If two installed kernels differ only by KV_LOCAL and KBUILD_OUTPUT is not specified, the OUTPUT_DIR is set wrongly at line 530 OUTPUT_DIR="${OUTPUT_DIR:-/lib/modules/${KV_MAJOR}.${KV_MINOR}.${KV_PATCH}${KV_EXTRA}/build}" 531 532 [ -h "${OUTPUT_DIR}" ] && KV_OUT_DIR="$(readlink -f ${OUTPUT_DIR})" 533 [ -d "${OUTPUT_DIR}" ] && KV_OUT_DIR="${OUTPUT_DIR}" 534 if [ -n "${KV_OUT_DIR}" ]; 535 then 536 qeinfo "Found kernel object directory:" 537 qeinfo " ${KV_OUT_DIR}" ... I suggest using "make kernelrelease" in $KV_DIR to get the right version, and use /lib/modules/$kernelrelease/build for KV_OUT_DIR if KBUILD_OUTPUT is not specified. Reproducible: Always Steps to Reproduce: $ ls -d /usr/src/linux-* /usr/src/linux-2.6.34 /usr/src/linux-2.6.34-7097-gf4b87de $ cd /usr/src/linux-2.6.34 && head -n 4 Makefile && make kernelversion && make kernelrelease VERSION = 2 PATCHLEVEL = 6 SUBLEVEL = 34 EXTRAVERSION = 2.6.34 2.6.34 $ cd /usr/src/linux-2.6.34-7097-gf4b87de && head -n 4 Makefile && make kernelversion && make kernelrelease VERSION = 2 PATCHLEVEL = 6 SUBLEVEL = 34 EXTRAVERSION = 2.6.34 2.6.34-7097-gf4b87de
Please sync and retest as we have changed that logic.
~> cd /lib/modules/ /lib/modules> ls 2.6.35 2.6.35-4807-g4a386c3 /lib/modules> cd /usr/src/ /usr/src> ls linux-2.6.35 linux-2.6.35-4807-g4a386c3 /usr/src> cd linux-2.6.35 /usr/src/linux-2.6.35> make kernelrelease 2.6.35 /usr/src/linux-2.6.35> cd .. /usr/src> cd linux-2.6.35-4807-g4a386c3/ /usr/src/linux-2.6.35-4807-g4a386c3> make kernelrelease 2.6.35-4807-g4a386c3 /usr/src/linux-2.6.35-4807-g4a386c3> cat localversion -4807-g4a386c3 /usr/src/linux-2.6.35-4807-g4a386c3> KERNEL_DIR=`pwd` emerge -1 nvidia-drivers Calculating dependencies... done! >>> Verifying ebuild manifests >>> Emerging (1 of 1) x11-drivers/nvidia-drivers-256.35 * NVIDIA-Linux-x86-256.35.run RMD160 SHA1 SHA256 size ;-) ... [ ok ] * checking ebuild checksums ;-) ... [ ok ] * checking auxfile checksums ;-) ... [ ok ] * checking miscfile checksums ;-) ... [ ok ] * CPV: x11-drivers/nvidia-drivers-256.35 * REPO: gentoo * USE: elibc_glibc kernel_linux userland_GNU x86 * Determining the location of the kernel source code * Found kernel source directory: * /usr/src/linux-2.6.35-4807-g4a386c3 * Found kernel object directory: * /lib/modules/2.6.35/build * Found sources for kernel version: * 2.6.35 * Checking for MTRR support ... [ ok ] >>> Unpacking source... >>> Unpacking NVIDIA-Linux-x86-256.35.run to /var/tmp/portage/x11-drivers/nvidia-drivers-256.35/work ^C Exiting on signal 2 /usr/src/linux-2.6.35-4807-g4a386c3> KBUILD_OUTPUT=/lib/modules/2.6.35-4807-g4a386c3 emerge -1 nvidia-drivers Calculating dependencies... done! >>> Verifying ebuild manifests >>> Emerging (1 of 1) x11-drivers/nvidia-drivers-256.35 * NVIDIA-Linux-x86-256.35.run RMD160 SHA1 SHA256 size ;-) ... [ ok ] * checking ebuild checksums ;-) ... [ ok ] * checking auxfile checksums ;-) ... [ ok ] * checking miscfile checksums ;-) ... [ ok ] * CPV: x11-drivers/nvidia-drivers-256.35 * REPO: gentoo * USE: elibc_glibc kernel_linux userland_GNU x86 * Determining the location of the kernel source code * Unable to find kernel sources at /usr/src/linux * Please make sure that /usr/src/linux points at your running kernel, * (or the kernel you wish to build against). * Alternatively, set the KERNEL_DIR environment variable to the kernel sources location * Unable to calculate Linux