I used the migration assistant to transfer files from my MacBook Pro (2011) to my iMac. Both computers run Mavericks. Now I'm not allowed to modify files which originate from my 'old' computer because of file permissions. The folders have this red sign and if I look with GetInfo the only authority with read&write access is "fetching".
I don't know whether it is relevant but after migration also the computer name changed from …iMac to …MacBook Pro and the transferred files are in a folder which is at the same hierarchy like my home folder of my iMac. Any suggestion how to obtain write access to my transferred files?
Terminal outputs of file properties per Douggro's request:
mac-Myname:~ iMacMyname$ ls -l /Users/iMacMyname/Desktop
total 0
drwxr-xr-x 7 iMacMyname staff 238 Jul 10 2013 Universal
mac-Myname:~ iMacMyname$ ls -l /Users/MacBookMyname/Desktop
ls: Desktop: Permission denied`
Best Answer
I have just found a fix!
Basically "Get Info" then at the bottom of the window next to the gear icon click on the + button. In the next window choose your account name. It creates a new permission category. then just choose Read & Write and apply to all enclosed. I have just done this to 3 machines. It's magic!! and after 3 hours of frustration.