Archived from groups: microsoft.public.win95.general.discussion (
More info?)
It could be a hardware failure, possibly caused by dislodging a drive cable,
or replacing it incorrectly, when you replaced the battery. Double-check
the connections to the drive.
But if the system sees the drive but DOS can't, then it looks a lot like the
system has recognised the hard drive with the wrong configuration. When the
BIOS auto-detects, can you confirm that the configuration it detects
(cylinders, tracks, sectors) is the same as it was detecting before you made
the change? Does it agree with the label on the disk?
You can change the configuration between large and LBA and see if ether of
these settings allows the system to recognise the partitioning.
--
Jeff Richards
MS MVP (Windows - Shell/User)
"Goaliewizard" <Goaliewizard@discussions.microsoft.com> wrote in message
news:1EA0F4E6-5E0F-4050-997A-7F8F98F0E06F@microsoft.com...
> Thanks to both of you. Once I replaced the battery I reset date and time,
> rebooted and that's when I got the Invalid System Disk error. I checked
> the
> CMOS and the drives were set to Auto Detect. As I watch the screen during
> initial startup, the messages I see indicate that the proper hard drive
> and
> CD ROM are being identified, but when the computer goes to start Win95 I
> get
> the Invalid System Disk error.
>
> I have booted with a bootable disk that loads CD drivers, and I can access
> the Win95 cd, but from the A: prompt I can only get to the CD and back ...
> no
> C: drive. Running Setup fails since the system can't find a place to creat
> temporary files.
>
> It sounds like a hardware problem...if I run fdisk and select option 4 to
> display current partition info, it shows as a non-DOS partition of correct
> size.
>
> Problem - I'd like to recover data on hard drive before I fdisk, reformat
> and reinstall Win95. Backups are not recent enough (sufficiently
> self-flagellated over that one). Is there an option or am I SOL?
>
> Thanks
>
> "Jeff Richards" wrote:
>
>> Access BIOS setup and identify the hard disk drive. Make sure the system
>> identifies it as the same configuration and uses the same mode (eg, LBA)
>> as
>> before the BIOS upgrade.
>> --
>> Jeff Richards
>> MS MVP (Windows - Shell/User)
>> "GoalieWizard" <GoalieWizard@discussions.microsoft.com> wrote in message
>> news:F3836112-D0DF-4FFE-B993-5E39240A5750@microsoft.com...
>> > Replaced battery on motherboard, updated CMOS and tried to reboot. PC
>> > comes
>> > back w/ 'Invalid System Disk' message. Tried booting from Win95 CD, but
>> > get
>> > CD drive failure message.
>> >
>> > From reading other posts is it true that Win95 CD has no CD drivers? If
>> > so,
>> > is only option getting bootable 3.5 floppy?
>> >
>> > Related question, any ideas on why PC lost track of hard drive?
>> >
>> > Thanks from a relative novice.
>>
>>
>>