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(I'll start by acknowledging that there are lots of questions and answers out there about mount permissions and I have tried a lot of the proposed solutions without success.)

I'm on Ubuntu 20.04 and I'm using CIFS to mount a directory from a Windows 10 machine. I'd like all directories and files to have write permission but my directories always have 555 permissions, while files have 755.

Here's my current /etc/fstab entry:

//MY-WINDOWS-BOX/Share /home/someuser/share cifs credentials=/home/someuser/.share-credentials,iocharset=utf8,sec=ntlmssp,vers=3,uid=1000,gid=1000,nofail,noauto,x-systemd.automount,x-systemd.after=network-online.target 0 0

I've tried these options (along with others that I can't remember) and I get the same result:

  • file_mode=0755,dir_mode=0755,nounix
  • noperm
  • rw

I've also verified that the Windows user in the credentials file has all permissions on the shared directory and its files/sub-directories.

nCMr0l6OubNHphE1X8ya
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1 Answers1

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Apparently the issue was on the Windows side.

I logged in to my Windows box and verified again that both the NTFS permissions and the sharing permissions gave my user full access to the folder and its files/sub-directories. Even though everything looked correct, I decided to try running chmod -R 755 from Git bash (which I happened to have installed) just to see what would happen. This resolved the issue.

nCMr0l6OubNHphE1X8ya
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