[Bug 1926107] Re: After LTS upgrade to 20.04 mdadm init.d are all broken links

[A]

** Summary changed:

- After LSB upgrade to 20.04 mdadm init.d are all broken links
+ After LTS upgrade to 20.04 mdadm init.d are all broken links

** Description changed:

- Upgraded a number of servers (more than 30) from various LSB versions to LSB 20.04
+ Upgraded a number of servers (more than 30) from various LTS versions to LTS 20.04
  In each case that uses mdadm, all links for mdadm in /etc/rcX.d/*mdadm* are broken links.
  
  Every upgraded server using mdadm matches the issue exactly, but choosing one server:
  DISTRIB_ID=Ubuntu
  DISTRIB_RELEASE=20.04
  DISTRIB_CODENAME=focal
  DISTRIB_DESCRIPTION="Ubuntu 20.04.2 LTS"
  
  mdadm:
-   Installed: 4.1-5ubuntu1.2
+   Installed: 4.1-5ubuntu1.2
  
  Easiest way to see the issue is to type:
  
  # ls -lasd `find /etc | grep mdadm`
  4 -rw-r--r-- 1 root root  831 Dec 15 22:36 /etc/default/mdadm
  4 -rw-r--r-- 1 root root 3426 Feb 28  2014 /etc/logcheck/ignore.d.server/mdadm
  4 -rw-r--r-- 1 root root  411 Feb 28  2014 /etc/logcheck/violations.d/mdadm
  4 drwxr-xr-x 2 root root 4096 Dec 15 22:36 /etc/mdadm
  4 -rw-r--r-- 1 root root  982 Dec 15 22:36 /etc/mdadm/mdadm.conf
  4 -rw-r--r-- 1 root root  379 Jan 15  2020 /etc/modprobe.d/mdadm.conf
  0 lrwxrwxrwx 1 root root   15 Jul  3  2016 /etc/rc0.d/K01mdadm -> ../init.d/mdadm
  0 lrwxrwxrwx 1 root root   24 Dec 15 22:11 /etc/rc0.d/K05mdadm-waitidle -> ../init.d/mdadm-waitidle
  0 lrwxrwxrwx 1 root root   15 Jul  3  2016 /etc/rc1.d/K01mdadm -> ../init.d/mdadm
  0 lrwxrwxrwx 1 root root   15 Dec 15 22:09 /etc/rc2.d/S03mdadm -> ../init.d/mdadm
  0 lrwxrwxrwx 1 root root   15 Dec 15 22:09 /etc/rc3.d/S03mdadm -> ../init.d/mdadm
  0 lrwxrwxrwx 1 root root   15 Dec 15 22:09 /etc/rc4.d/S03mdadm -> ../init.d/mdadm
  0 lrwxrwxrwx 1 root root   15 Dec 15 22:09 /etc/rc5.d/S03mdadm -> ../init.d/mdadm
  0 lrwxrwxrwx 1 root root   15 Jul  3  2016 /etc/rc6.d/K01mdadm -> ../init.d/mdadm
  0 lrwxrwxrwx 1 root root   24 Dec 15 22:11 /etc/rc6.d/K05mdadm-waitidle -> ../init.d/mdadm-waitidle
  
  Since init.d/mdadm and init.d/mdadm-waitidle don't exist, all the /etc/rcX.d/*mdadm* links are broken links
  - and in a colour terminal are all highlighted distinctly
  
  All systems boot successfully, so I'm not sure if it is simply a cleanup
  issue during upgrade from 18.04 to 20.04, or if the files should exist?
  
  However, a previous version desktop, which is:
  DISTRIB_ID=Ubuntu
  DISTRIB_RELEASE=18.04
  DISTRIB_CODENAME=bionic
  DISTRIB_DESCRIPTION="Ubuntu 18.04.2 LTS"
  
  has init.d/mdadm and init.d/mdadm-waitidle thus they aren't broken links

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https://bugs.launchpad.net/bugs/1926107

Title:
  After LTS upgrade to 20.04 mdadm init.d are all broken links

Status in mdadm package in Ubuntu:
  New

Bug description:
  Upgraded a number of servers (more than 30) from various LTS versions to LTS 20.04
  In each case that uses mdadm, all links for mdadm in /etc/rcX.d/*mdadm* are broken links.

  Every upgraded server using mdadm matches the issue exactly, but choosing one server:
  DISTRIB_ID=Ubuntu
  DISTRIB_RELEASE=20.04
  DISTRIB_CODENAME=focal
  DISTRIB_DESCRIPTION="Ubuntu 20.04.2 LTS"

  mdadm:
    Installed: 4.1-5ubuntu1.2

  Easiest way to see the issue is to type:

  # ls -lasd `find /etc | grep mdadm`
  4 -rw-r--r-- 1 root root  831 Dec 15 22:36 /etc/default/mdadm
  4 -rw-r--r-- 1 root root 3426 Feb 28  2014 /etc/logcheck/ignore.d.server/mdadm
  4 -rw-r--r-- 1 root root  411 Feb 28  2014 /etc/logcheck/violations.d/mdadm
  4 drwxr-xr-x 2 root root 4096 Dec 15 22:36 /etc/mdadm
  4 -rw-r--r-- 1 root root  982 Dec 15 22:36 /etc/mdadm/mdadm.conf
  4 -rw-r--r-- 1 root root  379 Jan 15  2020 /etc/modprobe.d/mdadm.conf
  0 lrwxrwxrwx 1 root root   15 Jul  3  2016 /etc/rc0.d/K01mdadm -> ../init.d/mdadm
  0 lrwxrwxrwx 1 root root   24 Dec 15 22:11 /etc/rc0.d/K05mdadm-waitidle -> ../init.d/mdadm-waitidle
  0 lrwxrwxrwx 1 root root   15 Jul  3  2016 /etc/rc1.d/K01mdadm -> ../init.d/mdadm
  0 lrwxrwxrwx 1 root root   15 Dec 15 22:09 /etc/rc2.d/S03mdadm -> ../init.d/mdadm
  0 lrwxrwxrwx 1 root root   15 Dec 15 22:09 /etc/rc3.d/S03mdadm -> ../init.d/mdadm
  0 lrwxrwxrwx 1 root root   15 Dec 15 22:09 /etc/rc4.d/S03mdadm -> ../init.d/mdadm
  0 lrwxrwxrwx 1 root root   15 Dec 15 22:09 /etc/rc5.d/S03mdadm -> ../init.d/mdadm
  0 lrwxrwxrwx 1 root root   15 Jul  3  2016 /etc/rc6.d/K01mdadm -> ../init.d/mdadm
  0 lrwxrwxrwx 1 root root   24 Dec 15 22:11 /etc/rc6.d/K05mdadm-waitidle -> ../init.d/mdadm-waitidle

  Since init.d/mdadm and init.d/mdadm-waitidle don't exist, all the /etc/rcX.d/*mdadm* links are broken links
  - and in a colour terminal are all highlighted distinctly

  All systems boot successfully, so I'm not sure if it is simply a
  cleanup issue during upgrade from 18.04 to 20.04, or if the files
  should exist?

  However, a previous version desktop, which is:
  DISTRIB_ID=Ubuntu
  DISTRIB_RELEASE=18.04
  DISTRIB_CODENAME=bionic
  DISTRIB_DESCRIPTION="Ubuntu 18.04.2 LTS"

  has init.d/mdadm and init.d/mdadm-waitidle thus they aren't broken
  links

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