Vnx-modify-rootfs

Updating or modifying a VNX root filesystem

In order to update or modify a VNX root filesystem (rootfs from now on), you have two possible methods:

Start a virtual machine in direct mode

To start a virtual machine directly mounting a rootfs and having Internet connection, you can use vnx command with the following parameters:

vnx --modify_rootfs <rootfs_name>

being <rootfs_name> the rootfs filename.

• Using
• Creating a libvirt XML virtual machine definition (see examples in /usr/share/vnx/examples directory) and starting it using virsh:

virsh create rootfs_XXX.xml

and manually opening the console using:

virt-viewer <vmname>

being <vmname> the name assigned by libvirt to the virtual machine (you can get it with "virsh list" command).

• Once the virtual machine is started and you have access to the console, you can make the modifications desired.
• At the end, halt the virtual machine using the vnx_halt command. This will clean some log and history files, clean the apt cache and optionally leave a text message in /etc/vnx_rootfs_version describing the modifications done.

Updating VNXACE daemon

If you have a rootfs with the autoconfiguration and command execution daemon (ACE) already installed, you can use the autoupdate functionality to update the daemon to a newer version. Just follow this procedure:

Linux and FreeBSD

• Start the virtual machine with the following command line options:

vnx --modify-rootfs <rootfs_name> --update-aced -y

being <rootfs_name> the rootfs filename. This command will try to update the VNXACE daemon to the latest version automatically (-y option).

• If everything goes well, a message informing the new version installed will be shown in the virtual machine console before halting it.
• If the daemon is not updated automatically, you can do it manually from inside the virtual machine:
• Mounting the update disk:

mount /dev/sdb /mnt               # For Linux
mount -t msdosfs /dev/ad1 /mnt    # For FreeBSD

• Installing VNXACED:

perl /mnt/vnxaced-lf/install_vnxaced

Windows

To be completed

Olive

To be completed