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UV hardlink files #1622
Description
on my machine when installing the dependencies with make install-base I got a warning:
Warning: Failed to hardlink files; falling back to full copy. This may lead to degraded performance.
If the cache and target directories are on different filesystems, hardlinking may not be supported.
If this is intentional, set `export UV_LINK_MODE=copy` or use `--link-mode=copy` to suppress this warning.
Installed 22 packages in 6.27s
Is it something ok? It happens on your systems as well? Should we add the --link-mode=copy as a default?
Activity
[-]UV hradlink files[/-][+]UV hardlink files[/+]FallenDeity commentedon Jul 25, 2026
can you mention the directories/file system you are operating out of, the project dir (where .venv is created) and the
UV_CACHE_DIR(this is usually some global path) looks like both of them might be on different file systems or drives which is causing thisphalt commentedon Jul 27, 2026
I've never had to do that myself!
Naramsim commentedon Jul 28, 2026
I'm working as
alessin a fedora 44 machine:The var isnt' set. I also found out that:
If ran with
sudo, bash cannot findruff.Note:
Using CPython 3.14.6 interpreter at: /usr/bin/python3.14I cleaned the.venvfolder and ran auv cache cleanbut it didn't help.