如何搭建本地和网络yum源？
1、自建yum仓库，分别为网络源和本地源
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1）挂载光盘镜像
[root@centos7 ~]# mount /dev/sr0 /mnt/
[root@centos7 ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/centos-root 60G 5.2G 55G 9% /
devtmpfs 983M 0 983M 0% /dev
tmpfs 1000M 0 1000M 0% /dev/shm
tmpfs 1000M 75M 926M 8% /run
tmpfs 1000M 0 1000M 0% /sys/fs/cgroup
/dev/sda1 1014M 166M 849M 17% /boot
tmpfs 200M 52K 200M 1% /run/user/1008
/dev/sr0 11G 11G 0 100% /mnt
tmpfs 200M 0 200M 0% /run/user/0
2)搭建本地源
[root@centos7 yum.repos.d]# cat > local.repo < > [local] > name=centos7.6 > baseurl=file:///mnt > enabled=1 > gpgcheck=0 > EOF 3）安装httpd并搭建网络yum源 [root@centos7 yum.repos.d]# yum install httpd -y #安装成功代表本地源生效 [root@centos7 html]# cd /var/www/html [root@centos7 html]# ln -s /mnt centos7.6 [root@centos7 html]# ls centos7.6/ CentOS_BuildTag GPL LiveOS RPM-GPG-KEY-CentOS-7 EFI images Packages RPM-GPG-KEY-CentOS-Testing-7 EULA isolinux repodata TRANS.TBL 4）验证网络yum源（在另外一台centos7上验证） 配置使用网络yum源： [root@jumpserver yum.repos.d]# cat local.repo [local] name=centos7.6 baseurl=http://网络yum源的ip/centos7.6 enabled=1 gpgcheck=0 [root@jumpserver yum.repos.d]# 安装httpd成功代表网络yum源可用 [root@jumpserver yum.repos.d]# yum install httpd -y 1）解压 [root@centos7 bin]# rpm -qi httpd package httpd is not installed [root@centos7 src]# tar -xf httpd-2.4.41.tar.gz 2）Configure [root@centos7 src]# cd httpd-2.4.41/ [root@centos7 httpd-2.4.41]# ./configure checking for chosen layout... Apache checking for working mkdir -p... yes checking for grep that handles long lines and -e... /usr/bin/grep checking for egrep... /usr/bin/grep -E checking build system type... x86_64-pc-linux-gnu checking host system type... x86_64-pc-linux-gnu checking target system type... x86_64-pc-linux-gnu configure: configure: Configuring Apache Portable Runtime library... configure: checking for APR... no configure: error: APR not found. Please read the documentation. 安装缺少的依赖包： [root@centos7 httpd-2.4.41]# yum install apr* pcre* -y [root@centos7 src]# cd httpd-2.4.41/ 3）编译 [root@centos7 httpd-2.4.41]# make 4）安装 [root@centos7 httpd-2.4.41]# make install 5）启动并验证 [root@centos7 bin]# pwd /usr/local/apache2/bin [root@centos7 bin]# ./apachectl -k start [root@centos7 bin]# ps aux |grep apache root 14751 0.0 0.1 103732 2728 ? Ss 18:34 0:00 /usr/local/apache2/bin/httpd -k start daemon 14754 0.0 0.1 392644 2416 ? Sl 18:34 0:00 /usr/local/apache2/bin/httpd -k start daemon 14755 0.0 0.1 392644 2424 ? Sl 18:34 0:00 /usr/local/apache2/bin/httpd -k start daemon 14756 0.0 0.1 458180 2424 ? Sl 18:34 0:00 /usr/local/apache2/bin/httpd -k start [root@centos7 bin]# curl localhost
2、编译安装http2.4，实现可以正常访问，并将编译步骤和结果提交。It works!
[root@centos7 bin]#
3、创建一个2G的文件系统，块大小为2048byte，预留1%可用空间,文件系统 ext4，卷标为TEST，要求此分区开机后自动挂载至/test目录，且默认有acl挂载选项
1)为虚拟机添加一块硬盘并让系统马上识别硬盘
[root@centos7 ~]# echo "- - -" > /sys/class/scsi_host/host0/scan
[root@centos7 ~]# fdisk -l
Disk /dev/sda: 107.4 GB, 107374182400 bytes, 209715200 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk label type: dos
Disk identifier: 0x0003e74f
Device Boot Start End Blocks Id System
/dev/sda1 * 2048 2099199 1048576 83 Linux
/dev/sda2 2099200 136333311 67117056 8e Linux LVM
Disk /dev/mapper/centos-root: 64.4 GB, 64424509440 bytes, 125829120 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk /dev/mapper/centos-swap: 4294 MB, 4294967296 bytes, 8388608 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk /dev/sdb: 53.7 GB, 53687091200 bytes, 104857600 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
2）创建一个2G的分区
[root@centos7 ~]# fdisk /dev/sdb
Welcome to fdisk (util-linux 2.23.2).
Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.
Device does not contain a recognized partition table
Building a new DOS disklabel with disk identifier 0xfbaa7750.
Command (m for help): n
Partition type:
p primary (0 primary, 0 extended, 4 free)
e extended
Select (default p): p
Partition number (1-4, default 1): 1
First sector (2048-104857599, default 2048):
Using default value 2048
Last sector, +sectors or +size{K,M,G} (2048-104857599, default 104857599): +2G
Partition 1 of type Linux and of size 2 GiB is set
Command (m for help): w
The partition table has been altered!
Calling ioctl() to re-read partition table.
Syncing disks.
