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NavinF
Cadet
Cadet
  • 1,994 Views

How do I upgrade from RHEL 8.6 to RHEL 8.7 in offline method.

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Hi, 

I need to upgrade my existing RHEL 8.6 Virtual machine to RHEL 8.7.

However, due to security reasons I cannot expose my VM to the internet.

I do not have satellite and it will be a manual uggrade.

 

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ipalagin
Flight Engineer Flight Engineer
Flight Engineer
  • 1,967 Views

Just for 8.7 upgrade - download RHEL-8.7 full ISO, mount and upgrade.

 

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NavinF
Cadet
Cadet
  • 1,919 Views

I tried this method and it worked.

Following steps followed:

1] downloaded the iso from redhat site.

2] mounted the ISO on a local partion e.g. /mnt/ISO1

mount -t iso9660 -o loop /ISObackup/rhel-8.7-x86_64-dvd.iso /mnt/ISO1/

3] made a local repo in /etc/yum.repos.d

4] yum clean all

5] dnf repolist

6] yum upgrade

7] systemctl reboot

 

 

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5 Replies
Chetan_Tiwary_
Moderator
Moderator
  • 1,977 Views

Hello @NavinF !

Refer this and see if this helps : https://access.redhat.com/solutions/29269 .

This should also work :

  1. You need to have an online system as well from where you can download the RPM updates and then copy it over to the offline system.
  2. Copy the RPM db in a tar file from the offline system to the online system using scp/rsync.
  3. extract the contents of this tar file to a new directory in the online system.
  4. Now download all the updates into this new directory in the online system using --downloadonly & --downloaddir option in the yum update command.
  5. Now copy these updates to the offline system using scp / rsync .
  6. Then do a  "yum localinstall <dir-with-updates-from-online-system>"

 

EmanuelHaine
Flight Engineer
Flight Engineer
  • 1,969 Views

Hi @NavinF 

 

Is it possible to configure your firewall for just accepting established connections? For example, you can allow the traffic from the VM to the Internet and not allow the traffic directly from the Internet, unless it was initiated from the VM.

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ipalagin
Flight Engineer Flight Engineer
Flight Engineer
  • 1,968 Views

Just for 8.7 upgrade - download RHEL-8.7 full ISO, mount and upgrade.

 

NavinF
Cadet
Cadet
  • 1,920 Views

I tried this method and it worked.

Following steps followed:

1] downloaded the iso from redhat site.

2] mounted the ISO on a local partion e.g. /mnt/ISO1

mount -t iso9660 -o loop /ISObackup/rhel-8.7-x86_64-dvd.iso /mnt/ISO1/

3] made a local repo in /etc/yum.repos.d

4] yum clean all

5] dnf repolist

6] yum upgrade

7] systemctl reboot

 

 

EmanuelHaine
Flight Engineer
Flight Engineer
  • 1,967 Views

@NavinF 

 

If you have a similar system with Internet access, you can do the following:

yum update --downloadonly --downloaddir=<dir>

cd <dir>

yum install *.rpm

 

I highly recomment you do it in a test environment before and also remember to take a snapshot before updating.

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