Data Center RUM Documentation

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Keep your Linux up-to-date at all times. We strongly recommend a full update to the latest supported release. This way, you keep your machine secure and improve its stability and performance.

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An upgrade problem may occur as a result of the Red Hat Enterprise Linux bug (2592561) in the upgrade from release 7.2 to 7.3. For more information, see RHEL 7.2 to 7.3 upgrade known issue.

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Caused by Red Hat Enterprise Linux bug (82203), upgrading kernel from versions earlier than 3.10.0-327.28.2 may cause DC RUM licenses to become invalid, in which case you will have to requestnew license(s).


If you can’t update the whole system, the minimum you have to do is to make sure your kernel is updated to the version required.

Schedule your system updates together with the DC RUM update. This way you stop the AMD monitoring once for both operations.


Before you update your Linux

  1. Check the current kernel version on your AMD:

  2. Review the RHEL OS and supported kernel versions in DC RUM to learn the supported releases. 

    We don't always support the latest available kernel. In case you need to install a newer kernel, get in touch with the support team first.

  3. Download the DC RUM AMD software compatible with the target Linux release. 
  4. Stop AMD before you start the system update. Use:

  5. Make sure you log on to the system as a user with root privileges. 

Updating entire Red Hat Enterprise Linux OS release 6 or 7

The online update is the easiest method to update your Linux.

However, if you machine has no connection to Red Hat Network, you can perform an offline update using the latest version Red Hat disk (iso).

RHEL OS online update requirements

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To update Red Hat Enterprise Linux using the online service, the Linux deployment must be registered with Red Hat Network. To check whether your Red Hat Enterprise Linux is registered, execute the following command at the prompt:

If your Status is not Subscribed, register your Red Hat Enterprise Linux on the Red Hat Network:
(Type the entire command in one line)

Online updateOffline update

Once subscribed, use the following command to update the operating system:

Optionally, you can use a parameter -y to automatically begin updating and installing updates.

To install a specific package, such as vsftpd, use the following command:

To update a specific package, such as bind, use the following command:

createrepo

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The createrepo is an optional package and is not installed by default.
To run this procedure successfully, you must install createrepo manually using the Red Hat Enterprise Linux installation disc.
For example:

  1. Download the ISO file for the latest release of your RHEL version and copy it to the AMD.
  2. Create directories and mount the RHEL ISO file.

    Where the <iso-name> is the ISO filename.

  3. Create a repository and clean all cached files from any enabled repository.

  4. Create a repo file.

  5. Type in the following entry in the rhel-local.repo file and press <CTRL+D> to save and exit.

  6. Update the operating system:

    Option: use parameter -y  to automatically begin updating and installing updates.

  7. Reboot the AMD.

Custom driver recompile

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The first boot after the RHEL OS update will recompile the AMD custom drivers to provide the best compatibility with the new RHEL OS kernel.

Updating only Linux kernel on Red Hat Enterprise Linux OS release 6 or 7

Updating Linux kernel

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Whenever possible, use either the  yum or PackageKit package manager to install a new kernel. Since yum always installs a new, there is no distinction between installing and upgrading a kernel package. Upgrading kernel would replace the current one, and if the upgraded kernel experiences problems, your system could potentially be unable to boot. As a result, when using RPM installation, it is important to use the rpm -i kernel command (which installs a new kernel) instead of rpm -u kernel (which replaces the current kernel).

To update the kernel:

Online updateOffline update

Log in as root and execute the yum update kernel command:

Do not reboot RHEL OS at the end of kernel update.

 

  1. Create a local repository using the Offline update procedure.
  2. Download the official ISO distribution containing the kernel version that you wish to install.
    See OS and SQL supported versions in DC RUM.
  3. Copy and mount the ISO file on the AMD.
    The mounted ISO becomes part of a local repository.
  4. Execute the yum update kernel command:

    The system will use the local repository (downloaded and mounted ISO file) to install the new kernel and any required dependencies.

  5. Do not reboot RHEL OS at the end of kernel update.

Custom driver recompile

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The first boot after the RHEL OS update will recompile the AMD custom drivers to provide the best compatibility with the new RHEL OS kernel.

 

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