3)按要求创建分区并挂载
[root@centos7 ~]# mke2fs -t ext4 -b 2048 -L 'TEST' -m 1 /dev/sdb1
[root@centos7 ~]# echo "/dev/sdb1 /test ext4 acl 0 0" >> /etc/fstab
[root@centos7 ~]#mkdir /test
[root@centos7 ~]#mount -a
4、创建一个至少有两个PV组成的大小为20G的名为testvg的VG;要求PE大小为16MB, 而后在卷组中创建大小为5G的逻辑卷testlv;挂载至/users目录1) 创建2个10G大小的分区
[root@centos7 ~]# fdisk /dev/sdb
Welcome to fdisk (util-linux 2.23.2).
Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.
Command (m for help): p
Disk /dev/sdb: 53.7 GB, 53687091200 bytes, 104857600 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk label type: dos
Disk identifier: 0xfbaa7750
Device Boot Start End Blocks Id System
/dev/sdb1 2048 4196351 2097152 83 Linux
Command (m for help): n
Partition type:
p primary (1 primary, 0 extended, 3 free)
e extended
Select (default p): p
Partition number (2-4, default 2):
First sector (4196352-104857599, default 4196352):
Using default value 4196352
Last sector, +sectors or +size{K,M,G} (4196352-104857599, default 104857599): +10G
Partition 2 of type Linux and of size 10 GiB is set
Command (m for help): p
Disk /dev/sdb: 53.7 GB, 53687091200 bytes, 104857600 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk label type: dos
Disk identifier: 0xfbaa7750
Device Boot Start End Blocks Id System
/dev/sdb1 2048 4196351 2097152 83 Linux
/dev/sdb2 4196352 25167871 10485760 83 Linux
Command (m for help): n
Partition type:
p primary (2 primary, 0 extended, 2 free)
e extended
Select (default p): p
Partition number (3,4, default 3):
First sector (25167872-104857599, default 25167872):
Using default value 25167872
Last sector, +sectors or +size{K,M,G} (25167872-104857599, default 104857599): +10G
Partition 3 of type Linux and of size 10 GiB is set
Command (m for help): p
Disk /dev/sdb: 53.7 GB, 53687091200 bytes, 104857600 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk label type: dos
Disk identifier: 0xfbaa7750
Device Boot Start End Blocks Id System
/dev/sdb1 2048 4196351 2097152 83 Linux
/dev/sdb2 4196352 25167871 10485760 83 Linux
/dev/sdb3 25167872 46139391 10485760 83 Linux
Command (m for help): w
The partition table has been altered!
Calling ioctl() to re-read partition table.
Syncing disks.
[root@centos7 ~]#
2）创建pv
[root@centos7 ~]# pvcreate /dev/sdb2 /dev/sdb3
Physical volume "/dev/sdb2" successfully created.
Physical volume "/dev/sdb3" successfully created.
[root@centos7 ~]#
3）创建逻辑卷组
[root@centos7 ~]# vgcreate -s 16MB testvg /dev/sdb2 /dev/sdb3
Volume group "testvg" successfully created
[root@centos7 ~]# vgdisplay testvg
--- Volume group ---
VG Name testvg
System ID
Format lvm2
Metadata Areas 2
Metadata Sequence No 1
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 0
Open LV 0
Max PV 0
Cur PV 2
Act PV 2
VG Size <19.97 GiB
PE Size 16.00 MiB
Total PE 1278
Alloc PE / Size 0 / 0
Free PE / Size 1278 / <19.97 GiB
VG UUID 0fGU0o-XJGc-TKQD-2G2G-bL3I-bO7I-3sV4Y0
[root@centos7 ~]#
4）创建大小为5G的逻辑卷testlv；挂载至/users目录
[root@centos7 ~]# lvcreate -L 5G -n testlv testvg
Logical volume "testlv" created.
[root@centos7 ~]# lvdisplay testvg
--- Logical volume ---
LV Path /dev/testvg/testlv
LV Name testlv
VG Name testvg
LV UUID Onl32p-WxHz-TcX3-EBzf-plNB-I01E-sPCuev
LV Write Access read/write
LV Creation host, time centos7.6, 2020-03-08 21:10:12 +0800
LV Status available
# open 0
LV Size 5.00 GiB
Current LE 320
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 253:2
[root@centos7 ~]# mkdir /users
[root@centos7 ~]# mkfs.xfs /dev/mapper/testvg-testlv
meta-data=/dev/mapper/testvg-testlv isize=512 agcount=4, agsize=327680 blks
= sectsz=512 attr=2, projid32bit=1
= crc=1 finobt=0, sparse=0
data = bsize=4096 blocks=1310720, imaxpct=25
= sunit=0 swidth=0 blks
naming =version 2 bsize=4096 ascii-ci=0 ftype=1
log =internal log bsize=4096 blocks=2560, version=2
= sectsz=512 sunit=0 blks, lazy-count=1
realtime =none extsz=4096 blocks=0, rtextents=0
[root@centos7 ~]# mount /dev/mapper/testvg-testlv /users
[root@centos7 ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/centos-root 60G 5.4G 55G 9% /
devtmpfs 983M 0 983M 0% /dev
tmpfs 1000M 0 1000M 0% /dev/shm
tmpfs 1000M 74M 926M 8% /run
tmpfs 1000M 0 1000M 0% /sys/fs/cgroup
/dev/sda1 1014M 166M 849M 17% /boot
tmpfs 200M 0 200M 0% /run/user/0
/dev/sr0 11G 11G 0 100% /mnt
/dev/mapper/testvg-testlv 5.0G 33M 5.0G 1% /users
[root@centos7 ~]#
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