Date: Wed, 19 Nov 2014 10:06:43 +0100 From: =?utf-8?Q?Jos=C3=A9_Mar=C3=ADa_Alcaide?= <jose@we.lc.ehu.es> To: freebsd-fs@freebsd.org Subject: Re: BIOS booting from disks > 2TB Message-ID: <17A2AC72-AD70-480A-9BAC-9CC8EAFD572F@we.lc.ehu.es>
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On Nov 19, 2014, at 8:06 AM, Pokala, Ravi wrote: > When you perform your installation, just make sure to select the GPT > option for partitioning. The installer (either `bsdinstall' (for stock > FreeBSD), or `pc-sysinstall' (for PC-BSD / FreeNAS)) should create = both > primary (near start-of-disk) and backup (at end-of-disk) GPT tables, = and > install the appropriate bootstrap code in the proper locations. >=20 Yes, bsdinstall flawlessly creates both primary and backup GPT tables = even using disks > 2 TB, by virtue of the FreeBSD kernel. The problem = arises at the first stages of booting, when gptboot tries to compare the = primary and backup tables *using the BIOS disk services*, which are not = able to reach anything after the 2 TB limit. As a consequence gptboot = fails, stating that it did not find the GPT backup table. -- Jose M. Alcaide
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