Merge pull request #3749 from rodarima/master

Fall back to copyPath if link fails with EPERM
2020-06-29 13:31:24 +02:00
parent 3fcbe30eea 3a642187c3
commit 64232f3ea6
1 changed files with 5 additions and 2 deletions
@@ -1950,8 +1950,11 @@ void linkOrCopy(const Path & from, const Path & to)
        /* Hard-linking fails if we exceed the maximum link count on a
           file (e.g. 32000 of ext3), which is quite possible after a
           'nix-store --optimise'. FIXME: actually, why don't we just
-           bind-mount in this case? */
-        if (errno != EMLINK)
+           bind-mount in this case?
+           
+           It can also fail with EPERM in BeegFS v7 and earlier versions
+           which don't allow hard-links to other directories */
+        if (errno != EMLINK && errno != EPERM)
            throw SysError("linking '%s' to '%s'", to, from);
        copyPath(from, to);
    }