Checking Whether a Private Image Needs to be Optimized

Procedure

1. Check whether VirtIO drivers have been installed.
   • CentOS/EulerOS

     For initramfs, run the following command:

     lsinitrd /boot/initramfs-`uname -r`.img | grep virtio

     For initrd, run the following command:

     lsinitrd /boot/initrd-`uname -r` | grep virtio

   • Ubuntu/Debian

     lsinitramfs /boot/initrd.img-`uname -r` |grep virtio

   • SUSE/openSUSE
     • SUSE 12 SP1/openSUSE 13 or earlier:

       lsinitrd /boot/initrd-`uname -r` | grep virtio

     • SUSE 12 SP1 or later than SUSE 12 SP1/openSUSE 13:

       For initramfs, run the following command:

       lsinitrd /boot/initramfs-`uname -r`.img | grep virtio

       For initrd, run the following command:

       lsinitrd /boot/initrd-`uname -r` | grep virtio

   If virtio is displayed, VirtIO drivers have been installed. For more information, see Creating a Linux System Disk Image from an External Image File.

   

   Otherwise, VirtIO drivers have not been installed. Optimize the private image as instructed in Process.