[CentOS] Deleting contents of /tmp on shutdown

[Ross Walker]

On Dec 14, 2009, at 7:14 AM, "Thomas Dukes" <tdukes at sc.rr.com> wrote:

>
>
>> -----Original Message-----
>> From: centos-bounces at centos.org
>> [mailto:centos-bounces at centos.org] On Behalf Of Eero Volotinen
>> Sent: Monday, December 14, 2009 3:27 AM
>> To: CentOS mailing list; Sorin Srbu
>> Cc: 'CentOS mailing list'
>> Subject: Re: [CentOS] Deleting contents of /tmp on shutdown
>>
>> Quoting Sorin Srbu <sorin.srbu at orgfarm.uu.se>:
>>
>>>> -----Original Message-----
>>>> From: centos-bounces at centos.org
>> [mailto:centos-bounces at centos.org] On
>>> Behalf
>>>> Of Geerd-Dietger Hoffmann
>>>> Sent: Saturday, December 12, 2009 11:22 PM
>>>> To: CentOS mailing list
>>>> Subject: Re: [CentOS] Deleting contents of /tmp on shutdown
>>>>
>>>> On Sat, Dec 12, 2009 at 10:05 PM, Thomas Dukes
>> <tdukes at sc.rr.com> wrote:
>>>>
>>>> I have the /tmp in memory, which effectively deletes everything on
>>>> reboot. Maybe another solution?
>>>
>>> How do you achieve that?
>>> --
>>> /Sorin
>>>
>>
>> using tmpfs?
>>
>> http://kevin.vanzonneveld.net/techblog/article/create_turbocha
>> rged_storage_using_tmpfs/
>>
>
> One thing that's not clear in the two links that have been posted  
> about
> doing this is, do you add the line or replace the the line already  
> present
> in /etc/fstab?
>
> /dev/VolGroup00/LogVol00 /                       ext3     
> defaults        1 1
> LABEL=/boot             /boot                   ext3     
> defaults        1 2
> none                    /dev/pts                devpts   
> gid=5,mode=620  0 0
> none                    /dev/shm                tmpfs    
> defaults        0 0
> <----------
> none                    /proc                   proc     
> defaults        0 0
> none                    /sys                    sysfs    
> defaults        0 0
> /dev/VolGroup00/LogVol01 swap                    swap     
> defaults        0 0

Here is what I put in my fstab:

tmpfs /tmp tmpfs defaults 0 0

And your done. By default it will use 1/2 of your memory and under  
pressure it's first to swap and even if you run off swap it gives  
comparable performance to the way it is now.

-Ross