Increase tmp partition size on CentOS
The following steps will help you to increase tmp partition. First you need to stop the Apache and MySQL services.
/etc/init.d/httpd stop /etc/init.d/mysql stop
Once the services are stopped please ake a backup of /tmp
cp -pr /tmp /tmp_bak
Then create a partition of 4GB using the following command
dd if=/dev/zero of=/usr/tmpDSK bs=2M count=2048
Then you can create a file system on it using the following command.
mke2fs -j /usr/tmpDSK
You need to unmount the current /tmp partition, once you created the file system.
Then mount the new /tmp filesystem using the below command
mount -t ext3 -o rw,loop /usr/tmpBSK /tmp
Set the correct permission for /tmp
chmod 1777 /tmp
Please run the following command to verify the partition:
Then you need to restore the content of old /tmp directory
cp -rp /tmp_bak/* /tmp
Start Apache and MySQL services.
/etc/init.d/httpd start /etc/init.d/mysql start
Edit the /etc/fstab and replace /tmp entry line with the following line to make sure the new partition is mounted automatically after every reboot.
/usr/tmpDSK /tmp ext3 rw,loop 0 0
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