However many files you find, you can just:Ĭopy Install macOS Catalina.app to a read-write volume.Ĭopy the contents of /Volumes/TARGET/macOS Install Data to Install Versions add more and more files, some of which are hardware-specific (andĬatalina has InstallESDDmg.pkg, because Apple loves nesting archives for no For older versions, you will just have InstallESD.dmg, newer The install files can be found in /macOS Install Data on the destination Still find a way to get files out (after a failed install, they should not be The app asks you to reboot, quit it at this point. Open the installer and let it run until the download finishes. Whatever the issue was, we need to download the install files with the app from the App Store, and that app does the actual download. This also happens with some older macOS versions, where you get a small Install macOS Catalina.app does not appear to be a valid OS installer application. It at all the compressed files mentioned in this paragraph.) Making install media out of partial macOS installers (“not a valid OS installer application”) a. If you have 7z around (on Windows/Linux as well), you can just point cpio.gz again, with the same way to extract it. Will extract all the files the package has.Īnother nested archive is the Scripts archive, although note that Otherwise, you can use gunzip -c Payload | cpio -i (or gzcat). (default on macOS, easily installable on Linux), you can just do tar -xvf Payload. That contains the files installed by this package. The second archive-in-archive is the Payload. The structure produced by both tools is a bit different, but we can You can either extract it with pkgutil -expandįoo.pkg foo_files (the last argument is the destination directory, can beĪnything, will be created by pkgutil) if you have access to that command (it’sĪvailable in Recovery OS), or you can try the xar utility as xar -xfįoo.pkg. Those files are in XAR format, which was invented by the This was deduced from the file command and The Unarchiver. You can find more resources about the flat package format, one or two, although pkg format is just an archives all the way down, with allĪrchives being different formats (at least three). This package isĮxpected to install /Applications/Install OS X El Capitan.app. If you take a look at the instructions, you will see that this is Suggests the instructions in this post should work with Sierra as well. This post assumes you’re working with El Capitan a quick look though that file If you need something older than El Capitan, downloads are available as farīack as Lion, although these might not have the createinstallmedia tool There’s a Sierra download, with a broken link, although it can be fixed by changing updates-http to updates: get Sierra installer. There are also some other downloads available: The only thing you can easily download from Apple is El Capitan. Hackintoshing this little bit harder, but this also affects legitimate users. If it doesn’t, and Recovery can’t install it for you, that can be difficult toĪpple does not make macOS images publicly available. Program included with that installer app. The expected way to produce macOS install media is to download the installerįrom App Store/Software Update, and run the createinstallmedia command-line Unfortunately, making a USB stick with the macOS installer on it is a nuisance. The best, safest, least error-prone way to do an install is with a USB stick. Installer from Recovery/App Store (any macOS version)īonus tidbit 2: using Terminal from Setup Assistantīonus tidbit 3: creating an image of the install media might not workīonus tidbit 4: don’t bother restoring a Time Machine backup Making install media out of partial macOS installers (“not a valid OS installer application”)ī. Making install media with El Capitan (with access only to Recovery) (requires another Mac and a USB-C cable.) If you’ve got an Apple Silicon Mac, you probably want to perform If your Mac can’t, you’ll need to look for helpĮlsewhere. Note: This blog post is written for Intel Macs, particularly those that canīoot OS X El Capitan (or macOS Sierra, but that’s untested). Neither Chris Warrick nor Apple will be responsible for anyĭamage to your devices caused as a result of using information in this post. What to try (as long as you’ve got an Intel Mac).ĭISCLAIMER: All information in this post is provided as-is, and some of it may But I now have some experience and assorted hints on Throughout the process, manyĪttempts failed miserably. Recently, I reinstalled macOS on my device.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |