Big Sur 11.0.1 RC2 Installation Issue

Got the exact same problem with my iMac Pro with the same error 🤦‍♂️

Same issue on a 16" MBP.

Seeing this as well on a MBP 16"

I'm getting the same thing. I uninstalled everything and then repeated the steps again with the Console application open and saw this during the "C-R" in the software update pane of system settings:

Code Block 
2020-11-10 18:06:07-08 theon softwareupdated[375]: bridgeOS: Minimum bridge version requirement satisfied ((null)), skipping search for bridgeOS update
2020-11-10 18:06:13-08 theon softwareupdated[375]: bridgeOS: Minimum bridge version requirement satisfied ((null)), skipping search for bridgeOS update
2020-11-10 18:06:25-08 theon softwareupdated[375]: bridgeOS: Minimum bridge version requirement satisfied ((null)), skipping search for bridgeOS update
2020-11-10 18:06:49-08 theon softwareupdated[375]: JS: No bundle at/Applications/SafeView.app
2020-11-10 18:06:54-08 theon softwareupdated[375]: JS: No bundle at/Applications/SafeView.app
2020-11-10 18:07:05-08 theon softwareupdated[375]: bridgeOS: Minimum bridge version requirement satisfied ((null)), skipping search for bridgeOS update

A bit more context after trying the installation again after the above messages:

Code Block 
2020-11-10 18:11:50-08 theon osinstallersetupd[2411]: Retrieved package com.apple.dmg.BaseSystem (linkfile-validated:///System/Volumes/Data/macOS%20Install%20Data/UpdateBundle/AssetData/Restore/BaseSystem.chunklist:::/System/Volumes/Data/macOS%20Install%20Data/UpdateBundle/AssetData/Restore/BaseSystem.dmg)
2020-11-10 18:11:50-08 theon osinstallersetupd[2411]: Started downloading package com.apple.pkg.BridgeOSUpdateCustomer (http://swcdn.apple.com/content/downloads/41/51/001-73002-A_WRHOPHHLA3/wt9h9ieu492d5iadokij8dvq8t2dzg5sgg/BridgeOSUpdateCustomer.pkg)
2020-11-10 18:12:12-08 theon osinstallersetupd[2411]: Retrieved package com.apple.pkg.BridgeOSUpdateCustomer (http://swcdn.apple.com/content/downloads/41/51/001-73002-A_WRHOPHHLA3/wt9h9ieu492d5iadokij8dvq8t2dzg5sgg/BridgeOSUpdateCustomer.pkg)
2020-11-10 18:12:12-08 theon osinstallersetupd[2411]: Started downloading package com.apple.pkg.BridgeOSBrain (http://swcdn.apple.com/content/downloads/41/51/001-73002-A_WRHOPHHLA3/wt9h9ieu492d5iadokij8dvq8t2dzg5sgg/BridgeOSBrain.pkg)
2020-11-10 18:12:12-08 theon osinstallersetupd[2411]: Retrieved package com.apple.pkg.BridgeOSBrain (http://swcdn.apple.com/content/downloads/41/51/001-73002-A_WRHOPHHLA3/wt9h9ieu492d5iadokij8dvq8t2dzg5sgg/BridgeOSBrain.pkg)
2020-11-10 18:12:12-08 theon osinstallersetupd[2411]: Starting bridgeOS update prepare
2020-11-10 18:12:13-08 theon osinstallersetupd[2411]: bridgeOS prepare summary: 17P6610 -> 17P6610, update = 17.16.16610.0.0, brain = 17.16.16610.0.0, variant = com.apple.bridgeOSCustomer, macOS = 19H15 (customer), project = BridgeOSInstall-80, userAuth = 0, prod fused = 1, model = j152fap, client = InstallAssistant, retries = 0, session = C812ABD5-3E91-4C26-A207-1D1493050647: Error Domain=BOSErrorDomain Code=110 "The bridgeOS update doesn't satisfy the given minimum version requirement." UserInfo={bridgeVersion=17.16.16610.0.0,0, minimumVersion=18.16.12561.0.0,0, catalogURL=https://swscan.apple.com/content/catalogs/others/index-11-10.15-10.14-10.13-10.12-10.11-10.10-10.9-mountainlion-lion-snowleopard-leopard.merged-1.sucatalog, NSLocalizedDescription=The bridgeOS update doesn't satisfy the given minimum version requirement.}
2020-11-10 18:12:13-08 theon osinstallersetupd[2411]: bridgeOS update prepare complete
2020-11-10 18:12:13-08 theon osinstallersetupd[2411]: bridgeOS update prepare failed: Error Domain=BOSErrorDomain Code=110 "The bridgeOS update doesn't satisfy the given minimum version requirement." UserInfo={bridgeVersion=17.16.16610.0.0,0, minimumVersion=18.16.12561.0.0,0, catalogURL=https://swscan.apple.com/content/catalogs/others/index-11-10.15-10.14-10.13-10.12-10.11-10.10-10.9-mountainlion-lion-snowleopard-leopard.merged-1.sucatalog, NSLocalizedDescription=The bridgeOS update doesn't satisfy the given minimum version requirement.}
2020-11-10 18:12:13-08 theon osinstallersetupd[2411]: Operation queue failed with error: Error Domain=com.apple.OSInstallerSetup.error Code=602 "An error occurred installing macOS." UserInfo={NSLocalizedRecoverySuggestion=You can try again to complete the installation., NSLocalizedDescription=An error occurred installing macOS., NSUnderlyingError=0x7f9e5dc1c0c0 {Error Domain=BOSErrorDomain Code=110 "The bridgeOS update doesn't satisfy the given minimum version requirement." UserInfo={bridgeVersion=17.16.16610.0.0,0, minimumVersion=18.16.12561.0.0,0, catalogURL=https://swscan.apple.com/content/catalogs/others/index-11-10.15-10.14-10.13-10.12-10.11-10.10-10.9-mountainlion-lion-snowleopard-leopard.merged-1.sucatalog, NSLocalizedDescription=The bridgeOS update doesn't satisfy the given minimum version requirement.}}}
2020-11-10 18:12:13-08 theon InstallAssistant[2410]: Stopped operation queue with Error Domain=com.apple.OSInstallerSetup.error Code=602 "An error occurred installing macOS." UserInfo={NSUnderlyingError=0x7f8d04415ca0 {Error Domain=BOSErrorDomain Code=110 "The bridgeOS update doesn't satisfy the given minimum version requirement." UserInfo={bridgeVersion=17.16.16610.0.0,0, minimumVersion=18.16.12561.0.0,0, catalogURL=https://swscan.apple.com/content/catalogs/others/index-11-10.15-10.14-10.13-10.12-10.11-10.10-10.9-mountainlion-lion-snowleopard-leopard.merged-1.sucatalog, NSLocalizedDescription=The bridgeOS update doesn't satisfy the given minimum version requirement.}}, NSLocalizedRecoverySuggestion=You can try again to complete the installation., NSLocalizedDescription=An error occurred installing macOS.}

