VAXStation II/MFM emulator

On Thu, Feb 06, 2014 at 10:04:33AM -0800, Glen Slick wrote: Thanks for letting me know the images were good. Had to fix the following to get the floppies working 1) Bearings dry in the RX50. Works better if parts move. 2) Empty slot on the qbus. The video card I pulled was in the last slot. Apparently another card was pulled before I got the machine. Used to Omnibus where thats not a problem. After I was able to verify the floppies were working I found that putr with these commands made disks that would work format a:/rx50/rt11 mount a: copy /file/dev uvax_1.img a: I was then able to boot the diags. With a couple fixes to the emulator the diags read/write test and format work. The diags have the lamest disk test. Its only able to read 500 kbytes in a minute for a sequential read test. I put the real drive in to verify that it wasn't an emulator problem. I was also able to boot the VMS I read off of the RD53. Its running MicroVMS Version V4.6 and has 12M of memory. I didn't get any disk errors and was able to copy a directory tree. I didn't figure out how to do an equivalent of diff -r to check the tree copy. Any simple tests under VMS to verify that writing is working fine? With the other tests and validating that the image file is still valid after the testing I think its working pretty good now. It had a few errors on the first disk check that went away with repair. These two just keep alternating though. Anyone know what this indicates? $ analyze /disk/repair dua0: %VERIFY-I-BACKLINK, incorrect directory back link [SYS0]SYSMAINT.DIR;1 $ analyze /disk/repair dua0: %VERIFY-I-BACKLINK, incorrect directory back link [000000]SYSMAINT.DIR;1 No new errors have shown up. I will put the update code online tonight. I also think the TK50 has a slightly too stiff bearing on one of the capstans and the tape has the sticking problem. Looks like I'm going to have to look into tape baking when I get to reading the tapes I have.