# SD card reader "automount"

**URL:** https://discourse.nixos.org/t/sd-card-reader-automount/30752
**Category:** Help
**Created:** [July 21, 2023, 12:48am UTC](https://discourse.nixos.org/t/sd-card-reader-automount/30752 "2023-07-21T00:48:02Z")
**Posts on this page:** 5
**Page:** 1

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### Author: ![Damage](https://discourse.nixos.org/letter_avatar_proxy/v4/letter/d/e95f7d/32.png) [@Damage](https://discourse.nixos.org/u/Damage)
#### Post date: [July 21, 2023, 12:48am UTC](https://discourse.nixos.org/t/sd-card-reader-automount/30752/1 "2023-07-21T00:48:03Z")

</div>

I have a Lexar LRw400 Sd card reader. In windows and all the Linux distros I’ve tried, slotting in an SD card performs automount just like a USB stick. But not in Nixos. My vagure memory suggestions that it might have worked under Nixos, but I’m not sure.

So the question is: Does it work just like a USB stick? - If so what is wrong???  
If it is a different “device”, what steps do I need to enable? I can see the “reader” exists, but not any card slotted in.

Thanks for any pointers - fixing this will save me hours finding an alternative!

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### Author: ![anon20203487](https://discourse.nixos.org/letter_avatar_proxy/v4/letter/a/7cd45c/32.png) [@anon20203487](https://discourse.nixos.org/u/anon20203487)
#### Post date: [July 21, 2023, 4:03am UTC](https://discourse.nixos.org/t/sd-card-reader-automount/30752/2 "2023-07-21T04:03:20Z")

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I have card adapters, and they work OK on KDE. One of them triggers the dmesg, the other does not.

What does your dmesg look like? What about lsusb?

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<div class="post-metadata">

### Author: ![Damage](https://discourse.nixos.org/letter_avatar_proxy/v4/letter/d/e95f7d/32.png) [@Damage](https://discourse.nixos.org/u/Damage)
#### Post date: [July 21, 2023, 5:59pm UTC](https://discourse.nixos.org/t/sd-card-reader-automount/30752/3 "2023-07-21T17:59:34Z")

</div>

My dmesg is as follows:

```auto
[344173.119107] usb 2-2.4.1: new SuperSpeed USB device number 4 using xhci_hcd
[344173.160694] usb 2-2.4.1: New USB device found, idVendor=05dc, idProduct=b054, bcdDevice=11.25
[344173.160699] usb 2-2.4.1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[344173.160701] usb 2-2.4.1: Product: LRW400
[344173.160702] usb 2-2.4.1: Manufacturer: Lexar
[344173.160703] usb 2-2.4.1: SerialNumber: 201404089427
[344173.167137] usb-storage 2-2.4.1:1.0: USB Mass Storage device detected
[344173.170245] scsi host10: usb-storage 2-2.4.1:1.0
[344174.233363] scsi 10:0:0:0: Direct-Access Lexar Pro LRW400 -0 1.00 PQ: 0 ANSI: 6
[344174.236418] sd 10:0:0:0: [sdc] Media removed, stopped polling
[344174.236690] sd 10:0:0:0: [sdc] Attached SCSI removable disk
[344174.254542] scsi 10:0:0:1: Direct-Access Lexar Pro LRW400 -1 1.00 PQ: 0 ANSI: 6
[344174.259645] sd 10:0:0:1: [sdd] Media removed, stopped polling
[344174.259907] sd 10:0:0:1: [sdd] Attached SCSI removable disk

```

The above is the same when I plug in the reader either with or without an sd card inserted into the reader.

lsusb:

```auto
Bus 002 Device 004: ID 05dc:b054 Lexar Media, Inc. Dual-Slot Reader [LRW400U]

```

The reader light flashes as if accessing the sd card, then remains lit. I set automount removeable media that has never been mounted before in KDE - no difference.

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<div class="post-metadata">

### Author: ![hansemschnokeloch](https://discourse.nixos.org/user_avatar/discourse.nixos.org/hansemschnokeloch/32/7668_2.png) [@hansemschnokeloch](https://discourse.nixos.org/u/hansemschnokeloch)
#### Post date: [July 21, 2023, 6:36pm UTC](https://discourse.nixos.org/t/sd-card-reader-automount/30752/4 "2023-07-21T18:36:45Z")

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Hi,

I’ve a lexar LRW300U reader that works without issue on Gnome.

My lsusb and dmesg results in case it can help you.

lsusb

```auto
Bus 002 Device 002: ID 05dc:b049 Lexar Media, Inc. USB_3_0 Reader

```

dmesg

```auto
[1.365532] usb 2-1: New USB device found, idVendor=05dc, idProduct=b049, bcdDevice= 0.01
[1.365543] usb 2-1: New USB device strings: Mfr=3, Product=4, SerialNumber=5
[1.365547] usb 2-1: Product: USB_3_0 Reader 
[1.365551] usb 2-1: Manufacturer: Lexar 
[1.365554] usb 2-1: SerialNumber: 000000038154

```

and

```auto
[3.627996] scsi 2:0:0:0: Direct-Access Lexar CF USB_3_0 Read LX01 PQ: 0 ANSI: 5
[3.628627] scsi 2:0:0:1: Direct-Access Lexar SD USB_3_0 Read LX01 PQ: 0 ANSI: 5

```

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<div class="post-metadata">

### Author: ![Damage](https://discourse.nixos.org/letter_avatar_proxy/v4/letter/d/e95f7d/32.png) [@Damage](https://discourse.nixos.org/u/Damage)
#### Post date: [July 21, 2023, 7:03pm UTC](https://discourse.nixos.org/t/sd-card-reader-automount/30752/5 "2023-07-21T19:03:14Z")

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I’m having a bad week!

The SD card failed - it was working, and then I update my Nixos and it didn’t. I thought I’d checked with another card, but obviously didn’t.

Thanks too those who replied.