Same on iMac Pro (2017)

I'll chime in with a 'me too' from multiple Mac systems (all with a T2). I was trying to go from MacOS 10.15.7 (19H15) to 11.0.1 RC2 on some test systems before GA on Thursday.

Multiple forums have users with the exact same problem, so it's clearly something Apple needs to take care of. I'm certain they're aware. :-)

I did a quick analysis of the HTTP URLs present in my install error log. Of the 76 unique URLs listed, 11 of them gave a 404 response, meaning about 1 in 7 were not found. Example (edited for clarity) of one 404: http://swcdn.apple.com/content/downloads/06/41/***/***/MRTConfigData_10_15.pkg.

This could be unrelated and normal, or it could be that the a file required for the bridge update was not found, so it could not update, and the install failed.

Pure speculation, but a reasonable possibility. If so, apple could drop the missing bits in place on the CDN, and the installers would magically start to work, maybe?

I dug deeper, and if you look at the catalog the installer is using: https://swscan.apple.com/content/catalogs/others/index-11-10.15-10.14-10.13-10.12-10.11-10.10-10.9-mountainlion-lion-snowleopard-leopard.merged-1.sucatalog

And search for "BridgeOSPredicateProductOrdering" you can see it only lists URLs for versions:

Code Block 
17.16.16610.0.0
17.16.14538.0.0
17.16.15580.0.0

You can see in the install logs where it is using this catalog to find the bridgeOS update:

