I tried adding:
GRUB_CMDLINE_LINUX="selinux=0"
to /etc/default/grub, then ran:
grub2-mkconfig -o /boot/efi/EFI/fedora/grub.cfg
That successfully added the following to grub.cfg:
if [ -z "${kernelopts}" ]; then
set kernelopts="root=UUID=36a097ba-7577-4cc9-977e-df76c6590c48 ro selinux=0 "
fi
However, /boot/efi/EFI/fedora/grubenv didn't contain "selinux=0". So I
manually added that via:
grub2-editenv - set "kernelopts=BOOT_IMAGE=(hd1,msdos2)/vmlinuz-5.8.0-1.fc33.aarch64
root=UUID=36a097ba-7577-4cc9-977e-df76c6590c48 ro selinux=0 "
But that doesn't seem to have any effect. After booting, I still see:
# cat /proc/cmdline
BOOT_IMAGE=(hd1,msdos2)/vmlinuz-5.8.0-1.fc33.aarch64
root=UUID=36a097ba-7577-4cc9-977e-df76c6590c48 ro
Where does the kernel get its command line on RPi?
Steve
On 9/8/20 3:56 PM, Steven A. Falco wrote:
I'd like to add a kernel command line option (selinux=0) on a raspberry pi.
Normally, I'd edit /etc/default/grub and append that setting to the
GRUB_CMDLINE_LINUX variable, then run grub2-mkconfig to regenerate the
/boot/efi/EFI/fedora/grub.cfg file.
However, on the pi, /etc/default/grub doesn't have a GRUB_CMDLINE_LINUX
variable defined. Yet, I do see this line in /boot/efi/EFI/fedora/grub.cfg:
set kernelopts="root=UUID=36a097ba-7577-4cc9-977e-df76c6590c48 ro "
To accomplish what I want, should I add a new GRUB_CMDLINE_LINUX variable to
/etc/default/grub, for example:
GRUB_CMDLINE_LINUX="root=UUID=36a097ba-7577-4cc9-977e-df76c6590c48 ro selinux=0"
Or is there a more correct way to do this?
Steve
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