I tried to move a few files to a subfolder on OS X. One refused to move. It said
Operation not permitted. I tried again as root:
$ sudo mv file subfolder/
mv: rename file to subfolder/file: Operation not permitted
$ sudo mv file filex
mv: rename file to filex: Operation not permitted
$ lsattr file
lsattr: Inappropriate ioctl for device While reading flags on file
lsattr on other files; all files I tried gave me the same message:
Inappropriate ioctl for device While reading...
Coming from Linux, I did not know about flags so here is the output of
ls -leO@ file:
$ ls -leO@ file otherfile
-rwxrwxrwx 1 eeytan staff uchg 79549 Nov 11 2010 file
-rw-r--r-- 1 eeytan staff - 5071 Sep 7 02:37 otherfile
I tried the OS X Disk Utility; it said there were no errors on my disk. What's going on here?