So ..... found some time to test now

- brand new binary from ghobson (the haswell one)

./hodlminer-avx2-ubuntu14-haswell --version
hodlminer 2.4.4
 built on Jan  5 2018
 features: x86_64 PHE SSE2 AVX AVX2 XOP
libcurl/7.47.0 OpenSSL/1.0.2g zlib/1.2.8 libidn/1.32 librtmp/2.3
libjansson 2.5

- ubuntu 16.04

at least it is running right now with an even better hashrate than the version I used before :-)
I did NOT restart ROIcoind since I did this before with -reindex and -rescan -zapwallettxs respective.

Keep you informed when (or if) I got the first block solo mining, will take some hours