[talk] SD cards for Pi?

[Ariel Sanchez Mora]

I remember having read a lot and finally settling on this one (after
noticing the first one I tried was very slow)

Samsung 32GB EVO Plus Class 10 Micro SDHC with Adapter 80mb/s
(MB-MC32DA/AM)
https://www.amazon.com/dp/B00WR4IJBE/ref=cm_sw_r_cp_apa_5mjeAbHJE0HR9

See if you can find it :)

On Nov 18, 2017 2:53 PM, "Charles Sprickman" <spork at bway.net> wrote:

> Yay!
>
> On Nov 17, 2017, at 6:07 PM, Isaac (.ike) Levy <ike at blackskyresearch.net>
> wrote:
>
> Word,
>
> On Fri, Nov 17, 2017, at 05:51 PM, Charles Sprickman wrote:
>
> Hi all,
>
> I know there are a ton of ARM fans here running various Pi clones and
> such…  I had a model B sitting around and I decided that I’d move my znc
> proxy and ssh/tmux jumphost off of my big media server and onto the Pi.
> I have a UPS, and like to let the big server shutdown 10 minutes into a
> power outage, and then just let the rest of the stuff run until the
> battery is near death.  So the Pi looked like a nice option that would
> take very little power.  I installed FreeBSD 11.1/ARM on there and
> installed a few packages, all was well for about 8 months.
>
> Last night, the Pi disappeared.  Today I looked at it and on checking the
> SD card, it seemed dead. Laptop recognized it, but no partition table and
> any attempt to dd things from or to it failed with an IO error.
>
> So two questions:
>
> - At a local Walgreens or Staples, what’s a decent SD card?  I know
> nothing of these things.
>
>
> SanDisk are my common go-to, as fast as you want to pay for.
>
> They all die, but still sometimes have probs with bootloader on no-brand
> stuff.
> (Yes, in 2017, still problems here with cheap media.)
>
>
> WalMart, $12 16GB SanDisk “class 10”.  Old one was “Maxell” micro SD in
> an adapter.  Maxell have apparently gone from cassette tapes to flash
> storage
> I guess, I do not recall this happening when I inserted it into the Pi:
> https://www.youtube.com/watch?v=IBem3x7G6bc
>
>
> - Is there any tweaking I should have done to FreeBSD to make it not
> write excessively to the card (I did not have swap enabled)?
>
>
> /etc/defaults/rc.conf has a few goodies that recently surprised me, easy
> easy memdisk for tmp and var.
> Also, disable swap.
>
> --
> tmpmfs="AUTO"           # Set to YES to always create an mfs /tmp, NO to
> never
> tmpsize="20m"           # Size of mfs /tmp if created
> tmpmfs_flags="-S"       # Extra mdmfs options for the mfs /tmp
> varmfs="AUTO"           # Set to YES to always create an mfs /var, NO to
> never
> varsize="32m"           # Size of mfs /var if created
> varmfs_flags="-S"       # Extra mount options for the mfs /var
> mfs_type="auto"         # "md", "tmpfs", "auto" to prefer tmpfs with md
> as fallback
> populate_var="AUTO"     # Set to YES to always (re)populate /var, NO to
> never
>
>
> This worked but for “varmfs” - in 11.1, that seems to be either “YES” or
> “NO” - no “AUTO” option.
>
> Next big thing: your application.  Write to a mem disk if it writes
> often.
>
>
> ZNC and tmux, that’s it.
>
> Thanks so much, that was extremely helpful.
>
> Charles
>
> Oh - and if you’re ever eating/drinking at NJ NYI, I’m about 20 minutes
> north of there.
>
>
>
> Thanks,
>
> Charles
>
> PS - Ike, I dropped the OS-X thread not out of frustration, but more like
> it’s too long of a convo to have via email.
>
>
> Ha! Indeed.  Next time with drink in hand.
>
> Best,
> .ike
>
>
> I’ll say this though -
> anyone still using OS-X, take a look at iTerm and the tmux integration
> feature, it’s awesome.
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