Prepare AArch64 Linux guest OS image

1. Linaro image

• http://releases.linaro.org/openembedded/aarch64/16.07/

  • kernel: Image

  • rootfs1 (minimal): linaro-image-minimal-genericarmv8-20160724-830.rootfs.tar.gz

  • rootfs2 (LAMP): linaro-image-lamp-genericarmv8-20160724-830.rootfs.tar.gz

• usage

  • busybox udhcpc

  • linaro-minimal has udhcpc default script.

• more about Linaro OpenEmbedded

  • Bootstrapping ARM 64-bit with OpenEmbedded

  • Booting Linaro ARMv8 OE images with Qemu

  • https://wiki.linaro.org/Cycles/1509/Release

2. Ubuntu cloud image

   • odroid-c2 wiki

   • Booting ubuntu 16.04 cloud images on Arm64

   • problem: ubuntu cloud image 增大:

     qemu-img resize <image>+5G
     

     • https://gist.github.com/larsks/3933980

3. Some distro provides AArch64 ISO

• Ubuntu 16.04: http://cdimage.ubuntu.com/releases/16.04/release/

• Debian 8.6: http://cdimage.debian.org/debian-cd/8.6.0/arm64/iso-cd/

• Fedora 23: https://dl.fedoraproject.org/pub/fedora-secondary/releases/23/

Problems in AArch64 ISO installed rootfs

ubuntu, debian, fedora 的 AArch64 rootfs 皆無法在 odroid_c2 kvm 上跑起來.

• problems

  • ubuntu server iso 找不到 rootfs, 無法安裝

  • debian 安裝 grub 會失敗

  • fedora 裝完之後, boot 只能進到 EFI firmware

• solution

  • CD-ROM mount: use virtio-scsi-device and scsi-cd for CD-ROM

  • UEFI: boot up issue(UEFI)

debian failed:

fedora failed:

Misc

qemu & rootfs in arm64 資源

• odroid c2 wiki

  • qemu mode: kvm

  • rootfs: ubuntu cloud image

  • 相似: https://wiki.ubuntu.com/ARM64/QEMU

• https://www.bennee.com/~alex/blog/2014/05/09/running-linux-in-qemus-aarch64-system-emulation-mode/

  • qemu mode: tcg

  • rootfs: buildroot, Linaro

  • http://stenliao.blogspot.tw/2014/10/run-aarch64-linux-on-qemu.html

• http://osmanov-dev-notes.blogspot.tw/2016/03/arch-linux-armv8-vm-on-gentoo-amd64.html

  • qemu mode: tcg

  • rootfs: ArchlinuxARM generic. 用 loop mount + dump rootfs 來做 image. 但 image 好像保持 loop mount, qemu 會用 -kernel 直接指定 image 裡的 kernel.

• https://gist.github.com/ecliptik/81ad7484d522097dca7f

  • qemu mode: tcg

  • rootfs: ubuntu or debian from debootstrap

• https://fedoraproject.org/wiki/Architectures/AArch64/Install_with_QEMU

  • qemu mode: tcg

  • rootfs: fedora 23 (aarch64 server)

稍微整理一下

• rootfs 種類

  • buildroot

  • ubuntu cloud image

  • ubuntu server iso

  • ubuntu from debootstrap

  • debian from debootstrap

  • fedora server iso

  • archlinux arm generic rootfs (pacstrap)

• buildroot: 建立 embedded system rootfs 的 tool, 相似於 yocto/OpenEmbedded.

• QEMU command 分析: ../misc/qemu_command.rst