SD Card reader blocked by linux

[an_user]

Hello everyone,

it seems that i have a kind of known problem (according to the amount of similar posts in different forums) with my SD card reader and kubuntu linux
More precicely:
I tried two card readers with different sd micro cards.
One ist built in in my monitor (the one with size 29.81 GiB), the other one is an USB card reader (14.46 GiB).

Both SD cards are not accessible in KDE with no obvious clue why.
Trying the following command

sudo fdisk -l

reveals that they are identified correctly by the system

trying to access /dev/sdc or /dev/sdd via console is with no success (>> /dev/sdd is no folder)
The file-manager xfe shows the problem:

The two sd cards readers are blocked by the system.

Is there a solution to unblock the card readers?

Best regards

 

[Brickwizard]

have you tried remove all flash cards open a terminal and run sudo apt-get install exfat-fuse exfat-utils

re-install flash cards, and open files you should hopefully see the flash cards in the left-hand bar

 

[dos2unix]

What is the output of

df -h

Are they mounted and you dont have permission, or are they not even mounted?

 

[an_user]

What is the output of

df -h

Are they mounted and you dont have permission, or are they not even mounted?

... not even mounted...

but at least the SD usb card reader triggers the same same sound event like an usb stick which will be mounted properly.
And removing the SD usb card reader triggers also a sound event like removing a correctly mounted usb stick.

The other build in card reader (monitor) does not create a sound event

Therefore i guess it's an issue with blocking

 

[an_user]

have you tried remove all flash cards open a terminal and run sudo apt-get install exfat-fuse exfat-utils

re-install flash cards, and open files you should hopefully see the flash cards in the left-hand bar

... no effect ...

 

[an_user]

... not even mounted...

View attachment 28064

but at least the SD usb card reader triggers the same same sound event like an usb stick which will be mounted properly.
And removing the SD usb card reader triggers also a sound event like removing a correctly mounted usb stick.

The other build in card reader (monitor) does not create a sound event

Therefore i guess it's an issue with blocking

The usb card reader is correctly identified (using lsusb)

The USB Card reader is the Silicon Motion device
I guess the other (built in) card reader is the one from Microchip Technology
(yes, the built in card reader is also an USB reader, but built inside the monitor)

 

[an_user]

Here's an Update:

i tried in the built in card reader (Microchip) a big SDHC Card (SanDisk 16GB) and it worked.
But three different SD micro cards (two of them 16GB and one 32GB) do not work in combination with the two card readers (the Silicon Motion card reader is only for SD micro so i can't test the big one with it). I tried the whole combination...

The SD micro cards are:

Samsung Evo+ 32GB
SanDisk Ultra 16 GB
Verbatim Premium 16Gb

So it seems that it is a driver problem and Linux is not meant to work with SD micro cards.
Such a pity.

I intented to install PI OS to run my new Raspberry Pi 5
Now i have to reactivate Windows to install Linux on my Raspberry

 

[Brickwizard]

So it seems that it is a driver problem and Linux is not meant to work with SD micro cards.
Such a pity.

i use a USB Multi card reader with micro adaptor which works fine [im using Mint LMDE & parrot home]

oh and internal card reades are on the USB bus, so should show on [from terminal] lsusb

 

[MikeWalsh]

I have a couple of Puppies installed as "frugals" on SD cards. Admittedly, these ARE full-size SDHC cards - one's a SanDisk, one's a cheapo Integral - but they boot on my 2019 HP Pavilion desktop without issue.

The only "niggle" is that you do have to insert/re-insert 'em a couple or three times before they show up, but that's a minor issue.....probably dust or dirt I haven't been able to dislodge from inside the card reader.

Generally speaking, though, SD card support is pretty good under Linux. The only place I ever bother with microSDs is in my phone.....and there, you can't use anything else. (shrug)

For microSDs, I have a tiny Integral USB card-reader I bought several years ago from Maplins here in the UK.....and Maplins have been gone for 6 or 7 years now. This thing has always been dead reliable.....and 'Puppy' has no issues with reading from it.

This one:-

Mike.

 

[ML_113]

So it seems that it is a driver problem and Linux is not meant to work with SD micro cards.
Such a pity

I use MX which manages devices using udev.
Never ever had a single problem.

 

[theLegionWithin]

dont remember how long ago I got this but I've had this device for a number of years and have never had any issues with or with any sd card using it --> https://www.amazon.com/Aluratek-AUCR300F-MultiMedia-Card-Reader/dp/B00IGJPDHC - there's undoubtedly better models available but this just works.