/root partition full

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wp.rauchholz
Posts: 35
Joined: 2016/11/20 11:58:45

/root partition full

Postby wp.rauchholz » 2017/10/18 01:51:38

My root partition was 100% full. I moved files from /var/log to an external disk. How can I find out which files from this partition are not needed and could be moved / deleted?

/dev/mapper/centos-root 50G 47G 3.4G 94% /
devtmpfs 3.8G 0 3.8G 0% /dev
tmpfs 3.8G 8.0K 3.8G 1% /dev/shm
tmpfs 3.8G 49M 3.8G 2% /run
tmpfs 3.8G 0 3.8G 0% /sys/fs/cgroup
/dev/sdc 1.9T 509G 1.4T 28% /media/backup1
/dev/sda1 494M 316M 179M 64% /boot
/dev/sdd 1.8T 549G 1.3T 30% /media/backup
/dev/mapper/centos-home 1.9T 515G 1.4T 27% /home
tmpfs 771M 0 771M 0% /run/user/0
tmpfs 771M 0 771M 0% /run/user/1000

[root@home /]# du -sch *
0 bin
290M boot
8.0K dev
54M etc
515G home
0 lib
0 lib64
1.1T media
0 mnt
17M opt
du: cannot access ‘proc/17149/task/17149/fd/4’: No such file or directory
du: cannot access ‘proc/17149/task/17149/fdinfo/4’: No such file or directory
du: cannot access ‘proc/17149/fd/4’: No such file or directory
du: cannot access ‘proc/17149/fdinfo/4’: No such file or directory
0 proc
4.0K razor-agent.log
60M root
49M run
0 sbin
0 srv
0 sys
240K tmp
3.6G usr
39G var
1.6T total

schadfield
Posts: 11
Joined: 2014/12/21 01:03:40

Re: /root partition full

Postby schadfield » 2017/10/18 07:30:49

I expect most of the space is taken by applications in /usr. You could remove unwanted applications. If that does not provide you with enough free space then you are going to have to increase the size of your root partition.

pjsr2
Posts: 170
Joined: 2014/03/27 20:11:07

Re: /root partition full

Postby pjsr2 » 2017/10/18 08:11:49

39 GB in /var sounds a lot. What is in her. Big databases? Virtual machine images?
Drill deeper into /var to find out what is taking up the space there.
Try for example:

Code: Select all

sudo find /var -size 10M -exec ls -ld {} \;

to find all files larger than 10 MB.

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TrevorH
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Posts: 21007
Joined: 2009/09/24 10:40:56
Location: Brighton, UK

Re: /root partition full

Postby TrevorH » 2017/10/18 08:19:38

Run du -m -x --max-depth=1 /var and find the largest culprit there then repeat the command on /var/largestdir and keep repeating until you find the problem directory and then look at its contents.
CentOS 5 died in March 2017 - migrate NOW!
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wp.rauchholz
Posts: 35
Joined: 2016/11/20 11:58:45

Re: /root partition full

Postby wp.rauchholz » 2017/10/18 10:42:58

The biggest chunk is in /var/www/html/... A store pictures / movies for my galleries.
Let me see whether I can move to /home and still access from my webserver application (piwigo)
Thanks for the hint