I can build Go from tip on Plan 9 using a local repo clone. I want to build it using a repo exported from a Linux box (via u9fs) -- because of codereview extensions and keeping a consistent repo. Trying to build a remotely mounted clone, I get:

cpue% ./all.rc

# Building C bootstrap tool.

cmd/dist

# Building compilers and Go bootstrap tool for host, plan9/386.

*** failed to import extension codereview from $GOROOT/lib/codereview/codereview.py: [Errno 12] Invalid argument

abort: There is no Mercurial repository here (.hg not found)

go tool dist: FAILED: /bin/hg identify -b: '/n/zotac/usr/local/go/VERSION.cache' does not exist

cpue%

/n/zotac is the Linux filesystem that is served by u9fs. Any hints?

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