Il 05/08/19 17:49, Akemi Yagi ha scritto:> On Mon, Aug 5, 2019 at 8:42 AM Alessandro Baggi > <alessandro.baggi at gmail.com> wrote: >> >> Il 05/08/19 17:30, Akemi Yagi ha scritto: >>> On Mon, Aug 5, 2019 at 6:46 AM Alessandro Baggi >>> <alessandro.baggi at gmail.com> wrote: >>>> >>>> Hey there, >>>> I'm trying to compile a single module following this guide: >>>> >>>> https://wiki.centos.org/HowTos/BuildingKernelModules#head-d2e4c05886f94c701e4ae74387d41d8c40c25d01 >>>> >>>> and >>>> >>>> https://wiki.centos.org/HowTos/I_need_the_Kernel_Source >>>> >>>> I tried to compile a module for novuton led controller supplied by >>>> thirdparty and I got several error. >>>> >>>> To check if this is the wrong procedure I tried to compile cifs module >>>> as listed in howto but when loading with modprobe I get "Exec format >>>> error", and from dmesg "cifs: no symbol version for module_layout >>>> ", the same errors when compiling novuton module and I don't know why I >>>> get this error. >>> >>> When following the instructions in BuildingKernelModules, which kernel >>> version did you use? Also, after the "depmod -a" step, what is the >>> output from: >>> >>> $ modinfo cifs | grep filename >>> >>>> I noticed that modules in centos are compressed in .xz but after running >>>> make M=fs/cifs I got only a .ko kernel module and then I run xz to >>>> compress the new module. >>> >>> Compressing modules is optional. Uncompressed form is functionally the >>> same (of course it saves some disk space). >>> >>>> Can someone help me please? >>>> >>>> Thanks in advance. >>> >>> Akemi >> >> Hi Akemi, >> thank you for your answer. >> >> Kernel version used is 3.10.0-957.27.2.el7.x86_64 >> >> [root at c7-test SPECS]# modinfo cifs | grep filename >> filename: /lib/modules/3.10.0-957.27.2.el7.x86_64/extra/cifs.ko > > Looking good. I assume your running kernel is 3.10.0-957.27.2.el7 ? > > Akemi > _______________________________________________ > CentOS mailing list > CentOS at centos.org > https://lists.centos.org/mailman/listinfo/centos >Reading from dmesg seems that the module is not accepted by kernel due to invalid signature. I need to sign the module with a key? Thanks in advance
On Mon, Aug 5, 2019 at 9:01 AM Alessandro Baggi <alessandro.baggi at gmail.com> wrote:> > Il 05/08/19 17:49, Akemi Yagi ha scritto: > > On Mon, Aug 5, 2019 at 8:42 AM Alessandro Baggi > > <alessandro.baggi at gmail.com> wrote: > >> > >> Il 05/08/19 17:30, Akemi Yagi ha scritto: > >>> On Mon, Aug 5, 2019 at 6:46 AM Alessandro Baggi > >>> <alessandro.baggi at gmail.com> wrote: > >>>> > >>>> Hey there, > >>>> I'm trying to compile a single module following this guide: > >>>> > >>>> https://wiki.centos.org/HowTos/BuildingKernelModules#head-d2e4c05886f94c701e4ae74387d41d8c40c25d01 > >>>> > >>>> and > >>>> > >>>> https://wiki.centos.org/HowTos/I_need_the_Kernel_Source > >>>> > >>>> I tried to compile a module for novuton led controller supplied by > >>>> thirdparty and I got several error. > >>>> > >>>> To check if this is the wrong procedure I tried to compile cifs module > >>>> as listed in howto but when loading with modprobe I get "Exec format > >>>> error", and from dmesg "cifs: no symbol version for module_layout > >>>> ", the same errors when compiling novuton module and I don't know why I > >>>> get this error. > >>> > >>> When following the instructions in BuildingKernelModules, which kernel > >>> version did you use? Also, after the "depmod -a" step, what is the > >>> output from: > >>> > >>> $ modinfo cifs | grep filename > >>> > >>>> I noticed that modules in centos are compressed in .xz but after running > >>>> make M=fs/cifs I got only a .ko kernel module and then I run xz to > >>>> compress