Beka Mamardashvili beka

## centos7_kernel_update.md

      
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                beka
                / centos7_kernel_update.md
            
            
              Created
              December 18, 2021 11:11
                — forked from pgporada/centos7_kernel_update.md
            
              
                Upgrade Kernel on Centos7 via ELRepo
              
          
    Install the ELRepo and GPG key

rpm --import https://www.elrepo.org/RPM-GPG-KEY-elrepo.org
yum install -y http://www.elrepo.org/elrepo-release-7.0-2.el7.elrepo.noarch.rpm
Enable kernel updates from elrepo

yum-config-manager --enable elrepo-kernel

  
## mount_qcow2.md

      
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                beka
                / mount_qcow2.md
            
            
              Created
              December 16, 2021 17:22
                — forked from shamil/mount_qcow2.md
            
              
                How to mount a qcow2 disk image
              
          
    How to mount a qcow2 disk image

This is a quick guide to mounting a qcow2 disk images on your host server. This is useful to reset passwords,
edit files, or recover something without the virtual machine running.
Step 1 - Enable NBD on the Host
modprobe nbd max_part=8