe6a@selasky.org>
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On 10/03/2017 17:18, Hans Petter Selasky wrote: > Hi, > > I accidentially ordered a Sata SSD disk which diskinfo reports a > sector-size 4K instead of 512 bytes. Trying to get it to boot under > FreeBSD appeared impossible. Then I started looking into the boot0,1,2 > and loader and the assumptions they make about 512 byte sector size LBA :-( > > Anyone has any recommendations or experience about how to use native 4K > disks with FreeBSD? > > --HPS > _______________________________________________ > freebsd-current@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-current > To unsubscribe, send any mail to "freebsd-current-unsubscribe@freebsd.org" It is not possible in legacy/BIOS mode, because the BIOS calls do not let you specify a sector size. However, you SHOULD be able to boot from the 4k device using UEFI. I am trying to debug a problem I am having with this on my new Mac, which has a 4k NVMe disk. -- Allan Jude
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