[Bug 672177] Re: libc6 upgrade causes umount to fail on shutdown because init cannot be restarted

[ingo]

Addition (works for me):

    /usr/bin/lsof -n | grep DEL > /lsof.out 2>&1
    sleep 15

greps all the open files/libs - if there are any - and writes the information to disk.
If there are none one just gets an error message that "could not write to ro filesystem".

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https://bugs.launchpad.net/bugs/672177

Title:
  libc6 upgrade causes umount to fail on shutdown because init cannot be
  restarted