Good news. I took my HFS Zip to my 10.3.9 Mac and created a disk image from it. Then I formatted a blank Zip as HFS.
Going back to my Snow Leopard Mac, I then used the newly created ZIP disk image and the same commands to write to the newly formatted ZIP disk. It worked. I ended up with an HFS Zip 100 copy of the disk image. THen I tried to reverse the commands and copy the HFS Zip 100 to an HFS disk image. That worked too! Here's the transcription of what happened: Image to Zip $ dd if=/Zip.dmg of=/dev/disk2s1 dd: /dev/disk2s1: Input/output error 75745+0 records in 75744+0 records out 38780928 bytes transferred in 536.671536 secs (72262 bytes/sec) Zip to Image $ dd if=/dev/disk2s1 of=/Zip.dmg dd: /dev/disk2s1: Input/output error 26200+0 records in 26200+0 records out 13414400 bytes transferred in 68.376718 secs (196184 bytes/sec) $ As you can see, there were some errors, but both the disk and image work perfectly. I will need to do some further testing, but this seems to work perfectly. More to come. Thanks! ------------ On Sep 15, 9:16 pm, Wolf <[email protected]> wrote: > gotta add some arguments onto the dd command i think > > been too long since i have last tried something like this, i'll have to look > into it on my Linux box > > On Wed, Sep 16, 2009 at 12:12 AM, Mac128DOTcom > <[email protected]>wrote: > > > > > > > So here's what I get under Snow Leopard with a USB Zip drive. > > > When I type mount in Terminal, I get /dev/disk2s4 on /Volumes/ZIP-100 > > (msdos, local, nodev, nosuid, noowners) > > > When I type $ dd if=/disk2.dmg of=/dev/disk2s4 while the ZIP is > > mounted, I get the response dd: /dev/disk2s4: Resource busy > > > When I unmount the Zip 100 disk in OS X Disk Utility and type $ dd if=/ > > disk2.dmg of=/dev/disk2s4, the cursor move down a line and after about > > 15 minutes, I get this: > > > dd: /dev/disk2s1: Input/output error > > 73705+0 records in > > 73704+0 records out > > 37736448 bytes transferred in 434.384987 secs (86873 bytes/sec) > > > Ultimately, I cannot mount the resulting disk and Disk Utility won't > > repair it. Any idea what's going on here? > > > On Sep 15, 4:08 pm, Wolf <[email protected]> wrote: > > > i wrote that with a PC-style USB floppy drive in mind > > > > this is the area i am fuzzy on... you should be able to dismount a Zip > > disk > > > with out ejecting it, i think via Disk Utility, if not then you can do it > > > via Terminal > > > > i think USB Zip drives come up as IDE-type devices but i again do not > > know > > > how this works on the Mac. > > > > if i were to try this (i can't, sadly) i would insert the Zip disk, let > > it > > > mount and show in the Finder, and then open a Terminal and do "mount". > > that > > > should tell you what device name the Zip drive is assigned and what > > > directory it's contents are mounted to... along with every other > > > drive/volume on the Desktop > > > > just some thoughts, maybe you or somebody else can see if this actually > > > works > > > > On Tue, Sep 15, 2009 at 6:55 PM, Mac128DOTcom <[email protected] > > >wrote: > > > > > So using OS X Terminal, just type in: $ dd if=diskimage.img > > > > of=deviceID and Terminal will automatically copy from the image to the > > > > disk? I think the device ID can be found in System Profiler. > > > > > I'm not sure about unmounting a removable media drive as that would > > > > eject the media. Are you saying to unmount the drive then execute the > > > > command in Terminal, then insert the disk? > > > > > This is not familiar territory to a lot of people and a few step by > > > > step instructions would help. It seems simple enough and would of > > > > course solve a lot of problems. I do not have a floppy drive, but I do > > > > have a ZIP drive that functions under Snow Leopard. So I am happy to > > > > test it and report back – assuming I understand this procedure > > > > correctly. > > > > > On Sep 14, 11:01 am, Wolf <[email protected]> wrote: > > > > > in a Terminal, "dd if=diskimage.img of=floppydevice" > > > > > diskimage.img is the uncompressed image file, floppydevice is the > > actual > > > > > device that appears in /dev - i don't remember what it comes up as on > > a > > > > > Macintosh. > > > > > please note that i am not a daily Mac user - but technically > > speaking, i > > > > > don't see why this shouldn't work on Snow Leopard --~--~---------~--~----~------------~-------~--~----~ You received this message because you are a member of the Vintage Macs group. The list FAQ is at http://lowendmac.com/lists/vintagemacs.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/vintage-macs Support for older Macs: http://lowendmac.com/services/ -~----------~----~----~----~------~----~------~--~---
