Date: Tue, 15 Jan 2008 16:15:49 +0000 From: "Christian Walther" <cptsalek@gmail.com> To: jamesh@lanl.gov Cc: Aryeh Friedman <aryeh.friedman@gmail.com>, freebsd-questions@freebsd.org Subject: Re: Shrinking a partition Message-ID: <14989d6e0801150815h3e006d45kaa7d3b91c2ae4cd0@mail.gmail.com> In-Reply-To: <1200408956.619.59.camel@p25dual1.lanl.gov> References: <bef9a7920801150445l37c35886gfc3441a2f6a85057@mail.gmail.com> <1200408956.619.59.camel@p25dual1.lanl.gov>
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On 15/01/2008, James Harrison <jamesh@lanl.gov> wrote: > On Tue, 2008-01-15 at 07:45 -0500, Aryeh Friedman wrote: > > After installing FreeBSD and Vista (463 GB and 30 GB respectivally) I > > found out I don't have enough free space on my 500 GB drive on the > > vista partition. How do I determine how much I can shrink the > > FreeBSD partition by safely (by just moving the end sector in > > fdisk(1))? > > I'd imagine that you could use the output of df -h to see how much > you're using on the /usr partition and then shrink appropriately. > AFAIK UFS (as well as other Unix FS) don't simply start writing at the beginning of a filesystem and continue until the end is reached. It's possible that data is written near the end of a filesystem nearly instantly after the first mount. To make sure that you don't loose any data I'd dump the FS to a save place and restore it afterwards using a LiveCD.
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