Hi all! I find ever that there is a rpm package named by VirtualBox-guest-additions in the RPM FUSION repository. I always install it into my Fedora box. In my impression, it worked well very long time ago. However, something wrong with this rpm happened sometime after then. Vboxclient always complains "Vbox kernel service cann't running" when I log in to GNOME by gdm. Let see what happened on my Fedora box. Firstly, some rpms needed by VirtualBox guest Additions has installed ,------------------------------------------------ | $ rpm -qa | grep -i "virtualbox" | VirtualBox-guest-additions-5.1.24-1.fc25.x86_64 | akmod-VirtualBox-5.1.24-1.fc25.x86_64 | VirtualBox-kmodsrc-5.1.24-1.fc25.x86_64 `------------------------------------------------ and ,--------------------------------------- | $ rpm -qa | grep -i 'kernel-headers' | kernel-headers-4.11.12-200.fc25.x86_64 `--------------------------------------- But the vboxservice.service is failed to start ,------------------------------------------------------------------------------------------------------------ | $ systemctl status vboxservice.service | vboxservice.service - VirtualBox guest services | Loaded: loaded (/usr/lib/systemd/system/vboxservice.service; enabled; vendor preset: enabled) | Active: failed (Result: exit-code) since Wed 2017-08-02 06:33:05 CST; 54min ago | Process: 583 ExecStart=/usr/sbin/VBoxService -f (code=exited, status=1/FAILURE) | Main PID: 583 (code=exited, status=1/FAILURE) | | Aug 02 06:33:04 Arcadia systemd[1]: Started VirtualBox guest services. | Aug 02 06:33:05 Arcadia VBoxService[583]: VBoxService: error: VbglR3Init failed with rc=VERR_FILE_NOT_FOUND | Aug 02 06:33:05 Arcadia systemd[1]: vboxservice.service: Main process exited, code=exited, status=1/FAILURE | Aug 02 06:33:05 Arcadia systemd[1]: vboxservice.service: Unit entered failed state. | Aug 02 06:33:05 Arcadia systemd[1]: vboxservice.service: Failed with result 'exit-code'. `------------------------------------------------------------------------------------------------------------ Why does VirtualBox-guest-additions not work? Do I miss some necessary steps to make it work? Another strange behavour is happend in the directory of /lib/modules: ,------------------------------------------------------------------------------------------------------------------------------- | $ ls -al /lib/modules/4.11.12-200.fc25.x86_64/build | lrwxrwxrwx. 1 root root 40 Jul 22 00:57 /lib/modules/4.11.12-200.fc25.x86_64/build ->/usr/src/kernels/4.11.12-200.fc25.x86_64 | $ ls /usr/src/kernels | 4.11.12-200.fc25.x86_64+debug `------------------------------------------------------------------------------------------------------------------------------- Please help me! -- Cheers, Easior Lars ---------------------------------------- Gentoo Linux | Fedora Linux | Kali Linux --------------------------------------------------------------- Histories make men wise; poets witty; the mathematics subtitle; natural philosophy deep; moral grave; logic and rhetoric able to contend. Abeunt studia in mores. Nay, there is no stand or impediment in the wit, but may be wrought out by fit studies; like as diseases of the body, may have appropriate exercises. Bowling is good for the stone and reins; shooting for the lungs and breast; gentle walking for the stomach; riding for the head; and the like. So if a man's wit be wandering, let him study the mathematics; for in demonstrations, if his wit be called away never so little, he must begin again. If his wit be not apt to distinguish or find differences, let him study the Schoolmen; for they are cymini sectors. If he be not apt to beat over matters, and to call up one thing to prove and illustrate another, let him study the lawyers' cases. So every defect of the mind, may have a special receipt. On Studies, by Francis Bacon