[Bug 1617345] Re: package upgrade broken for multipath system, specifically ppc64el

[Stefan Bader]

I was able to do a quick glance on the affected host. So the problem is not the
new version of grub-ieee1275 and more that there is a new version. IOW something
is causing something like dpkg-reconfigure grub-ieee1275 to run. I have not
figured out what exactly is done but both

- grub-install
- grub-install /dev/mapper/mpath0-part1

would work. However dpkg-reconfigure runs in a way that tries to directly access
one of the multipath path devices and returns an error.
So the question is somehow whether its possible to prevent dpkg-reconfigure from
what it is doing under the hoods...

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Title:
  package upgrade broken for multipath system, specifically ppc64el

Status in grub package in Ubuntu:
  New

Bug description:
  Setting up grub2-common (2.02~beta2-9ubuntu1.12) ...
  Setting up grub-ieee1275-bin (2.02~beta2-9ubuntu1.12) ...
  Setting up grub-ieee1275 (2.02~beta2-9ubuntu1.12) ...
  device-mapper: deps ioctl on 1IBM\x20\x20\x20\x20\x20IPR-0\x20\x20\x205EC33900000000A0 failed: No such device or address
  device-mapper: deps ioctl on 1IBM\x20\x20\x20\x20\x20IPR-0\x20\x20\x205EC33900000000C0 failed: No such device or address
  device-mapper: deps ioctl on 1IBM\x20\x20\x20\x20\x20IPR-0\x20\x20\x205EC3390000000020 failed: No such device or address
  device-mapper: deps ioctl on 1IBM\x20\x20\x20\x20\x20IPR-0\x20\x20\x205EC3390000000040 failed: No such device or address
  device-mapper: deps ioctl on 1IBM\x20\x20\x20\x20\x20IPR-0\x20\x20\x205EC3390000000060 failed: No such device or address
  Installing for powerpc-ieee1275 platform.
  grub-install: error: cannot find a GRUB drive for /dev/sda1.  Check your device.map.
  dpkg: error processing package grub-ieee1275 (--configure):
   subprocess installed post-installation script returned error exit status 1
  Processing triggers for libc-bin (2.19-0ubuntu6.9) ...
  Errors were encountered while processing:
   grub-ieee1275
  E: Sub-process /usr/bin/dpkg returned an error code (1)

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