[Bug 1441930] Re: Fix handling of multipathed disks with 4k-sectors

[Mauricio Faria de Oliveira]

Back to comment #5.
If it's possible to install LVM on top of multipath, then I think the problem shall happen too, because then the first level of mapping is multipath on top of the underlying devices (4k sectors).

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https://bugs.launchpad.net/bugs/1441930

Title:
  Fix handling of multipathed disks with 4k-sectors

Status in multipath-tools package in Ubuntu:
  New

Bug description:
  The packages for libparted and kpartx don't have the patches for using
  multipath (actually device-mapper) on 4k-sector disks (generally: 'non
  512-byte sector disks')

  This causes the number of sectors of each device-mapper partition to be 1/8th (512/4096) of that expected.
  These 3 errors were identified:
  1) Partition sizes on multipath are 1/8th of the intended size
  2) The filesystem on the underlying device is not-accessible (only in the dm mapped device)
  3) grub-install fails w/ 'Unknown filesystem'

  The 2 patches attached contains upstream patches from parted and
  multipath-tools, and fix the issues (the installation finishes without
  errors and the system boots).

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