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This directory contains scripts, configuration files, etc., that are used to
prepare the virtual machine (VM) with a build2 repository web interface (brep)
described in ../README. This document provides terse notes on how this VM is
prepared.
The VM is prepared and tested using user brep:
# groupadd --gid 63700 brep
# useradd --uid 63700 --gid 63700 --create-home brep
# usermod --lock brep
# usermod -G kvm brep
Note: different UID/GID can be used by passing the --brep-user option to the
brep-install script.
# sudo su - brep
$ mkdir -p bin vm state/bpkg
Next copy the prepared VM image:
$ cp .../linux_debian_10.img vm/brep.img
The brep-install script assumes a Debian-based VM distribution. Other
distributions can probably be made to work but will require changes to
brep-install. The VM normally already has the following changes applied:
# apt-get install acpid # For QEMU system_powerdown to work.
# systemctl enable acpid
# systemctl enable serial-getty@ttyS0.service
# systemctl start serial-getty@ttyS0.service
# nano /etc/default/grub
# # GRUB_CMDLINE_LINUX_DEFAULT="console=ttyS0"
# # GRUB_TERMINAL="serial console"
# update-grub
# echo localhost >/etc/hostname
# nano /etc/dhcp/dhclient.conf
# # Comment out `send host-name ...`.
# # Add `send dhcp-client-identifier = hardware;`
Clone or copy the brep repository and create the directory structure:
$ cp -r ../brep ./
$ cp brep/etc/private/vm-* bin/
$ cp -r brep/etc/private ./etc
Download the build2 toolchain installation script:
$ curl -sSfO https://download.build2.org/X.Y.Z/build2-install-X.Y.Z.sh
$ # Verify the checksum.
$ mv build2-install-*.sh etc/install/
Start the VM (give as much CPU/RAM as available to speed up compilation):
$ ~/bin/vm-start --install etc/install/ --cpu 8 --ram 8G \
--tap tap0 --mac de:ad:be:ef:de:ad vm/brep.img
Login into the VM as root, then perform the following steps:
# mount -t 9p -o trans=virtio,version=9p2000.L install /mnt
# /mnt/brep-install --mount
After the installation is complete, test the result as described in ../README.
Note: to create a "clean" VM for distribution, pass the --clean option to
brep-install, shut the VM down immediately after installation, save the clean
VM image, then boot a copy for testing.
Generate the systemd service template file:
~/etc/install/vm-gen-service --bin bin --etc vm --var vm --run .
Test starting the VM as a systemd service as described in ../README.
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