eacj@batcomputer.tn.cornell.edu (Julian Vrieslander) (12/05/86)
Often when I am swapping floppies or shutting down, the Mac Plus (running System 3.2, Finder 5.3) will prompt me to insert a disk that was previously ejected, and that has no apparent reason for needing re-insertion. Maybe this is a minor annoyance, but sometimes it means re-booting (eg. if you just gave the disk to someone on his way to Tokyo). I just discovered that the disk insertion prompt can be made to disappear without inserting the disk, if you hit command-period. This is handy, but I wonder if there are situations where this is dangerous. My best guess is that the worst that can happen is that you might miss a FlushVol call to the disk that was requested, which is no big deal if the disk was on the way to the re-cycle box. Any other opinions on this? -- Julian Vrieslander (607) 255-3594 UUCP: {cmcl2,shasta,rochester,uw-beaver}!cornell!batcomputer!eacj ARPA: eacj@batcomputer.tn.cornell.edu BITNET: eacj%batcomputer@crnlcs.bitnet
lsr@apple.UUCP (Larry Rosenstein) (12/08/86)
In article <1716@batcomputer.tn.cornell.edu> eacj@batcomputer.UUCP (Julian Vrieslander) writes: >I just discovered that the disk insertion prompt can be made to disappear >without inserting the disk, if you hit command-period. This is handy, but >I wonder if there are situations where this is dangerous. My best guess is >that the worst that can happen is that you might miss a FlushVol call to the >disk that was requested, which is no big deal if the disk was on the way to >the re-cycle box. > If you Command-. a disk switch box, the I/O call that was running will return an error -53: volume off line. (You can also get a -53 error if you do an asynchronous I/O call to an off-line volume.) In most cases, this will result in an alert from the application. (Sometimes you will get a bizarre message, however.) If you cancel a FlushVol, then the disk will not be updated. If you do this when the application is trying to load a resource (some CODE, for example) then the application is likely to crash. I wouldn't get into the habit of using this feature, but if the disk doesn't exist anymore, then you have nothing to lose by trying it. -- Larry Rosenstein Object Specialist Apple Computer AppleLink: Rosenstein1 UUCP: {sun, voder, nsc, mtxinu, dual}!apple!lsr CSNET: lsr@Apple.CSNET