Kernel version for build, attempting to use running version * Found kernel object directory: * /usr/src/linux-2.6.35 * Found sources for kernel version: * 2.6.35 * Checking for MTRR support ... [ ok ] >>> Unpacking source... >>> Unpacking NVIDIA-Linux-x86-256.35.run to /var/tmp/portage/x11-drivers/nvidia-drivers-256.35/work ^C Exiting on signal 2 /usr/src/linux-2.6.35-4807-g4a386c3> KERNEL_DIR=`pwd` KBUILD_OUTPUT=/lib/modules/2.6.35-4807-g4a386c3 emerge -1 nvidia-drivers Calculating dependencies... done! >>> Verifying ebuild manifests >>> Emerging (1 of 1) x11-drivers/nvidia-drivers-256.35 * NVIDIA-Linux-x86-256.35.run RMD160 SHA1 SHA256 size ;-) ... [ ok ] * checking ebuild checksums ;-) ... [ ok ] * checking auxfile checksums ;-) ... [ ok ] * checking miscfile checksums ;-) ... [ ok ] * CPV: x11-drivers/nvidia-drivers-256.35 * REPO: gentoo * USE: elibc_glibc kernel_linux userland_GNU x86 * Determining the location of the kernel source code * Found kernel source directory: * /usr/src/linux-2.6.35-4807-g4a386c3 * Found kernel object directory: * /lib/modules/2.6.35-4807-g4a386c3 * Found sources for kernel version: * 2.6.35 * Could not find a usable .config in the kernel source directory. * Please ensure that /usr/src/linux-2.6.35-4807-g4a386c3 points to a configured set of Linux sources. * If you are using KBUILD_OUTPUT, please set the environment var so that * it points to the necessary object directory so that it might find .config. * ERROR: x11-drivers/nvidia-drivers-256.35 failed: * Kernel not configured; no .config found in /lib/modules/2.6.35-4807-g4a386c3 * * Call stack: * ebuild.sh, line 48: Called pkg_setup * nvidia-drivers-256.35.ebuild, line 187: Called linux-mod_pkg_setup * linux-mod.eclass, line 586: Called require_configured_kernel * linux-info.eclass, line 275: Called die * The specific snippet of code: * die "Kernel not configured; no .config found in ${KV_OUT_DIR}" * * If you need support, post the output of 'emerge --info =x11-drivers/nvidia-drivers-256.35', * the complete build log and the output of 'emerge -pqv =x11-drivers/nvidia-drivers-256.35'. * The complete build log is located at '/var/tmp/portage/x11-drivers/nvidia-drivers-256.35/temp/build.log'. * The ebuild environment file is located at '/var/tmp/portage/x11-drivers/nvidia-drivers-256.35/temp/die.env'. * S: '/var/tmp/portage/x11-drivers/nvidia-drivers-256.35/work/' >>> Failed to emerge x11-drivers/nvidia-drivers-256.35 * Messages for package x11-drivers/nvidia-drivers-256.35: * Unable to find kernel sources at /usr/src/linux * Unable to calculate Linux Kernel version for build, attempting to use running version * Messages for package x11-drivers/nvidia-drivers-256.35: * Could not find a usable .config in the kernel source directory. * Please ensure that /usr/src/linux-2.6.35-4807-g4a386c3 points to a configured set of Linux sources. * If you are using KBUILD_OUTPUT, please set the environment var so that * it points to the necessary object directory so that it might find .config. * ERROR: x11-drivers/nvidia-drivers-256.35 failed: * Kernel not configured; no .config found in /lib/modules/2.6.35-4807-g4a386c3 * * Call stack: * ebuild.sh, line 48: Called pkg_setup * nvidia-drivers-256.35.ebuild, line 187: Called linux-mod_pkg_setup * linux-mod.eclass, line 586: Called require_configured_kernel * linux-info.eclass, line 275: Called die * The specific snippet of code: * die "Kernel not configured; no .config found in ${KV_OUT_DIR}" * * If you need support, post the output of 'emerge --info =x11-drivers/nvidia-drivers-256.35', * the complete build log and the output of 'emerge -pqv =x11-drivers/nvidia-drivers-256.35'. * The complete build log is located at '/var/tmp/portage/x11-drivers/nvidia-drivers-256.35/temp/build.log'. * The ebuild environment file is located at '/var/tmp/portage/x11-drivers/nvidia-drivers-256.35/temp/die.env'. * S: '/var/tmp/portage/x11-drivers/nvidia-drivers-256.35/work/' * * The following package has failed to build or install: * * ('ebuild', '/', 'x11-drivers/nvidia-drivers-256.35', 'merge') * /usr/src/linux-2.6.35-4807-g4a386c3>
I should add this: /usr/src> ls -l */.config -rw-r--r-- 1 iro iro 54728 Aug 7 14:00 linux-2.6.35-4807-g4a386c3/.config -rw-r--r-- 1 iro iro 49447 Aug 2 10:43 linux-2.6.35/.config
Please include this output as well: (assuming /usr/src/linux is a symlink) # cd /usr/src # ln -s linux-2.6.34-7097-gf4b87de linux # emerge -1v nvidia-drivers
(In reply to comment #4) > Please include this output as well: > (assuming /usr/src/linux is a symlink) > # cd /usr/src > # ln -s linux-2.6.34-7097-gf4b87de linux > # emerge -1v nvidia-drivers > I didn't have any /usr/src/linux link, I let the eclass guess from the currently running kernel or I specify it using KERNEL_DIR if I need to use a different one. This is the output: ~> uname -r 2.6.35 ~> cd /usr/src/ /usr/src> ln -s linux-2.6.35-4807-g4a386c3 linux /usr/src> ls -l linux lrwxrwxrwx 1 root root 26 Aug 8 14:48 linux -> linux-2.6.35-4807-g4a386c3 /usr/src> emerge -1v nvidia-drivers These are the packages that would be merged, in order: Calculating dependencies ... done! [ebuild R ] x11-drivers/nvidia-drivers-256.35 USE="-acpi -custom-cflags -gtk (-multilib)" 0 kB Total: 1 package (1 reinstall), Size of downloads: 0 kB >>> Verifying ebuild manifests >>> Emerging (1 of 1) x11-drivers/nvidia-drivers-256.35 * NVIDIA-Linux-x86-256.35.run RMD160 SHA1 SHA256 size ;-) ... [ ok ] * checking ebuild checksums ;-) ... [ ok ] * checking auxfile checksums ;-) ... [ ok ] * checking miscfile checksums ;-) ... [ ok ] * CPV: x11-drivers/nvidia-drivers-256.35 * REPO: gentoo * USE: elibc_glibc kernel_linux userland_GNU x86 * Determining the location of the kernel source code * Found kernel source directory: * /usr/src/linux * Found kernel object directory: * /lib/modules/2.6.35/build * Found sources for kernel version: * 2.6.35 * Checking for MTRR support ... [ ok ] >>> Unpacking source... >>> Unpacking NVIDIA-Linux-x86-256.35.run to /var/tmp/portage/x11-drivers/nvidia-drivers-256.35/work ^C Exiting on signal 2 /usr/src> KERNEL_DIR=/usr/src/linux-2.6.35-4807-g4a386c3 emerge -1v nvidia-drivers These are the packages that would be merged, in order: Calculating dependencies... done! [ebuild R ] x11-drivers/nvidia-drivers-256.35 USE="-acpi -custom-cflags -gtk (-multilib)" 0 kB Total: 1 package (1 reinstall), Size of downloads: 0 kB >>> Verifying ebuild manifests >>> Emerging (1 of 1) x11-drivers/nvidia-drivers-256.35 * NVIDIA-Linux-x86-256.35.run RMD160 SHA1 SHA256 size ;-) ... [ ok ] * checking ebuild checksums ;-) ... [ ok ] * checking auxfile checksums ;-) ... [ ok ] * checking miscfile checksums ;-) ... [ ok ] * CPV: x11-drivers/nvidia-drivers-256.35 * REPO: gentoo * USE: elibc_glibc kernel_linux userland_GNU x86 * Determining the