malkus Posted December 29, 2020 Share Posted December 29, 2020 (edited) Registered over a year ago but this my first post! So, still here in the "lounge".. Since the 14th of december there is a full Big Sur download option via gibMacOS but still no recovery version though. I downloaded it anyway and now I wonder if I can use that content somehow to create a bootable USB. I already have a formatted stick with a boot partition with OC and the EFI-folder as well as large 2nd HFS+ - partition sitting there, waiting... Any ideas? The content of the folder from gibMacOS (001-86606 - 11.1 macOS Big Sur) is (with relevant (?) sub-content listed): BuildManifest.plist Info.plist InstallAssistant.pkg Bom PackageInfo Payload Scripts SharedSupport.dmg (12.2 GB) 0.MBR 1.Primary GPT Header 2.Primary GPT Table 3.free 4.C12A7328-F81F-11D2-BA4B-00A0C93EC93B 5.hfs (11.7 GB) Shared Support com_apple_MobileAsset_MacSoftwareUpdate SFR InstallInfo.plist UpdateBrain.zip 6.free 7.Backup GPT Table 8.Backup GPT Header InstallInfo.plist MajorOSInfo.pkg UpdateBrain.zip Edited December 29, 2020 by malkus changed date from 12 to 14 Quote Link to comment Share on other sites More sharing options...
Shaneee Posted December 29, 2020 Share Posted December 29, 2020 Take a look at the macrecovery method here, https://dortania.github.io/OpenCore-Install-Guide/installer-guide/winblows-install.html Quote Link to comment Share on other sites More sharing options...
malkus Posted January 4, 2021 Author Share Posted January 4, 2021 On 12/29/2020 at 4:23 PM, Shaneee said: Take a look at the macrecovery method here, https://dortania.github.io/OpenCore-Install-Guide/installer-guide/winblows-install.html Thanks for the tip but I actually did that first! That still requires an internet connection for completing the install by downloading the rest of the rquiered data. I was hoping to put together a full, working offline installer. Quote Link to comment Share on other sites More sharing options...
nikhilraj9999 Posted May 27, 2021 Share Posted May 27, 2021 On 12/29/2020 at 8:34 PM, malkus said: Registered over a year ago but this my first post! So, still here in the "lounge".. Since the 14th of december there is a full Big Sur download option via gibMacOS but still no recovery version though. I downloaded it anyway and now I wonder if I can use that content somehow to create a bootable USB. I already have a formatted stick with a boot partition with OC and the EFI-folder as well as large 2nd HFS+ - partition sitting there, waiting... Any ideas? The content of the folder from gibMacOS (001-86606 - 11.1 macOS Big Sur) is (with relevant (?) sub-content listed): BuildManifest.plist Info.plist InstallAssistant.pkg Bom PackageInfo Payload Scripts SharedSupport.dmg (12.2 GB) 0.MBR 1.Primary GPT Header 2.Primary GPT Table 3.free 4.C12A7328-F81F-11D2-BA4B-00A0C93EC93B 5.hfs (11.7 GB) Shared Support com_apple_MobileAsset_MacSoftwareUpdate SFR InstallInfo.plist UpdateBrain.zip 6.free 7.Backup GPT Table 8.Backup GPT Header InstallInfo.plist MajorOSInfo.pkg UpdateBrain.zip U can make a full installer using that in windows. Quote Link to comment Share on other sites More sharing options...
HenryV Posted May 31, 2021 Share Posted May 31, 2021 On 12/29/2020 at 12:04 PM, malkus said: Registered over a year ago but this my first post! So, still here in the "lounge".. Since the 14th of december there is a full Big Sur download option via gibMacOS but still no recovery version though. I downloaded it anyway and now I wonder if I can use that content somehow to create a bootable USB. I already have a formatted stick with a boot partition with OC and the EFI-folder as well as large 2nd HFS+ - partition sitting there, waiting... Any ideas? The content of the folder from gibMacOS (001-86606 - 11.1 macOS Big Sur) is (with relevant (?) sub-content listed): BuildManifest.plist Info.plist InstallAssistant.pkg Bom PackageInfo Payload Scripts SharedSupport.dmg (12.2 GB) 0.MBR 1.Primary GPT Header 2.Primary GPT Table 3.free 4.C12A7328-F81F-11D2-BA4B-00A0C93EC93B 5.hfs (11.7 GB) Shared Support com_apple_MobileAsset_MacSoftwareUpdate SFR InstallInfo.plist UpdateBrain.zip 6.free 7.Backup GPT Table 8.Backup GPT Header InstallInfo.plist MajorOSInfo.pkg UpdateBrain.zip See HenryV post at URL: https://www.insanelymac.com/forum/topic/347883-opencore-trouble-making-the-installer-on-linux/ If you only have windows try this: You could also try this with windows and post if it works for you. https://www.poweriso.com/tutorials/convert-dmg-to-iso.htm See the rest of the post for linux process. Quote Link to comment Share on other sites More sharing options...
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