Date: Tue, 4 May 2010 05:20:03 GMT From: "Andrey V. Elsukov" <bu7cher@yandex.ru> To: freebsd-bugs@FreeBSD.org Subject: Re: misc/146277: gpart add -s 128M creates 1GB partition on 4k sectorsize disk Message-ID: <201005040520.o445K3Lw026231@freefall.freebsd.org>
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The following reply was made to PR misc/146277; it has been noted by GNATS. From: "Andrey V. Elsukov" <bu7cher@yandex.ru> To: Jeremy Faulkner <gldisater@gmail.com> Cc: freebsd-gnats-submit@FreeBSD.org, Marcel Moolenaar <marcel@FreeBSD.org> Subject: Re: misc/146277: gpart add -s 128M creates 1GB partition on 4k sectorsize disk Date: Tue, 04 May 2010 08:59:13 +0400 On 04.05.2010 4:24, Jeremy Faulkner wrote: >> Description: > When using gpart to create a GPT partition on a device that has a sector size of 4k it will > create a partition that is much larger than requested. It appears to be using 512 sector size to > calculate the number of sectors to allocate even when the sector size is not 512. >> How-To-Repeat: > gnop create -S 4k<disk or partition> gpart create -s GPT<gnop'd disk or partition> gpart add -s > 512M -t freebsd-swap<gnop'd disk or partition> > > gpart will create a 4GB partition instead of a 512M partition This is known issue. When gpart(8) parses arguments it doesn't know about medium's sector size. -- WBR, Andrey V. Elsukov
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