nyindieguy wrote: 
> Thanks for all this information. My setup is that my music is stored on
> an external NAS, so that's not an issue. I believe I have the cache and
> settings on the SD card. When I've had the blackouts, it seems as it is
> the cache that gets corrupted.
> 
> I'm curious about the process of using the built-in SD card backup. Can
> someone give me a step by step? I assume one first has to turn off LMS.
> Then can I just pop out the internal card and put in a fresh one to do
> the backup? Does it backup all the settings, plugins, etc?
> 
> Thanks again to all.
> --Ira

One thing to check, with my situation (pi with USB HDD, cache on HDD)
what would happen is the "mount" would get
corrupted/disconnected/something. The Pi no longer "saw" the drive (so,
in my case (cache on HDD) LMS could not find the cache). I would then go
into the pcp UI, and the drive "looked" like it was mounted. So, I would
uncheck-apply-check-apply, and all would be well. One way I could tell
it was not mounted is by using samba and a network location on a PC, try
to access that location would fail.

There has been some discussion on drive spin up time, especially with
older USB HDD. The thought being that the drive is not ready when pcp
tries to re-establish the mount. Perhaps with your NAS, if it's being
power restored at the same time as your pi (not a usual occurrence, only
after cut, right?), and it is not "ready" when the pcp tries to
reestablish the mount. There is a setting in pcp to extend the time,
"wait USB" pcp UI->main page->(beta functions) extras->bootcodes
(tab)->wait usb - increase this value.

Also, to add to Gary's comment on SD, Even if it's not required, you
probably want to stop LMS from reading/writing cache/prefs, especially
if you do a "whole disk" backup, which is what I prefer. That way, you
can just write the whole card from the image you backed up.

Jim


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