[NTG-context] minimals: cannot find cmsy10.pfb

While testing Norbert's latest Debian packages, I ran across the following font problem with the recent ConTeXt minimals. The following test file: ========= cut here ============= \usetypescript[palatino][ec] \definetypeface [palatino] [mm] [math] [euler] [euler] [rscale=1.03] \setupbodyfont[palatino,11pt] \starttext $\equiv$ \stoptext ========= cut here ============= fails with: !pdfTeX error: pdftex (file cmsy10.pfb): cannot open Type 1 font file for readi ng ==> Fatal error occurred, no output PDF file produced! Among the many map files that are read in, only original-public-lm.map mentions cmsy10.pfb, and it contains this mapping: cmsy10 CMSY10