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System 7 Questions

dcr

Well-known member
Does anyone remember the filename of the 7.5.5 installer or upgrader? I have install disk floppies for System 7.5.3 but, in Basilisk, I have a virtual hard drive that has System 7.5.5 on it. So, I must have the installer or upgrader somewhere, but I cannot find it and variations of "7.5.5" or even "755" in a search have failed to turn it up.

On the other hand, did 7.5.5 bring much improvement to 68k Macs? I think it was mostly optimizing for PowerPC, so maybe there's not a huge benefit to 68k systems?
 

shadedream

Well-known member
I think the update was 3 or 4 floppy images. Should be on the garden. From Wikipedia:

System 7.5.5 included significant performance improvements for virtual memory and memory management on PowerPC-based Macs, including the elimination of one type 11 error. Also included were a number of reliability improvements, such as fixes for Macs using floppy disks equipped with a DOS compatibility card, improved hard disk access for PowerPC PowerBooks and Performa 5400 through 9500 computers, fixes for Macs that included an Apple TV Tuner or Macintosh TV Remote Control, improvements to LocalTalk and networking (especially for the Performa 5400 and 6400), fixes to system startup for the faster 180 MHz Macs (which included PowerPC 604 or 604e processors), improved reliability when using sound-intensive applications on Quadra or Centris computers that contained the PowerPC upgrade card, and improved stability when using multiple background applications and shared printers on a network. System 7.5.5 is also the last System 7 release that can run on 68000-based Macs such as the Macintosh Plus and Macs with ROMs that lack support for 32-bit addressing such as Macintosh IIcx. 7.6 and later required a 68030 processor and 32-bit-addressing-capable ROM and will automatically turn on 32-bit addressing on boot.
 

dcr

Well-known member
I have the images if you need.
Thanks. I'll let you know. I must have them though because one or two drives in my Basilisk setup have System 7.5.5 installed and I believe those were clean installs (either straight 7.5.5 install or 7.5.3 install then upgraded to 7.5.5) as I don't have any disk images from actual hard drives with 7.5.5 installed. And those drives in Basilisk were created within the last few years, which means the installers should be on my external storage drive but I have yet to find them.

Maybe I'll have to check my archive drive just in case. They shouldn't be there but worth a shot.
 
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