[Clfs-dev] /var/run

sjs205 sjs205.linux at gmail.com
Fri May 13 11:03:05 PDT 2011


Final update... I have updated the book patch to include mounting the 
/var/lock directory as a tmpfs filesystem... The two patches are as follows:

Book patch - http://pastebin.cross-lfs.org/230504
bootscripts-cross-lfs-1.1.0 http://pastebin.cross-lfs.org/230503


On 05/13/2011 05:09 PM, sjs205 wrote:
> Ok, have looked into this a little further and have a working tmpfs 
> /var/run fs.
>
> What I did:
> * Added a line to /etc/fstab:
>     varrun /var/run tmpfs defaults 0 0
>     This was enough to get the basic tmpfs dir.
> * Then edited the /etc/rc.d/init.d/cleanfs script and added a section 
> just before all files get removed from /var/run as follows:
>                 if [ ! -f ./utmp ]
>                 then
>                         touch ./utmp
>                 fi
>
>
> I have created a patch for this. Obviously this patch implies a few 
> amendments to the book - added line in fstab and no need to 'touch' 
> umtp - so I have created a patch for this too.
>
> If anybody thinks I have gone about this the wrong way then please do 
> let me know, or just feel free to pass comments.
>
>
> sjs205
>
> Book patch - http://pastebin.cross-lfs.org/230502
> bootscripts-cross-lfs-1.1.0 http://pastebin.cross-lfs.org/230503
>
>> Hello All,
>>
>> Every couple of days I manage to inadvertently cut the power to my
>> CLFS x86 server. Since I only really SSH to this box this presents a
>> problem since the SSH pid file doesn't get removed on power failure so
>> I have to connect up a screen, delete /var/run/sshd.pid then restart 
>> ssh.
>>
>> This is caused by the static setup of the /var/run dir so I have
>> decided to address this.
>>
>> My plan:
>> * Create a start-up script in /etc/rc.d/init.d that will remove all
>> files from the /var/run directory, then mount a tmpfs using /var/run
>> as the mount point.
>>
>> With this in mind, before I start, just a few questions related to this:
>> * Should this be a separate script in init.d or should I add it to an
>> existing one? I am thinking that a script is required for the removing
>> old PID files, but the mounting of the tmpfs could be carried out by
>> S30mountfs - by adding a mount point to /etc/fstab - in the
>> /etc/rc.d/rcsysinit.d/ directory.
>> * Can anybody recommend a size for the tmpfs. Running 'du -ah' on the
>> /var/run dir, the contents are only 96 k, but then the same command on
>> my Fedora box shows the dir to be 1.8 MB in size.
>>
>> Does everyone agree that this is a necessary course of action? Any
>> comments or recommendations welcome - I am generally on the CLFS IRC
>> so come chat there or just return email.
>>
>> sjs205
>>
>>
>




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