[issue8487] os.mknod() fails on NFS mounted directories
Charles-Francois Natali
report at bugs.python.org
Wed Apr 21 19:52:39 CEST 2010
Charles-Francois Natali <neologix at free.fr> added the comment:
> Well, this looks like a filesystem problem more than a Python problem.
The error (errno 2) comes from the mknod() system call itself.
Definitely.
@Nikratio
Just to be sure, could you provide the result of:
- strace ~/tmp/test.py from NFS-mounted directory
- the relevant line of "mount" output
- "nfsstat -a" on client (and maybe server)
But you should know that mknod is disabled on some NFS servers for security reasons, and see man mknod:
" POSIX.1-2001 says: "The only portable use of mknod() is to create a FIFO-
special file. If mode is not S_IFIFO or dev is not 0, the behavior of mknod()
is unspecified." However, nowadays one should never use mknod() for this
purpose; one should use mkfifo(3), a function especially defined for this
purpose.
Under Linux, this call cannot be used to create directories. One should make
directories with mkdir(2).
There are many infelicities in the protocol underlying NFS. Some of these
affect mknod()."
So try to avoid mknod over NFS...
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nosy: +neologix
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