Why does cygwin's scp set the permssions to 000 when copying to Linux?

Question

When I'm copying files from my Windows box to a Linux box using cygwin's scp, the permissions come out as 000. This doesn't happen when I copy from Linux to Linux, so I'm thinking it's related to some configuration on my Windows box. But where is that configuration?

Edit: Under bash, umask prints 0022. The behavior of scp is the same, whether I'm running bash or CMD.

Answer 1

Here are some other pages discussing the issue. The first is about scp, while the second is about 000 permissions with another programs:

• https://askubuntu.com/questions/124944/incorrect-permissions-after-copying-over-scp
• https://stackoverflow.com/questions/5828037/cygwin-sets-file-permission-to-000
• http://cygwin.1069669.n5.nabble.com/vim-and-file-permissions-on-Windows-7-td61390.html

Apparently this is a problem with Cygwin's emulation of Unix-type file permissions on Windows filesystems with ACLs. The solution is to alter Cygwin's /etc/fstab file to make Cygwin ignore ACLs. Copying from one of those:

cp /etc/fstab /etc/fstab.install

echo "none /cygdrive cygdrive binary,posix=0,user,noacl 0 0" >> /etc/fstab

To activate the new setting, logout and login again logout ssh Adminstrator@hostname Then stop and start your cygwin processes.

Answer 2

Run umask to see if the rights are being masked off. The fewer the bits set, the more rights that should be set. umask 022 is a common setting (disabling writing by group and other).