On 26/02/15 at 07:31pm, Jens Adam wrote:
Wed, 25 Feb 2015 11:36:59 +0100 Csányi Pál <csanyipal@gmail.com>:
mmcblk0: error -84 transferring data, sector 7, nr 1, cmd response 0x900, card status 0x0 Buffer I/O error on dev mmcblk0, logical block 0, async page read
This clearly indicates a hardware/kernel problem, so I don't know why people are suggesting to paste random config snippets that won't solve anything.
Simple googling will produce dozens of similar problems, most without solution.
My guess: Your card reader (which one? lspci/lsusb/dmesg? laptop type and age?) or its firmware is simply too old to recognize the card. See https://en.wikipedia.org/wiki/Secure_Digital#Compatibility
--byte
Because I had exactly the same issue with different kernels, one kernel will read my micro sd card and others wont. The solution which I posted has helped me long time ago, that is why I shared it. What is the purpose of this mailing list if we can't help each other ?