the new module. > >>> > >>> Compressing modules is optional. Uncompressed form is functionally the > >>> same (of course it saves some disk space). > >>> > >>>> Can someone help me please? > >>>> > >>>> Thanks in advance. > >>> > >>> Akemi > >> > >> Hi Akemi, > >> thank you for your answer. > >> > >> Kernel version used is 3.10.0-957.27.2.el7.x86_64 > >> > >> [root at c7-test SPECS]# modinfo cifs | grep filename > >> filename: /lib/modules/3.10.0-957.27.2.el7.x86_64/extra/cifs.ko > > > > Looking good. I assume your running kernel is 3.10.0-957.27.2.el7 ? > > > > Akemi> Reading from dmesg seems that the module is not accepted by kernel due > to invalid signature. I need to sign the module with a key?Do you have secureboot enabled? Then yes, that requires a proper key. Akemi
Il 05/08/19 18:07, Akemi Yagi ha scritto:> On Mon, Aug 5, 2019 at 9:01 AM Alessandro Baggi > <alessandro.baggi at gmail.com> wrote: >> >> Il 05/08/19 17:49, Akemi Yagi ha scritto: >>> On Mon, Aug 5, 2019 at 8:42 AM Alessandro Baggi >>> <alessandro.baggi at gmail.com> wrote: >>>> >>>> Il 05/08/19 17:30, Akemi Yagi ha scritto: >>>>> On Mon, Aug 5, 2019 at 6:46 AM Alessandro Baggi >>>>> <alessandro.baggi at gmail.com> wrote: >>>>>> >>>>>> Hey there, >>>>>> I'm trying to compile a single module following this guide: >>>>>> >>>>>> https://wiki.centos.org/HowTos/BuildingKernelModules#head-d2e4c05886f94c701e4ae74387d41d8c40c25d01 >>>>>> >>>>>> and >>>>>> >>>>>> https://wiki.centos.org/HowTos/I_need_the_Kernel_Source >>>>>> >>>>>> I tried to compile a module for novuton led controller supplied by >>>>>> thirdparty and I got several error. >>>>>> >>>>>> To check if this is the wrong procedure I tried to compile cifs module >>>>>> as listed in howto but when loading with modprobe I get "Exec format >>>>>> error", and from dmesg "cifs: no symbol version for module_layout >>>>>> ", the same errors when compiling novuton module and I don't know why I >>>>>> get this error. >>>>> >>>>> When following the instructions in BuildingKernelModules, which kernel >>>>> version did you use? Also, after the "depmod -a" step, what is the >>>>> output from: >>>>> >>>>> $ modinfo cifs | grep filename >>>>> >>>>>> I noticed that modules in centos are compressed in .xz but after running >>>>>> make M=fs/cifs I got only a .ko kernel module and then I run xz to >>>>>> compress the new module. >>>>> >>>>> Compressing modules is optional. Uncompressed form is functionally the >>>>> same (of course it saves some disk space). >>>>> >>>>>> Can someone help me please? >>>>>> >>>>>> Thanks in advance. >>>>> >>>>> Akemi >>>> >>>> Hi Akemi, >>>> thank you for your answer. >>>> >>>> Kernel version used is 3.10.0-957.27.2.el7.x86_64 >>>> >>>> [root at c7-test SPECS]# modinfo cifs | grep filename >>>> filename: /lib/modules/3.10.0-957.27.2.el7.x86_64/extra/cifs.ko >>> >>> Looking good. I assume your running kernel is 3.10.0-957.27.2.el7 ? >>> >>> Akemi > >> Reading from dmesg seems that the module is not accepted by kernel due >> to invalid signature. I need to sign the module with a key? > > Do you have secureboot enabled? Then yes, that requires a proper key. > > Akemi > _______________________________________________ > CentOS mailing list > CentOS at centos.org > https://lists.centos.org/mailman/listinfo/centos >Yes I have secureboot enabled. If usefull to others in list this could helps: https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/html/Kernel_Administration_Guide/sect-signing-kernel-modules-for-secure-boot.html I think also that centos's wiki must be updated because steps are valid for centos 5 and because key-signing is required for secure boot I think that a proper section must be inserted.