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Re: [ANNOUNCEMENT] [1.7] Updated: cygwin-1.7.0-63

On 11/3/2009 9:54 AM, Corinna Vinschen wrote:
- Add a bigger patch which allows by default to run multiple Cygwin
  installations in parallel without interferring and without interaction
  between processes running within these installations.  This is done by
  computing a key value from the installation path of the Cygwin DLL
  which is used when creating shared objects used for interprocess
  communication and synchronization.  This means, you can have multiple
  concurrent Cygwin 1.7 installations in parallel running alongside
  without knowing of each other.  However, this also implies that you
  should not try to have one process in installation A interacting with
  any process running in installation B.  The results might not be what
  you expect.  Keep different Cygwin installations separate.  This
  change comes along with a change to the cygcheck tool, see,
  options --enable-unique-object-names, --disable-unique-object-names,
  and --show-unique-object-names.

- For better debugging of multiple Cygwin installations, every Cygwin
  DLL now generates a registry entry with its installation path and the
  key value computed from this path.
  This change is accompanied by another change in cygcheck, see,
  and its new option --delete-orphaned-installation-keys.

I experimented a little with the new features and found a couple of glitches. My normal cygwin installation is in D:\cygwin-1.7. I updated it to 1.7.0-63 and then installed a second cygwin installation in C:\cygwin-1.7 just to see if I really could run two cygwin-1.7's at once. It seemed to work fine.

I then deleted the directory C:\cygwin-1.7 and ran 'cygcheck --delete-orphaned-installation-keys', followed by 'cygcheck -svr' to make sure my original cygwin (in D:\cygwin-1.7) was still OK. I'm attaching some excerpts from the cygcheck output. The most surprising thing (to me) is that cygcheck was still reporting the standard mounts

C:\cygwin-1.7      /          system  binary,auto
C:\cygwin-1.7\bin  /usr/bin   system  binary,auto
C:\cygwin-1.7\lib  /usr/lib   system  binary,auto

left over from the installation that was removed. This probably explains some of the other errors, like cygcheck not being able to find 'id' and 'cygrunsrv'.

I reinstalled cygwin 1.7.0-63 in D:\cygwin-1.7, and everything was back to normal. In retrospect, I probably should have tried rebooting first to see if that fixed it. Or maybe there was some other cleanup I should have done after deleting C:\cygwin-1.7.

Cygwin Configuration Diagnostics
Current System Time: Tue Nov 03 21:10:43 2009

Windows XP Professional Ver 5.1 Build 2600 Service Pack 3

Path:	D:\cygwin-1.7\usr\local\texlive\2009\bin\i386-cygwin
	C:\Program Files\ThinkPad\Utilities
	C:\Program Files\Intel\Wireless\Bin\
	C:\Program Files\IBM ThinkVantage\Client Security Solution
	C:\Program Files\ThinkPad\ConnectUtilities
	C:\Program Files\QuickTime\QTSystem\
	C:\Program Files\Common Files\Lenovo

[At this point cygcheck gave an error message on the terminal
something like "Can't find the 'id' utility."  I don't remember the
exact wording.]

SysDir: C:\WINDOWS\system32


HKEY_CURRENT_USER\Software\Cygnus Solutions\Cygwin
HKEY_CURRENT_USER\Software\Cygnus Solutions\Cygwin\mounts v2
HKEY_CURRENT_USER\Software\Cygnus Solutions\Cygwin\Program Options
HKEY_CURRENT_USER\Software\Cygwin\Program Options
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\MenuOrder\Start Menu2\Programs\Cygwin
  (default) = (unsupported type)
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\MenuOrder\Start Menu2\Programs\Cygwin-X
  (default) = (unsupported type)
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\MenuOrder\Start Menu2\Programs\Cygwin-X\Information
  (default) = (unsupported type)
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\mounts v2
  (default) = '/cygdrive'
  cygdrive flags = 0x00000022
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\mounts v2\/
  (default) = 'D:\cygwin'
  flags = 0x0000000a
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\mounts v2\/c
  (default) = 'c:'
  flags = 0x0000000a
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\mounts v2\/d
  (default) = 'd:'
  flags = 0x0000000a
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\mounts v2\/Users
  (default) = 'C:\Documents and Settings'
  flags = 0x0000000a
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\mounts v2\/usr/bin
  (default) = 'D:\cygwin/bin'
  flags = 0x0000000a
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\mounts v2\/usr/lib
  (default) = 'D:\cygwin/lib'
  flags = 0x0000000a
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\Program Options
  (default) = '\??\D:\cygwin-1.7'
  (default) = 'C:\cygwin-1.7'

obcaseinsensitive set to 1

Cygwin installations found in the registry:
  System: Key: 34ecc2f3970cc4c9 Path: D:\cygwin-1.7

c:  hd  NTFS     24999Mb  73% CP CS UN PA FC     IBM_PRELOAD
d:  hd  NTFS     27282Mb  76% CP CS UN PA FC     
e:  cd             N/A    N/A                    

C:\cygwin-1.7      /          system  binary,auto
C:\cygwin-1.7\bin  /usr/bin   system  binary,auto
C:\cygwin-1.7\lib  /usr/lib   system  binary,auto
cygdrive prefix    /cygdrive  user    binary,auto

Found: D:\cygwin-1.7\bin\awk.exe

    Cygwin DLL version info:
        DLL version: 1.7.0
        DLL epoch: 19
        DLL old termios: 5
        DLL malloc env: 28
        Cygwin conv: 181
        API major: 0
        API minor: 217
        Shared data: 5
        DLL identifier: cygwin1
        Mount registry: 3
        Cygwin registry name: Cygwin
        Program options name: Program Options
        Installations name: Installations
        Cygdrive default prefix: 
        Build date: Tue Nov 3 15:06:09 CET 2009
        Shared id: cygwin1S5


Can't find the cygrunsrv utility, skipping services check.

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