[[!comment format=mdwn
 username="https://www.google.com/accounts/o8/id?id=AItOawnBJ6Dv1glxzzi4qIzGFNa6F-mfHIvv9Ck"
 nickname="Jim"
 subject="Case sensitivity"
 date="2011-11-22T18:51:03Z"
 content="""
I agree, it's weird, but that's what I'm seeing:

    #!/bin/sh
    
    if [ $UID != 0 ] ; then echo \"need root\" ; exit 1 ; fi
    
    set -x
    
    # make image
    cd /tmp
    dd if=/dev/zero of=diskimage bs=1M count=40
    DEV=$(losetup --find --show diskimage)
    
    # make FAT32 fs
    mkfs.vfat -F 32 $DEV
    
    # mount it
    mkdir annex
    mount -o shortname=mixed,utf8=1 $DEV annex
    
    # show bug
    ( 
        cd annex
        mkdir zP
        mkdir Zp
        ls Zp
        ls
        touch zP
        touch Zp
    )
    
    # cleanup
    umount annex
    rm -r annex
    losetup -d $DEV
    rm diskimage
    
    # info
    uname -a

Output:

    + cd /tmp
    + dd if=/dev/zero of=diskimage bs=1M count=40
    40+0 records in
    40+0 records out
    41943040 bytes (42 MB) copied, 0.0847729 s, 495 MB/s
    ++ losetup --find --show diskimage
    + DEV=/dev/loop0
    + mkfs.vfat -F 32 /dev/loop0
    mkfs.vfat 3.0.9 (31 Jan 2010)
    Loop device does not match a floppy size, using default hd params
    + mkdir annex
    + mount -o shortname=mixed,utf8=1 /dev/loop0 annex
    + cd annex
    + mkdir zP
    + mkdir Zp
    mkdir: cannot create directory `Zp': File exists
    + ls Zp
    ls: cannot access Zp: No such file or directory
    + ls
    zP
    + touch zP
    + touch Zp
    touch: cannot touch `Zp': File exists
    + umount annex
    + rm -r annex
    + losetup -d /dev/loop0
    + rm diskimage
    + uname -a
    Linux pilot 3.0.3+ #1 SMP Mon Aug 29 15:21:18 EDT 2011 x86_64 GNU/Linux

"""]]