Date: Wed, 04 Oct 2006 13:55:36 +0000 From: "Honest Qiao" <honestqiao@hotmail.com> To: freebsd-questions@freebsd.org Subject: FreeBSD 6.1-PRERELEASE : rm swapfile after swapoff can't release the disk space Message-ID: <BAY103-F25DF6DB073E8D1F50E5F6BD21D0@phx.gbl>
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Environment: FreeBSD www141.igogo8.com 6.1-PRERELEASE FreeBSD 6.1-PRERELEASE #0: Fri May 12 12:12:17 CST 2006 HonestQiao@www141.igogo8.com:/usr/src/sys/i386/compile/iGOGO8-PAE i386 Description: Several months ago , I read the follow article, and add a 12G swapfile. The article url is http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/adding-swap-space.html The swapfile is /usr/swap0 , and I have a swap mount which size is 2G. top show: Swap: 14G Total, 14G Free Today , I use swapoff /usr/swap0 to disable swapfile , and then rm /usr/swap0. /usr/swap0 was deleted, but its disk space can't release. Now, top show: Swap: 2048M Total, 2048M Free www141# df -hi Filesystem Size Used Avail Capacity iused ifree %iused Mounted on /dev/amrd0s1a 248M 41M 187M 18% 1609 31413 5% / devfs 1.0K 1.0K 0B 100% 0 0 100% /dev /dev/amrd0s1f 19G 965M 17G 5% 1737 2636085 0% /db /dev/amrd0s1g 19G 12G 5.6G 69% 769803 1868019 29% /home /dev/amrd0s1d 248M 43M 185M 19% 585 32437 2% /tmp /dev/amrd0s1h 25G 19G 3.4G 85% 354372 3013562 11% /usr /dev/amrd0s1e 248M 65M 163M 29% 6430 26592 19% /var www141# du -csh /usr 9.3G /usr 9.3G total www141# mount /dev/amrd0s1a on / (ufs, local) devfs on /dev (devfs, local) /dev/amrd0s1f on /db (ufs, local, soft-updates) /dev/amrd0s1g on /home (ufs, local, soft-updates) /dev/amrd0s1d on /tmp (ufs, local, soft-updates) /dev/amrd0s1h on /usr (ufs, local, soft-updates) /dev/amrd0s1e on /var (ufs, local, soft-updates) from , df -hi show /usr use 19G but, du -csh /usr show use use 9.3G Why there has a big difference size between df and du? And How to get back the lost disk space? Also , you can visit it on http://www.freebsd.org/cgi/query-pr.cgi?pr=103867 Thanks! _________________________________________________________________ 与世界各地的朋友进行交流，免费下载 Live Messenger; http://get.live.com/messenger/overview
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