Environment: FreeBSD www141.igogo8.com 6.1-PRERELEASE FreeBSD
6.1-PRERELEASE #0: Fri May 12 12:12:17 CST 2006
[EMAIL PROTECTED]:/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!
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