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Warning: Cannot modify header information - headers already sent by (output started at /var/www/html/wiki/includes/session/Session.php:48) in /var/www/html/wiki/includes/changes/ChannelFeed.php on line 89
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Deprecated: strlen(): Passing null to parameter #1 ($string) of type string is deprecated in /var/www/html/wiki/includes/libs/rdbms/database/Database.php on line 561 https://wiki.afp548.com/index.php?action=history&feed=atom&title=Mount_DMG_Read_WriteMount DMG Read Write - Revision history2026-10-23T22:10:41ZRevision history for this page on the wikiMediaWiki 1.34.0 Deprecated: strlen(): Passing null to parameter #1 ($string) of type string is deprecated in /var/www/html/wiki/includes/libs/rdbms/database/Database.php on line 561
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Deprecated: strlen(): Passing null to parameter #1 ($string) of type string is deprecated in /var/www/html/wiki/includes/libs/rdbms/database/Database.php on line 561 https://wiki.afp548.com/index.php?title=Mount_DMG_Read_Write&diff=826&oldid=prevNatewalck at 12:14, 1 April 20122012-04-01T12:14:11Z<p></p>
<p><b>New page</b></p><div>Borrowed from [http://www.macenterprise.org/articles/creativewaysofusingshadowfiles MacEnterprise]<br><br />
<br />
One of the interesting things that can be done with hdiutil is attaching a read-only image using a shadow file. Here's how:<br />
<br />
First, attach the read-only image as with the shadow option:<br />
<syntaxhighlight lang="bash"><br />
hdiutil attach -owners on your.dmg -shadow<br />
</syntaxhighlight> <br />
<br> After typing this command, the image will be attached as a new device to your operating system. Usually this is shown from the command line.<br><br />
<br />
Next, copy over any items, or modify anything on the read-only image. Detach the image when finished by right clicking and ejecting it.<br />
<br />
<br><br />
<br />
Now, convert the image back to read-only<br />
<syntaxhighlight lang="bash"><br />
hdiutil convert -format UDZO -o new.dmg your.dmg -shadow<br />
</syntaxhighlight> <br />
<br />
You now have a brand new dmg, and the time and space required to convert the image to read-write has been eliminated. <br><br />
<br />
<br />
[[Category:InstaDMG]][[Category:Settings]]</div>Natewalck