fai-make-nfsroot fails

fai-make-nfsroot

fai-make-nfsroot -k                                                                                                                               10.7s  Wed 20 Oct 2021 02:50:30 PM CEST
Upgrading nfsroot and installing new packages into the nfsroot.
Hit:1 http://deb.debian.org/debian buster InRelease
Hit:2 http://fai-project.org/download buster InRelease
Hit:3 http://deb.debian.org/debian-security buster/updates InRelease
Reading package lists... Done
Reading package lists... Done
Building dependency tree
Reading state information... Done
Calculating upgrade... Done
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
Adding additional packages to /srv/fai/nfsroot:
nfs-common fai-nfsroot rpcbind rsync lshw procinfo dump reiserfsprogs xfsprogs xfsdump btrfs-progs hwinfo hdparm smartmontools nvme-cli rdate zile numactl udns-utils netcat-traditional nmap pxelinux syslinux-common ca-certificates usbutils pciutils ssh netselect mdadm dracut live-boot- initramfs-tools- dracut-config-generic dracut-network sysvinit-core systemd-sysv- curl lftp less ntpdate dosfstools lvm2 psmisc dialog console-common kbd xz-utils pigz grub-pc grub-efi-amd64-bin efibootmgr linux-image-amd64 fdisk gpg
chmod: missing operand after ‘a+r’
Try 'chmod --help' for more information.
ERROR: No initrd was created. Check the package name of the linux-image package in /etc/fai/NFSROOT.
Log file written to /var/log/fai/fai-make-nfsroot.log