On 08/11/2011 8.59, Electron wrote: > > Does a MBR-type SD card REALLY allow multiple partitions? NO! It's prohibited from the SD specification. Only the first of four is al= lowed. > Last but not least, if I get a SD which is MBR-type (or convert one to it= , > if it's even possible (hardware registers/flags?)), and make it bootable, > can I run a OS from it (through a USB-SD adapter)? Yes. In both cases you can boot an OS. --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .