Building the main Guest Additions module for kernel 2.6.32-504.el6.x86_64. Building the shared folder support module. Error building the module. Build output follows. make V=1 CONFIG_MODULE_SIG= -C /lib/modules/2.6.32-504.el6.x86_64/build M=/tmp/vbox.0 SRCROOT=/tmp/vbox.0 -j1 modules 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.0/.tmp_versions ; rm -f /tmp/vbox.0/.tmp_versions/* make -f scripts/Makefile.build obj=/tmp/vbox.0 gcc -Wp,-MD,/tmp/vbox.0/.vfsmod.o.d -nostdinc -isystem /usr/lib/gcc/x86_64-redhat-linux/4.4.7/include -Iinclude -I/usr/src/kernels/2.6.32-504.el6.x86_64/include/uapi -I/usr/src/kernels/2.6.32-504.el6.x86_64/arch/x86/include -Iarch/include/generated -Iinclude -include /usr/src/kernels/2.6.32-504.el6.x86_64/include/linux/kconfig.h -D__KERNEL__ -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs -fno-strict-aliasing -fno-common -Werror-implicit-function-declaration -Wno-format-security -fno-delete-null-pointer-checks -O2 -m64 -mtune=generic -mno-red-zone -mcmodel=kernel -funit-at-a-time -maccumulate-outgoing-args -fstack-protector -DCONFIG_AS_CFI=1 -DCONFIG_AS_CFI_SIGNAL_FRAME=1 -DCONFIG_AS_CFI_SECTIONS=1 -DCONFIG_AS_AVX=1 -pipe -Wno-sign-compare -fno-asynchronous-unwind-tables -mno-sse -mno-mmx -mno-sse2 -mno-3dnow -Wframe-larger-than=2048 -Wno-unused-but-set-variable -fno-omit-frame-pointer -fno-optimize-sibling-calls -g -pg -Wdeclaration-after-statement -Wno-pointer-sign -fno-strict-overflow -fno-dwarf2-cfi-asm -fconserve-stack -Wno-declaration-after-statement -fno-pie -include /tmp/vbox.0//include/VBox/VBoxGuestMangling.h -fshort-wchar -I/usr/src/kernels/2.6.32-504.el6.x86_64/include -I/tmp/vbox.0/ -I/tmp/vbox.0/include -I/tmp/vbox.0/r0drv/linux -D__KERNEL__ -DMODULE -DRT_WITHOUT_PRAGMA_ONCE -DRT_OS_LINUX -DIN_RING0 -DIN_RT_R0 -DIN_SUP_R0 -DVBOX -DVBOX_WITH_HGCM -DIN_MODULE -DIN_GUEST -DIN_GUEST_R0 -DRT_NO_EXPORT_SYMBOL -DVBOX_WITH_64_BITS_GUESTS -DRT_ARCH_AMD64 -DMODULE -D"KBUILD_STR(s)=#s" -D"KBUILD_BASENAME=KBUILD_STR(vfsmod)" -D"KBUILD_MODNAME=KBUILD_STR(vboxsf)" -D"DEBUG_HASH=41" -D"DEBUG_HASH2=24" -c -o /tmp/vbox.0/.tmp_vfsmod.o /tmp/vbox.0/vfsmod.c set -e ; perl /usr/src/kernels/2.6.32-504.el6.x86_64/scripts/recordmcount.pl "x86_64" "64" "objdump" "objcopy" "gcc" "ld" "nm" "" "" "1" "/tmp/vbox.0/vfsmod.o"; gcc -Wp,-MD,/tmp/vbox.0/.dirops.o.d -nostdinc -isystem /usr/lib/gcc/x86_64-redhat-linux/4.4.7/include -Iinclude -I/usr/src/kernels/2.6.32-504.el6.x86_64/include/uapi -I/usr/src/kernels/2.6.32-504.el6.x86_64/arch/x86/include -Iarch/include/generated -Iinclude -include /usr/src/kernels/2.6.32-504.el6.x86_64/include/linux/kconfig.h -D__KERNEL__ -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs -fno-strict-aliasing -fno-common -Werror-implicit-function-declaration -Wno-format-security -fno-delete-null-pointer-checks -O2 -m64 -mtune=generic -mno-red-zone -mcmodel=kernel -funit-at-a-time -maccumulate-outgoing-args -fstack-protector -DCONFIG_AS_CFI=1 -DCONFIG_AS_CFI_SIGNAL_FRAME=1 -DCONFIG_AS_CFI_SECTIONS=1 -DCONFIG_AS_AVX=1 -pipe -Wno-sign-compare -fno-asynchronous-unwind-tables -mno-sse -mno-mmx -mno-sse2 -mno-3dnow -Wframe-larger-than=2048 -Wno-unused-but-set-variable -fno-omit-frame-pointer -fno-optimize-sibling-calls -g -pg -Wdeclaration-after-statement -Wno-pointer-sign -fno-strict-overflow -fno-dwarf2-cfi-asm -fconserve-stack -Wno-declaration-after-statement -fno-pie -include /tmp/vbox.0//include/VBox/VBoxGuestMangling.h -fshort-wchar -I/usr/src/kernels/2.6.32-504.el6.x86_64/include -I/tmp/vbox.0/ -I/tmp/vbox.0/include -I/tmp/vbox.0/r0drv/linux -D__KERNEL__ -DMODULE -DRT_WITHOUT_PRAGMA_ONCE -DRT_OS_LINUX -DIN_RING0 -DIN_RT_R0 -DIN_SUP_R0 -DVBOX -DVBOX_WITH_HGCM -DIN_MODULE -DIN_GUEST -DIN_GUEST_R0 -DRT_NO_EXPORT_SYMBOL -DVBOX_WITH_64_BITS_GUESTS -DRT_ARCH_AMD64 -DMODULE -D"KBUILD_STR(s)=#s" -D"KBUILD_BASENAME=KBUILD_STR(dirops)" -D"KBUILD_MODNAME=KBUILD_STR(vboxsf)" -D"DEBUG_HASH=41" -D"DEBUG_HASH2=24" -c -o /tmp/vbox.0/.tmp_dirops.o /tmp/vbox.0/dirops.c set -e ; perl /usr/src/kernels/2.6.32-504.el6.x86_64/scripts/recordmcount.pl "x86_64" "64" "objdump" "objcopy" "gcc" "ld" "nm" "" "" "1" "/tmp/vbox.0/dirops.o"; gcc -Wp,-MD,/tmp/vbox.0/.lnkops.o.d -nostdinc -isystem /usr/lib/gcc/x86_64-redhat-linux/4.4.7/include -Iinclude -I/usr/src/kernels/2.6.32-504.el6.x86_64/include/uapi -I/usr/src/kernels/2.6.32-504.el6.x86_64/arch/x86/include -Iarch/include/generated -Iinclude -include /usr/src/kernels/2.6.32-504.el6.x86_64/include/linux/kconfig.h -D__KERNEL__ -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs -fno-strict-aliasing -fno-common -Werror-implicit-function-declaration -Wno-format-security -fno-delete-null-pointer-checks -O2 -m64 -mtune=generic -mno-red-zone -mcmodel=kernel -funit-at-a-time -maccumulate-outgoing-args -fstack-protector -DCONFIG_AS_CFI=1 -DCONFIG_AS_CFI_SIGNAL_FRAME=1 -DCONFIG_AS_CFI_SECTIONS=1 -DCONFIG_AS_AVX=1 -pipe -Wno-sign-compare -fno-asynchronous-unwind-tables -mno-sse -mno-mmx -mno-sse2 -mno-3dnow -Wframe-larger-than=2048 -Wno-unused-but-set-variable -fno-omit-frame-pointer -fno-optimize-sibling-calls -g -pg -Wdeclaration-after-statement -Wno-pointer-sign -fno-strict-overflow -fno-dwarf2-cfi-asm -fconserve-stack -Wno-declaration-after-statement -fno-pie -include /tmp/vbox.0//include/VBox/VBoxGuestMangling.h -fshort-wchar -I/usr/src/kernels/2.6.32-504.el6.x86_64/include -I/tmp/vbox.0/ -I/tmp/vbox.0/include -I/tmp/vbox.0/r0drv/linux -D__KERNEL__ -DMODULE -DRT_WITHOUT_PRAGMA_ONCE -DRT_OS_LINUX -DIN_RING0 -DIN_RT_R0 -DIN_SUP_R0 -DVBOX -DVBOX_WITH_HGCM -DIN_MODULE -DIN_GUEST -DIN_GUEST_R0 -DRT_NO_EXPORT_SYMBOL -DVBOX_WITH_64_BITS_GUESTS -DRT_ARCH_AMD64 -DMODULE -D"KBUILD_STR(s)=#s" -D"KBUILD_BASENAME=KBUILD_STR(lnkops)" -D"KBUILD_MODNAME=KBUILD_STR(vboxsf)" -D"DEBUG_HASH=41" -D"DEBUG_HASH2=24" -c -o /tmp/vbox.0/.tmp_lnkops.o /tmp/vbox.0/lnkops.c set -e ; perl /usr/src/kernels/2.6.32-504.el6.x86_64/scripts/recordmcount.pl "x86_64" "64" "objdump" "objcopy" "gcc" "ld" "nm" "" "" "1" "/tmp/vbox.0/lnkops.o"; gcc -Wp,-MD,/tmp/vbox.0/.regops.o.d -nostdinc -isystem /usr/lib/gcc/x86_64-redhat-linux/4.4.7/include -Iinclude -I/usr/src/kernels/2.6.32-504.el6.x86_64/include/uapi -I/usr/src/kernels/2.6.32-504.el6.x86_64/arch/x86/include -Iarch/include/generated -Iinclude -include /usr/src/kernels/2.6.32-504.el6.x86_64/include/linux/kconfig.h -D__KERNEL__ -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs -fno-strict-aliasing -fno-common -Werror-implicit-function-declaration -Wno-format-security -fno-delete-null-pointer-checks -O2 -m64 -mtune=generic -mno-red-zone -mcmodel=kernel -funit-at-a-time -maccumulate-outgoing-args -fstack-protector -DCONFIG_AS_CFI=1 -DCONFIG_AS_CFI_SIGNAL_FRAME=1 -DCONFIG_AS_CFI_SECTIONS=1 -DCONFIG_AS_AVX=1 -pipe -Wno-sign-compare -fno-asynchronous-unwind-tables -mno-sse -mno-mmx -mno-sse2 -mno-3dnow -Wframe-larger-than=2048 -Wno-unused-but-set-variable -fno-omit-frame-pointer -fno-optimize-sibling-calls -g -pg -Wdeclaration-after-statement -Wno-pointer-sign -fno-strict-overflow -fno-dwarf2-cfi-asm -fconserve-stack -Wno-declaration-after-statement -fno-pie -include /tmp/vbox.0//include/VBox/VBoxGuestMangling.h -fshort-wchar -I/usr/src/kernels/2.6.32-504.el6.x86_64/include -I/tmp/vbox.0/ -I/tmp/vbox.0/include -I/tmp/vbox.0/r0drv/linux -D__KERNEL__ -DMODULE -DRT_WITHOUT_PRAGMA_ONCE -DRT_OS_LINUX -DIN_RING0 -DIN_RT_R0 -DIN_SUP_R0 -DVBOX -DVBOX_WITH_HGCM -DIN_MODULE -DIN_GUEST -DIN_GUEST_R0 -DRT_NO_EXPORT_SYMBOL -DVBOX_WITH_64_BITS_GUESTS -DRT_ARCH_AMD64 -DMODULE -D"KBUILD_STR(s)=#s" -D"KBUILD_BASENAME=KBUILD_STR(regops)" -D"KBUILD_MODNAME=KBUILD_STR(vboxsf)" -D"DEBUG_HASH=41" -D"DEBUG_HASH2=24" -c -o /tmp/vbox.0/.tmp_regops.o /tmp/vbox.0/regops.c set -e ; perl /usr/src/kernels/2.6.32-504.el6.x86_64/scripts/recordmcount.pl "x86_64" "64" "objdump" "objcopy" "gcc" "ld" "nm" "" "" "1" "/tmp/vbox.0/regops.o"; gcc -Wp,-MD,/tmp/vbox.0/.utils.o.d -nostdinc -isystem /usr/lib/gcc/x86_64-redhat-linux/4.4.7/include -Iinclude -I/usr/src/kernels/2.6.32-504.el6.x86_64/include/uapi -I/usr/src/kernels/2.6.32-504.el6.x86_64/arch/x86/include -Iarch/include/generated -Iinclude -include /usr/src/kernels/2.6.32-504.el6.x86_64/include/linux/kconfig.h -D__KERNEL__ -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs -fno-strict-aliasing -fno-common -Werror-implicit-function-declaration -Wno-format-security -fno-delete-null-pointer-checks -O2 -m64 -mtune=generic -mno-red-zone -mcmodel=kernel -funit-at-a-time -maccumulate-outgoing-args -fstack-protector -DCONFIG_AS_CFI=1 -DCONFIG_AS_CFI_SIGNAL_FRAME=1 -DCONFIG_AS_CFI_SECTIONS=1 -DCONFIG_AS_AVX=1 -pipe -Wno-sign-compare -fno-asynchronous-unwind-tables -mno-sse -mno-mmx -mno-sse2 -mno-3dnow -Wframe-larger-than=2048 -Wno-unused-but-set-variable -fno-omit-frame-pointer -fno-optimize-sibling-calls -g -pg -Wdeclaration-after-statement -Wno-pointer-sign -fno-strict-overflow -fno-dwarf2-cfi-asm -fconserve-stack -Wno-declaration-after-statement -fno-pie -include /tmp/vbox.0//include/VBox/VBoxGuestMangling.h -fshort-wchar -I/usr/src/kernels/2.6.32-504.el6.x86_64/include -I/tmp/vbox.0/ -I/tmp/vbox.0/include -I/tmp/vbox.0/r0drv/linux -D__KERNEL__ -DMODULE -DRT_WITHOUT_PRAGMA_ONCE -DRT_OS_LINUX -DIN_RING0 -DIN_RT_R0 -DIN_SUP_R0 -DVBOX -DVBOX_WITH_HGCM -DIN_MODULE -DIN_GUEST -DIN_GUEST_R0 -DRT_NO_EXPORT_SYMBOL -DVBOX_WITH_64_BITS_GUESTS -DRT_ARCH_AMD64 -DMODULE -D"KBUILD_STR(s)=#s" -D"KBUILD_BASENAME=KBUILD_STR(utils)" -D"KBUILD_MODNAME=KBUILD_STR(vboxsf)" -D"DEBUG_HASH=41" -D"DEBUG_HASH2=24" -c -o /tmp/vbox.0/.tmp_utils.o /tmp/vbox.0/utils.c /tmp/vbox.0/utils.c: In function ‘vbsf_init_inode’: /tmp/vbox.0/utils.c:316: error: implicit declaration of function ‘set_nlink’ make[2]: *** [/tmp/vbox.0/utils.o] Error 1 make[1]: *** [_module_/tmp/vbox.0] Error 2 make: *** [vboxsf] Error 2 Installing X.Org Server 1.15 modules You may need to restart the Window System (or just restart the guest system) to enable the Guest Additions.