Comment 3 for bug 1928781

thanks a lot. I try to reinstall microstack , I install it success.but can not init it any more ...
it always show some errors during init
.just like
Traceback (most recent call last):
  File "/snap/microstack/233/bin/microstack", line 11, in <module>
    load_entry_point('microstack==0.0.1', 'console_scripts', 'microstack')()
  File "/snap/microstack/233/lib/python3.8/site-packages/microstack/main.py", line 44, in main
    cmd()
  File "/snap/microstack/233/lib/python3.8/site-packages/init/main.py", line 60, in wrapper
    return func(*args, **kwargs)
  File "/snap/microstack/233/lib/python3.8/site-packages/init/main.py", line 227, in init
    question.ask()
  File "/snap/microstack/233/lib/python3.8/site-packages/init/questions/question.py", line 210, in ask
    self.yes(awr)
  File "/snap/microstack/233/lib/python3.8/site-packages/init/questions/__init__.py", line 719, in yes
    enable('setup-lvm-loopdev')
  File "/snap/microstack/233/lib/python3.8/site-packages/init/shell.py", line 162, in enable
    check('snapctl', 'start', 'microstack.{}'.format(service), '--enable')
  File "/snap/microstack/233/lib/python3.8/site-packages/init/shell.py", line 69, in check
    raise subprocess.CalledProcessError(proc.returncode, " ".join(args))
subprocess.CalledProcessError: Command 'snapctl start microstack.setup-lvm-loopdev --enable' returned non-zero exit status 1.

or

Traceback (most recent call last):
  File "/snap/microstack/233/bin/microstack", line 11, in <module>
    load_entry_point('microstack==0.0.1', 'console_scripts', 'microstack')()
  File "/snap/microstack/233/lib/python3.8/site-packages/microstack/main.py", line 44, in main
    cmd()
  File "/snap/microstack/233/lib/python3.8/site-packages/init/main.py", line 60, in wrapper
    return func(*args, **kwargs)
  File "/snap/microstack/233/lib/python3.8/site-packages/init/main.py", line 227, in init
    question.ask()
  File "/snap/microstack/233/lib/python3.8/site-packages/init/questions/question.py", line 210, in ask
    self.yes(awr)
  File "/snap/microstack/233/lib/python3.8/site-packages/init/questions/__init__.py", line 189, in yes
    enable('ovs-vswitchd')
  File "/snap/microstack/233/lib/python3.8/site-packages/init/shell.py", line 162, in enable
    check('snapctl', 'start', 'microstack.{}'.format(service), '--enable')
  File "/snap/microstack/233/lib/python3.8/site-packages/init/shell.py", line 69, in check
    raise subprocess.CalledProcessError(proc.returncode, " ".join(args))
subprocess.CalledProcessError: Command 'snapctl start microstack.ovs-vswitchd --enable' returned non-zero exit status 1.
adn so on ....

My command is
sudo microstack init --auto --control --setup-loop-based-cinder-lvm-backend --loop-device-file-size 50

my operation is
1. sudo apt autoremove --purge snapd (I run sudo snap remove microstack not works well, so I remove all..)
2. sudo apt install snapd
3. sudo snap install --beta microstack
4. sudo microstack init --auto --control --setup-loop-based-cinder-lvm-backend --loop-device-file-size 50
5. I got the error like subprocess.CalledProcessError: Command 'snapctl start microstack.XXXX --enable' returned non-zero exit status 1.