[Bug 1944027] [NEW] On Pi 4b running Ubuntu 21.04 and pi-bluetooth warnings about substitution syntax appear at boot

[Mike Silva]

Public bug reported:

Description:
/usr/lib/udev/rules.d/90-pi-bluetooth.rules contains substitution syntax that dash doesn't like.

Result:
Warning output from journalctl -b:
systemd-udevd[976]: /usr/lib/udev/rules.d/90-pi-bluetooth.rules:14 Invalid value "/bin/sh -c 'ALIASES=/proc/device-tree/aliases; if cmp -s $ALIASES/uart0 $ALIASES/serial0; then echo 0;elif cmp -s $ALIASES/uart0 $ALIASES/serial1; then echo 1; else exit 1; fi'" for PROGRAM (char 58: invalid substitution type), ignoring, but please fix it.

systemd-udevd[976]: /usr/lib/udev/rules.d/90-pi-bluetooth.rules:27
Invalid value "/bin/sh -c 'ALIASES=/proc/device-tree/aliases; if [ -e
/dev/ttyAMA0 ]; then exit 1; elif cmp -s $ALIASES/uart0
$ALIASES/serial0; then echo 0;elif cmp -s $ALIASES/uart0
$ALIASES/serial1; then echo 1; else exit 1; fi'" for PROGRAM (char 97:
invalid substitution type), ignoring, but please fix it.

systemd-udevd[976]: /usr/lib/udev/rules.d/90-pi-bluetooth.rules:38
Invalid value "/bin/sh -c 'ALIASES=/proc/device-tree/aliases; if cmp -s
$ALIASES/uart1 $ALIASES/serial0; then echo 0; elif cmp -s $ALIASES/uart1
$ALIASES/serial1; then echo 1; else exit 1; fi '" for PROGRAM (char 58:
invalid substitution type), ignoring, but please fix it.

Expected Result:
No warnings

Notes:
- This is on Ubuntu 21.04. With pi-bluetooth/hirsute,now 0.1.15ubuntu2 arm64. However, these warnings have been present for some time, on earlier versions of the package.

** Affects: pi-bluetooth (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1944027

Title:
  On Pi 4b running Ubuntu 21.04 and pi-bluetooth warnings about
  substitution syntax appear at boot

Status in pi-bluetooth package in Ubuntu:
  New

Bug description:
  Description:
  /usr/lib/udev/rules.d/90-pi-bluetooth.rules contains substitution syntax that dash doesn't like.

  Result:
  Warning output from journalctl -b:
  systemd-udevd[976]: /usr/lib/udev/rules.d/90-pi-bluetooth.rules:14 Invalid value "/bin/sh -c 'ALIASES=/proc/device-tree/aliases; if cmp -s $ALIASES/uart0 $ALIASES/serial0; then echo 0;elif cmp -s $ALIASES/uart0 $ALIASES/serial1; then echo 1; else exit 1; fi'" for PROGRAM (char 58: invalid substitution type), ignoring, but please fix it.

  systemd-udevd[976]: /usr/lib/udev/rules.d/90-pi-bluetooth.rules:27
  Invalid value "/bin/sh -c 'ALIASES=/proc/device-tree/aliases; if [ -e
  /dev/ttyAMA0 ]; then exit 1; elif cmp -s $ALIASES/uart0
  $ALIASES/serial0; then echo 0;elif cmp -s $ALIASES/uart0
  $ALIASES/serial1; then echo 1; else exit 1; fi'" for PROGRAM (char 97:
  invalid substitution type), ignoring, but please fix it.

  systemd-udevd[976]: /usr/lib/udev/rules.d/90-pi-bluetooth.rules:38
  Invalid value "/bin/sh -c 'ALIASES=/proc/device-tree/aliases; if cmp
  -s $ALIASES/uart1 $ALIASES/serial0; then echo 0; elif cmp -s
  $ALIASES/uart1 $ALIASES/serial1; then echo 1; else exit 1; fi '" for
  PROGRAM (char 58: invalid substitution type), ignoring, but please fix
  it.

  Expected Result:
  No warnings

  Notes:
  - This is on Ubuntu 21.04. With pi-bluetooth/hirsute,now 0.1.15ubuntu2 arm64. However, these warnings have been present for some time, on earlier versions of the package.

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