Hi,
I receive the below error when using the resize2fs command on /tmp. The filesystem is ext3.

# resize2fs /dev/mappee/Tmp
resize2fs 1.39 (29-May-2006)
Filesystem at /dev/mapper/Tmp is mounted on /tmp; on-line resizing required
Performing an on-line resize of /dev/mapper/VG00-Tmp to 1048576 (1k) blocks.
resize2fs: Operation not permitted While trying to add group #96

Do any know what this error is and how can I do the resize online.

I tried to umount /tmp but I keep getting busy and I don't fine any process ids when I do the fuser.

The man page for resize2fs tells " It can be used to enlarge or shrink an unmounted file system located on device. " so its clear you need to umount /tmp before you can resize it.
I'm not sure how you used fuser but can you try this command and see if it shows processes using /tmp `fuser -va /tmp`.

You can use resize2fs when you have a mounted filesystems. If online is supported. We uses ext3. I have enlarge a couple of filesystems while the filesystems were mounted.

The problem is when I do a lvs and lvdisplay the filesystem size say 1GB but when I do a df -k the size is another. So I did a resizefs and got the error stated in the previous thread.

/dev/mapper/Tmp 761624 224265 505919 20% /tmp

Tmp VG00 -wi-ao 1.00G

I did a fuser -u /dev/VG00/Tmp and it returned nothing. I also did fuser -va /tmp and it returned nothing.