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--- builderpages:mikemac:cb030 [2025/02/12 22:00] – Revision from 2025-02-12
+++ builderpages:mikemac:cb030 [2026/06/15 13:02] (current) – external edit 127.0.0.1
@@ Line 1: / Line 1: @@
+/* Imported from Wayback Machine
+   Original URL : https://www.retrobrewcomputers.org/doku.php?id=builderpages:mikemac:cb030
+   Snapshot date: 2025-03-15
+   Generator    : wayback-archiver
+*/
+Here are the files needed to run Linux on [[builderpages:plasmo:cb030:cb030_rev1|Plasmo's CB3030 board.]]
+----
+===== March 30,2020 Release =====
+This is the initial release of a boot loader for the CB030 based upon Tobster's [[builderpages:tobster:t030|T030 boot loader]] and Linux 4.9.156 using an initrd for the file system. It does support the CF interface but does not contain any networking support.
+==== Boot Loader ====
+Before you can run use the boot loader, you'll need Updated CPLD from Plasmo's CB030 page. Currently there is a separate binary for each size of SIMM installed in the board:
+[[https://www.retrobrewcomputers.org/lib/exe/fetch.php?media=builderpages:mikemac:cb030:r20200330:cb030bios-16m.bin.zip|:builderpages:mikemac:cb030:r20200330:cb030bios-16m.bin.zip]]
+[[https://www.retrobrewcomputers.org/lib/exe/fetch.php?media=builderpages:mikemac:cb030:r20200330:cb030bios-32m.bin.zip|:builderpages:mikemac:cb030:r20200330:cb030bios-32m.bin.zip]]
+[[https://www.retrobrewcomputers.org/lib/exe/fetch.php?media=builderpages:mikemac:cb030:r20200330:cb030bios-64m.bin.zip|:builderpages:mikemac:cb030:r20200330:cb030bios-64m.bin.zip]]
+[[https://www.retrobrewcomputers.org/lib/exe/fetch.php?media=builderpages:mikemac:cb030:r20200330:cb030bios-128m.bin.zip|:builderpages:mikemac:cb030:r20200330:cb030bios-128m.bin.zip]]
+The boot loader (via 0.cmd) will load the initrd and linux kernel and launch Linux. There should be a msdos or fat partition (**NOT** a vfat or any extended FAT partition type as the boot loader doesn't currently have support for extended/long fiel names) on the CF with this contents:
+<code code>
+Mercury=>ls /mnt/tmp
+total 4166
+-rwxr-xr-x 1 root root     191 Mar 27 12:28 0.cmd
+-rwxr-xr-x 1 root root 1132600 Mar 29 12:00 initrd.gz
+-rwxr-xr-x 1 root root 3124952 Mar 30 11:43 linux.bin
+Mercury=>
+</code>
+And this is how I have my 4GB CF card (Transcend TS4GCF133)partitioned:
+<code code>
+   Device Boot      Start         End      Blocks   Id  System
+/dev/sdd1               1           2       16033+   c  W95 FAT32 (LBA)
+/dev/sdd2               3          11       72292+  82  Linux swap / Solaris
+/dev/sdd3              12         487     3823470   83  Linux
+</code>
+And I formatted the partitions under Linux using these commands:
+<code code>
+  12:45   sudo mkfs.msdos -n "boot" /dev/sdd1
+  12:45   sudo mkswap -L swap /dev/sdd2
+  12:46   sudo mkfs.ext4 -L root /dev/sdd3
+</code>
+During initialization, the boot loader will run the “0.cmd” if it can find it on the first partition of the CF. You can opt out of that by hitting **Enter** during the first 5 seconds or so.
+Once you get the Linux login prompt, **root** is the account name and there is no password. You should then be greeted by the shell prompt and a //normal// Linux experience.
+==== Linux Images ====
+[[https://www.retrobrewcomputers.org/lib/exe/fetch.php?media=builderpages:mikemac:cb030:r20200330:0.cmd.zip|:builderpages:mikemac:cb030:r20200330:0.cmd.zip]]
+[[https://www.retrobrewcomputers.org/lib/exe/fetch.php?media=builderpages:mikemac:cb030:r20200330:initrd.gz|:builderpages:mikemac:cb030:r20200330:initrd.gz]]
+[[https://www.retrobrewcomputers.org/lib/exe/fetch.php?media=builderpages:mikemac:cb030:r20200330:linux.bin.zip|:builderpages:mikemac:cb030:r20200330:linux.bin.zip]]
+==== Sources ====
+[[https://www.retrobrewcomputers.org/lib/exe/fetch.php?media=builderpages:mikemac:cb030:r20200330:t030bios.tgz|:builderpages:mikemac:cb030:r20200330:t030bios.tgz]]
+[[https://www.retrobrewcomputers.org/lib/exe/fetch.php?media=builderpages:mikemac:cb030:r20200330:linux-4.9.156.tgz|:builderpages:mikemac:cb030:r20200330:linux-4.9.156.tgz]]
+To build the boot loader, you'll need a m68k cross compiler along with newlib built for the m68k. I then use this command to build the image:
+<code code>
+=>make BOARD=cb030 clean && make BOARD=cb030
+</code>
+To build the Linux kernel, I use these commands:
+<code code>
+=>make ARCH=m68k CROSS_COMPILE=m68k-elf- cb030_defconfig
+=>make ARCH=m68k CROSS_COMPILE=m68k-elf- -j6 vmlinux && m68k-elf-objcopy -Obinary vmlinux linux.bin
+</code>
+You only have to make cb030_defconfig once. To change the build options, use:
+<code code>
+=>make ARCH=m68k CROSS_COMPILE=m68k-elf- menuconfig
+=>make ARCH=m68k CROSS_COMPILE=m68k-elf- -j6 vmlinux && m68k-elf-objcopy -Obinary vmlinux linux.bin
+</code>
+----