guestfs-recipes (1) Linux Manual Page

NAME

guestfs-recipes – libguestfs, guestfish and virt tools recipes

DESCRIPTION

This page contains recipes for and links to things you can do using libguestfs, guestfish(1) and the virt tools.

Access a remote disk image using guestfish

If the disk image is on a remote server which is accessible using SSH, HTTP, FTP, NBD, iSCSI, or similar, then you can open it directly. See “ADDING REMOTE STORAGE” in guestfish(1) for several examples. This requires libguestfs ≥ 1.22 and qemu ≥ 1.5.

Audit a virtual machine for setuid files

See: “EXAMPLES” in virt-ls(1).

Audit a virtual machine for vulnerabilities and security problems

See: https://rwmj.wordpress.com/2013/05/16/scanning-offline-guests-using-openscap-and-guestmount/#content

Change the background image in a Windows XP VM

The links below explain how to use guestfish(1) to change the background image for a user of a Windows XP VM. Unfortunately the technique appears to be substantially different for each version of Windows.

https://lists.fedoraproject.org/pipermail/virt/2011-May/002655.html https://lists.fedoraproject.org/pipermail/virt/2011-May/002658.html

Checksum a file or device within a disk image

To checksum a whole device, or a partition, LV etc within a disk image:

 guestfish --ro -a disk.img run : checksum-device md5 /dev/sda1

Replace "md5" with the type of checksum you want. See “guestfs_checksum_device” in guestfs(3) for a list of supported types.

/dev/sda1 means “the first partition”. You could use /dev/sda to checksum the whole disk image, or the name of a logical volume or RAID device.

To checksum a single file:

 guestfish --ro -a disk.img -i checksum sha256 /etc/passwd

or for a Windows guest:

 guestfish --ro -a disk.img -i \

   checksum sha256 'win:\windows\system32