Differences

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--- fm_towns:sdscsi [2023/10/09 11:42] – leonk
+++ fm_towns:sdscsi [2023/10/09 11:57] – leonk
@@ Line 33: / Line 33: @@
   * Download FM Towns 2.1 install CD image. I downloaded **[OS] Towns System Software v2.1 L51 [CD].7z** from (https://archive.org/details/neo_kobe_fujitsu_fm_towns_2016-02-25-repack_20200803)
-  * Rename the CUE file to CD1.cue and IMG file CD1.img. Edit the CD1.cue file and make sure the first line is updated to read:
+  * Rename the CUE file to **CD1.cue** and IMG file **CD1.img**. Edit the CD1.cue file and make sure the first line is updated to read:
 <file>
 FILE "CD1.bin" BINARY
 </file>
+This will make the SCSI device also define a SCSI attached CD-ROM drive at SCSI ID 1 with the FM Towns 2.1 install CD loaded in it. Next, we need a way to kick off the SCSI CD-ROM boot. Ideally, you hold A and B buttons on the joystick controller and press the reset button to get a boot menu selector. You select Hard Drive with ID 1 (navigate with A/B buttons in the boot loader). Press exit and it should boot.
+This did not work for me. I had to use an alternative boot loader to force the external CD-ROM to boot. The process is as following:
+   * Download the SCSI boot loader (**HDIMAGE.BIN**) from here (http://ysflight.in.coocan.jp/FM/towns/bootloader/emergency_hd_e.html)
+   * Rename HDIMAGE.BIN to **HD4.bin**
+   * Use the joystick method described above to force SCSI ID 4 to boot
+(Ain't it wild? You now have 3 SCSI devices attached to the machine! CD-ROM on SCSI ID 1, Drive Image on SCSI ID 3, and Boot loader on SCSI ID 4)
+   * When the boot loader menu comes up, select Boot from CD-ROM to have it load the FM Towns OS install CD.
+   * Follow these instructions to update your SRAM partitions and default boot device (https://monochromeeffect.org/JVCC/2020/03/23/towns-os-hdd-installation/)
+Note: There's a utility in the root of the CD that gives you the command prompt. You than cd into the EXE directory and run setup.exe as described in the above website. The drive image you downloaded above has 10 partitions. So you need to define drive D: to drive M: and then set the default boot drive to #3 (it's the menu item under the RS-232 option)
+When you get out of the tool, reboot and the computer should boot FM Towns OS 2.1 from the hard drive image found at SCSI ID 3.
+**If you find mistakes in this wiki - please update.**