similar to: C8.1 Grub problem

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 > >

Il 06/04/20 15:21, Simon Matter via CentOS ha scritto: >> 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:

> 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"

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:

Il 06/04/20 20:51, Jonathan Billings ha scritto: > On Mon, Apr 06, 2020 at 04:03:53PM +0200, Alessandro Baggi wrote: >> I'm on 8.1. I'm searching help to see if this is a bug or error by me but >> can't find nothing. >> Currently I used grubby but it does not write any file that I know like >> /boot/efi/EFI/centos/grub.cfg (I tried to remove and add arg but

Il 08/04/20 01:46, Jonathan Billings ha scritto: > On Apr 7, 2020, at 04:14, Alessandro Baggi <alessandro.baggi at gmail.com> wrote: >> thank you for your explanation. So in el8 grubby should be used to update kernel opts and grub2-mkconfig is used to generate an initial config. >> >> If I'm not wrong, grubby updates every single (sperated) entries on

On Apr 8, 2020, at 04:01, Alessandro Baggi <alessandro.baggi at gmail.com> wrote: > > Il 08/04/20 01:46, Jonathan Billings ha scritto: >> >> grubby only alters the existing configuration. It never regenerates the grub.cfg in EFI. >> >> You can?t use ?grub2-mkconfig? to create individual boot spec entries. >> >> -- >> Jonathan Billings

On Apr 7, 2020, at 04:14, Alessandro Baggi <alessandro.baggi at gmail.com> wrote: > thank you for your explanation. So in el8 grubby should be used to update kernel opts and grub2-mkconfig is used to generate an initial config. > > If I'm not wrong, grubby updates every single (sperated) entries on /boot/loader/entries and then generate the /boot/efi/EFI/centos/grub.cfg? >

On Mon, Apr 06, 2020 at 04:03:53PM +0200, Alessandro Baggi wrote: > I'm on 8.1. I'm searching help to see if this is a bug or error by me but > can't find nothing. > Currently I used grubby but it does not write any file that I know like > /boot/efi/EFI/centos/grub.cfg (I tried to remove and add arg but nothing > changed on files), so I don't know where it make

> > Hi, > > 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? > > No idea. I stop looking after I manage to pass the arguments I wanted to the kernel. If you find the problem send an

I think i might have solve it. For some reason grub2-mkconfig doesnt work. (Have no idea why) I manage to solve it with grubby. sudo grubby --args="intel_iommu=on" --update-kernel=ALL For some reason it works. I dont know if it works if my kernel gets upgraded.

Greetings- I have a few custom kernel parameters being passed to a CentOS box via the /boot/grub/grub.conf file. However, if there is a kernel update, and grub.conf is regenerated, how do I ensure my custom parameters are: a. left in place on the older kernels b. added to the new kernel? I would think this should go in /etc/sysconfig/grub but I'm just not finding any documentation or

I am looking at using grubby. My command is: grubby --grub --title "CentOS (2.6.32.60)" --add-kernel=/boot/vmlinuz-2.6.32.60 --initrd=/boot/initrd-2.6.32.60.img --args="ro root=LABEL=/ noapic" --make-default my etc/grub.conf file after running the command is: title CentOS (2.6.32.60) kernel /boot/vmlinuz-2.6.32.60 ro root=LABEL=/ rhgb quiet noapic initrd

Hi. Im trying to set intel_iommu=on on kernel parameters at grub but for some reason it doesnt work. I edit /etc/default/grub file and i add the parameter. then i run grub2-mkconfig -o /boot/efi/EFI/centos/grub.cfg and then i reboot. when i run virt-host-validate i get QEMU: Checking if IOMMU is enabled by kernel: WARN (IOMMU appears to be disabled in kernel. Add intel_iommu=on to kernel

Hi, folks, Well, I get back from vacation, and three CentOS 7 boxes didn't come up this morning (my manager and the other admin did the update & reboot). On these three - but *not* another one or two, and I don't think those others are Dells, they're supermicro's - the 327 kernel fell into the rdosshell, I guess. I finally got one the three up by going back to the 228.14

This is my /proc/cmdline BOOT_IMAGE=(hd0,gpt2)/boot/vmlinuz-4.18.0-147.5.1.el8_1.x86_64 root=UUID=c1bef884-0180-4955-a669-c99a8c64f75a ro crashkernel=auto resume=UUID=0fe1a972-9912-4803-b5ec-265a13a888c1 biosdevname=0 net.ifnames=0 rhgb quiet rd.driver. blacklist=nouveau nomodeset nouveau.modeset=0 acpi_backlight=vendor "acpi_osi=!Windows 2013" "acpi_osi=!Windows 2012" Jerry

As of the latest updates to anaconda and grub2 for Fedora 18, it is now possible to install with /boot as a btrfs subvolume. The way that grub2 is handling this is the "reach down" to the files it needs as if the subvolume was a directory. Is this OK? At this point I am not worried about snapshots or any other complexities. If the subvolume name is known. should grub2 be able to

Hi, After upgrading my workstation to CentOS 7.5 (1804), I had to upgrade my kernel from vanilla to kernel-lt from ELRepo. My NVidia GeForce 210 would only work with the driver provided by NVidia, which in turn required a more recent kernel than 3.0.10. Anyway. Right now here's all the kernels that I have on my workstation: [root at alphamule:~] # rpm -qa | grep -i kernel

Hi, this series adds a couple bits more in v2v to convert Debian/Ubuntu (and derived) guests. The series does not complete the support (see known issues below), but all the patches here should be fit for review and inclusion. The series does not enable the conversion, yet. Known issues: * currently tested with simple local guest images, hence needs testing with real guests on

Hi, I downloaded XEN 3.1 source code on a fedora 6 machine. I did # make world # make install It did not give me an error then when I restarted the machine the Grub did not have 2 options. It had only one option that was the kernel. On loading the OS, when i gave # xend it gives the following errors: [root@localhost sbin]# xend ERROR Internal error: Could not obtain handle on privileged command