location of the kernel source code * Found kernel source directory: * /usr/src/linux-2.6.35-4807-g4a386c3 * Found kernel object directory: * /lib/modules/2.6.35/build * Found sources for kernel version: * 2.6.35 * Checking for MTRR support ... [ ok ] >>> Unpacking source... >>> Unpacking NVIDIA-Linux-x86-256.35.run to /var/tmp/portage/x11-drivers/nvidia-drivers-256.35/work ^C Exiting on signal 2 /usr/src> KBUILD_OUTPUT=/lib/modules/2.6.35-4807-g4a386c3 KERNEL_DIR=/usr/src/linux-2.6.35-4807-g4a386c3 emerge -1v nvidia-drivers These are the packages that would be merged, in order: Calculating dependencies... done! [ebuild R ] x11-drivers/nvidia-drivers-256.35 USE="-acpi -custom-cflags -gtk (-multilib)" 0 kB Total: 1 package (1 reinstall), Size of downloads: 0 kB >>> Verifying ebuild manifests >>> Emerging (1 of 1) x11-drivers/nvidia-drivers-256.35 * NVIDIA-Linux-x86-256.35.run RMD160 SHA1 SHA256 size ;-) ... [ ok ] * checking ebuild checksums ;-) ... [ ok ] * checking auxfile checksums ;-) ... [ ok ] * checking miscfile checksums ;-) ... [ ok ] * CPV: x11-drivers/nvidia-drivers-256.35 * REPO: gentoo * USE: elibc_glibc kernel_linux userland_GNU x86 * Determining the location of the kernel source code * Found kernel source directory: * /usr/src/linux-2.6.35-4807-g4a386c3 * Found kernel object directory: * /lib/modules/2.6.35-4807-g4a386c3 * Found sources for kernel version: * 2.6.35 * Could not find a usable .config in the kernel source directory. * Please ensure that /usr/src/linux-2.6.35-4807-g4a386c3 points to a configured set of Linux sources. * If you are using KBUILD_OUTPUT, please set the environment var so that * it points to the necessary object directory so that it might find .config. * ERROR: x11-drivers/nvidia-drivers-256.35 failed: * Kernel not configured; no .config found in /lib/modules/2.6.35-4807-g4a386c3 * * Call stack: * ebuild.sh, line 48: Called pkg_setup * nvidia-drivers-256.35.ebuild, line 187: Called linux-mod_pkg_setup * linux-mod.eclass, line 586: Called require_configured_kernel * linux-info.eclass, line 275: Called die * The specific snippet of code: * die "Kernel not configured; no .config found in ${KV_OUT_DIR}" * * If you need support, post the output of 'emerge --info =x11-drivers/nvidia-drivers-256.35', * the complete build log and the output of 'emerge -pqv =x11-drivers/nvidia-drivers-256.35'. * The complete build log is located at '/var/tmp/portage/x11-drivers/nvidia-drivers-256.35/temp/build.log'. * The ebuild environment file is located at '/var/tmp/portage/x11-drivers/nvidia-drivers-256.35/temp/die.env'. * S: '/var/tmp/portage/x11-drivers/nvidia-drivers-256.35/work/' ^C Exiting on signal 2
Does your KBUILD_OUTPUT actually contain a .config? It should. 'cd $KBUILD_OUTPUT && make kernelrelease' should work.'make
(In reply to comment #6) > Does your KBUILD_OUTPUT actually contain a .config? It should. > > 'cd $KBUILD_OUTPUT && make kernelrelease' should work.'make > Sorry, I think I've misused KBUILD_OUTPUT up until now. ~> cd /lib/modules/2.6.35-4807-g4a386c3/build /lib/modules/2.6.35-4807-g4a386c3/build> make kernelrelease 2.6.35-4807-g4a386c3 /lib/modules/2.6.35-4807-g4a386c3/build> KBUILD_OUTPUT=`pwd` emerge -1 nvidia-drivers Calculating dependencies... done! >>> Verifying ebuild manifests >>> Emerging (1 of 1) x11-drivers/nvidia-drivers-256.35 * NVIDIA-Linux-x86-256.35.run RMD160 SHA1 SHA256 size ;-) ... [ ok ] * checking ebuild checksums ;-) ... [ ok ] * checking auxfile checksums ;-) ... [ ok ] * checking miscfile checksums ;-) ... [ ok ] * CPV: x11-drivers/nvidia-drivers-256.35 * REPO: gentoo * USE: elibc_glibc kernel_linux userland_GNU x86 * Determining the location of the kernel source code * Unable to find kernel sources at /usr/src/linux * Please make sure that /usr/src/linux points at your running kernel, * (or the kernel you wish to build against). * Alternatively, set the KERNEL_DIR environment variable to the kernel sources location * Unable to calculate Linux Kernel version for build, attempting to use running version * Found kernel object directory: * /usr/src/linux-2.6.35 * Found sources for kernel version: * 2.6.35 * Checking for MTRR support ... [ ok ] >>> Unpacking source... >>> Unpacking NVIDIA-Linux-x86-256.35.run to /var/tmp/portage/x11-drivers/nvidia-drivers-256.35/work >>> Source unpacked in /var/tmp/portage/x11-drivers/nvidia-drivers-256.35/work >>> Preparing source in /var/tmp/portage/x11-drivers/nvidia-drivers-256.35/work ... * Applying NVIDIA_glx-defines.patch ... [ ok ] * Applying NVIDIA_glx-glheader.patch ... [ ok ] * Applying 256.35-unified-arch.patch ... [ ok ] * Converting /kernel/Makefile.kbuild to use M= instead of SUBDIRS= ... [ ok ] >>> Source prepared. ^C Exiting on signal 2 * Messages for package x11-drivers/nvidia-drivers-256.35: * Unable to find kernel sources at /usr/src/linux * Unable to calculate Linux Kernel version for build, attempting to use running version /lib/modules/2.6.35-4807-g4a386c3/build> KERNEL_DIR=/usr/src/linux-2.6.35-4807-g4a386c3 emerge -1 nvidia-drivers Calculating dependencies... done! >>> Verifying ebuild manifests >>> Emerging (1 of 1) x11-drivers/nvidia-drivers-256.35 * NVIDIA-Linux-x86-256.35.run RMD160 SHA1 SHA256 size ;-) ... [ ok ] * checking ebuild checksums ;-) ... [ ok ] * checking auxfile checksums ;-) ... [ ok ] * checking miscfile checksums ;-) ... [ ok ] * CPV: x11-drivers/nvidia-drivers-256.35 * REPO: gentoo * USE: elibc_glibc kernel_linux userland_GNU x86 * Determining the location of the kernel source code * Found kernel source directory: * /usr/src/linux-2.6.35-4807-g4a386c3 * Found kernel object directory: * /lib/modules/2.6.35/build * Found sources for kernel version: * 2.6.35 * Checking for MTRR support ... [ ok ] >>> Unpacking source... >>> Unpacking NVIDIA-Linux-x86-256.35.run to /var/tmp/portage/x11-drivers/nvidia-drivers-256.35/work >>> Source unpacked in /var/tmp/portage/x11-drivers/nvidia-drivers-256.35/work ^C Exiting on signal 2 * Messages for package x11-drivers/nvidia-drivers-256.35: * Unable to find kernel sources at /usr/src/linux * Unable to calculate Linux Kernel version for build, attempting to use running version >>> Emerging (1 of 1) x11-drivers/nvidia-drivers-256.35 * NVIDIA-Linux-x86-256.35.run RMD160 SHA1 SHA256 size ;-) ... [ ok ] * checking ebuild checksums ;-) ... [ ok ] * checking auxfile checksums ;-) ... [ ok ] * checking miscfile checksums ;-) ... [ ok ] * CPV: x11-drivers/nvidia-drivers-256.35 * REPO: gentoo * USE: elibc_glibc kernel_linux userland_GNU x86 * Determining the location of the kernel source code * Found kernel source directory: * /usr/src/linux-2.6.35-4807-g4a386c3 * Found kernel object directory: * /lib/modules/2.6.35-4807-g4a386c3/build * Found sources for kernel version: * 2.6.35-4807-g4a386c3 * Checking for MTRR support ... [ ok ] >>> Unpacking source... >>> Unpacking NVIDIA-Linux-x86-256.35.run to /var/tmp/portage/x11-drivers/nvidia-drivers-256.35/work ^C Exiting on signal 2
