diff -r 602120a96072 -r 897aa0c4da4a mercurial/revlogutils/nodemap.py
--- a/mercurial/revlogutils/nodemap.py	Tue Dec 07 15:01:30 2021 +0100
+++ b/mercurial/revlogutils/nodemap.py	Thu Nov 25 18:26:50 2021 +0100
@@ -147,7 +147,7 @@
     if revlog._nodemap_file is None:
         msg = "calling persist nodemap on a revlog without the feature enabled"
         raise error.ProgrammingError(msg)
-    repo.svfs.unlink(revlog._nodemap_file)
+    repo.svfs.tryunlink(revlog._nodemap_file)
 
 
 def persist_nodemap(tr, revlog, pending=False, force=False):