Following on from the last email about br-ex causing everything to baulk, I manually created the br-ex using brctl addbr br-ex and got past that hurdle.

But now falling over with another one

ERROR oslo_db.sqlalchemy.exc_filters InternalError: (1071, u'Specified key was too long; max key length is 767 bytes')

ERROR oslo_db.sqlalchemy.exc_filters

Error during database migration: (pymysql.err.InternalError) (1071, u'Specified key was too long; max key length is 767 bytes') [SQL: u'\nALTER TABLE quota_usages CHANGE COLUMN resource resource VARCHAR(300)'] (Background on this error at: http://sqlalche.me/e/2j85)

Base OS is CentOS 7.5.

I’ve found this which looks similar - https://review.openstack.org/#/c/626146/ - but I’ve no idea how to apply it to my Devstack installation.

I’d appreciate some assistance please.

David