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For the last 2+ years I've been unable to upgrade Cygwin on my Win2K system without reinstalling from scratch. This has periodically been mentioned by other users. I may have found at least one case for a failure. Apparently Install.cc:do_install_thread passes a zero length string to install.cc:md5_one. The failure is repeatable. The sequence of events is: 1. Download but do not install update files. 2. Download Setup.exe version 2.510.2.2. 3. In the setup.exe (Cygwin Net Release Setup Program) a. Select 'Install from Local Directory' - Select 'All Users' - In my case: Root directory > C:\Cygwin Local Package Directory > D:\root\cygwin b. Select 'View > Partial' after parsing. c. Deselect all Binary and Source update selections except 'gawk' Binary. - The following dependencies are automatically chosen by the setup program(?): bash libiconv2 libintl3 d. Click 'Next' 4. The following failure message is output: Fatal Error: Uncaught Exception Thread: install Type: St16invalid_argument Message: URL Scheme for '' not registered! 5. The URL scheme is the empty string, "''". 6. I then built 'Setup.exe version 2.524' with the same results. 7. The debug output from version 5.524 is included in dbg.out. My observation is that: a. Install.cc:do_install_thread is entered once for 'gawk' b. The following loop is executed three times: for (vector <packagemeta *>::iterator i = db.packages.begin (); i != db.packages.end (); ++i) /* indentation mine. sorry*/ c. On the third iteration, the string passed to md5_one is an empty string(''). I'm not sure about this. The failure is in: io_stream *thefile = io_stream::open (fullname, "rb"); and seems to be because 'fullname' is an empty string. In the past it appeared that prior to failure, some files were deleted from /bin, /usr/bin and perhaps other locations. This may have been changed in the current release(s) because files are not removed until after all checks are made - one issue disappears. I will try to track down the exact failure and report on it, but it's a long hike to learn the code well enough to identify (and fix) the error. Hope this helps. art Attachments: cygcheck output dbg.out debug output setup.ini setup file being used
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cygcheck.out
Description: 3924260979-cygcheck.out
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dbg.out
Description: 1013112982-dbg.out
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setup.ini
Description: 2445000593-setup.ini
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