How to increase  the space of /tmp of unix

Purpose : Some times /tmp of unix will be full and it stops installation and working of some application

This will help you to increase the space of it

Steps :

1.unmount the current /tmp

2.Create new virtual drive

3.Mount it

Detailed Steps :

1. Check the current Status and mount point

[oracle@myserver ~]$ df -h

Filesystem            Size  Used Avail Use% Mounted on

/dev/xvda2            9.4G  3.1G  6.3G  33% /

/dev/xvda1             99M   13M   82M  13% /boot

tmpfs                 1.0G     0  1.0G   0% /dev/shm

/dev/xvdb              49G   33G   13G  72% /data

Here /tmp is tmpfs

2. unmount it

[root@myserver ~]# umount tmpfs

3. create new virtual drive of 2 GB

[root@myserver ~]#  dd if=/dev/zero of=/data/tmpDSK bs=1024k count=2048

2048+0 records in

2048+0 records out

2147483648 bytes (2.1 GB) copied, 23.1019 seconds, 93.0 MB/s

4.Format new drive

[root@myserver ~]#  mkfs -t ext3  /data/tmpDSK

mke2fs 1.39 (29-May-2006)

/data/tmpDSK is not a block special device.

Proceed anyway? (y,n) y

Filesystem label=

OS type: Linux

Block size=4096 (log=2)

Fragment size=4096 (log=2)

262144 inodes, 524288 blocks

26214 blocks (5.00%) reserved for the super user

First data block=0

Maximum filesystem blocks=536870912

16 block groups

32768 blocks per group, 32768 fragments per group

16384 inodes per group

Superblock backups stored on blocks:

          32768, 98304, 163840, 229376, 294912

Writing inode tables: done                           

Creating journal (16384 blocks): done

Writing superblocks and filesystem accounting information: done

This filesystem will be automatically checked every 37 mounts or

180 days, whichever comes first.  Use tune2fs -c or -i to override.

5. Verify the drive

[root@myserver ~]# file /data/tmpDSK

/data/tmpDSK: Linux rev 1.0 ext3 filesystem data (large files)

6. Mount it

[root@myserver ~]# mount -o loop,noexec,nosuid,rw /data/tmpDSK /tmp

7.Provide the permission

[root@myserver ~]# chmod 1777 /tmp