Mac Classic II boot issues

[AbelVincze]

Hi, i'm using a Mac Classic II for development, and i'm facing a strange issue, maybe someone knows what is happening.

The issue is, whenever my Mac is freezing, and i have to turn it off then on, it will not boot again, with a questionmark on the disk icon.

If i boot from a floppy, it says the HD is unreadable, and want to initialize it.

Then i remove the HD form the Mac Classic II, and put it on a Mac LC as external SCSI case, and the LC can boot from it, without any issues, and then i put back in the Mac Classic II, and again, works as expected, it boots without any issues, until the next Power off (not shutdown, when i shut it down, it can boot from that HD).

Can anyone recognize this issue? Why Mac Classic II says that the HD is unreadable, until i put it as external HD on a different Mac. Why switching off a frozen Mac Classic II causes a such issue?

Is there any way i could fix it without removing the HD?

 

[IlikeTech]

Some kind of file system courrption that is caused by killing power?

 

[AbelVincze]

It could be, but after booting from the same HD on a different Mac in an external SCSI, and then putting back the HD in the Mac Classic II, everithing is fine.

 

[AbelVincze]

Ok, finally, i made a copy of the system on the second partition, and now if i have to restart, the Mac can boot from that second partition, and as the os is loaded, i just have to restart again to boot the original system. I still don't understand why do i have to do that, but at least i do not have to remove the HD to fix it on a different Mac.

 

[BadGoldEagle]

Every time I disconnect the hard disk from my SE/30, it will lock itself: A windows pops up and tells me that this disk is locked, and it won't fully boot (nothing on the desktop except the menu bar)

I need to reboot the Mac at least 5 times before it unlocks itself.

Don't ask me why it does that.

 

[Johnnya101]

Sounds like a bad or failing HD!!

 

[Elfen]

Could be one of many things.

Q: Did this Classic II get a recap? If not, time to look into getting that done.

Could be an Iffy hard drive or some cap goo messing with the SCSI Chip.

Q2: Did you replace the battery? That can do it too. Or run without it.