Why am I getting "Invalid object name 'sys.sysobjvalues'."
This is one of the tables that can only be accessed over DAC, from this blog


  They had been moved to the imageval column of sys.sysobjvalues, which can only be accessed when using the Dedicated Admin Connection (DAC).


Prolly not a good idea, but for proof it'll work connect to DAC (-S admin:localhost on Linux)

sqlcmd -S admin:localhost -U sa -q "SELECT * FROM sys.sysobjvalues;" | less -S