MicroSD Card Multi-Partitioning For SCSI2SD (S‑750 / S‑760 / S‑770)

ANIMSTAR Note: All references to the SCSI2SD Board apply only to the v5.0α SCSI2SD Board. It is unknown if any other board versions will work

Ray Bellis has generously made available a very useful Command Line script for Mac OS/X and LINUX and an XML file which will configure the SCSI2SD board and also multi‑partition a microSD card for use with a SCSI2SD and the S‑750 / S‑760 / S‑770 samplers. This is extremely handy because it effectively sets up a MicroSD card into four partitions. This enables each of the four partitions to hold the equivalent of one CD‑ROM *.ISO file. Loading CD‑ROM sample discs has never been easier!

When trying to use the Mac OS/X built-in GUI "Disk Utility" program, I've had zero success partitioning a MicroSD card into four equal sections and make it work with a SCSI2SD board. The Mac "Disk Utility" program has a mind of its own and will only create four equal partitions which are either too large or will start at the wrong sector(s). This Command Line utility script by Ray perform the needed magic. If you have some basic experience with using the Mac O/S Terminal, UNIX or LINUX, the commands are very simple to use and instructions are included in the readme file. The *.XML file also contains useful comments about advanced features when using it to configure the SCSI2SD board

The setup is in three parts
     Part 1 ‑ Create four partitions on a 4GB (or larger) MicroSD card using scsi2sd_4x800M.partitions.img with the "dd" command

                    (The MicroSD card should be plugged directly into the computer, NOT the SCSI2SD device)

     Part 2 ‑ Copy your CDROM *.ISO files onto the MicroSD card partitions using the built‑in "dd" command
                    (The MicroSD card should be plugged directly into the computer, NOT the SCSI2SD device)

     Part 3 ‑ Configure the SCSI2SD board by using the scsi2sd_4x800M.cfg.xml file and the scsi2sd‑util utility
                    (The SCSI2SD board should be attached to the computer via a micro‑USB cable)

Remove the MicroSD card from the computer and plug it into the SCSI2SD board and start creating music

I can't stress this enough ▻ ▻ ▻ It is very important to note that you must be absolutely sure you choose the correct device for your MicroSD card. If an internal or external hard drive is associated with /dev/disk2, the example commands in the "readme" file will need to be changed or else you might accidentally erase the main hard drive on your computer!

         DOWNLOAD SCSI2SD and MicroSD Partitioning Configs by Ray Bellis

Notes And Miscellaneous Info

❶ It is also possible to use the four new partitions on the MicroSD card as four 600MB Hard Drives or mix and match CD-ROM partitions with 600MB Hard Drive partitions. To mix and match, use the "scsi2sd‑util" program and manually setup each of the four SCSI2SD devices to be a CD‑ROM or a Hard Drive. After doing so, use the "dd" utility to copy the CD‑ROM *.ISO files or Hard Drive image files over to the appropriate partitions. If you don't have any Hard Drive image files to copy... no problem! Just leave the partitions blank and then use the S‑7xx sampler's O/S to format the new "Hard Drive(s)" on the MicroSD card. If you use several MicroSD cards, I suggest numbering each one and keep a text file to track the partitions on each card. I have 22+ MicroSD cards now and that's the only way I can remember the data on each card

❷ It is important to note that when using these four new partitions, the very first device on the SCSI2SD board starts with an offset of 63 sectors. This differs from the standard sector setting of "0" which is normally used when a MicroSD card uses only one giant partition. If you make any changes manually to the SCSI2SD board by mixing and matching SCSI devices, ensure that the first SCSI device always starts at sector 63

❸ For this four partition setup, it is optimal to use a 4GB MicroSD card. Larger SD cards may be used (I've tested up to 64GB using a MicroSD to SD card extension cable). Of course, any extra space on larger SD cards will not be recognized by the sampler's O/S. 2GB MicroSD cards will also work but the maximum number of SCSI devices you can use on the SCSI2SD will only be two

❹ For those of you who are curious to see what the MicroSD card partitioning looks like visually
               ● Insert the MicroSD card into the Mac. A pop‑up window will appear. Choose "Ignore"
               ● Run the "Disk Utility" program and click on the MicroSD card located on the right (Mine reads as "Apple SDXC Reader Media")


     This is what my screen looks like immediately after partitioning a MicroSD card using Ray's configuration files and then running the "Disk Utility" program

S-50 / S-550 ZONE
The Information On This Page Is Current As Of