Mac OS 9 Discussion > Software

a quick note about extracting .zip files & "Corrupted files"

(1/3) > >>

supernova777:
just a reminder
if you try to unarchive/unstuff a .zip file..
and the files inside appear to all be damaged.. missing icons etc..
**this file must be unzipped on MAC OS X**
the files are ok..
its just that mac os 9 unzip program cannot properly unzip them...
the resource forks are intact if they are extracted properly
this is due to an incompatibilty + shortcoming of STUFFIT
to understand technology that came after it...

an example of this type of situation for those who remember was when enabler uploaded a bunch of files
another example is when a user needed the midex 8 driver for a steinberg usb driver
these files when extracted on os9 appear to be corrupt but they are not corrupt at all
it is an error of stuffit not extracting properly

an easy way to notice this is if u see a folder thats called "__MACOSX"
this is loud + clear indication that this file *SHOULD NOT BE EXTRACTED ON OS9*
even if it contains os9 files.. the files are ok if u extract on mac os x!
this file wasnt created on os 9. it was created on osx.. and will only extract properly on os x.

delete the file that you created by extracting it on 9.. upload it somewhere else..
reboot to mac os x or access it from another mac os x machine on your network and
extract it there..

once you do so, u will see the files extract properly and show proper icon graphics etc

a good way of getting it safely to mac os 9 after that would be to
create a stuffit file using stuffit on mac os x (making sure u check the preferences
and enable the option for creating downward compatible archives)

another good way is to use dropdmg for leopard, dropDMG for tiger or dropdmg for panther to create "uncompressed" UDIF .dmg or NDIF .img which will open fine with disk copy 6.4+


another good way is to use toast to create a custom sizse toast image
but stuffit is probably the easiest.. i need to explore more fully the stuffit deluxe for mac osx to see if its possible to do
.bin encode

if anyone knows how to make macbinary .bin encode on mac os x
WITHOUT compression.. this would be great way to bring files from mac os x to mac os 9 too
maybe this is possible by editing stuffit preferences.. set to no compression

supernova777:
another observation:
if u double click the zip in mac os x (i used 10.4.11)
it my default to "unarchiver" utility, which, seems to work 100%
but on closer observation, it changes all the created/modificed dates of the files
to be the current day..

if you use stuffit expander on mac os x
the files are properly extracted.. with their original created/modified properties still
intact!

supernova777:
if u need disk copy 6.4 its available in a .sit file here: http://macgui.com/downloads/?file_id=24166

supernova777:
ive just tested dropDmg for Tiger on my G5



the following "preferences" settings allow the creation of mac os 9 compatible .img.bin files fast!!! with just 1 action (drag folder/files to the dropDmg icon)

Format: ".img NDIF Read-only"
Options: Encoding: "MacBinary"

there are other options aswell, which can be ignored. those are the only two settings to worry about.
you can "save as a configuration" if you wish but i dont think its neccessary. you can just close the preferences window + the settings
will be active or whatever.

i've tested opening the resulting file created by dropDMG on both os9 + osx
for some reason on osx the file didnt mount + come up automatically and i had to open up disk utility
+ eject and remount.. but ti does work.. and the file are accessible by mac os x without any
additional software using native disk utility app... and it worked effortlessly in mac os 9.

Why am i posting this info?
sick of issues between .sit + .sitx..  (my dropStuff app on Tiger doesnt let me create a normal .sit file dont ask me why)
and multiple copies of files..

i wanted to have 1 file that will work natively on both my x + 9 systems.

DieHard:
Just as an FYI, the Mac OS 9 .img files created on Mountain Lion (10.8.5) for OS9 do work under Mac OS 9, BUT will not open even with "Disk Utility" on ML... so this kind sucks that they need to be converted via Disk Ulility from img to DMG then they open :(

Navigation

[0] Message Index

[#] Next page