Dell Poweredge T20 reboot instead of shutdown

Valerio Pachera

Active Member
Aug 19, 2016
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Hi, I already know this is neither a Proxmox nor Debian specific problem, but I wish to report it to help other users.
I have a Dell Poweredge T20 server and I noticed it to power-on automatically after issuing shutdown from Proxmox webui or by ssh.
I'm running latest proxmox 4 with kernel 4.4.49.

I replicated this behavior with a live cd (systemrescuecd; kernel 4.4..44).
With an older systemrescuecd (2.5.1; kernel 3.0.24), shutdown works properly.
 
I used the Kernel version: 4.13.13-6-pve

What I already tried
Code:
sudo nano /etc/default/grub

GRUB_CMDLINE_LINUX_DEFAULT="xhci_hcd.quirks=270336 quiet splash"

sudo update-grub

But it doesn't work so far. Any suggestions?