Downloaded contextbeta as usual:

ConTeXt  ver: 2010.03.18 14:42 MKIV  fmt: 2010.3.20  int: english/english

Suddenly got this error from: \setupinterlinespace[big]

! Missing number, treated as zero.

<to be read again>                    b

<argument> b

            ig

\doifdimensionelse ...mensionelse \scratchdimen #1

                                                  pt\relax 

\dosetspecifiedrelativeinterlinespace ...else {#1}

                                                   {\setupspecifiedinterline...

\dosetuprelativeinterlinespace ...erlinespace {#1}

                                                  \fi 

\next1 #1,->\dosetuprelativeinterlinespace {#1}

                                               \doprocesscommaitem 

Then did luatools --generate that now broke:

02 ~/Documents/TeX/context/beta/bin: luatools --generate

LuaTools | fileio: variable 'SELFAUTOLOC' set to '/Users/hans/Documents/TeX/context/beta/bin'

LuaTools | fileio: variable 'SELFAUTODIR' set to '/Users/hans/Documents/TeX/context/beta'

LuaTools | fileio: variable 'SELFAUTOPARENT' set to '/Users/hans/Documents/TeX/context'

LuaTools | fileio: variable 'TEXMFCNF' set to '{$SELFAUTODIR,$SELFAUTOPARENT}{,{/share,}/texmf{-local,.local,}/web2c}'

LuaTools | fileio: no cnf files found (TEXMFCNF may not be set/known)

LuaTools |

LuaTools | runtime: 0.053 seconds

103 ~/Documents/TeX/context/beta/bin: 

Switching back to my previous version of contextbeta gave no problems. Processing lustools --generate without problems. Especially the previous culprit now does:

LuaTools | fileio: variable 'TEXMFCNF' set to '{$SELFAUTODIR,$SELFAUTOPARENT}{,{/share,}/texmf{-local,.local,}/web2c}'

WHAT HAPPENED?