Error after adding a new Oracle Export Directory Location

Our test oracle server is running out of disk space so we mounted a usb drive on /mnt/usbflash named EXPDIR

I also granted read, write on directory to the user used in the export command line.

We can't get the Oracle Enterprise Manager running so I created the above directory through SQL

When I use
/opt/oracle/product/10.2/db_1/bin/expdp user/password@testsid SCHEMAS=schema1 DIRECTORY=EXPDIR LOGFILE=exp1.log DUMPFILE=exp1.dmp

when run this, I get these errors -
ORA-39002: invalid operation
ORA-39070: Unable to open the log file.
ORA-29283: invalid file operation
ORA-06512: at "SYS.UTL_FILE", line 536
ORA-29283: invalid file operation

then it stops

I have 5 schemas to export so I want to do a full export but the file size will be around 18G and I only have 2G free space on our test Linux server.

Please help. I need to get this exported ASAP so we can do test on an upgrade.

Also after this test, I will be importing the live database into the same test server.

So I need help going both ways: expdp and impdp.

Thank you in advance!!!
goldieretrieverAsked:
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Seth SimmonsSr. Systems AdministratorCommented:
does the user account have access permissions to that device?
if you do ls -lh /mnt who is the owner?
if you are using, say oracle user, try chown oracle /mnt/usbflash as root
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slightwv (䄆 Netminder) Commented:
It may be possible Oracle sees the USB drive as a NAS.

There are specific mount options needed to allow Oracle to use a NAS.

Check out the following doc (it is a 10gR1 doc but should be the same for 10gR2):
NFS Mount Options
http://docs.oracle.com/html/B14399_01/app_nas.htm#CHDIAGAD
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goldieretrieverAuthor Commented:
Thank you for your quick response - this solution worked.
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