Merge pull request #10160 from dezgeg/pr-unset-build-hook-in-nixos-install

nixos-install: Don't use NIX_BUILD_HOOK from caller's environment

Changed files
+3
nixos
modules
installer
+3
nixos/modules/installer/tools/nixos-install.sh
···
ln -sf @shell@ $mountPoint/bin/sh
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# Build hooks likely won't function correctly in the minimal chroot; just disable them.
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unset NIX_BUILD_HOOK
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# Make the build below copy paths from the CD if possible. Note that
# /tmp/root in the chroot is the root of the CD.
export NIX_OTHER_STORES=/tmp/root/nix:$NIX_OTHER_STORES