[Bug 1830169] Re: lvm udev rule fails to call systemd-run

[Dimitri John Ledkov]

On fresh disco and up installations this "just works" due to /usr-merge
by default.

On prior releases bin dir is configurable at lvm build time, which we
set to /bin (as that's where we want lvm2 utils to end up), but that's
not the location of systemd-run.

Needs a manual patch to lvm2, to support split-/usr systems (older
releases & upgraded systems)

** Package changed: systemd (Ubuntu) => lvm2 (Ubuntu)

** Also affects: lvm2 (Ubuntu Disco)
   Importance: Undecided
       Status: New

** Also affects: lvm2 (Ubuntu Xenial)
   Importance: Undecided
       Status: New

** Also affects: lvm2 (Ubuntu Eoan)
   Importance: Undecided
     Assignee: Skipper Bug Screeners (skipper-screen-team)
       Status: New

** Also affects: lvm2 (Ubuntu Bionic)
   Importance: Undecided
       Status: New

** Also affects: lvm2 (Ubuntu Cosmic)
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/1830169

Title:
  lvm udev rule fails to call systemd-run

Status in Ubuntu on IBM z Systems:
  Triaged
Status in lvm2 package in Ubuntu:
  New
Status in lvm2 source package in Xenial:
  New
Status in lvm2 source package in Bionic:
  New
Status in lvm2 source package in Cosmic:
  New
Status in lvm2 source package in Disco:
  New
Status in lvm2 source package in Eoan:
  New

Bug description:
  In /lib/udev/rules.d/69-lvm-metad.rules file, it calls /bin/systemd-run command during removal -------  
     ACTION!="remove", ENV{LVM_PV_GONE}=="1", RUN+="/bin/systemd-run /sbin/lvm pvscan --cache $major:$minor", GOTO="lvm_end"

  But /bin/systemd-run is not found,  in fact systemd-run is in /usr/bin
  /systemd-run.

  xxxxxxxxxx:~$ cat /etc/issue
  Ubuntu 18.04.2 LTS \n \l

  xxxxxxxxxx:~$ ls /bin/systemd-run
  ls: cannot access '/bin/systemd-run': No such file or directory

  xxxxxxxxxx:~$ ls /usr/bin/systemd-run
  /usr/bin/systemd-run

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