What is kernel image? What is initrd image?¶

Abstract¶

On creating guest, you are asked to input the kernel image an initrd image.
We will introduce some examples below.

Kernel image¶

Kernel image is the image of Linux kernel, as you may guess.
On guest creation, kernel image will be used only for the first installation of the guest.

initrd image¶

initrd is the ram file sysmte which Linux temporally uses on boot.
On guest creation, initrd image will be used only when booted using the kernel image above.

Example¶

CentOS5.3¶

kernel image
http://<mirror server name>/Linux/centos/5.3/os/i386/images/xen/initrd.img

initrd image
http://<mirror server name>/Linux/centos/5.3/os/i386/images/xen/vmlinuz

Hints
Install image path used on guest installation:
http://<mirror server name>/Linux/centos/5.3/os/i386/

Fedora10¶

kernel image
http://<mirror server name>/Linux/fedora/releases/10/Fedora/i386/os/images/pxeboot/initrd-PAE.img

initrd image
http://<mirror server name>/Linux/fedora/releases/10/Fedora/i386/os/images/pxeboot/vmlinuz-PAE

Hints
Install image path used on guest installation:
http://<mirror server name>/Linux/fedora/releases/10/Fedora/i386/os/