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I never had an issue with my card reader and I use Fedora. Did you have a card in the reader? Since Linux doesn't have "drives" like in Windows, it may look like there's nothing there until you plug one in
One word of caution: it is really important that you eject (unmount) the card if you write to it. Linux is more aggressive about buffering writes so you will lose data if you don't.
Yes, i had a card in the reader. My laptop will show that the UsB reader is inserted but it dosent show the card nor the reader in my files folder.
Ok. Can you tell me more about what you are using? Are you on KDE and using Dolphin for the file manager? If Dolphin, do you see anything at all under removable devices? What file system is the card formatted as?
Can you also try running:
sudo journalctl --followin a terminal, plug in the reader, and check if you see something like "kernel: sd 12:0:0:1: [sdc] Attached SCSI removable disk".Okay, so I ran this command and I don’t see anything of that nature relating to the SD reader. I was also writing the commands from Tal’s comment and it’s not picking up the SD card reader at all, nor of what’s in it. It just reads the +sda, zram0 and nvme0n1
Gonna make an edit real quick: so the system is picking up the disk I see it labeled as [sda] Attached SCSI removable disk but the microSD card is not being read into the disk nor is it showing on the Dolphin file manager that it’s there.
ok, so I think if it sees the device being plugged in, then it probably sees the card reader. You could try running
lsusbto see all your USB devices, andlsblk -o NAME,FSTYPE,MOUNTPOINTSto see your block devices (disks), and see if it appears there also.It still may not be able to actually read the file system even though it sees it as a disk. One reason for that could be it's not supported by your kernel. Do you know what file system the card is formatted with? If it appears in the lsblk output, it will say in the second column.
Edit: when I tested this with my own card reader, I see this output:
Each device (sda, sdb, sdc) is a physical disk. sda is my SSD. sdb, sdc, sdd, and sde are all "drives" from the multi-reader. Each type of card shows as its own, basically.
Now if I plug a card in, I get a little icon in the system tray (disk and devices) where I can mount and open it. And this has appeared in my
lsblkoutput:That is a 64GB SD card formatted with exfat.
Okay, so I'm copying what your posting and this is what I get: this is what it looks like without the SD card reader. (Also, sorry for the late responses, I haven't been on my laptop lately)
Now this is what it looks like with the card reader inside: I also have one of my flashdrives in and I see my flashdrive identified but i dont think i see the SD card reader, I am not sure.
That looks promising actually. Are you able to read the contents of the path that starts with
/run/media? If you lost the contents do you set your files? If so, then Linux sees it and it auto mounts, but Dolphin isn't recognizing it.the /run/media is identifying my USBC flashdrive (this is not the SD card reader,btw) Dolphin recognizes it and puts it under "Removable devices" section and I can access my folders. Now, this is me taking out the USBC flashdrive but i still have my SD card reader in: its like Dolphin dosent recongize the SD card reader
I see. My bad, I was reading it on my phone. If you don't have the flashdrive connected, and you only have an nvme drive in your laptop, then the sdb and sdc devices would be from your card reader. I am thinking sdc is the card reader since it shows 30.6M size. However that would be a very small card in 2026. It's a little surprising to me it's not even showing partitions for sdb or sdc in lsblk output.
Is the card pre-formatted (or did you format it)? Is it readable on another device?
Edit: I forgot to mention: if your card is formatted as exfat, you may need to load the exfat module:
If you have it, you should see exfat in the output from the second command. More information here
No it’s not formatted. It came as is when I bought it and I have not done anything to it besides putting my microsd cards in it. And you are right, that disk under sdc is the SD card reader.
Crazy thing, this SD card reader was reading fine when I was using Pop Os (even though cosmic was hella buggy). Idk… I kinda find this freaking ridiculous that it cant read it when this is the default file manager.
but let me see if it’s labeled as exfat…
Ok, so I took an old sacrificial microSD card (4GB lol) and put it in a janky old USB reader I have, connected it to my Fedora PC.
I can reproduce what you are seeing if I delete the partitions off the card. Now, when I insert the reader, it blinks but nothing prompts me to format it or do anything with it. It does not appear in Dolphin in any way. Not an ideal user experience.
To do anything with it, I have to open KDE Partition Manager, find the device, and create a new partition on it. As soon as I do that, what you would normally expect to happen, happens: a popup announced it is available and gives me the option to mount it, and it shows up under removable devices in Dolphin.
That if anything sounds more like a bug on Dolphin's part. I'm not gonna do that just to get it to read the micro sd card.
Honesly, im getting annoyed with dealing with these stupid, very tedious bugs, and the crazy amount of updates that have been going on within Fedora lately are not helping.
Understandable. However, I don't think it's necessarily unique to KDE (and thus Dolphin). The Gnome Files application does not seem to see it, either, if I leave it unformatted. Most cards I have bought came preformatted, so this may be less common of a problem for the typical user, though.
As for updates, Fedora is technically a rolling release distro, so frequent updates are expected. With Fedora 45 just having been released, there has been a slightly higher rate of releases.
I've had some issues with Fedora myself, and I found really good help after posting on the Fedora Discussion boards if you would like to try there.
I really appreciate your help, i really do. Im gonna see if downloading Fedora 45 helps, along with going through the community forum.
Happy to help! Best of luck to you in the forums. I was amazed how helpful certain people on the forums are. I had gotten myself into a real mess with conflicting packages and they walked me through the entire repair process. I don't think I could have paid for that level of service. YMMV as always.
Yes, Im on KDE and i use Dolphin. Nothing shows under removal devices when i look on the folder screen. When i get the some free time, im gonna run the commands that some of yall gave me to see where the issue is.
I have definitly corrupted data doing that. I wonder if filesystem matters at all. I usually use f2fs for flash drives.
I suppose some filesystems might be slightly faster to write to thus reducing the time it takes for the data to actually end up on the physical device, but while some filesystems are better equipped to gracefully handle the consequences of an interruption, none of them can fix data that doesn't exist because the drive was physically removed whilst being written to.
Always sync before ejecting a removable drive.
The biggest UX issue, in KDE in particular (though they made some improvements recently), is that a copy process will say it's complete (with a notification), but you could be waiting several seconds or minutes before it's actually done syncing
The sync command will block until it's done so you will know for sure. I believe ejecting the drive will sync before it reports success also.
In my experience, simply waiting for the activity light to stop flashing is a good enough indication, but not all drives have one.
Yeah, my flash drives are all USBC flashdrives (im glad those are reading as least on my laptop) I mount and eject those every time while using them cause i am a little worry about that happenimg since it dosent come with that light indicator.
This problemis finally fixed on KDE.
Thanks for confirming. Here is a blog technical post about it