Hi, tools like `mv` currently perform a direct renameat2 syscall. This is problematic for software like fakechroot which allows one to perform a fake chroot call without being root by intercepting and overriding libc functions using LD_PRELOAD. It is currently not possible to perform a `mv` with recent versions of coreutils inside a fakechroot environment because coreutils uses the renameat2 syscall directly instead of using a libc function.
This problem could be solved by coreutils using the glibc renameat2 function in glibc version 2.28 and newer. If glibc is older, coreutils could fall back to performing a plain syscall instead to keep backwards compatibility. Thanks! cheers, josch
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