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Editorial Team
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Asked: 2026-06-03T04:11:36+00:00

I mounted network drive (running Windows Server 2008) on Ubuntu by adding command //10.10.101.54/docflow

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I mounted network drive (running Windows Server 2008) on Ubuntu by adding command

//10.10.101.54/docflow /opt/lampp/htdocs/mount cifs user=administrator,password=wbaZaja43ik,rwx,user,auto,file_mode=6777,dir_mode=6777,uid=1000,gid=1000

in /etc/fstab but have troubles using PHP functions is_file() or is_dir() on files and directories on that mapped drive. These functions both return FALSE when called on existing files or directories – correct paths checked by file_exists() function which works correctly. PHP is running under ‘administrator’ user and have all privileges needed for manipulation.

Any idea how to solve this?

Thanks!

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1 Answer

  1. Editorial Team

    Quoting from digitalaudiorock at gmail dot com’s comments in the php manual:

    Just a note for anyone who encounters is_dir() returning false on CIFS
    mount points or directories within those mount points on 2.6.31 and
    newer kernels: Apparently in new kernels they’ve started using the
    CIFS serverino option by default. With Windows shares this causes
    huge inode numbers and which apparently can cause is_dir() to return
    false. Adding the noserverino option to the CIFS mount will prevent
    this. This may only occur on 32 systems but I don’t have a 64 bit
    install to test against.

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