sd card reader not working

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sunbird
Posts: 2
Joined: Tue Mar 15, 2016 10:37 pm

sd card reader not working

Post by sunbird »

I just tried to use the microsd card reader for the first time but it's not working. I put the card in and nothing happens, no entries in /var/log/syslog. But when I do

Code: Select all

# lspci | grep SD
00:14.7 SD Host controller: Advanced Micro Devices, Inc. [AMD] FCH SD Flash Controller (rev 01)
It shows that it is working.

Any ideas? I just had another machine booted from this sd card, so I do not believe it is the sd card.

Edit:

I checked the bios settings and the sd card reader and changed it to PIO from AUTO. I also inserted the card and rebooted the machine with it inserted. This solved the problem, but it would be good to know if there is a way to make it hot-swapable.

sunbird
Posts: 2
Joined: Tue Mar 15, 2016 10:37 pm

Re: sd card reader not working

Post by sunbird »

So it was not the bios settings. The only way I can get it to work is to boot with the card in the machine. Hot swapping is not possible. If I eject the card (after unmounting all fs), I get all kinds of craziness in the logfiles and /dev is not updated.

Solutions?

Arwen
Posts: 145
Joined: Sun Nov 20, 2011 10:43 pm

Re: sd card reader not working

Post by Arwen »

The SD card reader is not USB. It's a PCI(e) type device and Linux does not
yet understand hot swap automatically.

I've got the intructions here in the forums on how to hot swap SD cards, in
the Linux forums;

http://www.fit-pc.com/forum/viewtopic.php?f=144&t=5664

The process is a bit clumsy, but works perfectly and does not take much time.
Arwen Evenstar
Rivendale, Middle Earth

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