[GRASS-user] shared access to mapsets

[Daniel Farnan]

Why not just re-create the Location on the new machine and set the files
into it?
I have copied a mapset from a windows machine Location to a Linux machine
Location I generated with the same parameters seperately (cut and pase), and
it shows in the GUI in the choice of mapsets window. With the necessary
files transferred from the thumb drive to the C: drive in (or into) a new
location, copying and pasting the mapsets should work to set up the work you
have already done. If you are the only administrator, figuring out how to
open and run GRASS on the new PC seems to be the only hurdle, other than
re-creating the Location.

-----Original Message-----
From: grassuser-bounces at grass.itc.it
[mailto:grassuser-bounces at grass.itc.it]On Behalf Of Gerald Nelson
Sent: Thursday, January 18, 2007 12:59 PM
To: Glynn Clements; Duncan Golicher
Cc: grassuser at grass.itc.it; grass-dev at grass.itc.it
Subject: Re: [GRASS-user] shared access to mapsets


That is an incredible list of things you have to do!!! Jerry

---- Original message ----
>Date: Thu, 18 Jan 2007 20:36:31 +0000
>From: Glynn Clements <glynn at gclements.plus.com>  
>Subject: Re: [GRASS-user] shared access to mapsets  
>To: Duncan Golicher <dgoliche at sclc.ecosur.mx>
>Cc: grassuser at grass.itc.it, grass-dev at grass.itc.it
>
>
>[CC'd to grass-dev]
>
>Duncan Golicher wrote:
>
>> Can anyone answer a very simple question. I am running grass6.1 under 
>> Cygwin with all my data on an external hard drive. I recently installed 
>> grass on a new PC. I now can't enter any of the mapsets I created on the 
>> first machine from the second and can only get read access to them from 
>> new mapsets. I have a different username on the second PC so I obviously 
>> don't have permissions. What I can't find out, after Googling and 
>> searching the list, are the steps I should take to change the 
>> permissions, or perhaps the username in cygwin, so I can just share the 
>> database between the two machines. 
>
>Apart from any access controls implemented by the OS, GRASS itself
>won't let you select a mapset as the current mapset unless you are the
>owner of the mapset directory.
>
>[This check is disabled on the native Windows version, as the
>functions which it uses aren't present there.]
>
>Note to developers: I'm starting to think that we should seriously
>reconsider this restriction. Now that the .gislock file is in the
>mapset directory rather than the home directory, is there any point in
>having this check?
>
>In general, to change the owner of a file under Windows XP Pro (I
>don't know if XP Home is any different), perform the following
>(excessively complex) sequence of steps:
>
>[The process is complicated by the fact that even an administrator
>cannot "give away" files; you have to permit the intended recipient to
>take ownership, then have the recipient actually take ownership of the
>files.]
>
>+ Log in using either the account which owns the file or an account
>with administrator privileges.
>
>+ In Explorer, choose the "Folder Options ..." item from the "Tools"
>menu.
>
>+ Select the "View" tab in the Folder Options dialog.
>
>+ Uncheck the "Use simple file sharing (Recommended)" option.
>
>+ Click "OK".
>
>+ In Explorer, select the file or directory whose ownership you wish
>to change.
>
>+ Select the "Properties" option from either the "File" menu or the
>context menu (or Alt+Enter).
>
>+ Select the "Security" tab (this tab is only available once you have
>disabled simple file sharing as directed above).
>
>+ Click the "Advanced" button.
>
>+ The "Permissions" tab should be selected.
>
>+ Click the "Add..." button.
>
>+ Enter the name of the user to whom you wish to transfer ownership.
>
>+ Press OK.
>
>+ Check the box in the "Take Ownership" row and the "Allow" column.
>
>+ Press OK.
>
>+ Check the "Replace permission entries ..." option.
>
>+ Press OK.
>
>+ Press OK (for the Properties dialog).
>
>+ Log in as the user to whom you wish to transfer ownership.
>
>+ Disable simple file sharing as directed above (this is a per-user
>setting).
>
>+ Select the mapset directory in Explorer.
>
>+ Select the "Properties" option from either the "File" menu or the
>context menu.
>
>+ Select the "Security" tab.
>
>+ Click the "Advanced" button.
>
>+ Select the "Owner" tab.
>
>+ Select your name from the list.
>
>+ Check the "Replace owner on subcontainers and objects" option.
>
>+ Press OK.
>
>+ Press OK (for the Properties dialog).
>
>Optional: once you've changed the owner, you can remove the "take
>ownership" permission entry. Also, you can re-enable simple file
>sharing if desired; this will hide the Security tab in the Properties
>dialog.
>
>Tip: to save having to switch between your normal account and an
>administrative account, create a shortcut to "C:\WINDOWS\explorer.exe"
>with the "Run with different credentials" option enabled (click the
>"Advanced" button in the shortcut's properties dialog). This lets you
>do file management using an administrative account without having to
>switch between logins. A few things don't quite work, e.g. 
>notifications (you have to manually refresh the view with F5 whenever
>you change something).
>
>-- 
>Glynn Clements <glynn at gclements.plus.com>
>
>_______________________________________________
>grassuser mailing list
>grassuser at grass.itc.it
>http://grass.itc.it/mailman/listinfo/grassuser
Gerald Nelson
Professor, Dept. of Agricultural and Consumer Economics
University of Illinois, Urbana-Champaign
office: 217-333-6465 
cell: 217-390-7888
315 Mumford Hall
1301 W. Gregory
Urbana, IL 61801

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