Bhyve - access to local storage

[mpfusion]

Hi,

I need to create a VM with access to a directory on the server that is currently shared via NFS. I can shutdown all clients or disable NFS if that poses a problem. In the GUI I can only select a ZVOL, but the data is not stored in a ZVOL. So this leaves only NFS as far as I can see, but I cannot use NFS. Is there another possibility to access a directory from the TrueNAS server within a (Debian) bhyve VM (that is *not* NFS)? Like 9P?

This is not supposed to be a good and reliable solution. I need access to the data, run a program on the Debian VM and then I can delete the VM again.

TrueNAS-13.0-U5

 

[Patrick M. Hausen]

Why can't you run the program (what is it?) in a jail on FreeBSD? Jails have full access to local files, VMs don't. NFS or SMB are the only options.

 

[mpfusion]

Why can't you run the program (what is it?) in a jail on FreeBSD?

The program is usrmerge. I'm not sure if it exists on FreeBSD and if it's Debian specific.

TrueNAS serves a directory of root directories to Debian machines that mount the root file system via NFS. But usrmerge doesn't support NFS and just quits. So the idea was to run a Debian VM with bhyve. Mount the root FS in the VM. Chroot and run usrmerge. Rinse and repeat for each host.

 

[Patrick M. Hausen]

I'd check first if usrmerge is not in fact a bash script or written in some other scripting language.

 

[mpfusion]

I'd check first if usrmerge is not in fact a bash script or written in some other scripting language.

It looks like perl:
#!/usr/bin/perl # vim: shiftwidth=4 tabstop=4 # # Copyright 2014-2022 by Marco d'Itri <md@Linux.IT> # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2 of the License, or # (at your option) any later version. use warnings; use strict; use autodie; use v5.16; use File::Find::Rule; use Cwd qw(abs_path); use Errno; my $Debug = 0; my $Program_RC = 0; my $Is_Hurd = is_hurd();

 

[Patrick M. Hausen]

Copy an instance of the data in question into a jail, try the script inside a jail in which ju installed perl, nothing can happen to your NAS ...

 

[mpfusion]

Copy an instance of the data in question into a jail, try the script inside a jail in which ju installed perl, nothing can happen to your NAS ...

I'll try that.