error while loading shared libraries: libusbguard.so.1

[TriplEight]

Even after sudo apt install --reinstall usbguard I'm getting

$ sudo usbguard list-devices                                                                                                                                                                                        
usbguard: error while loading shared libraries: libusbguard.so.1: cannot open shared object file: No such file or directory
$ sudo apt install --reinstall usbguard                                                                                                                                                                                    
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
0 upgraded, 0 newly installed, 1 reinstalled, 0 to remove and 0 not upgraded.
Need to get 140 kB of archives.
After this operation, 0 B of additional disk space will be used.
Get:1 http://de.archive.ubuntu.com/ubuntu hirsute/universe amd64 usbguard amd64 1.0.0+ds-2 [140 kB]
Fetched 140 kB in 0s (317 kB/s)
(Reading database ... 412074 files and directories currently installed.)
Preparing to unpack .../usbguard_1.0.0+ds-2_amd64.deb ...
Unpacking usbguard (1.0.0+ds-2) over (1.0.0+ds-2) ...
Setting up usbguard (1.0.0+ds-2) ...
usbguard-dbus.service is a disabled or a static unit not running, not starting it.
Processing triggers for dbus (1.12.20-1ubuntu3) ...
Processing triggers for man-db (2.9.4-2) ...
 $ sudo usbguard list-devices                                                                                                                                                                                           
usbguard: error while loading shared libraries: libusbguard.so.1: cannot open shared object file: No such file or directory

[brpatel12]

Having the same issue on Ubuntu 20.04

Update, looks like it works fine when called from the build directory, but not otherwise:

user@machine:~/usbguard-1.0.0$ ll usbguard
-rwxrwxr-x 1 user user 6266 Dec 20 14:39 usbguard*

user@machine:~/usbguard-1.0.0$ usbguard
usbguard: error while loading shared libraries: libusbguard.so.1: cannot open shared object file: No such file or directory

user@machine:~/usbguard-1.0.0$ ./usbguard
 Usage: usbguard [OPTIONS] <command> [COMMAND OPTIONS] ...

Tried building with:

./configure --with-crypto-library=sodium --with-bundled-catch --with-bundled-pegtl

# then
make
sudo make install
make check

# tried again with the following + the make steps
./configure --with-crypto-library=sodium --with-bundled-catch --with-bundled-pegtl --enable-static

[brpatel12]

@TriplEight

./configure LDFLAGS="-static" --with-crypto-library=sodium --with-bundled-catch --with-bundled-pegtl --enable-static
make
sudo make install

Update, no systemd unit without --enable-systemd during ./configure, also added --with-dbus

./configure --with-crypto-library=sodium --with-bundled-catch --with-bundled-pegtl --enable-systemd --with-dbus

But now same error as before:

usbguard: error while loading shared libraries: libusbguard.so.1: cannot open shared object file: No such file or directory

[pcraciunoiu]

Seeing this as well, works from build directory. It seems like libusbguard.so.1 is not where it's expected to be,

Without installing the apt package, I got this error trying to launch the build:

$ sudo ./usbguard list-devices
ERROR: IPC connect: service=usbguard: Connection refused

But if I sudo apt install usbguard to get the latest version the ./usbguard executable works. Pretty strange. Would be great to get some help here!

[Cropi]

Connection is mostly refused when the user/group you are using is not listed in either

• IPCAllowedGroups
• IPCAllowedUsers
• IPCAccessControlFiles

For additional information, see the usbguard-daemon.conf manual page, section IPC access control. Let me know if that helps.

Seeing this as well, works from build directory. It seems like libusbguard.so.1 is not where it's expected to be,

Without installing the apt package, I got this error trying to launch the build:

$ sudo ./usbguard list-devices
ERROR: IPC connect: service=usbguard: Connection refused

But if I sudo apt install usbguard to get the latest version the ./usbguard executable works. Pretty strange. Would be great to get some help here!

[pcraciunoiu]

Hey @Cropi thanks for your help.

That doesn't help. I tried creating those groups and adding root to it. Also looking in usbguard-daemon.conf in the cloned repo/build shows that root is listed as an allowed user anyway. But I get the same error.

[Cropi]

Hey @pcraciunoiu,

Please try to not mix the files built from sources and those installed through the distribution you are using. By default, sudo make install command installs all the necessary files to /usr/local, so your usbguard configuration files will be located inside this directory. However, I think the linker path is not updated after that(judging from the error report). It can be addressed by ldconfig /usr/local/lib/.

[pcraciunoiu]

@Cropi that fixes this error:

usbguard: error while loading shared libraries: libusbguard.so.1: cannot open shared object file: No such file or directory

However, the connection refused error remains. Now it happens consistently between the local usbguard (from the build) and the global one added by sudo make install:

➜  usbguard git:(b9ea78e) ✗ sudo ./usbguard list-devices
ERROR: IPC connect: service=usbguard: Connection refused
➜  usbguard git:(b9ea78e) ✗ sudo usbguard list-devices  
ERROR: IPC connect: service=usbguard: Connection refused

Any ideas? The linux groups for those IPC permissions are not created automatically by the build script, but yesterday I tried creating them and adding the root user to them, and that didn't solve the issue.

The distro package seems to fix this, but to follow what you suggested, I uninstalled it and ran sudo make install to make sure I'm not mixing the two.