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I have a Mac Book Pro, mid-2009 model that has a SD card slot. I just bought a SD Card from SanDisk, 8gb, SDHC.

When I insert the SD card in the slot, it is recognized by the MBP: I have a new icon on the desktop, NO NAME, and the disk utility tool shows me the information related to the disk and displays a correct volume size (around 7.95Gb).

In the Disk Utility Tool, when I click on disk verification, I get the following information:

Vérification du volume « NO NAME »Vérification du système de fichiers** /dev/disk1s1
** Phase 1 - Preparing FAT
** Phase 2 - Checking Directories
** Phase 3 - Checking for Orphan Clusters
Free space in FSInfo block (-1) not correct (242303)
Fix? no
0 files, 7753696 KiB free (242303 clusters)

Unfortunately, the Disk Utility Tool does not allow me to format the SD card.

The purpose of this SD Card is to use it to boot a Raspberry Pi. So I downloaded their utility SDFormatter. This utility recognizes the SD Card, but when I try to format it, it tells me that it is write protected.

Of course, the physical lock on the SD card itself is on the correct position!

So my question: is my old MBP compatible with this kind of SD Card?

Thanks.

  • It seems your not the only one. Maybe try some of the solutions here: discussions.apple.com/thread/3275447?start=0&tstart=0 – Kevin Grabher Mar 26 '14 at 2:09
  • Thanks @KevinGrabher I will have a look on these discussions. – Romain Linsolas Mar 26 '14 at 10:07
  • Unfortunately, my problem persists. I don't have the exact same issue as on these discussions. They don't succeed to mount the SD Card. I can, but it's on a read-only mode, and I can't format it to use it. – Romain Linsolas Mar 26 '14 at 10:52
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It finally seems that my MBP is incompatible with this SD card format or size.

I bought a multi-cards reader, and it works.

Note that the exact same behavior on a 2010 MBP.

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