CentOS7中默认开启cgorupv2需要升级systemd版本，当前最靠谱的升级方式为Facebook维护的backports

0. 搭建本地仓库

打包好的rpm包在repo目录下，可以使用createrepo命令快速搭建自定义mirror

# 创建repodate
createrepo repo/
cd repo
# 启动http服务提供本地rpm源服务
nohup python -m SimpleHTTPServer &
cat << EOF | tee /etc/yum.repos.d/localhost
[localhost]
name=localhost
baseurl=http://127.0.0.1:8000/
enabled=1
gpgcheck=0
EOF

在此基础上，新增配置epel repo和elrepo

完成源配置之后，参考步骤1到3可在CentOS7.9系统上复现打包过程

注意，本仓库中提供的systemd版本的dbus-broker没有升级，不能用于生产环境

1. 安装并配置mock

工具包安装

yum install fedora-packager

自定义源配置

自定义源配置如下，==注意先启动本地rpm源服务==

cd /etc/mock
# 查看默认配置
mock]# cat default.cfg
include('templates/epel-7.tpl')

config_opts['root'] = 'epel-7-x86_64'
config_opts['target_arch'] = 'x86_64'
config_opts['legal_host_arches'] = ('x86_64',)

# 添加自定义源
cp templates/epel-7.tpl templates/epel-7.tpl.bak
cat << EOF | tee templates/epel-7.tpl
include('templates/centos-7.tpl')

config_opts['chroot_setup_cmd'] = 'install @buildsys-build'

config_opts['yum.conf'] += """
[localhost]
name=localhost
baseurl=http://127.0.0.1:8000/
enabled=1
gpgcheck=0

[epel]
name=Extra Packages for Enterprise Linux \$releasever - \$basearch
mirrorlist=http://mirrors.fedoraproject.org/mirrorlist?repo=epel-7&arch=\$basearch
failovermethod=priority
gpgkey=file:///usr/share/distribution-gpg-keys/epel/RPM-GPG-KEY-EPEL-7
gpgcheck=1
skip_if_unavailable=False

[epel-testing]
name=Extra Packages for Enterprise Linux \$releasever - Testing - \$basearch
enabled=0
mirrorlist=http://mirrors.fedoraproject.org/mirrorlist?repo=testing-epel7&arch=\$basearch
failovermethod=priority
skip_if_unavailable=False

[local]
name=local
baseurl=https://kojipkgs.fedoraproject.org/repos/epel7-build/latest/\$basearch/
cost=2000
enabled=0
skip_if_unavailable=False

[epel-debuginfo]
name=Extra Packages for Enterprise Linux \$releasever - \$basearch - Debug
mirrorlist=http://mirrors.fedoraproject.org/mirrorlist?repo=epel-debug-7&arch=\$basearch
failovermethod=priority
enabled=0
skip_if_unavailable=False
"""
EOF

2. 制作dependencies的rpm包

cd dependencies
mock --rebuild curl-7.49.0-1.fc25.src.rpm
cp /var/lib/mock/epel-7-x86_64/result/*.rpm repo

3. 制作backport rpm包

部分包的编译顺序有依赖

util-linux --> systemd-compat-libs
rpm-4.13.1 --> systemd

# 已不用编译python34的依赖，修改spec文件改用python36
# python34-cssselect --> python34-lxml --> systemd --> dbus-broker

编译命令

# 下载源代码
spectool -g -R rpms/systemd/specfiles/systemd.spec
# 打包src.rpm
rpmbuild -bs rpms/systemd/specfiles/systemd.spec
# 使用src.rpm打包二进制rpm
mock --rebuild /root/rpmbuild/SRPMS/systemd-246.1-1.fb7.src.rpm

4. 其他说明

4.1 包维护说明

项目	说明
fedora历史版本src.rpm下载	https://koji.fedoraproject.org/koji/index
centos历史版本src.rpm下载	https://cbs.centos.org/koji/index
spec规范文档	https://docs.fedoraproject.org/en-US/packaging-guidelines/

4.2 systemd安装注意点

想要默认启动systemd，需要确保initrd启动调用的systemd为打包后的版本，通过dmesg可以查看。具体参考issue
升级systemd，注意要先升级systemd再升级内核，不然需要在重启后用dracut工具重新生成initrd

Facebook backported RPMs for CentOS

Note: this repository is no longer being updated. See MIGRATION.md for more information.

This repo contains a number of RPM packages that we backported to CentOS 7 and run in our infrastructure. Most of these packages have dependencies from EPEL and from the last released CentOS 7 point release. Some packages also have extra dependencies from Fedora Rawhide that we list below. Because we pull from Rawhide, some of these versions may no longer be available; in that case it's usually safe to use the latest release, but feel free to file an issue as well. In our environment we import the src.rpm for these dependencies and rebuild them in mock.

Dependencies

systemd depends on the dbus, python34-csselect, python34-lxml, and util-linux packages from this repo. It also requires the following packages from Rawhide:

curl-7.49.0-1.fc25
dracut-044-75.fc25
kmod-22-4.fc25
libgudev-230-2.fc23

mkosi requires the following packages from Rawhide:

arch-install-scripts-15-3.fc24
archlinux-keyring-20160215-1.fc25
debootstrap-1.0.81-1.fc24
keyrings-filesystem-1-5.fc24
python35-3.5.2-3.fc23

Contribute

See the CONTRIBUTING file for how to help out.

License

The RPM specfiles in this repository are released under the MIT license. See LICENSE for more details.

changediff/rpm-backports