- install.sh: trim whitespace-only UNSLOTH_TORCH_INDEX_URL/_FAMILY before the
_torch_index_pinned guard, matching get_torch_index_url, so a blank override no
longer skips the WSL bootstrap and Radeon/Strix reroutes while detection still
picks the normal index.
- install.sh / install.ps1 / setup.ps1 / install_python_stack.py: force the torch
2.11 floor only for the gfx families with the <2.11 _grouped_mm bug (gfx120X-all,
gfx1151, gfx1150). A pinned override to gfx110X-all/gfx90a/gfx908 stays on the
default range, matching the automatic AMD path.
- install_python_stack.py _ensure_cuda_torch: treat an untagged CUDA build under a
CUDA pin as a family mismatch (reinstall), and match cuXXX pins narrowly (cu +
digits) so a custom/current mirror leaf no longer forces CUDA over a CPU/ROCm venv.
- install_python_stack.py _ensure_rocm_torch: reinstall when an explicit ROCm pin
names a different ROCm family than the already-installed ROCm torch (the ROCm
analogue of the CUDA cuXXX mismatch repair).
Adds tests for each case.
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