LVM Ext2 always shows 0 free space!

[TheFu]

Yeah, I know how to read and I did read that. Still leaves why I'm having a legitimate problem and getting newbie commands to run.
There must be something easy I am missing or something wrong between versions of LVM as I stated the Ubuntu versions.

We can't read minds and have to rule out common mistakes first.

Which file system is inside the LV? Normal ext4 or something funky?

LVM commands for PEs, VGs, and LVs don't show free/used storage. By posting that data, I classed you as a newbie to LVM.
Usually when someone describes what they did, but doesn't show the actual commands used AND the output, but the results they expected didn't happen, it is because they used the wrong commands or had incorrect expectations. So, treat us like 7 yr old children and show us exactly what you did to prove why some storage amount should appear to be free in /mnt/fogimages.

Please.

df -hT /mnt/fogimages  # show utilization before
# ls -l  /mnt/fogimages/*jpg    # show the files, permissions, sizes BEFORE the delete
# rm /mnt/fogimages/*jpg   # remove lots of files using full paths
# ls -l  /mnt/fogimages/*jpg    # show the files are gone AFTER the delete
df -hT /mnt/fogimages  # show utilization after

At this point, I have a few guesses for what is happening, but need to see some commands AND output to make better guesses.
My guesses:
* btrfs used somehow. btrfs lies about utilization to du and df. Unlikely since btrfs does LVM-like management. To get real disk information under btrfs, must use btrfs utilities.
* somehow the 5% reserved for root storage got filled, so df isn't reporting less than 100% until you are really at 95% used. tune2fs will show the current file system config for root reserved blocks on ext3/4 file systems.
* the deletions failed due to permissions. Unlikely, but ...
* may be using some less common file system.
* snapshot mounted, not the main LV? In the text above you mounted /mnt/images, but that isn't what is being shown in commands later.
* Bug somewhere. Doubtful it is in LVM, IMHO. Check the bug reporting system.

But the output from some commands will quickly remove most of those from the possibilities. People do weird things and forget they did, then never mention those weird things when troubleshooting later.

[mfahey]

I have provided all information as requested. What other information would you like?

[QIII]

Please post the full results of the commands as requested.

[CharlesA]

Please post the full results of the commands as requested.

In addition to this, can you please post the output of this command?

mount