Comment 15 for bug 2056187

[ Impact ]

 * MAAS cannot PXE-boot a machine that has iSCSI disks

 * Focal is the default Ubuntu distribution deployed by MAAS, so we should
   back-port this to ensure it works out-of-the-box.

[ Test Plan ]

 * reproducing this issue requires a machine with iSCSI disks (Cisco UCS Manager
 in the original report), and a MAAS controller (3.4 or better)

 * the issue can be observed by simply enlisting the machine in MAAS. It will
 fail to boot due to the missing BOOTIF configuration.

[ Where problems could occur ]

 * the problematic code was an attempt to fix LP#2037202, so we should watch out
 for regressions.

[ Other Info ]

 *