efibootmgr Could not prepare Boot variable: Read-only file system

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ccc-lab-zurfun501 ~ # efibootmgr -c -d /dev/sda -p 1 -L "funtoo" -l '\kernel-genkernel-x86_64-4.17.5-gentoo' -u 'initrd=\initramfs-genkernel-x86_64-4.17.5-gentoo'
Could not prepare Boot variable: Read-only file system

ccc-lab-zurfun501 ~ # mount /sys/firmware/efi/efivars -o rw,remount
ccc-lab-zurfun501 ~ # efibootmgr -c -d /dev/sda -p 1 -L "funtoo" -l '\kernel-genkernel-x86_64-4.17.5-gentoo' -u 'initrd=\initramfs-genkernel-x86_64-4.17.5-gentoo'
BootCurrent: 0005
BootOrder: 0004,0005,0000,0001,0002,0003
Boot0000* EFI Virtual disk (0.0)
Boot0001* EFI VMware Virtual IDE CDROM Drive (IDE 0:0)
Boot0002* EFI Network
Boot0003* EFI Internal Shell (Unsupported option)
Boot0005* funtoo1
Boot0004* funtoo
ccc-lab-zurfun501 ~ #

Comments

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