wg-quick "wait: pid 9185 is not a child if this shell" on Debian 8.11

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All work on Debian 9+ without problem with identical setting and install methods.

When I try to start service

systemctl start wg-quick@wg0

It shows error in journal:

wg-quick[9290]: [#] ip link add wg0 type wireguard
wg-quick[9290]: [#] wg setconf wg0 /dev/fd/63
wg-quick[9290]: /usr/bin/wg-quick: line 251: wait: pid 9308 is not a child ...hell
wg-quick[9290]: [#] ip link delete dev wg0

Also it shows similar error when you start it so (also exec script wg-qucik):

wg-quick ip wg0

This problem with wait. Additionally I installed clear Debian 8.11 to VirtualBox. There is the same error. But on Debian 9 it works correctly.

debian bash
1 Answers

I found a commit cancellation

I think problem in bash < 4.4 because on Debian 8 version - 4.3.30, on Debian 9 - 4.4.12

For update run by root:

WGQUICKPATH=$(which wg-quick)
mv "$WGQUICKPATH" "$WGQUICKPATH.bak"
wget -O "$WGQUICKPATH" "https://raw.githubusercontent.com/WireGuard/wireguard-tools/master/src/wg-quick/linux.bash"
chmod +x "$WGQUICKPATH"
user_112465330
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