Using bhyvectl --destroy In a Script
reddit / freebsd

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bawdyanarchist · 2022-01-04 23:30

I am trying to `bhyvectl --force-poweroff ; bhyvectl --destroy` in a
script. However, the behavior that I get in my xterm isn't ideal. The
script continues running, and even continues past `read` commands.
Meanwhile for about 10 seconds, I get repeated printing of the xterm
prompt. For example:
`root@mymachine:~ #`
`root@mymachine:~ #`
`root@mymachine:~ #`
`root@mymachine:~ #`
`...`

I need the `bhyvectl --destroy` command to finish running before
continuing, but I can't seem to find a way to make this happen. I
tried sending the process to the background with `&`. I also tried:
`csh -c 'bhyvectl --vm=usbvm --force-poweroff ; bhyvectl --vm=usbvm
--destroy' &`

If I launch a new xterm with:  `xterm -e csh -c 'bhyvectl --vm=usbvm
--force-poweroff ; bhyvectl --vm=usbvm --destroy; /bin/csh`  That
actually does work. However, I need this script to be generalizable to
people who might not be running X.

What can I do to cause bhyvectl to play inside of scripts properly?

*EDIT: So I ran this from a different TTY console (X non running on
that TTY), and everything ran fine. So this appears to be a problem
specifically running the command in xterm*

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[deleted] · 2022-01-05 03:39

[deleted]

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bawdyanarchist · 2022-01-05 17:15

I'm not sure why they deleted their comment here, but they posted this
thread yesterday. It was the solution I was looking for. Basically
avoids using `bhyvectl --destroy` entirely. I was having problems
using `bhyvectl --force-poweroff` when trying to re-boot a VM, but
using `pkill -f "bhyve: my_vm"` seems to be fine, and a much more
graceful way of doing it.

https://forums.freebsd.org/threads/graceful-shutdown-of-bhyve-
guests.80979/#post-518532