CentOS7升级systemd版本到416.1
本文主要记录下在CentOS7折腾升级systemd的过程中踩得坑，方便以后需要的时候能够快速复盘。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
具体打包过程中见GitHub
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
1
2
3
4
5
6
7
8
9
10
11
12
|
createrepo repo/
cd repo
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
1. 安装并配置mock
工具包安装
1
| 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==
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
| cd /etc/mock
mock]
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',)
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
1
2
3
| 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
1
2
3
4
5
| 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
1
2
3
4
5
6
| # 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
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