The above was just to clear the warnings.
Then, oh, the segmentation fault is out again.
For that one, I read a lot of things and if you're willing to try
The easiest is:
mv /etc/apt/sources.list.d/*.list /root/
omv-update
No more errors?
no errors:
Time to upgrade.
still have errors:
alias apt-get='GNUTLS_CPUID_OVERRIDE=0x1 apt-get'
omv-update