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When building fakeroot-ng, it is recommended that the --with-memdir configure option be used to direct the shared memory files into a directory that resides on a tmpfs file system. On Debian systems, this is typically the /dev/shm directory. Care must be taken, however, that this directory not reside on a file system that is mounted with the noexec flag, or fakeroot-ng will not be able to function properly. This file lists bugs and limitations of fakeroot-ng. There are three lists: SCOPE - areas that are left, on purpose, outside the scope TODO - lists action items that are simply not yet implemented BUGS - lists functions that are implemented, but have known limitations that will be addressed soonish LIMITATIONS - lists limitations either inherent to the technology, or that are outside the scope of coverage intended in the foreseeable future. SCOPE - When switching users, file permissions do not mimic the real system. For files created as part of the fake root environment, all access is "root" access, regardless of the file's true permissions. TODO - Wider support for "old" syscalls (16 bit getuid, 32bit stat etc.) - Multithreaded debugger - Redirect opens of "character devices" to real device with same major/minor. - In chroot, the actual interpreter file (ld-linux for ELF executable) is searched for in the real root, rather than in the chrooted jail. BUGS - The "wait" type syscalls are only emulated enough to allow two specific debuggers to run: fakeroot-ng and strace - Poor handling of multithreaded programs - mostly solved - Poor handling of 32 bit programs on X86_64 - Files created inside SGID directories do not inherit their gid from the directory. LIMITATIONS - Program has limited access to the fakeroot-ng controlled memory inside the program's address space