SD card not read/won't mount

Question

I have a Kingston MicroSD card w/adapter that I pop into a USB card reader (which reads several other SD cards with no prob), and it just won't work on my Arch box. Here's the output when it's plugged in:
└─> dmesg | tail
sd 8:0:0:0: [sde] Assuming drive cache: write through
sd 8:0:0:0: [sde] Attached SCSI removable disk
scsi 8:0:0:2: Direct-Access Generic USB SM Reader 1.02 PQ: 0 ANSI: 0
sd 8:0:0:2: Attached scsi generic sg8 type 0
scsi 8:0:0:3: Direct-Access Generic USB MS Reader 1.03 PQ: 0 ANSI: 0
sd 8:0:0:3: Attached scsi generic sg9 type 0
sd 8:0:0:1: [sdf] Attached SCSI removable disk
sd 8:0:0:3: [sdh] Attached SCSI removable disk
sd 8:0:0:2: [sdg] Attached SCSI removable disk
usb-storage: device scan complete
It's not listed in fdisk -l, just my sda through sdd drives as usual. I looked in /dev and found (from the dmesg output) the sde through sdh, and I tried mounting each one to /media/test, and I got this:
└─> sudo mount /dev/sde /media/test/
mount: /dev/sde is not a valid block device
┌─[ 01/21/10 10:13:55 PM ][ ~ ]
└─> sudo mount /dev/sdf /media/test/
mount: /dev/sdf: unknown device
┌─[ 01/21/10 10:13:55 PM ][ ~ ]
└─> sudo mount /dev/sdg /media/test/
mount: /dev/sdg: unknown device
┌─[ 01/21/10 10:13:55 PM ][ ~ ]
└─> sudo mount /dev/sdh /media/test/
mount: /dev/sdh: unknown device
I'm guessing my SD card is /dev/sde, but what do I do about the "is not a valid block device" ?? This card works fine in Windows 7.

Answer 1

If card does not work in camera either, it may be faulty.
If card works in camera, format it with Ma's Disk Utility and see it if then works with Mac.  If so, check in camera to see if the camera can use the Mac formatted version.
To see if you have a Mac problem, try other cards in your Mac or try the non-working card in a known-good Mac.
Message was edited by: EZ Jim
Mac OSX 10.8.5