Problem to access mounted disk after upgrade to Ubuntu 13.10

[erwan10]

Hi,

After upgrading from Ubuntu 13.04 to Ubuntu 13.10, I am now unable to access the C:\ host disk (Windows 7). Mounting it via the command "sudo mount -t vboxsf C_DRIVE /mnt/win_c" seems successful. But then, the "ls /mnt/win_c" command hangs and never returns. Any idea how to solve this issue ?

Thanks in advance

[cedial]

I am having the same problem and am stumped. I suspect the trouble is with Ubuntu rather than vbox.

[noteirak]

Minimum information needed for assistance.

[erwan10]

Host machine: Laptop IntelCorei5, 8GB memory, OS Windows7/64bit
Guest machine: Ubuntu13.04/32bit (working) upgraded to Ubuntu13.10/32bit (issue described earlier in this thread), 2GB memory set for this virtual machine

Virtualbox: version 4.2.18r88780
Guest Addition: reinstalled after upgrade was performed. Command was "sudo ./VBoxLinuxAdditions.run" taken from mounted directory /media/erwan/VBOXADDITIONS_4.2.18_88780

guest logs in attachment (zip format)

[erwan10]

Hi,

As a side note, I just upgraded to Virtualbox 4.3.0 r89960 and upgraded guest addition accordingly. The problem mentioned earlier no longer exists. I can now mount C_DRIVE to /mnt/win_c and issue "ls /mnt/win_c" without any problem.

The problem seems to be limited to a configuration with virtualbox4.2 + Ubuntu13.10 as guest machine.

[kpenrose]

I didn't see what version of the kernel you were using, but the 3.11 kernel has done something with the readdir command, and the dirops.c file redirects that function from the file_operations structure to something called sf_read_*, but since readdir no longer exists in the linux fs.h file, as it did in previous kernel versions, the guest addition doesn't build correctly. Sorry I can't provide more information than this but I've just discovered the problem and haven't had time to check all of the kernel blogs, etc.