DOS bootsector needed for NOOBS install?

Am Sat, 21 Nov 2015 22:09:02 +0000 schrieb Martin Gregorie:

Hi,

this is slightly offtopic here, but worth to mention anyway:

When the ISO is written the first time, afterwards the installation / setup process will boot from the SD card and then attempt to write the MBR.

Once, during one of my experiments, I forgot to remove the Write Protection on the Micro-SD to SD adapter, and, guess what?

The setup process continued, though the plastic switch was on "Lock". The MBR got written corretly and Raspbian finally ran, no matter if the card was set to RW or RO (!)

This, finally, means, that even a virus or trojan can write to "write- protected" SD cards. Maybe this is a hardware issue only concerning this adapter (I have no second one to test), but since it comes from "Imation", I assume that it is OK. That's somehow frustrating...

Best regards,

Markus

Am Sat, 21 Nov 2015 22:09:02 +0000 schrieb Martin Gregorie:

Hi,

this is slightly offtopic here, but worth to mention anyway:

When the ISO is written the first time, afterwards the installation / setup process will boot from the SD card and then attempt to write the MBR.

Once, during one of my experiments, I forgot to remove the Write Protection on the Micro-SD to SD adapter, and, guess what?

The setup process continued, though the plastic switch was on "Lock". The MBR got written corretly and Raspbian finally ran, no matter if the card was set to RW or RO (!)

This, finally, means, that even a virus or trojan can write to "write- protected" SD cards. Maybe this is a hardware issue only concerning this adapter (I have no second one to test), but since it comes from "Intenso", I assume that it is OK. That's somehow frustrating...

Best regards,

Markus

The slider on the adaptor/full sized card isn't connected to anything inside. It actuates a switch in the SD card socket, which controls write-protect in software only. On the Pi A/B that switch is not connected to anything and has no effect. On a micro SD card there is no such switch mechanism.

Dom

Am Mon, 23 Nov 2015 11:08:11 +0000 schrieb Dom:

Hi Dom,

I was wondering, because when putting the same Mico-SD-card as a "write- protected" (full-size) SD-card into a notebook, it was then mounted as "RO", as long as the slider was on "Lock". So, this really seems just like a "recommendation" to the OS, to please not write data onto it.

Thanks, this makes things clearer!

Best regards,

Markus