kill all proceses inside all l3-agent's net.namespaces,

that using ip protocol. When l3 agent start/stop.
Also remove unneeded namespaces.

Change-Id: I7e5203f6cec646a8b70609f2bf3b785066068aeb
Closes-Bug: #1310926
Fix searching for cciss substring error

find() may return 0 if the string starts with "cciss"

Related-bug: #1291692
Change-Id: Iab25baa22e33274513f68ada64ba24eeca9c576e
Merge "Fix searching for cciss substring error" into stable/4.1
Made mkfs arguments optional and added rootdelay

The problem is that we have been creating file systems with -f flag
while it is suitable only for xfs, but not for any other file systems.
Another problem is that some hardware such as ancient Dell equipment
delays exposing raid volumes and grub usually fails not waiting for root
file system is available. rootdelay=90 allows to avoid that kind of
unexpected behaviour.

Backport to stable/4.1 includes a fix for a format string problem that
was present in the original commit merged to master.

Change-Id: I199077b4bf53fdcdc17a89fb4c8ad82bfd966a87
Co-Authored-By: Dmitry Borodaenko <dborodaenko@mirantis.com>
Merge "Made mkfs arguments optional and added rootdelay" into stable/4.1
Mount target when setting partition GUID

sgdisk is only installed in the target therefore when we run sgdisk
it must be run in-target. For it to succeed the target must be mounted
beforehand.

Change-Id: I952b82c5dba4ab0b1cb924bb1f18f685cc96a51a
Closes-bug: #1312441