Permission problems after install of F16 comming from F14.

[Erik P. Olsen]

On 07/06/12 01:27, Ed Greshko wrote:
> On 06/07/2012 05:26 AM, Erik P. Olsen wrote:
>> I have a number of F14 partitions which must be mounted unchanged on the new F16
>> system. It turns out that I get unexpected permission problems with this approach.
>> I use the same user name on both systems but on F14 I got userID 500 whereas on F16
>> it became 1000. I wasn't aware of that but learned it the hard way. When I chowned
>> the permissions to 1000:1000 it worked on F16 but now not on F14.
>>
>> What is the proper way to fix this problem? I am tempted to reinstall F16 and force
>> my userID to 500, but the system warns me not to create userIDs<  1000. It is not
>> feasible to clone the partitions due to space constrains so I am not able to have
>> identical partitions with different permissions.
>>
>
> The "proper" way to fix this is to do it on the F14 system.
>
> Change your password entry to have uid:gid of 1000:1000.  Make the change to the
> group file to change it to 1000 as well.
>
> Then, go to all the top of all partitions/directories owned by 500 and chown -R
> 1000:1000.  In other words, make all the changes on the F14 side.
>
> I had to go through this process when I installed F16 since my RHELv4 system had me
> as 500:500 and I NFS mount my directories from there.  Just took 5 or so minutes.
>
> Reinstalls are never needed to change a user's gid/uid.
>
I thought of this at the very beginning but I never found out how to change 
userID from 500 to 1000. Please explain how to do that.

Thanks
-- 
Erik