111 lines
2.8 KiB
Markdown
111 lines
2.8 KiB
Markdown
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The intent of this page is to provide simple instructions to perform an autoinstall in a VM on your machine on s390x.
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This page is just a slightly adapted page of [the autoinstall quickstart page](autoinstall-quickstart.md) mapped to s390x.
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## Download an ISO
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At the time of writing (just after the kinetic release), the best place to go is here:
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<https://cdimage.ubuntu.com/ubuntu/releases/22.10/release/>
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```bash
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wget https://cdimage.ubuntu.com/ubuntu/releases/22.10/release/ubuntu-22.10-live-server-s390x.iso -P ~/Downloads
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```
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## Mount the ISO
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```bash
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mkdir -p ~/iso
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sudo mount -r ~/Downloads/ubuntu-22.10-live-server-s390x.iso ~/iso
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```
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## Write your autoinstall config
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This means creating a cloud-init #cloud-config file as follows:
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```bash
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mkdir -p ~/www
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cd ~/www
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cat > user-data << 'EOF'
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#cloud-config
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autoinstall:
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version: 1
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identity:
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hostname: ubuntu-server
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password: "$6$exDY1mhS4KUYCE/2$zmn9ToZwTKLhCw.b4/b.ZRTIZM30JZ4QrOQ2aOXJ8yk96xpcCof0kxKwuX1kqLG/ygbJ1f8wxED22bTL4F46P0"
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username: ubuntu
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EOF
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touch meta-data
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```
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The crypted password is just "ubuntu".
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## Serve the cloud-init config over HTTP
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Leave this running in a new terminal window:
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```bash
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cd ~/www
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python3 -m http.server 3003
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```
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## Create a target disk
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Proceed with a second terminal window:
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```bash
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sudo apt install qemu-utils
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```
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```bash
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qemu-img create -f qcow2 disk-image.qcow2 10G
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Formatting 'disk-image.qcow2', fmt=qcow2 size=10737418240 cluster_size=65536 lazy_refcounts=off refcount_bits=16
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qemu-img info disk-image.qcow2
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image: disk-image.qcow2
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file format: qcow2
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virtual size: 10 GiB (10737418240 bytes)
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disk size: 196 KiB
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cluster_size: 65536
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Format specific information:
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compat: 1.1
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lazy refcounts: false
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refcount bits: 16
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corrupt: false
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```
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## Run the install!
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```bash
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sudo apt install qemu-kvm
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```
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You may need to add the default user to the `kvm` group:
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```bash
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sudo usermod -a -G kvm ubuntu
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```
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> **Note**:
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> You will need to re-login to make the changes take effect.
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```bash
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kvm -no-reboot -name auto-inst-test -nographic -m 2048 \
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-drive file=disk-image.qcow2,format=qcow2,cache=none,if=virtio \
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-cdrom ~/Downloads/ubuntu-22.10-live-server-s390x.iso \
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-kernel ~/iso/boot/kernel.ubuntu \
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-initrd ~/iso/boot/initrd.ubuntu \
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-append 'autoinstall ds=nocloud-net;s=http://_gateway:3003/ console=ttysclp0'
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```
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This will boot, download the config from the server set up in the previous step and run the install. The installer reboots at the end but the `-no-reboot` flag to `kvm` means that `kvm` will exit when this happens. It should take about 5 minutes.
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## Boot the installed system
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```bash
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kvm -no-reboot -name auto-inst-test -nographic -m 2048 \
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-drive file=disk-image.qcow2,format=qcow2,cache=none,if=virtio
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```
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This will boot into the freshly installed system and you should be able to log in as `ubuntu`/`ubuntu`.
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