Following steps to update a .dmg file (mounting and Show Contents), I'm unable to write to the folders in the DMG file.
Doing a "Get Info" displays a locked padlock and all else greyed out in the Sharing & Permissions section. Clicking on the padlock and entering my password does unlock the padlock but the Sharing & Permissions is still greyed out. It does show I have Read & Write and "You have custom access" (greyed out) but am not able to copy files into the contents of the DMG.
Any hints? Thanks.