I tried using the installer on a linux VM(debian 9,10 and centOS). But it just won't install. SLAPOS installer throws the following error:

 

TASK [slapos-proxy : Run slapos format for initial bootstrap] **********************************************************
fatal: [127.0.0.1]: FAILED! => {"changed": true, "cmd": "PATH=$PATH:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/opt/slapos/bin slapos node format --now --alter_user=True", "delta": "0:00:00.449918", "end": "2019-11-22 08:55:51.303687", "msg": "non-zero return code", "rc": 1, "start": "2019-11-22 08:55:50.853769", "stderr": "2019-11-22 08:55:51 slapos[4498] WARNING Creating new computer data with id 'local_computer'\n2019-11-22 08:55:51 slapos[4498] INFO Adding 20 new partitions\n2019-11-22 08:55:51 slapos[4498] INFO Updating computer\n2019-11-22 08:55:51 slapos[4498] ERROR u'ffff:ffff:ffff:ffff::/64' is not a valid IPv6 address string!\nTraceback (most recent call last):\n  File \"/opt/slapos/eggs/slapos.core-1.5.2-py2.7.egg/slapos/cli/entry.py\", line 300, in run_subcommand\n    result = cmd.run(parsed_args)\n  File \"/opt/slapos/eggs/slapos.core-1.5.2-py2.7.egg/slapos/cli/command.py\", line 50, in run\n    return self.take_action(parsed_args)\n  File \"/opt/slapos/eggs/slapos.core-1.5.2-py2.7.egg/slapos/cli/format.py\", line 128, in take_action\n    do_format(conf=conf)\n  File \"/opt/slapos/eggs/slapos.core-1.5.2-py2.7.egg/slapos/format.py\", line 1401, in do_format\n    use_unique_local_address_block=conf.use_unique_local_address_block)\n  File \"/opt/slapos/eggs/slapos.core-1.5.2-py2.7.egg/slapos/format.py\", line 665, in format\n    partition.address_list.append(self.interface.addIPv6Address())\n  File \"/opt/slapos/eggs/slapos.core-1.5.2-py2.7.egg/slapos/format.py\", line 1227, in addIPv6Address\n    if self._addSystemAddress(addr, netmask, tap=tap):\n  File \"/opt/slapos/eggs/slapos.core-1.5.2-py2.7.egg/slapos/format.py\", line 1058, in _addSystemAddress\n    address_string = '%s/%s' % (address, netmaskToPrefixIPv6(netmask))\n  File \"/opt/slapos/eggs/slapos.core-1.5.2-py2.7.egg/slapos/format.py\", line 179, in netmaskToPrefixIPv6\n    netaddr.strategy.ipv6.str_to_int(netmask)]\n  File \"/opt/slapos/eggs/netaddr-0.7.19-py2.7.egg/netaddr/strategy/ipv6.py\", line 142, in str_to_int\n    raise AddrFormatError('%r is not a valid IPv6 address string!' % addr)\nAddrFormatError: u'ffff:ffff:ffff:ffff::/64' is not a valid IPv6 address string!", "stderr_lines": ["2019-11-22 08:55:51 slapos[4498] WARNING Creating new computer data with id 'local_computer'", "2019-11-22 08:55:51 slapos[4498] INFO Adding 20 new partitions", "2019-11-22 08:55:51 slapos[4498] INFO Updating computer", "2019-11-22 08:55:51 slapos[4498] ERROR u'ffff:ffff:ffff:ffff::/64' is not a valid IPv6 address string!", "Traceback (most recent call last):", "  File \"/opt/slapos/eggs/slapos.core-1.5.2-py2.7.egg/slapos/cli/entry.py\", line 300, in run_subcommand", "    result = cmd.run(parsed_args)", "  File \"/opt/slapos/eggs/slapos.core-1.5.2-py2.7.egg/slapos/cli/command.py\", line 50, in run", "    return self.take_action(parsed_args)", "  File \"/opt/slapos/eggs/slapos.core-1.5.2-py2.7.egg/slapos/cli/format.py\", line 128, in take_action", "    do_format(conf=conf)", "  File \"/opt/slapos/eggs/slapos.core-1.5.2-py2.7.egg/slapos/format.py\", line 1401, in do_format", "    use_unique_local_address_block=conf.use_unique_local_address_block)", "  File \"/opt/slapos/eggs/slapos.core-1.5.2-py2.7.egg/slapos/format.py\", line 665, in format", "    partition.address_list.append(self.interface.addIPv6Address())", "  File \"/opt/slapos/eggs/slapos.core-1.5.2-py2.7.egg/slapos/format.py\", line 1227, in addIPv6Address", "    if self._addSystemAddress(addr, netmask, tap=tap):", "  File \"/opt/slapos/eggs/slapos.core-1.5.2-py2.7.egg/slapos/format.py\", line 1058, in _addSystemAddress", "    address_string = '%s/%s' % (address, netmaskToPrefixIPv6(netmask))", "  File \"/opt/slapos/eggs/slapos.core-1.5.2-py2.7.egg/slapos/format.py\", line 179, in netmaskToPrefixIPv6", "    netaddr.strategy.ipv6.str_to_int(netmask)]", "  File \"/opt/slapos/eggs/netaddr-0.7.19-py2.7.egg/netaddr/strategy/ipv6.py\", line 142, in str_to_int", "    raise AddrFormatError('%r is not a valid IPv6 address string!' % addr)", "AddrFormatError: u'ffff:ffff:ffff:ffff::/64' is not a valid IPv6 address string!"], "stdout": "", "stdout_lines": []}