Comment 15 for bug 1546049

Instructions how-to build new bootstrap image with customized LVM config in order to ignore i/o hints.

1) download lvm2 package for trusty to obtain default lvm.conf

http://packages.ubuntu.com/trusty/lvm2

2) extract etc/lvm/lvm.conf, open it, find and change

  data_alignment_detection = 1

to

  data_alignment_detection = 0

3) recreate directory structure for lvm confg
$ mkdir -p override_lvm/etc/lvm
$ cp <updated lvm.conf> override_lvm/etc/lvm
4) rebuild and active new bootstrap image:

$ fuel-bootstrap --verbose --debug build --extra-dir override_lvm/ --label lvm_without_data_alignment --activate

5) remove and add nodes, so they will be loaded into that updated bootstrap image.