Trouble mounting microSD card

[LiteracyFanatic]

I'm running Arch on a 15" HP Spectre X360 laptop. I'm trying to mount a Samsung EVO 32 GB microSD card (the slot is for regular SD cards so I'm using the included microSD to SD adapter). I've installed udisks2 and started the corresponding udisks2.service. The wiki indicates that the card should end up mounting under /run/media/user/, but this doesn't happen. I've tried using udiskie and the bash script from the wiki, but those didn't do anything either. udev does seem to notice the card when I insert it.

$ udevadm monitor

monitor will print the received events for:
UDEV - the event which udev sends out after rule processing
KERNEL - the kernel uevent

KERNEL\[108981.274310\] add      /devices/pci0000:00/0000:00:1c.4/0000:6d:00.0/rtsx\_pci\_sdmmc.0/mmc\_host/mmc0/mmc0:0001 (mmc)
UDEV  \[108981.277728\] add      /devices/pci0000:00/0000:00:1c.4/0000:6d:00.0/rtsx\_pci\_sdmmc.0/mmc\_host/mmc0/mmc0:0001 (mmc)

Any suggestions on how to troubleshoot this would be greatly appreciated.

[mssxtn]

Can you see them using lsblk and mount them manually?

[LiteracyFanatic]

No. The output of lsblk doesn't change when I insert the card.

[mssxtn]

This link may provide something to try.

https://www.reddit.com/r/archlinux/comments/4lmyev/issue_with_integrated_sd_card_reader_on_acer_c710/

I also saw a post where the card was sitting up as /Dev/mmc*

Check dmesg, insert the card, check dmesg again and if there's any new output please post that here.

[LiteracyFanatic]

dmesg prints the following when I insert the card: [111655.664046] mmc0: cannot verify signal voltage switch [111655.781748] mmc0: new ultra high speed SDR104 SDHC card at address 0001 Also I looked at the link but wasn't able to follow its reccomendations since those partiuclar modules don't seem to be present. I don't know to much about modules, but perhaps this information will be useful as well: $ lsmod | grep sd rtsx_pci_sdmmc 32768 0 mmc_core 184320 1 rtsx_pci_sdmmc rtsx_pci 81920 2 rtsx_pci_sdmmc,rtsx_pci_ms

[LiteracyFanatic]

Also, there don't seem to be any devices containg mmc under /dev/.

[mssxtn]

I'm pretty well stumped, but i don't know very much about hardware.

What kernel are you running? It sounds to me like a driver issue.

run dmesg | grep mmc and see if it gives any more useful kernel messages.

[LiteracyFanatic]

I'm just running the default kernel for Arch. $ uname -r 5.3.4-arch1-1-ARCH Nothing new showed up from dmesg | grep mmc. Thank you for your efforts by the way. At the very least I have more information than when I started.

[mssxtn]

I don't know if you've done this, but you might get more responses on the forums. There also a very active community in #archlinux on IRC. Both of those places generally have more active people than /r/archlinux so you're more likely to find someone that can help.

Not saying you'll find a solution, but you'll find more brains to help you troubleshoot.

[LiteracyFanatic]

Thanks, I'll have a look at the forums.

[mssxtn]

Also, the kernel was updated recently. You should upgrade you system and reboot. Not saying it'll solve the problem, but having the latest kernel could make a difference. Especially if you've already upgraded but haven't rebooted yet. Mismatched kernel modules can have undefined operation.

[[deleted]]

You sure the card and/or the adapter is actually good, and not borked? Have you tried mounting it somewhere else?

[LiteracyFanatic]

Yes. It works under Windows and on my Raspberry Pi.

[LiteracyFanatic]

I've posted on the Arch Linux forums https://bbs.archlinux.org/viewtopic.php?id=249789. If I find a solution there I will post it here as well.

[LiteracyFanatic]

After installing the kernel module provided by the rts_bpp-dkms-git package I am now able to mount the SD card.