[Bug 1783994] Re: systemd spams log with "Failed to dissect: Input/output error" on systems with mmc

[Dan Streetman]

** Bug watch added: github.com/systemd/systemd/issues #5806
   https://github.com/systemd/systemd/issues/5806

** Also affects: systemd via
   https://github.com/systemd/systemd/issues/5806
   Importance: Unknown
       Status: Unknown

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Title:
  systemd spams log with "Failed to dissect: Input/output error" on
  systems with mmc

Status in systemd:
  Unknown
Status in systemd package in Ubuntu:
  Confirmed

Bug description:
  If a device has an mmc installed, systemd-gpt-auto-generator will fail because of "special partition" (rpmb, boot) and record a log message: 
  systemd-gpt-auto-generator[207]: Failed to dissect: Input/output error
  This issue was discussed here:  https://github.com/systemd/systemd/issues/5806
  and a fix is proposed for new systemd versions. Please include in bionic.

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