this post was submitted on 24 Dec 2023
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Asklemmy
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I would use the second one as a backup.
You could use one of these USB SDcard reader and script something that backups the content of the running/live SDcard to the second one on the USB stick. With dd or something you could have an always ready backup SDcard of the RasPi system.
That or using an old Android phone as a media center and putting the second SDcard in that.
Or using an old Android phone as a surveillance camera but that would be a bit overkill to have 256Gb.
Also if you have an early model of the Switch you could hack it to run pi... homebrews and in that case having a super large SDcard could be good.
Since they already have an extra card, why not. But buying one for the purpose might not be a good idea, see for example https://superuser.com/questions/1254904/using-an-sd-card-for-backup#1254907