Ok, the problem is this set -u here https://git.launchpad.net/ubuntu/+source/grub2/tree/debian/patches/ubuntu-zfs-enhance-support.patch?id=06f86533332124471075e20d139ceb97ce7a655b#n95
It will error out when an undefined variable is found.
Ok, the problem is this set -u here https:/ /git.launchpad. net/ubuntu/ +source/ grub2/tree/ debian/ patches/ ubuntu- zfs-enhance- support. patch?id= 06f865333321244 71075e20d139ceb 97ce7a655b# n95
It will error out when an undefined variable is found.