| Get Qemu | |
| https://www.qemu.org/download/ | |
| Get ubuntu for risc v5 - I choose ubuntu-20.04.4-preinstalled-server-riscv64+unmatched.img | |
| https://wiki.ubuntu.com/RISC-V | |
| Uncompress with xz and give yourself some more space - I did this using a WSL 2 ubuntu shell as it was easier to use the tools from linux | |
| xz -dk ubuntu-20.04.4-preinstalled-server-riscv64+unmatched.img.xz | |
| qemu-img resize -f raw ubuntu-20.04.4-preinstalled-server-riscv64+unmatched.img + 25G | |
| Now you need some firmware and a kernel for risc V which can be downloaded from here | |
| https://github.com/riscv-software-src/opensbi | |
| Download the latest opensbi release and grab the files you need | |
| cp opensbi-1.0-rv-bin/share/opensbi/lp64/generic/firmware/fw_jump.elf fw_jump.elf | |
| Download a uboot deb so you can pull out uboot.elf | |
| http://ftp.us.debian.org/debian/pool/main/u/u-boot/ | |
| u-boot-qemu_2022.04+dfsg-2_all.deb - is what I choose | |
| expand it | |
| ar -x u-boot-qemu_2022.04+dfsg-2_all.deb | |
| xz -dk data.tar.xz | |
| tar xvf data.tar | |
| cp usr/lib/u-boot/qemu-riscv64_smode/uboot.elf uboot.elf | |
| OK ready to roll | |
| qemu-system-riscv64 -machine virt -m 4096 -smp 4 -bios fw_jump.elf -kernel uboot.elf -device virtio-net-device,netdev=eth0 -netdev user,id=eth0 -drive file=ubuntu-20.04.4-preinstalled-server-riscv64+unmatched.img,format=raw,if=virtio -cpu rv64 | |
| username ubuntu | |
| password ubuntu | |
Looks like the FTP site does not maintain the RISC-V builds:
[ ] u-boot-tools_2022.04+dfsg-2+b1_amd64.deb 2022-05-14 20:13 202K
[ ] u-boot-tools_2022.04+dfsg-2+b1_arm64.deb 2022-05-14 20:13 190K
[ ] u-boot-tools_2022.04+dfsg-2+b1_armel.deb 2022-05-15 00:11 175K
[ ] u-boot-tools_2022.04+dfsg-2+b1_armhf.deb 2022-05-14 22:45 176K
[ ] u-boot-tools_2022.04+dfsg-2+b1_i386.deb 2022-05-14 22:44 206K
[ ] u-boot-tools_2022.04+dfsg-2+b1_mips64el.deb 2022-05-15 03:56 191K
[ ] u-boot-tools_2022.04+dfsg-2+b1_mipsel.deb 2022-05-15 06:02 195K
[ ] u-boot-tools_2022.04+dfsg-2+b1_ppc64el.deb 2022-05-14 21:29 218K
[ ] u-boot-tools_2022.04+dfsg-2+b1_s390x.deb 2022-05-15 04:26 189K
no RISC-V target.
has it percolated up to 'official' status?
https://packages.debian.org/sid/u-boot-qemu
Package: u-boot-qemu (2022.04+dfsg-2)
A boot loader for qemu
Das U-Boot is a cross-platform bootloader for embedded systems, used as the default boot loader by several board vendors. It is intended to be easy to port and to debug, and runs on many supported architectures, including PPC, ARM, MIPS, x86, m68k, NIOS, and Microblaze.
This package includes boot loaders for qemu/kvm.
Included platforms: qemu-ppce500 qemu-riscv64 qemu-riscv64_smode qemu-x86 qemu-x86_64 qemu_arm qemu_arm64
I found the above mentioned deb file here:
http://http.us.debian.org/debian/pool/main/u/u-boot/u-boot-qemu_2022.04+dfsg-2_all.deb
Theo, sorry for being so tardy getting back to you..., I will have a re run through the Gist and update with answers this week... Been very busy with one of my other projects at https://github.com/atsign-foundation
@cconstab the world has changed since you wrote this gist, and the uboot.elf step is orphaned. Where, in general, would the risc-v uboot.elf file be released into?
The files that are left in the FTP site are:
[ ] u-boot_2022.04+dfsg-2+b1_armel.deb 2022-05-15 00:11 549K
[ ] u-boot_2022.04+dfsg-2+b1_armhf.deb 2022-05-14 22:45 31K
[ ] u-boot_2022.04+dfsg-2.debian.tar.xz 2022-04-11 02:02 46K
[TXT] u-boot_2022.04+dfsg-2.dsc 2022-04-11 02:02 2.9K
[ ] u-boot_2022.04+dfsg.orig.tar.xz 2022-04-05 18:31 14M
and none of them contain a riscv uboot.elf file.
Trying to learn how to fish, so if you have the insight how these files are released, love to learn.