I applied 'sudo sysctl kernel.unprivileged_bpf_disabled=1'
But it is still failed while install 'sudo apt install linux-image-5.11.0-46-generic'
dpkg: error processing archive /var/cache/apt/archives/linux-image-5.11.0-46-generic_5.11.0-46.51~20.04.1_amd64.deb (--unpack):
unable to open '/boot/vmlinuz-5.11.0-46-generic.dpkg-new': Operation not permitted
I applied 'sudo sysctl kernel. unprivileged_ bpf_disabled= 1'
But it is still failed while install 'sudo apt install linux-image- 5.11.0- 46-generic'
dpkg: error processing archive /var/cache/ apt/archives/ linux-image- 5.11.0- 46-generic_ 5.11.0- 46.51~20. 04.1_amd64. deb (--unpack): vmlinuz- 5.11.0- 46-generic. dpkg-new' : Operation not permitted
unable to open '/boot/