Vathsa's- Linux - SysOps and DevOps

            Local Yum Repository for Oracle Linux 8   Configure Server Repositories Repository Creation Resync the Repository Setup the HTTP Server Point Servers to the Local Repository Make sure the repositories of interest are available on the server, # vim oel8-tmp.repo [ol8_baseos_latest] name=Oracle Linux $releasever BaseOS ($basearch) baseurl=https://yum.oracle.com/repo/OracleLinux/OL8/baseos/latest/$basearch gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-oracle gpgcheck=1 enabled=1 Install OEL8 related repo files from below command # dnf reinstall oraclelinux-release-el8 # dnf clean packages # dnf install oracle-epel-release-el8.x86_64 oracle-gluster-release-el8.x86_64 oracle-spacewalk-client-release-el8.x86_64 oraclelinux-developer-release-el8.x86_64 oraclelinux-release-el8.x86_64 # dnf install oracle-epel-release-el8.x86_64 oracle-gluster-release-el8.x86_64 oracle-spacewa...

 Mount a host file system inside a KVM virtual machine       To mount a host file system inside a KVM virtual machine, the modern and most efficient method is using virtio-fs . Alternatively, for older systems, the 9p (VirtFS) protocol can be used.   Method 1: Using virtio-fs (Recommended)   Virtio-fs provides near-native performance by leveraging shared memory between the host and the guest.   Configure Host Shared Memory: Open Virt-Manager . Go to Memory settings and check Enable shared memory . Add Filesystem Hardware: Click Add Hardware > Filesystem . Driver: Select virtiofs . Source path: Enter the directory on your host (e.g., /home/user/shared ). Target path: Enter a "mount tag" (a label like myshare ). Mount Inside the Guest VM: Create a mount point: sudo mkdir /mnt/shared Mount the filesystem: sudo mount -t virtiofs myshare /mnt/shared . Persistent Mount (Optional): Add this line to /etc/fstab in the guest: myshare /mnt/shared virtio...

    How to create RHEL 7/8/9 repositories in a single RHEL 9 environment using Podman?    Environment Red Hat Enterprise Linux Server release 7/8/9 Podman Issue Normally, it is not possible to create multiple RHEL repository servers for versions 7, 8, and 9 on a single RHEL server. Resolution There are various methods to configure RHEL repositories for multiple releases, such as 7 and 8, on a single RHEL 9 server using Podman. Please find below sample plans for this request. Feel free to modify them as per your requirements. RHEL 7 Repository: The RHEL 7 repository should be utilized with a UBI7 container. RHEL 8 Repository: The RHEL 8 repository should be utilized with a UBI8 container. RHEL 9 Repository: The RHEL 9 repository should be utilized with a UBI9 container. Example: Create a containe file      $ cat ubi7containerfile      FROM ubi7/ubi:latest    ...