Fails to compile Tahoe beta full installer when running on a Tahoe beta machine

[grahampugh]

🪲 Description

Thought I would put this here for better visibility for others. I notice mist-cli is struggling with compiling the new macOS beta installer, but not sure what the error means. FYI, I'm running this on a Tahoe beta.

It all downloads fine, hence I used --cache-downloads below to save time on the second run:

% sudo mist download installer 26 package --cache-downloads --catalog-url https://swscan.apple.com/content/catalogs/others/index-16beta-16-15-14-13-12-10.16-10.15-10.14-10.13-10.12-10.11-10.10-10.9-mountainlion-lion-snowleopard-leopard.merged-1.sucatalog.gz --include-betas
Password:
┌──────────────────┐
│ INPUT VALIDATION │
└──────────────────┘
  ├─ User is 'root'...
  ├─ Download search string will be '26'...
  ├─ Include betas in search results will be 'true'...
  ├─ Only include compatible installers will be 'false'...
  ├─ Cache downloads will be 'true'...
  ├─ Output directory will be '/Users/Shared/Mist'...
  ├─ Temporary directory will be '/private/tmp/com.ninxsoft.mist'...
  ├─ Force flag has not been set, existing files will not be overwritten...
  ├─ Package name will be 'Install %NAME% %VERSION%-%BUILD%.pkg'...
  ├─ Package identifier will be 'com.company.pkg.%NAME%.%VERSION%.%BUILD%'...
┌────────┐
│ SEARCH │
└────────┘
  ├─ Searching for macOS download '26'...
  ├─ Found [082-55599] macOS Beta 26.0 (25A5279m) [2025-06-09]
┌───────┐
│ SETUP │
└───────┘
  ├─ Nothing to do!
┌──────────┐
│ DOWNLOAD │
└──────────┘
  ├─ [ 1 / 6 ] 082-55599.English.dist......................... [ 10.01 KB / 10.01 KB (100.0%) ]
  │            Verifying... ✓✓✓
  ├─ [ 2 / 6 ] InstallAssistant.pkg........................... [ 17.07 GB / 17.07 GB (100.0%) ]
  │            Verifying... ✓✓✓
  ├─ [ 3 / 6 ] InstallInfo.plist.............................. [  0181  B /  0181  B (100.0%) ]
  │            Verifying... ✓✓✓
  ├─ [ 4 / 6 ] MajorOSInfo.pkg................................ [ 01.26 MB / 01.26 MB (100.0%) ]
  │            Verifying... ✓✓✓
  ├─ [ 5 / 6 ] UpdateBrain.zip................................ [ 04.25 MB / 04.25 MB (100.0%) ]
  │            Verifying... ✓✓✓
  ├─ [ 6 / 6 ] com_apple_MobileAsset_MacSoftwareUpdate.plist.. [ 01.54 MB / 01.54 MB (100.0%) ]
  │            Verifying... ✓✓✓
┌─────────┐
│ INSTALL │
└─────────┘
  ├─ Deleting old image '/private/tmp/com.ninxsoft.mist/082-55599/082-55599.dmg'...
  ├─ Creating image '/private/tmp/com.ninxsoft.mist/082-55599/082-55599.dmg'...
  ├─ Mounting disk image at mount point '/Volumes/082-55599'...
  ├─ Creating new installer '/Volumes/082-55599/Applications/Install macOS Beta.app'...
  └─ Invalid Exit Status Code: '1', Message: 2025-06-11 20:54:53.983 installer[40645:1148661] Opened package is not the same at install time...

📋 Steps to Reproduce

1. sudo mist download installer 26 package --catalog-url https://swscan.apple.com/content/catalogs/others/index-16beta-16-15-14-13-12-10.16-10.15-10.14-10.13-10.12-10.11-10.10-10.9-mountainlion-lion-snowleopard-leopard.merged-1.sucatalog.gz --include-betas

✅ Expected Behaviour

The installer should be compiled and placed in /Applications.

💻 Environment

• mist version (mist --version): 2.1.1
• macOS Version (sw_vers): 26.0/25A5279m
• Hardware (system_profiler SPHardwareDataType):
  • M1

ℹ️ Additional context

• Is this also a bug in Mist.app? Haven't tried sorry.

[wakco]

FYI, this issue is specific to running mist on macOS 26 Tahoe, but not limited to just attempting to build macOS 26 Tahoe, as I have yet to get mist to build a macOS installer for any macOS version (attempted to build 13,14,15 last week, also failed)

[grahampugh]

@wakco sadly not. I've just run the same command on my Mac running 15.6 Beta (24G5054d) and got the same error.

(I'd love a way to just bypass the DMG creation and just run installer -tgt / -pkg /private/tmp/com.ninxsoft.mist/082-55599/InstallAssistant.pkg)

[Moulick]

Same error for sudo mist download installer 24G5074c application --include-betas on Sequoia. Also same error on Mist app, not just cli.

[nicerloop]

Same error trying sudo mist download installer 15.6 iso from Sequoia 15.6, either from CLI or GUI.
Does not seem to be linked with the downloaded image, but to a recent change on host (15.6 / 26).

[ninxsoft]

This should be fixed in #187 🚀