Activate Intel VT-d in the kernel on CentOS7
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In CentOS 7, append the kernel command line parameters to the GRUB_CMDLINE_LINUX
entry in /etc/sysconfig/grub
.
For example, change:
GRUB_CMDLINE_LINUX="rd.lvm.lv=centos/swap rd.lvm.lv=centos/root vconsole.font=latarcyrheb-sun16 crashkernel=auto vconsole.keymap=us rhgb quiet"
to:
GRUB_CMDLINE_LINUX="rd.lvm.lv=centos/swap rd.lvm.lv=centos/root vconsole.font=latarcyrheb-sun16 crashkernel=auto vconsole.keymap=us rhgb quiet intel_iommu=on"
Then regenerate the grub configuration with dracut
:
dracut --regenerate-all --force
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Author by
Ibrahim Buamod
Updated on September 18, 2022Comments
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Ibrahim Buamod over 1 year
Following many tutorials, they ask you to alter the grup file at the /boot/grup/grup.conf.. but in Centos7 there is no /boot/grup/grup.conf
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Activate Intel VT-d in the kernel Activate Intel VT-d in the kernel by appending the intel_iommu=on parameter to the kernel line of the kernel line in the /boot/grub/grub.conf file. The example below is a modified grub.conf file with Intel VT-d activated.
default=0 timeout=5 splashimage=(hd0,0)/grub/splash.xpm.gz hiddenmenu title Fedora Server (2.6.18-190.el5) root (hd0,0) kernel /vmlinuz-2.6.18-190.el5 ro root=/dev/VolGroup00/LogVol00 rhgb quiet intel_iommu=on initrd /initrd-2.6.18-190.el5.img
?? how to activate the inter vt-d
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Ibrahim Buamod over 8 yearsHow can I verify that the PCI is Activated in the Kernal