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| author | Johannes Stoelp <johannes.stoelp@gmail.com> | 2022-04-17 00:00:05 +0200 |
|---|---|---|
| committer | Johannes Stoelp <johannes.stoelp@gmail.com> | 2022-04-17 00:00:05 +0200 |
| commit | 9bdc2b4fec2f5d11c9648916f362206d31ab6e0d (patch) | |
| tree | fa06a961c280a0a40167efcf42f5c09ec4c59f45 /content/2021-12-02-toying-with-virtio | |
| parent | 0730e22f17dbbdcc8559d743494b20d5ca782b35 (diff) | |
| download | blog-9bdc2b4fec2f5d11c9648916f362206d31ab6e0d.tar.gz blog-9bdc2b4fec2f5d11c9648916f362206d31ab6e0d.zip | |
virtio: add script and make target to build ext2 device
Diffstat (limited to 'content/2021-12-02-toying-with-virtio')
| -rw-r--r-- | content/2021-12-02-toying-with-virtio/Makefile | 7 | ||||
| -rwxr-xr-x | content/2021-12-02-toying-with-virtio/build_ext2.sh | 7 |
2 files changed, 13 insertions, 1 deletions
diff --git a/content/2021-12-02-toying-with-virtio/Makefile b/content/2021-12-02-toying-with-virtio/Makefile index 4009862..d4286af 100644 --- a/content/2021-12-02-toying-with-virtio/Makefile +++ b/content/2021-12-02-toying-with-virtio/Makefile @@ -6,6 +6,7 @@ help: @echo "Build targets:" @echo "* init - Build busybox based initramfs." @echo "* kernel - Build minimal linux kernel." + @echo " ext2 - Build minimal ext2 fs as virtio blkdev backend (uses sudo)." @echo " clean - Cleanup downloads & builds." @echo "" @echo "Run targets:" @@ -27,6 +28,9 @@ kernel: init: ./build_initramfs.sh +ext2: + ./build_ext2.sh + run: qemu-system-x86_64 \ -nographic \ @@ -38,7 +42,7 @@ run: -device virtio-serial-pci \ -device virtconsole,chardev=vcon,name=console.0 \ -chardev socket,id=vcon,ipv4=on,host=localhost,port=2222,server,telnet=on,wait=off \ - -drive format=raw,if=virtio,file=rootfs.ext2 \ + -drive format=raw,if=virtio,file=blk.ext2 \ -nic user,model=virtio-net-pci vcon: @@ -48,6 +52,7 @@ clean: $(RM) initramfs.cpio.gz $(RM) -r busybox-* $(RM) -r linux-$(VER)* + $(RM) blk.ext2 docker: DOCKER_BUILDKIT=1 docker build --build-arg UID=$(shell id -u) -t virtio-dev . diff --git a/content/2021-12-02-toying-with-virtio/build_ext2.sh b/content/2021-12-02-toying-with-virtio/build_ext2.sh new file mode 100755 index 0000000..6e6bff8 --- /dev/null +++ b/content/2021-12-02-toying-with-virtio/build_ext2.sh @@ -0,0 +1,7 @@ +#!/bin/bash + +dd if=/dev/zero of=blk.ext2 bs=1M count=128 +mkfs.ext2 blk.ext2 +sudo mount -t ext2 -o loop blk.ext2 /mnt +echo world | sudo tee /mnt/hello +sudo umount /mnt |