To complement this post by Taco Bill, and for the archives, I'm copying the post and including a link to Apple's Knowledge Base article "Macintosh: Connecting SCSI Devices":
http://kbase.info.apple.com/cgi-bin/WebObjects/kbase.woa/wa/query?searchMode=Assisted&type=id&val=KC.9387 http://docs.info.apple.com/article.html?artnum=9387&SaveKCWindowURL=http%3A%2F%2Fkbase.info.apple.com%2Fcgi-bin%2FWebObjects%2Fkbase.woa%2Fwa%2FSaveKCToHomePage&searchMode=Assisted&kbhost=kbase.info.apple.com&showButton=false&randomValue=100&showSurvey=false&sessionID=anonymous|161859070 --- Bill Brown <[EMAIL PROTECTED]> wrote: > Yo compacters everywhere, > > On Flicker's thread here, our Flicker Flacker > <[EMAIL PROTECTED]> sez: > > >My trouble will be how do I completely > >remove from the EZ135 cartridge(s) that will be for Mac Plus the > >existing drivers that are not working. > > Well, lemme see. What I do is: with the disk I want to put the new > driver > on, I put the disk into the SyQuest drive, spin it up 'til the light > on the > drive goes green, and hope it mounts. If it does, I launch the > formatter > utility poking those buttons that gets the formatting underway along > with > all of those warnings about what I am doing is going to destroy every > little thing on the disk. If the disk is sound, all of this > formatting > happens, the disk remounts, and a check with Get Info confirms a new > driver. > > Sometimes, the disk won't mount for any of several reasons they > choose not > to mount. So I launch SCSI Probe clicking on the mount button. > Usually it > does. Some people here use other mounting tools many having success > with > something called Lido 7.5.6 which can be found from the FAQ. > > I read that you are starting up your Plus with the disk already in > your > SyQuest and I assume up to speed with a green light showing. It is at > this > point that I understand you start your Plus and it goes Sad Mac on > you. > Hmmm... Yup. Have seen this on SEs and other Macs with a SyQuest too. > I > even have a disk I use to dependably demonstarate this to others. > > As a starting point, I assume your Plus is indeed a good working Plus > as is > your boot floppy or whatever you boot from is in known good shape. > Further, > I assume you have no SCSI address conflict and your SCSI chain is > properly > terminated. We want to be sure that we are looking only at a SyQuest > drive, > disk, or driver problem. In short, does this Mac work okay without > the > SyQuest? And, again, does the SyQuest drive and disk work on another > Mac ok? > > I assume your Plus is booting and working from a "regular" boot > floppy > disk. At 27k, you might want to put SCSI Probe on your boot floppy > and try > it this way: Have your SyQuest connected and turned on but with no > disk > installed. Boot from your boot floppy or other known good startup > drive of > choice. If you get this far, it is likely your SyQuest disk and not > your > drive that is the problem. Open the control panel selecting SCSI > Probe. It > should see the drive even with no disk installed. Click on Mount just > for > the hell of it. This would leave me happy that, again, your disk is > the > problem. Now insert the disk and spin it up. I would expect a freeze > about > here. If so, repeat all of this trying another known to be good > SyQuest > disk. If it does not freeze, launch SCSI Probe and see if it finds > your > disk this time. Crash city at this point suggests your disk is bad > and > gonna stay bad. Your hope at this point is to try Lido or another > mounter > utility in the forlorn hope that a different wrench will turn this > difficult nut. If you find SCSI Probe or another mounter mounts your > disk, > FORMAT IT NOW! Your ancient Silverling, Silverlining lite, FWB, and > likely > other formatters will do it. An older Silverlining or Silverlining > lite > will certainly do it-these were the formatting utilities on every > SyQuest > 135 disk ever made. FWB drivers work also. I will not argue > formatters or > drivers. On my SyQuest 135 disks, I use FWB because it works well for > me. > If any aspect of your SyQuest is working at this point, the rest > should > become obvious. If still you have nothing but a Sad Mac or crash > city, > start looking more generic than your SyQuest. > > Does any external SCSI device work with your Plus? Try an external > hard > drive, a CD-ROM, anything SCSI that will work with a Plus and for > which you > have set up your startup disk to support. If these work, we are back > to > your SyQuest. On another Mac, confirm that your SyQuest components; > drive, > disk, SCSI cable, and terminator actually work. > > If this SyQuest drive and disk are working on another Mac, reformat > the > disk with your formatter of choice on this other Mac. Then haul the > drive > and disk back to the Plus and try again. > > A few little things: When formatting a problem disk, I've had success > by > first performing a "quick format" or whatever your formatter may call > it > followed by reformatting a second time with a "low level format" or > whatever your formatter calls its deep kidney surgery version of > formatting. Two steps have gotten me where one step could not. > > Second; Try rebuilding the desktop of the recalcitrant disk. Use > TechTool, > or Apple's Command + Option keys at startup if that is all you have. > Yes, > this can help. Obviously, this isn't gonna get you passed no Sad Mac. > But > if you try it with a disk inserted after starting up... > > Third; with this SyQuest drive and disk SCSI'd up to an 030 or better > Mac, > try running Diskwarrior on it. Amazing what that tool fixes. > > Fourth; I've oft been told that the Plus had a very "loose" > implementation > of the SCSI protocol. Whatever is meant by loose, I've been told not > to > expect everything SCSI to work with a Plus. > > Fifth; Now and again I am told that SyQuest 135 disks have a higher > than > average failure rate-the disks, not the drive. This hasn't been my > experience yet. I like these SyQuest 135s better than Zip 100s. To > each > their own. > > A difficulty many of us face here is that we don't have all of this > stuff > close at hand. This is a good reason to belong to a Mac User's Group > where > you are best likely able to beg, borrow, or steal, er, buy this > stuff. MUG > people with their latest and greatest G-Whiz Macs are always happy to > part > their ancient Mac stuff to someone who will use it. http://kbase.info.apple.com/cgi-bin/WebObjects/kbase.woa/wa/query?searchMode=Assisted&type=id&val=KC.9387 __________________________________________________ Do you Yahoo!? Yahoo! Mail Plus - Powerful. Affordable. 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