===== zvol timeout =====

  systemctl restart systemd-udevd; udevadm trigger; udevadm settle

===== Démarrer conteneur LXC en mode debug / console =====

  lxc-start -lDEBUG -o /tmp/112.log -F -n 112

===== Serial console =====

<code>
# open  /etc/pve/qemu-server/101.conf and add the following parameter at the end of file
serial0: socket
</code>

<code>
qm set 101 -serial0 socket
</code>

=== On guest ===

<code>
dmesg | grep ttyS
[    0.457814] 00:0a: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
</code>

<code>
# in /etc/default/grub change the GRUB_CMDLINE_LINUX parameter to
GRUB_CMDLINE_LINUX="console=tty0 console=ttyS0,115200n8"
</code>

<code>
update-grub (debian)
grub2-mkconfig -o /boot/grub2/grub.cfg (rhel)
</code>

<code>
systemctl enable --now serial-getty@ttyS0.service
</code>

=== connect to console ===

<code>
qm terminal <VMiD> 
</code>