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Re: [PLUG] Debian df command reports wrong usage on root partition
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In the message dated: Wed, 09 Aug 2006 18:49:14 EDT,
The pithy ruminations from Lee Marzke on
<[PLUG] Debian df command reports wrong usage on root partition> were:
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=> I'm having a weird problem on a Debian 3.1 system. After moving Gb of
=> data from the root partition to /var ( and replacing those directories
=> with symlinks )
=> my root partition is still full.
Ah, this is basically a question that I use when conducting interviews...
Let me take some wild guess...
You moved data from /var/log.
You haven't restarted syslog (or rebooted).
Here are some hints for tools that may help figure things out:
fuser
lsof
Hint:
how does "rm" work?
man 2 unlink
Finally, here are some nice explanations:
http://blogs.sun.com/roller/page/chrisg?entry=df_and_du
http://www.cyberciti.biz/nixcraft/vivek/blogger/2006/01/freebsd-why-command-df-and-du-reports.php
Mark
=>
=> Is there some known problem with df ? Are the LVM mounted
=> volumes causing it problems ?
=>
=> I've also looked at / with a graphical disk analysis tool, and all the disk
=> space is taken up by /home and /var - so why is 14Gb still showing up
=> as used under / ?
=>
=> df
=> Filesystem 1k-blocks Used Available
=> Use% Mounted on
=> /dev/sda2/ 87857 19645 73171
=> 22% /boot
=> /dev/sda3/ 17299036 14649436 1770848 90% /
=> /dev/mapper/sys-home 30963708 20959920 8430924 72% /home
=> /dev/mapper/sys-var 20970876 8716796 12254080 42% /var
=>
=>
=> If I add the size of all partitions ( excluding /boot, /home and /var )
=> I get 1.5Gb, however the df command above shows 14Gb in use.
=>
=> Here are the sized reported by du for all directories except in /boot,
=> /home, /var
=>
=> /tmp 24
=> /bin 3112
=> /dev 852
=> /lib 128472
=> /root 4500
=> /etc 404432
=> /usr 1021440
=> Total 1.54 Gb
=>
=> Also, the disks are on a Adaptec 2400 IDE RAID controller, HW RAID 1
=> that appear as SCSI drives sda2, sda3 JBOD, and the rest as LVM
=>
=> Thanks,
=>
=> Lee Marzke
=>
-----
Mark Bergman Biker, Rock Climber, Unix mechanic, IATSE #1 Stagehand
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