[App_rpt-users] Pickle linux, Beagleboard, and MicroSD flash longevity

Jim Duuuude telesistant at hotmail.com
Sun Mar 20 13:53:05 EDT 2011


I think that you will find that the pickle distro already does that. It has the typically
'volatile' files in a ram disk (like /var/log , /var/run, etc) for exactly that reason.

JIM WB6NIL

> Date: Sun, 20 Mar 2011 10:27:56 -0700
> From: phil.n6tct at gmail.com
> To: app_rpt-users at ohnosec.org
> Subject: [App_rpt-users] Pickle linux, Beagleboard,	and MicroSD flash longevity
> 
> I am building a remote, solar-powered, mountaintop repeater based
> around the BeagleBoard and app_rpt running the Pickle distribution.
> The mountaintop is not vehicle accessible and is a significant hike to
> get to -- oh, and it's an eight-hour drive from where I live just to
> get to the base of the mountain -- so we'd like to minimize equipment
> failures and resulting truck rolls. :-)  Two questions for the group:
> 
> 1. Does anyone have any experience with the longevity of the MicroSD
> flash memory card used on the Beagleboard with Pickle Linux?   Flash
> memory has a limited number of write cycles and, although the flash
> cards include some wear leveling, I'm wondering what the implications
> are for flash card replacement.  Obviously, this will depend on how
> much writing is being done, but any real-world data, experience, or
> anecdotes would be welcome.
> 
> 2. Is there an easy way to set up a ram disk, even a small ram disk (a
> few megabytes), under Pickle?  The majority of writing we're going to
> be doing will be log files, and we have a network connection from the
> mountaintop to civilization -- but the network connection is not
> guaranteed to be up all the time.  If we could write to ram disk and
> then copy to civilization when the network is up, that would avoid
> having to write to flash at all.
> 
> Thanks!
> 
> Phil, N6TCT
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