[helly@hellyland ~]$ VirtualBox
WARNING: The vboxdrv kernel module is not loaded. Either there is no module
         available for the current kernel (2.6.24.4-64.fc8) or it failed to
         load. Please recompile the kernel module and install it by

           sudo /etc/init.d/vboxdrv setup

         You will not be able to start VMs until this problem is fixed.
WARNING: The compilation of the vboxdrv.ko kernel module failed during the
         installation for some reason. Starting a VM will not be possible.
         Please consult the User Manual for build instructions.

[root@hellyland ~]# /etc/init.d/vboxdrv setup
Stopping VirtualBox kernel module                          [  OK  ]
Recompiling VirtualBox kernel module                       [ÉCHOUÉ]
(Look at /var/log/vbox-install.log to find out what went wrong)

make KBUILD_VERBOSE=1 -C /lib/modules/2.6.24.4-64.fc8/build SUBDIRS=/tmp/vbox.14 SRCROOT=/tmp/vbox.14 modules
make[1]: gcc : commande introuvable
make[1]: entrant dans le répertoire « /usr/src/kernels/2.6.24.4-64.fc8-x86_64 »
test -e include/linux/autoconf.h -a -e include/config/auto.conf || (        \
    echo;                                \
    echo "  ERROR: Kernel configuration is invalid.";        \
    echo "         include/linux/autoconf.h or include/config/auto.conf are missing.";    \
    echo "         Run 'make oldconfig && make prepare' on kernel src to fix it.";    \
    echo;                                \
    /bin/false)
mkdir -p /tmp/vbox.14/.tmp_versions ; rm -f /tmp/vbox.14/.tmp_versions/*
make -f scripts/Makefile.build obj=/tmp/vbox.14
  gcc -Wp,-MD,/tmp/vbox.14/linux/.SUPDrv-linux.o.d  -nostdinc -isystem  -D__KERNEL__ -Iinclude  -include include/linux/autoconf.h -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs -fno-strict-aliasing -fno-common -Werror-implicit-function-declaration -Os   -m64 -mno-red-zone -mcmodel=kernel -pipe -Wno-sign-compare -fno-asynchronous-unwind-tables   -maccumulate-outgoing-args    -fomit-frame-pointer -g      -I/lib/modules/2.6.24.4-64.fc8/build/include -I/tmp/vbox.14/ -I/tmp/vbox.14/include -I/tmp/vbox.14/r0drv/linux -D__KERNEL__ -DMODULE -DRT_OS_LINUX -DIN_RING0 -DIN_RT_R0 -DIN_SUP_R0 -DCONFIG_VBOXDRV_AS_MISC -DRT_ARCH_AMD64 -DVBOX_WITHOUT_IDT_PATCHING -DUSE_NEW_OS_INTERFACE_FOR_MM   -DMODULE -D"KBUILD_STR(s)=#s" -D"KBUILD_BASENAME=KBUILD_STR(SUPDrv_linux)"  -D"KBUILD_MODNAME=KBUILD_STR(vboxdrv)" -c -o /tmp/vbox.14/linux/SUPDrv-linux.o /tmp/vbox.14/linux/SUPDrv-linux.c
/bin/sh: gcc: command not found
make[2]: *** [/tmp/vbox.14/linux/SUPDrv-linux.o] Erreur 127
make[1]: *** [_module_/tmp/vbox.14] Erreur 2
make[1]: quittant le répertoire « /usr/src/kernels/2.6.24.4-64.fc8-x86_64 »
make: *** [vboxdrv] Erreur 2

[root@hellyland ~]# rpm -qa | grep kernel
kernel-devel-2.6.24.4-64.fc8
kernel-2.6.24.3-50.fc8
kernel-2.6.24.4-64.fc8
kernel-headers-2.6.24.4-64.fc8