Hi,
I think you're right, I got it after I enabled: # cat /etc/yum.repos.d/CentOS-Sources.repo [...] [base-source] name=CentOS-$releasever - Base Sources baseurl=http://vault.centos.org/centos/$releasever/os/Source/ gpgcheck=1 enabled=1 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7 [...] Then I ran: # yumdownloader --source kernel.src Loaded plugins: fastestmirror Enabling centos-sclo-rh-source repository Enabling epel-source repository Enabling updates-source repository Enabling centos-sclo-sclo-source repository Enabling extras-source repository Loading mirror speeds from cached hostfile epel/x86_64/metalink | 31 kB 00:00:00 epel-source/x86_64/metalink | 29 kB 00:00:00 * base: mirror.imt-systems.com * centos-sclo-rh: ftp.agdsn.de * centos-sclo-sclo: de.mirrors.clouvider.net * epel: fedora.tu-chemnitz.de * epel-source: fedora.tu-chemnitz.de * extras: mirror.imt-systems.com * updates: mirror.scaleuptech.com base | 3.6 kB 00:00:00 base-source | 2.9 kB 00:00:00 centos-sclo-rh | 3.0 kB 00:00:00 centos-sclo-rh-source | 3.0 kB 00:00:00 centos-sclo-sclo | 3.0 kB 00:00:00 centos-sclo-sclo-source | 3.0 kB 00:00:00 extras | 2.9 kB 00:00:00 extras-source | 2.9 kB 00:00:00 updates | 2.9 kB 00:00:00 updates-source | 2.9 kB 00:00:00 Delta RPMs disabled because /usr/bin/applydeltarpm not installed. kernel-4.18.0-348.20.1.el7.src.rpm | 121 MB 00:00:01 This version is too recent I think. I'm not sure why it's there? I then manually downloaded this version, it looks like it's working better: wget https://vault.centos.org/7.9.2009/os/Source/SPackages/kernel-3.10.0-1160.el7.src.rpm Regards, Marco Passerini ________________________________ From: CentOS <centos-boun...@centos.org> on behalf of Phil Perry <ppe...@elrepo.org> Sent: Tuesday, April 19, 2022 5:46:15 PM To: centos@centos.org Subject: Re: [CentOS] Kernel rebuild failling on Centos 7: missing libbpf-devel and dwarves rpm too old On 19/04/2022 15:56, Passerini Marco wrote: > Hi, > > > I'm trying to rebuild the kernel specifically on Centos7 from src.rpm but > some packages are missing or too old. I managed to get them and compile on > Centos8 though. Any advice? > > > # yumdownloader --source kernel.src > > # rpm -ivh ./kernel-4.18.0-348.20.1.el7.src.rpm > > # rpmbuild -bb --target=`uname -m` ~/rpmbuild/SPECS/kernel.spec > Building target platforms: x86_64 > Building for target x86_64 > error: Failed build dependencies: > libbpf-devel is needed by kernel-4.18.0-348.20.1.el7.x86_64 > rpm < 4.13.0.1-19 conflicts with kernel-4.18.0-348.20.1.el7.x86_64 > dwarves < 1.13 conflicts with kernel-4.18.0-348.20.1.el7.x86_64 > You seem to be trying to build an el8 kernel source on el7? > # rpm -q dwarves > dwarves-1.10-1.el7.x86_64 > > # rpm -q rpm > rpm-4.11.3-48.el7_9.x86_64 > > # yum search libbpf-devel > Loaded plugins: fastestmirror > Loading mirror speeds from cached hostfile > * base: de.mirrors.clouvider.net > * centos-sclo-rh: ftp.tu-chemnitz.de > * centos-sclo-sclo: centos.mirrors.psw.services > * epel: ftp.uni-kl.de > * extras: mirror.imt-systems.com > * updates: centos.mirror.iphh.net > Warning: No matches found for: libbpf-devel > No matches found > > # yum info rpm > Loaded plugins: fastestmirror > Loading mirror speeds from cached hostfile > * base: de.mirrors.clouvider.net > * centos-sclo-rh: ftp.tu-chemnitz.de > * centos-sclo-sclo: mirror.softaculous.com > * epel: mirror.nextlayer.at > * extras: mirror.imt-systems.com > * updates: centos.mirror.iphh.net > Installed Packages > Name : rpm > Arch : x86_64 > Version : 4.11.3 > Release : 48.el7_9 > Size : 2.5 M > Repo : installed >>From repo : updates > Summary : The RPM package management system > URL : http://www.rpm.org/ > License : GPLv2+ > Description : The RPM Package Manager (RPM) is a powerful command line driven > : package management system capable of installing, uninstalling, > : verifying, querying, and updating software packages. Each > software > : package consists of an archive of files along with information > about > : the package like its version, a description, etc. > > # yum info dwarves > Loaded plugins: fastestmirror > Loading mirror speeds from cached hostfile > * base: de.mirrors.clouvider.net > * centos-sclo-rh: ftp.tu-chemnitz.de > * centos-sclo-sclo: ftp.antilo.de > * epel: mirror.de.leaseweb.net > * extras: mirror.imt-systems.com > * updates: centos.mirror.iphh.net > Installed Packages > Name : dwarves > Arch : x86_64 > Version : 1.10 > Release : 1.el7 > Size : 199 k > Repo : installed >>From repo : epel > Summary : Debugging Information Manipulation Tools > URL : http://oops.ghostprotocols.net:81/blog > License : GPLv2 > Description : dwarves is a set of tools that use the debugging information > inserted in > : ELF binaries by compilers such as GCC, used by well known > debuggers such as > : GDB, and more recent ones such as systemtap. > : > : Utilities in the dwarves suite include pahole, that can be > used to find > : alignment holes in structs and classes in languages such as C, > C++, but not > : limited to these. > : > : It also extracts other information such as CPU cacheline > alignment, helping > : pack those structures to achieve more cache hits. > : > : A diff like tool, codiff can be used to compare the effects > changes in source > : code generate on the resulting binaries. > : > : Another tool is pfunct, that can be used to find all sorts of > information about > : functions, inlines, decisions made by the compiler about > inlining, etc. > > > > Regards, > Marco Passerini > _______________________________________________ > CentOS mailing list > CentOS@centos.org > https://lists.centos.org/mailman/listinfo/centos _______________________________________________ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos _______________________________________________ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
