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Punkyclown's picture
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Joined: 2017 Nov 9
New 1400c

Hi All, Got a Powerbook 1400c running 7.5.3. I have a pcmcia card reader and formatted
a 4 gig SD card. But when I put in my Newer MacBook the machine recognizes
the disk but I am unable to copy anything to it. It there a fix to this?
Thanks,
Brad Hansen

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WhosIt.There's picture
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Joined: 2014 Aug 23

Is the card write protected?? If it is you'll need to unlock it.

Otherwise the card is probably in the Windows format (NTFS??) that new Macs can read but not write to. Disk Utility will tell you what the formatting is. If it is this format, then you'll either need to reformat the card as a proper Mac-compatible version or get an OS add-on that can write to that format.

Punkyclown's picture
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Joined: 2017 Nov 9

Whosit, thanks for the advice. Get Info says the card is formatted as Mac Standard. I believe
that is HFS. Don't think it's write protected, how do I find out?
Thanks,
Brad Hansen

Troyd's picture
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Joined: 2014 Nov 14

Catch 22 with this. Intel Macs write only to Mac Extended (HFS+). MacOS 7 only reads Mac Standard. You will need a later PowerBook/PowerMac to write to the CF. Either that or upgrade to MacOS 8.1 or later, which supports HFS+.

WhosIt.There's picture
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Joined: 2014 Aug 23

It might be possible to use the card in standard Windows format, but you may first need an add-on for the System 7 computer to be able to read that ... but don't ever put any Mac apps on a Windows format disc / card that aren't in some sort of Mac compatible archive format (.sit, .cpt, .zip).

24bit's picture
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Joined: 2010 Nov 19

Writing HFS from user land is impossible with OSX 10.6 or higher.
Leopard Server in a virtual machine is one solution.
I already posted that in one of your other threads Punky - shall I tell the link again?

Another solution is a DiskCopy 6 image and a Mac emulator like SheepShaver or Basilisk II.
Create a disk image (img) on your iMac from within SheepShaver of say 2GB size.
Move the needed files onto the .img via the shared Unix folder.
Format your SD card as FAT-32
Copy the .img to your 4GB SD.
Mount the SD at the PB - MacOS7.5 should be aware of FAT-32 devices by design.
Copy the .img to your PBs HDD.
Run DiskCopy and select open image from the file menu.

The img won´t open on the PB by double click, as the needed resource fork is lost on non Mac file systems.

If you wish, I´ll create a bootable disk image for SheepShaver running Mac OS 8 or 9.

IIGS_User's picture
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Joined: 2009 Apr 8

And is there a limit in disk (partition) size? Probably 2gig up to Mac OS 7, then up to 4gig in Mac OS 8+?

24bit's picture
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Joined: 2010 Nov 19

IIRC, the HFS volume size was limited to 2TB with a max file size of 2GB.
Nobody had either of them when HFS was state of the art methinks. Wink
Maybe a good idea to start with some smaller .img to see how things work.

IIGS_User's picture
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Joined: 2009 Apr 8

Nobody had either of them when HFS was state of the art methinks. Wink

Smile