/* 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: 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=> And this is how I have my 4GB CF card (Transcend TS4GCF133)partitioned: 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 And I formatted the partitions under Linux using these commands: 305 12:45 sudo mkfs.msdos -n "boot" /dev/sdd1 309 12:45 sudo mkswap -L swap /dev/sdd2 312 12:46 sudo mkfs.ext4 -L root /dev/sdd3 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: =>make BOARD=cb030 clean && make BOARD=cb030 To build the Linux kernel, I use these commands: =>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 You only have to make cb030_defconfig once. To change the build options, use: =>make ARCH=m68k CROSS_COMPILE=m68k-elf- menuconfig =>make ARCH=m68k CROSS_COMPILE=m68k-elf- -j6 vmlinux && m68k-elf-objcopy -Obinary vmlinux linux.bin ----