From /var/log/boot.log: [ESC[1;31mFAILEDESC[0m] Failed to start ISDN Services. See 'systemctl status isdn.service' for details. # systemctl status isdn.service isdn.service - ISDN Services Loaded: loaded (/usr/lib/systemd/system/isdn.service; enabled) Active: failed (Result: exit-code) since Sat 2013-02-23 14:16:14 CST; 1h 56min ago Process: 727 ExecStart=/usr/libexec/isdn start (code=exited, status=6) Feb 23 14:16:14 cinnamon systemd[1]: Starting ISDN Services... Feb 23 14:16:14 cinnamon systemd[1]: isdn.service: main process exited, code=exited, status=6/NOTCONFIGURED Feb 23 14:16:14 cinnamon systemd[1]: Failed to start ISDN Services. Feb 23 14:16:14 cinnamon systemd[1]: Unit isdn.service entered failed state From /var/log/messages: Feb 17 14:53:44 unknownb8ac6fc6fb58 systemd[1]: isdn.service: main process exited, code=exited, status=6/NOTCONFIGURED Feb 17 14:53:44 unknownb8ac6fc6fb58 systemd[1]: Failed to start ISDN Services. Feb 17 14:53:44 unknownb8ac6fc6fb58 systemd[1]: Unit isdn.service entered failed state Feb 17 14:53:44 unknownb8ac6fc6fb58 systemd[1]: Started Permit User Sessions. Feb 17 14:53:44 unknownb8ac6fc6fb58 systemd[1]: Starting Job spooling tools... Relevant package versions: isdn4k-utils-3.2-88.fc18.x86_64 systemd-197-1.fc18.1.x86_64 kernel-3.7.9-201.fc18.x86_64 Why am I getting this error during boot when I don't even want to use ISDN?
*** Bug 914872 has been marked as a duplicate of this bug. ***
I noticed this began appearing after I applied the MATE package to my Fedora 18.
I think isdn shouldn't be enabled by default. Instead, you could enable it only when the hardware is detected. Have a look on qemu-guest-agent for an example.
*** This bug has been marked as a duplicate of bug 959793 ***