Hi list, I reinstalled on my workstation CentOS 8.1. I explain: I'm a KDE user but packages shipped from EPEL currently are buggy so I prefer a stable and functioning system to work with. So I tried to remove KDE workgroup and installed group "Workstation" but the system bricked so I reinstalled with GNOME. I've an nvidia gtx 1050ti GPU so I installed kmod-driver from rpmfusion. After the installation of Nvidia driver, I rebooted, gdm start and after I perform the login the system freeze. So this problem happened to me with C7.5 and nvidia driver. In my case I need to blacklist i915 module and system works. Also in this case I tried to boot centos changing grub kernel parameters pressing 'e' in the grub menu and adding "i915.modeset=0 rd.driver.blacklist=i915", booted and system works. So I tried to make this permanent updating grub configuration adding the previous directives (and removed rhgb and quiet) to /etc/default/grub and run grub2-mkconfig -o /boot/efi/EFI/centos/grub.cfg. Reboot the system and checked again kernel parameters on grub menu and seen that nothing changed. Booted and freezed. I checked /boot/efi/EFI/centos/grub.cfg and kernelops has the new directives. Seems that grub configuration does not take effect. I made another test inside a VM installed with minimal selection and remove rhgb and quiet parameters and worked fine. The vm is BIOS and my workstation UEFI. How I can solve this problem? Currently to boot my system I need always to add this params. Thank you in advance
Hi there! I had a similar problem recently with grub. No idea why it doesnt work. Try using grubby instead of grub2-mkconfig if you want the system to keep your kernel parameters between boots. Something like: sudo grubby --args="i915.modeset=0 rd.driver.blacklist=i915" --update- kernel=ALL Hope it helps! Have a nice day! On Mon, 2020-04-06 at 11:42 +0200, Alessandro Baggi wrote:> Hi list, > > I reinstalled on my workstation CentOS 8.1. > > I explain: I'm a KDE user but packages shipped from EPEL currently > are > buggy so I prefer a stable and functioning system to work with. So I > tried to remove KDE workgroup and installed group "Workstation" but > the > system bricked so I reinstalled with GNOME. > > I've an nvidia gtx 1050ti GPU so I installed kmod-driver from > rpmfusion. > After the installation of Nvidia driver, I rebooted, gdm start and > after > I perform the login the system freeze. So this problem happened to > me > with C7.5 and nvidia driver. In my case I need to blacklist i915 > module > and system works. > > Also in this case I tried to boot centos changing grub kernel > parameters > pressing 'e' in the grub menu and adding "i915.modeset=0 > rd.driver.blacklist=i915", booted and system works. > > So I tried to make this permanent updating grub configuration adding > the > previous directives (and removed rhgb and quiet) to > /etc/default/grub > and run grub2-mkconfig -o /boot/efi/EFI/centos/grub.cfg. > > Reboot the system and checked again kernel parameters on grub menu > and > seen that nothing changed. Booted and freezed. > > I checked /boot/efi/EFI/centos/grub.cfg and kernelops has the new > directives. > > Seems that grub configuration does not take effect. > > I made another test inside a VM installed with minimal selection and > remove rhgb and quiet parameters and worked fine. The vm is BIOS and > my > workstation UEFI. > > How I can solve this problem? Currently to boot my system I need > always > to add this params. > > Thank you in advance > > _______________________________________________ > CentOS mailing list > CentOS at centos.org > https://lists.centos.org/mailman/listinfo/centos
Il 06/04/20 11:54, Georgios ha scritto:> Hi there! > I had a similar problem recently with grub. No idea why it doesnt work. > Try using grubby instead of grub2-mkconfig if you want the system to > keep your kernel parameters between boots. > > Something like: > > sudo grubby --args="i915.modeset=0 rd.driver.blacklist=i915" --update- > kernel=ALL > > > Hope it helps! > Have a nice day! > > > On Mon, 2020-04-06 at 11:42 +0200, Alessandro Baggi wrote: >> Hi list, >> >> I reinstalled on my workstation CentOS 8.1. >> >> I explain: I'm a KDE user but packages shipped from EPEL currently >> are >> buggy so I prefer a stable and functioning system to work with. So I >> tried to remove KDE workgroup and installed group "Workstation" but >> the >> system bricked so I reinstalled with GNOME. >> >> I've an nvidia gtx 1050ti GPU so I installed kmod-driver from >> rpmfusion. >> After the installation of Nvidia driver, I rebooted, gdm start and >> after >> I perform the login the system freeze. So this problem happened to >> me >> with C7.5 and nvidia driver. In my case I need to blacklist i915 >> module >> and system works. >> >> Also in this case I tried to boot centos changing grub kernel >> parameters >> pressing 'e' in the grub menu and adding "i915.modeset=0 >> rd.driver.blacklist=i915", booted and system works. >> >> So I tried to make this permanent updating grub configuration adding >> the >> previous directives (and removed rhgb and quiet) to >> /etc/default/grub >> and run grub2-mkconfig -o /boot/efi/EFI/centos/grub.cfg. >> >> Reboot the system and checked again kernel parameters on grub menu >> and >> seen that nothing changed. Booted and freezed. >> >> I checked /boot/efi/EFI/centos/grub.cfg and kernelops has the new >> directives. >> >> Seems that grub configuration does not take effect. >> >> I made another test inside a VM installed with minimal selection and >> remove rhgb and quiet parameters and worked fine. The vm is BIOS and >> my >> workstation UEFI. >> >> How I can solve this problem? Currently to boot my system I need >> always >> to add this params. >> >> Thank you in advance >> >> _______________________________________________ >> CentOS mailing list >> CentOS at centos.org >> https://lists.centos.org/mailman/listinfo/centos > _______________________________________________ > CentOS mailing list > CentOS at centos.org > https://lists.centos.org/mailman/listinfo/centosHi, I tried as suggested, parameters will be updated but I get already crash. So I tried to remove also rhgb and quiet and works well. ?Would be good to know what is wrong with grub2-mkconfig. Where start to investigate?