Package: installation-reports
Version: 2.62
Severity: grave

WARNING: **: no packages matching running kernel 5.10.0-9-amd64 in
archive

I tried the images at
http://deb.devuan.org/devuan/dists/chimaera/main/installer-amd64/20210731+deb11u1+devuan1/images/netboot/

There is no 5.10.0-9 kernel in the repository so this error is expected
https://pkginfo.devuan.org/cgi-bin/policy-query.html?c=package&q=linux-image-5%5C.10%5C.0-9.*&x=submit