Err, something in comment #7 wasn't right. You show only 2 emerge invocations, but 3 sets of output. I do agree with your assessment about the problem w/ KV_LOCAL being missing from the path however. nick: I've CC'd you here since I took your patch for the KV_LOCAL calculation. The root problem here is that if the user does NOT specify the KBUILD_OUTPUT, but one was in use (and KBUILD_OUTPUT != KERNEL_DIR), the default OUTPUT_DIR is wrong, as it's missing KV_LOCAL, and can't include KV_LOCAL until we know it.
(In reply to comment #8) > Err, something in comment #7 wasn't right. You show only 2 emerge invocations, > but 3 sets of output. Yes, sorry. It was the output of /lib/modules/2.6.35-4807-g4a386c3/build> KBUILD_OUTPUT=`pwd` KERNEL_DIR=/usr/src/linux-2.6.35-4807-g4a386c3 emerge -1 nvidia-drivers
(In reply to comment #8) > nick: I've CC'd you here since I took your patch for the KV_LOCAL > calculation. > > The root problem here is that if the user does NOT specify the KBUILD_OUTPUT, > but one was in use (and KBUILD_OUTPUT != KERNEL_DIR), the default OUTPUT_DIR > is wrong, as it's missing KV_LOCAL, and can't include KV_LOCAL until we know > it. So I think the "fix" in this case is just to default OUTPUT_DIR to the source directory, which will then bail immediately with an error message due to the tree being unprepared. I'll look into doing this later tonight, probably coupled with adding some extra checks that were discussed earlier. The current behaviour is that the eclass tries to auto-detect the output dir by looking in /lib/modules/$VERSION/build. Unfortunately, this doomed to failure since it is impossible to know the version number before we know the output directory (there is a comment in the eclass to this effect, but it tries anyway). This problem is exacerbated by the fact that *every* recent-ish git kernel user (i.e. not using release kernels) is using localversions. Unfortunately, we can't reliably determine whether the detected output directory is wrong, because it might be perfectly valid! For example, one might build two different kernels from the same source tree with two different output directories, configurations and local versions. The good news is that if one is *not* using KBUILD_OUTPUT, then defaulting OUTPUT_DIR to the source directory is the right thing to do. On the other hand, if the user *is* using KBUILD_OUTPUT, then the source directory is required to be pristine, and this can be detected easily. The moral here is if you use KBUILD_OUTPUT (or make O=...) when building kernels, you *must* also set KBUILD_OUTPUT when running emerge (or set it in make.conf). (In reply to comment #1) > I suggest using "make kernelrelease" in $KV_DIR to get the right version, and > use /lib/modules/$kernelrelease/build for KV_OUT_DIR if KBUILD_OUTPUT is not > specified. Unfortunately, this doesn't actually work: 'make kernelrelease' doesn't necessarily produce the right answer when run from the source directory on an unconfigured kernel, and in latest git it even writes to the directory (not cool for use in ebuilds).
This bug is 11 years old. If someone wants to submit new patches for this feature please do so by sending them to the gentoo-dev mailing list as a start
