[Discuss] Read-Only Micro SD Card

Kent Borg kentborg at borg.org
Mon Feb 20 18:16:30 EST 2023


My Samsung tablet complained there there was a problem with the SD card, 
and it had been switched to read-only.

"No problem.", I thought, "I'll put it in my Linux machine, run fsck on 
it, and get it up and running in no time!"

Nope, after a few hours of being frustrated that Linux's ability to do 
exfat is apparently incomplete (grr) I keep futzing…

I finally realized that it was not a case of the file system having 
problems, it is a case of the SD card itself concluding that it is not 
healthy and setting a one-time read-only bit. Linux can't change that 
bit because the firmware on the SD card refuses.


Okay…time to back up and then restore to another SD card.


We'll see,

-kb



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