Configuring the Yum Source

If you have access to the Internet, see Configuring a Yum Source from the Internet. openEuler does not allow configuring a Yum source from the Internet. See Configuring a Local Yum Source.
If you do not have access to the Internet, see Configuring a Local Yum Source.

Configuring a Yum Source from the Internet

Check that the Internet connection is normal.
1
curl www.baidu.com
Check for the Yum source (*.repo file). If it is available, go to 6.
1
ls /etc/yum.repos.d/

Back up the Yum source.

cd /etc/yum.repos.d
mkdir bak
mv *.repo bak

Configure the Yum source.

wget -O /etc/yum.repos.d/CentOS-Base.repo https://mirrors.huaweicloud.com/repository/conf/CentOS-AltArch-7.repo

View the Yum source.

ls /etc/yum.repos.d/
cat /etc/yum.repos.d/CentOS-Base.repo

Make the Yum source take effect.

yum clean all
yum makecache
yum list

Configuring a Local Yum Source

Download the OS image file.
OS image addresses:
- openEuler 20.03 LTS SP1 image: https://repo.huaweicloud.com/openeuler/openEuler-20.03-LTS-SP1/ISO/aarch64/openEuler-20.03-LTS-SP1-everything-aarch64-dvd.iso
- CentOS 7.6 image: https://mirrors.huaweicloud.com/centos-vault/altarch/7.6.1810/isos/aarch64/CentOS-7-aarch64-Everything-1810.iso
Mount the OS image file.
- Method 1: Upload the OS image file to the /root directory and mount it to the /mnt directory.
  - CentOS:
    1
    mount /root/CentOS-7-aarch64-Everything-1810.iso /mnt
  - openEuler:
    1
    mount /root/openEuler-20.03-LTS-SP1-everything-aarch64-dvd.iso /mnt
    Rename the ISO file based on your requirements. The renaming operation takes effect only once and becomes invalid after a system restart. You can perform the following operations for the image file to be automatically mounted upon system startup.
    Open the fstab file.
    1
    vi /etc/fstab
    
    Press i to enter the insert mode, and add the following content to the end of the fstab file:
    CentOS:
    1
    /root/CentOS-7-aarch64-Everything-1810.iso /mnt iso9660 loop 0 0
    
    openEuler:
    1
    /root/openEuler-20.03-LTS-SP1-everything-aarch64-dvd.iso /mnt iso9660 loop 0 0
    
    Press Esc, type :wq!, and press Enter to save the file and exit.
- Method 2: Use a browser to log in to the BMC and use the KVM to load the OS image file.
  1. Check the device symbol corresponding to the OS image.
```
ls /dev/sr*
```
  2. Mount the OS image file to the /mnt directory.
```
mount /dev/sr0 /mnt
df -h | grep /mnt
ls /mnt/
```
    /dev/sr0 is the device symbol corresponding to the OS image, which must be the same as that queried in 2.a.

Back up the Yum source.

cd /etc/yum.repos.d
mkdir bak
mv *.repo bak

Configure the local Yum source.
1. Go to the /etc/yum.repos.d directory.
  1
  cd /etc/yum.repos.d
2. Create a local.repo file.
  1. Open the local.repo file.
    1
    vim local.repo
  2. Press i to enter the insert mode and add the following content to the local.repo file:
    1 2 3 4 5
    [local] name=local.repo baseurl=file:///mnt enabled=1 gpgcheck=0
    The file path in baseurl is the image mount path, which is the /mnt directory in 2.
  3. Press Esc, type :wq!, and press Enter to save the file and exit.
  4. View the local.repo file.
```
cat local.repo
```

Make the Yum source take effect.

yum clean all
yum makecache
yum list

Parent topic: Configuring the Installation Environment