광훈 최 wrote:
> Can I use two different sets of cygwin installations safely?
>
> For example, one set may include the up-to-date full packages, while
> the other may include somewhat old-dated, partially installed
> packages.
>
> The second set might look strange to you, but I have to keep it
> because I need to maintain the same cygwin environment as what all of
> my colleagues have in order to develop some software together.
>
> It would be the best if I can configure the cygwin setup procedure to
> satisfy this requirement.
>
> Thanks in advance
>
> K. Choi
>
> ________________________________________________________
> 180도 달라진 야후! 메일 - 컴퓨터와 휴대폰으로 언제 어디서나 새로운 야후! 메일을 확인해보세요.
> http://kr.content.mail.yahoo.com/cgland
I think that you want to have two completely different cygwins, say one in
c:\cygwin and one in c:\cygwin_old. Use two different copies of setup
(c:\cygwin\arc\setup.exe and c:\cygwin_old\arc\setup.exe) each with its own
package repository (c:\cygwin\arc and c:\cygwin_old\arc) to maintain them.
Then use only one at a time and start them with batch files. Note that you can
run multiple cygwin windows at a time but they all have to be started from the
same batch file. (Modify to your specifics and taste.)
@REM this is CYGWIN.BAT
@echo off
PATH=c:\cygwin;%PATH%
set HOME=/home/username
set CYGWIN=check_case:adjust export title nostrip_title
C:
chdir C:\cygwin
bin\mount -f -u -b "c:/cygwin/bin" "/usr/bin"
bin\mount -f -u -b "c:/cygwin/lib" "/usr/lib"
bin\mount -f -u -b "c:/cygwin" "/"
bin\bash --login -I
exit
and
@REM this is CYGWIN_OLD.BAT
@echo off
PATH=c:\cygwin_old;%PATH%
set HOME=/home/username
set CYGWIN=check_case:adjust export title nostrip_title
C:
chdir C:\cygwin_old
bin\mount -f -u -b "c:/cygwin_old/bin" "/usr/bin"
bin\mount -f -u -b "c:/cygwin_old/lib" "/usr/lib"
bin\mount -f -u -b "c:/cygwin_old" "/"
bin\bash --login -I
exit
Directories that you want to share between both installations can be put in
either installation (or outside of both) and mounted.
mount -f -u -b "c:/cygwin/home" "/home"
or
mount -f -u -b "c:/cygwin_common/home" "/home"
Also, check the mail archives. I know about the following mail threads, though
they do not may or may not be of help (and there may be others).
- January 2005: Multiple installations and 3PPs
- October 2004: Spurious "You have multiple copies of cygwin1.dll on your
system."
If you give it a try, remember that I haven't tried it, so don't be surprised.
:-)
Good luck.
- Barry
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