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使用VMWare安装centos7

启用网卡设备

修改文件/etc/sysconfig/network-scripts/ifcfg-ens33中的ONBOOT=yes

重启网络服务 systemctl restart network

配置yum仓库

直接将如下内容覆盖原有的/etc/yum.repos.d/CentOS-Base.repo文件

清理yum缓存

yum clean all

刷新yum

yum update

注意：本机是X86_64并且是centos7环境

# CentOS-Base.repo
#
# The mirror system uses the connecting IP address of the client and the
# update status of each mirror to pick mirrors that are updated to and
# geographically close to the client.  You should use this for CentOS updates
# unless you are manually picking other mirrors.
#
# If the mirrorlist= does not work for you, as a fall back you can try the 
# remarked out baseurl= line instead.
#
#[base]
name=CentOS-7 - Base - mirrors.aliyun.com
failovermethod=priority
baseurl=http://mirrors.aliyun.com/centos/7/os/x86_64/http://mirrors.aliyuncs.com/centos/7/os/x86_64/http://mirrors.cloud.aliyuncs.com/centos/7/os/x86_64/
gpgcheck=1
gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-7#released updates 
[updates]
name=CentOS-7 - Updates - mirrors.aliyun.com
failovermethod=priority
baseurl=http://mirrors.aliyun.com/centos/7/updates/x86_64/http://mirrors.aliyuncs.com/centos/7/updates/x86_64/http://mirrors.cloud.aliyuncs.com/centos/7/updates/x86_64/
gpgcheck=1
gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-7#additional packages that may be useful
[extras]
name=CentOS-7 - Extras - mirrors.aliyun.com
failovermethod=priority
baseurl=http://mirrors.aliyun.com/centos/7/extras/x86_64/http://mirrors.aliyuncs.com/centos/7/extras/x86_64/http://mirrors.cloud.aliyuncs.com/centos/7/extras/x86_64/
gpgcheck=1
gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-7#additional packages that extend functionality of existing packages
[centosplus]
name=CentOS-7 - Plus - mirrors.aliyun.com
failovermethod=priority
baseurl=http://mirrors.aliyun.com/centos/7/centosplus/x86_64/http://mirrors.aliyuncs.com/centos/7/centosplus/x86_64/http://mirrors.cloud.aliyuncs.com/centos/7/centosplus/x86_64/
gpgcheck=1
enabled=0
gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-7#contrib - packages by Centos Users
[contrib]
name=CentOS-7 - Contrib - mirrors.aliyun.com
failovermethod=priority
baseurl=http://mirrors.aliyun.com/centos/7/contrib/x86_64/http://mirrors.aliyuncs.com/centos/7/contrib/x86_64/http://mirrors.cloud.aliyuncs.com/centos/7/contrib/x86_64/
gpgcheck=1
enabled=0
gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-7

安装wget

yum install -y wget

安装gcc

新建一个目录并且进入该目录

mkdir ~/software;cd ~/software

下载gcc安装包

wget https://ftp.gnu.org/gnu/gcc/gcc-10.5.0/gcc-10.5.0.tar.gz

解压安装包

tar -xvf gcc-10.5.0.tar.gz

进入解压后的文件夹

cd gcc-10.5.0

下载gcc 依赖项

yum install make bzip2 curl file gcc gcc-c++ glibc-devel glibc-static libmpc-devel mpfr-devel libstdc++-devel libatomic libatomic-devel perl-ExtUtils-MakeMaker perl-Test-Simple perl-File-Temp perl-Time-HiRes perl-Path-Tiny perl-Getopt-Long perl-File-Copy-Recursive perl-Module-BuildTiny texinfo bison flex libmpc libmpfr libgmp zlib-devel

下载前置依赖项

./contrib/download_prerequisites

配置gcc

./configure --prefix=/usr/local --enable-bootstrap --enable-languages=c,c++,fortran --disable-multilib --enable-shared --with-system-zlib --without-included-gettext

编译gcc

make -j$(nproc)

注意：若编译过程中出现其他报错，一般是依赖项错误，可以自行根据错误信息检索解决方法

安装gcc