[Bug 1503286] Re: ISST-LTE: Boot of Ubuntu15.10 lpar fails: "mounting /dev/sdn2 on /root failed: Device or resource busy" [multipath]

[Mauricio Faria de Oliveira]

This is a patch for multipath-tools-boot to install a /scripts/local-premount/multipath script (based on the btrfs script).
It just runs "udevadm settle --timeout 121" (timeout value taken from udev initramfs scripts).

This is supposed to ensure that by the time local_mount_root() calls
resolve_device(), the multipath udev rules are finished, thus the
/dev/disk/by-uuid/ symlinks are updated/pointing to multipath devices,
and $ROOT will be set to a multipath device (vs. an individual path).

** Package changed: initramfs-tools (Ubuntu) => multipath-tools (Ubuntu)

** Patch added: "multipath-tools_premount-udev-settle.debdiff"
   https://bugs.launchpad.net/ubuntu/+source/multipath-tools/+bug/1503286/+attachment/4486173/+files/multipath-tools_premount-udev-settle.debdiff

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https://bugs.launchpad.net/bugs/1503286

Title:
  ISST-LTE: Boot of Ubuntu15.10 lpar fails: "mounting /dev/sdn2 on /root
  failed: Device or resource busy" [multipath]

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