[Clfs-dev] /dev/shm and /run/shm

[Martin Ward]

On 16/12/13 21:03, William Harrington wrote:
>
> On Dec 16, 2013, at 2:47 PM, William Harrington wrote:
>
>> How do we deal with /dev/shm and /run/shm with our current 
>> bootscripts. LFS for the longest time has linked /run/shm to /dev/shm.
>
> I ask because I'm building for raspberry pi and CLFS with our 
> bootscripts using the PiLFS as a guide.
>
> CLFS and LFS bootscripts have differences.
>
> I ran across this discrepency when building wayland for it.
>
> /run/shm is a link /to /dev/shm
>
> createfiles with LFS bootscripts is to create /run/shm/wayland.
>
> With out bootscripts, /run/shm doesn't even exist so /run/shm/wayland 
> can't exist.
>
> I have to do this with our bootscript in /etc/rc.d/iinit.d/mountkernfs 
> after mkdir -p /dev/{pts,shm}:
>
> ln -s /dev/shm /run/shm
> mkdir /run/shm/wayland
>
> I am aware of differences when using LFS and CLFS boot scripts and I 
> can fix this normally, but I'm writing up instructions for a CLFS 
> build with the Raspberry Pi using CLFS and wayland and well, our 
> bootscripts need some attention.
>
> Sincerely,
>
> William Harrington
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>
They are both tmpfs file systems i.e ram with a file system overlayed on 
them,  I suspect it's down to individual distro taste whether they are 
separate or not. Systemd goes with the latter , i.e a separate 
filesystem to /run.


martin