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edwin11 02-24-2010 10:15 AM
Can Mount 1 GB SD Card But Not 4 GB SD Card
 
Hi all,

i am using Fedora 12.

i have a 1 GB SD card and a 4 GB SD card.

Using a USB flash reader, when i plug in the 1 GB SD card, dmesg shows

Code:
usb 1-5: new high speed USB device using ehci_hcd and address 11
usb 1-5: New USB device found, idVendor=058f, idProduct=6331
usb 1-5: New USB device strings: Mfr=1, Product=2, SerialNumber=3
usb 1-5: Product: Mass Storage Device
usb 1-5: Manufacturer: Generic
usb 1-5: SerialNumber: 058F0O1111B
usb 1-5: configuration #1 chosen from 1 choice
scsi12 : SCSI emulation for USB Mass Storage devices
usb-storage: device found at 11
usb-storage: waiting for device to settle before scanning
usb-storage: device scan complete
scsi 12:0:0:0: Direct-Access    Multi    Flash Reader    1.00 PQ: 0 ANSI: 0
sd 12:0:0:0: Attached scsi generic sg2 type 0
sd 12:0:0:0: [sdb] 1984000 512-byte logical blocks: (1.01 GB/968 MiB)
sd 12:0:0:0: [sdb] Write Protect is off
sd 12:0:0:0: [sdb] Mode Sense: 03 00 00 00
sd 12:0:0:0: [sdb] Assuming drive cache: write through
sd 12:0:0:0: [sdb] Assuming drive cache: write through
 sdb: sdb1
sd 12:0:0:0: [sdb] Assuming drive cache: write through
sd 12:0:0:0: [sdb] Attached SCSI removable disk
The device then shows up in fdisk -l, and i can mount it.

However, when i plug in the 4 GB SD card, dmesg shows:

Code:
usb 1-5: new high speed USB device using ehci_hcd and address 13
usb 1-5: New USB device found, idVendor=058f, idProduct=6331
usb 1-5: New USB device strings: Mfr=1, Product=2, SerialNumber=3
usb 1-5: Product: Mass Storage Device
usb 1-5: Manufacturer: Generic
usb 1-5: SerialNumber: 058F0O1111B
usb 1-5: configuration #1 chosen from 1 choice
scsi14 : SCSI emulation for USB Mass Storage devices
usb-storage: device found at 13
usb-storage: waiting for device to settle before scanning
usb-storage: device scan complete
scsi 14:0:0:0: Direct-Access    Multi    Flash Reader    1.00 PQ: 0 ANSI: 0
sd 14:0:0:0: Attached scsi generic sg2 type 0
usb 1-5: reset high speed USB device using ehci_hcd and address 13
usb 1-5: reset high speed USB device using ehci_hcd and address 13
usb 1-5: reset high speed USB device using ehci_hcd and address 13
usb 1-5: reset high speed USB device using ehci_hcd and address 13
usb 1-5: reset high speed USB device using ehci_hcd and address 13
sd 14:0:0:0: Device offlined - not ready after error recovery
sd 14:0:0:0: rejecting I/O to offline device
sd 14:0:0:0: rejecting I/O to offline device
sd 14:0:0:0: rejecting I/O to offline device
sd 14:0:0:0: [sdb] READ CAPACITY failed
sd 14:0:0:0: [sdb] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK
sd 14:0:0:0: [sdb] Sense not available.
sd 14:0:0:0: rejecting I/O to offline device
sd 14:0:0:0: [sdb] Write Protect is off
sd 14:0:0:0: [sdb] Mode Sense: 00 00 00 00
sd 14:0:0:0: [sdb] Assuming drive cache: write through
sd 14:0:0:0: [sdb] Attached SCSI removable disk
The device does not show up in fdisk -l, and i am unable to mount it.

What could be the issue here? Did i miss out anything?

(i was suspecting that it could be due to the 4 GB size being too large, but that's very unlikely, since i am able to mount a 16 GB micro SD card - through an Android phone though, not the USB reader.)

Any advice anyone?



Thanks in Advance,
Edwin

MBybee 02-24-2010 10:28 AM
You might want to try the following:

If this is an SDHC card, there may be an issue with the reader supporting high-capacity (unlike the android phone reader). Try to boot into another OS or a LiveCD, see if it works like that.
If that works, there may be other things you can try under Fedora.

If not, try a different reader.
Also check to see if there is a firmware fix for your reader. I have one here that had this issue, and I had to download a patch for it.


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