nix on riscv development vm

nix.sh

# download riscv bbl
curl -O https://fedorapeople.org/groups/risc-v/disk-images/bbl

# download linux image
curl -O https://fedorapeople.org/groups/risc-v/disk-images/stage4-disk.img.xz

# uncompress linux image
unxz stage4-disk.img.xz

# run fedora inside riscv64 emulator
qemu-system-riscv64 \
   -nographic \
   -machine virt \
   -smp 4 \
   -m 2G \
   -kernel bbl \
   -object rng-random,filename=/dev/urandom,id=rng0 \
   -device virtio-rng-device,rng=rng0 \
   -append "console=ttyS0 ro root=/dev/vda" \
   -device virtio-blk-device,drive=hd0 \
   -drive file=stage4-disk.img,format=raw,id=hd0 \
   -device virtio-net-device,netdev=usernet \
   -netdev user,id=usernet,hostfwd=tcp::10000-:22
   
# user root, password riscv

# as root, install nix dependencies
dnf install git autoconf automake libtool bison boost-devel flex openssl-devel bzip2-devel sqlite-devel curl-devel libedit-devel readline-devel lzma-devel xz-devel brotli-devel 

# editline is not available for riscv but it is a required dependency, we build from source.
git clone https://github.com/laserpants/editline
cd editline
./autogen.sh
./configure
make
make install

git clone https://github.com/nixos/nix
cd nix
./bootstrap.sh

# editline puts library in /usr/local/lib and we have to tell nix to look for pkgconfig file in the right location.
export PKG_CONFIG_PATH=/usr/local/lib/pkgconfig

# seccomp is not available for riscv yet, so we disable sandboxing
# doc generation is disabled too due to attempts to load stuff via the network
./configure --disable-seccomp-sandboxing --disable-doc-gen

make

Final output should look like:

[root@stage4 nix]# make
CXX src/build-remote/build-remote.o
CXX src/nix-build/nix-build.o
CXX src/nix-channel/nix-channel.o
CXX src/nix-collect-garbage/nix-collect-garbage.o
CXX src/nix-copy-closure/nix-copy-closure.o
CXX src/nix-daemon/nix-daemon.o
CXX src/nix-env/nix-env.o
CXX src/nix-env/user-env.o
CXX src/nix-instantiate/nix-instantiate.o
CXX src/nix-prefetch-url/nix-prefetch-url.o
CXX src/nix-store/dotgraph.o
CXX src/nix-store/graphml.o
CXX src/nix-store/nix-store.o
CXX src/nix/add-to-store.o
CXX src/nix/build.o
CXX src/nix/cat.o
CXX src/nix/command.o