initramfs-tools-ubuntu-core is a package specific to the boot of Ubuntu Core, so unrelated to your issue.
Reassigning to initramfs-tools, which is at least a package that you have installed.
Why does your bug report title mention the use of zstd?
initramfs- tools-ubuntu- core is a package specific to the boot of Ubuntu Core, so unrelated to your issue.
Reassigning to initramfs-tools, which is at least a package that you have installed.
Why does your bug report title mention the use of zstd?