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Upgrade Ceonto 7 to Centos 8 #22

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opened 3 years ago by rbsetiawan · 0 comments

rbsetiawan commented 3 years ago

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Upgrade Ceonto 7 to Centos 8

Centos 7	Centos 8

Upgrade commad

How to Upgrade CentOS 7 to CentOS 8 Linux
https://www.tecmint.com/upgrade-centos-7-to-centos-8/

yum update

Step 1: Install the EPEL Repository
To start off, install the EPL repository by running:

yum install epel-release -y

Step 2: Install yum-utils Tools
After successfully installing EPEL, install yum-utils by running the command below.

yum install yum-utils

Thereafter, you need to resolve RPM packages by executing the command.

yum install rpmconf

rpmconf -a

Next, perform a clean-up of all the packages you don’t require.

package-cleanup --leaves

package-cleanup --orphans

Now install the dnf package manager which is the default package manager for CentOS 8.

yum install dnf

You also need to remove the yum package manager using the command.

dnf -y remove yum yum-metadata-parser

rm -Rf /etc/yum

We are now ready to upgrade CentOS 7 to CentOS 8, but before we do so, upgrade the system using the newly install dnf package manager.

dnf upgrade

Next, install CentOS 8 release package using dnf as shown below. This will take a while.

dnf install http://vault.centos.org/8.5.2111/BaseOS/x86_64/os/Packages/{centos-linux-repos-8-3.el8.noarch.rpm,centos-linux-release-8.5-1.2111.el8.noarch.rpm,centos-gpg-keys-8-3.el8.noarch.rpm}

Next, upgrade the EPEL repository.

dnf -y upgrade https://dl.fedoraproject.org/pub/epel/epel-release-latest-8.noarch.rpm

After successfully upgrading the EPEL repository, remove all the temporary files.

dnf clean all

Remove the old kernel core for CentOS 7.

rpm -e `rpm -q kernel`

Next, be sure to remove conflicting packages.

rpm -e --nodeps sysvinit-tools

Thereafter, launch the CentOS 8 system upgrade as shown.

dnf -y --releasever=8 --allowerasing --setopt=deltarpm=false distro-sync

To install a new kernel for CentOS 8, run the command.

dnf -y install kernel-core

Finally, install CentOS 8 minimal package.

dnf -y groupupdate "Core" "Minimal Install"

OR

dnf -y groupupdate "Core"

Now you can check the version of CentOS installed by running.

cat /etc/redhat-release

reboot

refrensi

• /www.tecmint.com: How to Upgrade CentOS 7 to CentOS 8 Linux

# Upgrade Ceonto 7 to Centos 8 | Centos 7<br> | Centos 8<br> | | --- | --- | |  |  | ## Upgrade commad How to Upgrade CentOS 7 to CentOS 8 Linux https://www.tecmint.com/upgrade-centos-7-to-centos-8/ ``` yum update ``` Step 1: Install the EPEL Repository To start off, install the EPL repository by running: ``` yum install epel-release -y ```  Step 2: Install yum-utils Tools After successfully installing EPEL, install yum-utils by running the command below. ``` yum install yum-utils ```  Thereafter, you need to resolve RPM packages by executing the command. ``` yum install rpmconf ``` ``` rpmconf -a ```  Next, perform a clean-up of all the packages you don’t require. ``` package-cleanup --leaves ``` ``` package-cleanup --orphans ```  Now install the dnf package manager which is the default package manager for CentOS 8. ``` yum install dnf ``` You also need to remove the yum package manager using the command. ``` dnf -y remove yum yum-metadata-parser ``` ``` rm -Rf /etc/yum ```  We are now ready to upgrade CentOS 7 to CentOS 8, but before we do so, upgrade the system using the newly install dnf package manager. ``` dnf upgrade ``` Next, install CentOS 8 release package using dnf as shown below. This will take a while. ``` dnf install http://vault.centos.org/8.5.2111/BaseOS/x86_64/os/Packages/{centos-linux-repos-8-3.el8.noarch.rpm,centos-linux-release-8.5-1.2111.el8.noarch.rpm,centos-gpg-keys-8-3.el8.noarch.rpm} ```  Next, upgrade the EPEL repository. ``` dnf -y upgrade https://dl.fedoraproject.org/pub/epel/epel-release-latest-8.noarch.rpm ```  After successfully upgrading the EPEL repository, remove all the temporary files. ``` dnf clean all ``` Remove the old kernel core for CentOS 7. ``` rpm -e `rpm -q kernel` ```  Next, be sure to remove conflicting packages. ``` rpm -e --nodeps sysvinit-tools ``` Thereafter, launch the CentOS 8 system upgrade as shown. ``` dnf -y --releasever=8 --allowerasing --setopt=deltarpm=false distro-sync ```  To install a new kernel for CentOS 8, run the command. ``` dnf -y install kernel-core ```  Finally, install CentOS 8 minimal package. ``` dnf -y groupupdate "Core" "Minimal Install" ``` OR ``` dnf -y groupupdate "Core" ``` Now you can check the version of CentOS installed by running. ``` cat /etc/redhat-release ```  ``` reboot ``` # refrensi - [/www.tecmint.com](https://www.tecmint.com/upgrade-centos-7-to-centos-8/): How to Upgrade CentOS 7 to CentOS 8 Linux

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rbsetiawan closed this issue 3 years ago

rbsetiawan added the

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rbsetiawan referenced this issue 3 years ago

Migrate centos 7 to other lunux #21

rbsetiawan self-assigned this 3 years ago

rbsetiawan added the

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