Code Block 
Nov 10 23:15:37 iMac-Pro osinstallersetupd[4758]: OSISDownloadOperation: Using catalog for bridgeOS: https://swscan.apple.com/content/catalogs/others/index-11-10.15-10.14-10.13-10.12-10.11-10.10-10.9-mountainlion-lion-snowleopard-leopard.merged-1.sucatalog
Nov 10 23:15:37 iMac-Pro osinstallersetupd[4758]: OSISDownloadOperation: bridgeOS update is required (minimum bridge version: 18.16.12561.0.0,0)
Nov 10 23:15:41 iMac-Pro osinstallersetupd[4758]: Started downloading package com.apple.pkg.BridgeOSUpdateCustomer (http://swcdn.apple.com/content/downloads/41/51/001-73002-A_WRHOPHHLA3/wt9h9ieu492d5iadokij8dvq8t2dzg5sgg/BridgeOSUpdateCustomer.pkg)
Nov 10 23:16:11 iMac-Pro osinstallersetupd[4758]: Retrieved package com.apple.pkg.BridgeOSUpdateCustomer (http://swcdn.apple.com/content/downloads/41/51/001-73002-A_WRHOPHHLA3/wt9h9ieu492d5iadokij8dvq8t2dzg5sgg/BridgeOSUpdateCustomer.pkg)
Nov 10 23:16:11 iMac-Pro osinstallersetupd[4758]: Started downloading package com.apple.pkg.BridgeOSBrain (http://swcdn.apple.com/content/downloads/41/51/001-73002-A_WRHOPHHLA3/wt9h9ieu492d5iadokij8dvq8t2dzg5sgg/BridgeOSBrain.pkg)
Nov 10 23:16:11 iMac-Pro osinstallersetupd[4758]: Retrieved package com.apple.pkg.BridgeOSBrain (http://swcdn.apple.com/content/downloads/41/51/001-73002-A_WRHOPHHLA3/wt9h9ieu492d5iadokij8dvq8t2dzg5sgg/BridgeOSBrain.pkg)
Nov 10 23:16:11 iMac-Pro osinstallersetupd[4758]: Starting bridgeOS update prepare
Nov 10 23:16:12 iMac-Pro osinstallersetupd[4758]: bridgeOS prepare summary: 17P6610 -> 17P6610, update = 17.16.16610.0.0, brain = 17.16.16610.0.0, variant = com.apple.bridgeOSCustomer, macOS = 19H15 (customer), project = BridgeOSInstall-80, userAuth = 0, prod fused = 1, model = j137ap, client = InstallAssistant, retries = 0, session = FC49A345-A2C3-4E90-AB0D-543B8B2FBFBD: Error Domain=BOSErrorDomain Code=110 "The bridgeOS update doesn't satisfy the given minimum version requirement." UserInfo={bridgeVersion=17.16.16610.0.0,0, minimumVersion=18.16.12561.0.0,0, catalogURL=https://swscan.apple.com/content/catalogs/others/index-11-10.15-10.14-10.13-10.12-10.11-10.10-10.9-mountainlion-lion-snowleopard-leopard.merged-1.sucatalog, NSLocalizedDescription=The bridgeOS update doesn't satisfy the given minimum version requirement.}
Nov 10 23:16:12 iMac-Pro osinstallersetupd[4758]: bridgeOS update prepare complete
Nov 10 23:16:12 iMac-Pro osinstallersetupd[4758]: bridgeOS update prepare failed: Error Domain=BOSErrorDomain Code=110 "The bridgeOS update doesn't satisfy the given minimum version requirement." UserInfo={bridgeVersion=17.16.16610.0.0,0, minimumVersion=18.16.12561.0.0,0, catalogURL=https://swscan.apple.com/content/catalogs/others/index-11-10.15-10.14-10.13-10.12-10.11-10.10-10.9-mountainlion-lion-snowleopard-leopard.merged-1.sucatalog, NSLocalizedDescription=The bridgeOS update doesn't satisfy the given minimum version requirement.}

It seems to me the sucatalog on Apples end needs to be updated to reflect the URL of version 18.16.12561.0.0. I found some other posts online that indicate a "revive" of T2 as per https://support.apple.com/en-gb/guide/apple-configurator-2/apdebea5be51/mac can resolve it, but I have yet to test this myself.

Same exact issue here on a 2019 16" MacBook Pro.

Code Block 
Nov 10 23:18:48 bomber osinstallersetupd[722]: bridgeOS prepare summary: 17P6610 -> 17P6610, update = 17.16.16610.0.0, brain = 17.16.16610.0.0, variant = com.apple.bridgeOSCustomer, macOS = 19H15 (customer), project = BridgeOSInstall-80, userAuth = 0, prod fused = 1, model = j152fap, client = InstallAssistant, retries = 0, session = 6C217CF1-1E4D-46C2-872D-D381C5F5AE72: Error Domain=BOSErrorDomain Code=110 "The bridgeOS update doesn't satisfy the given minimum version requirement." UserInfo={bridgeVersion=17.16.16610.0.0,0, minimumVersion=18.16.12561.0.0,0, catalogURL=https://swscan.apple.com/content/catalogs/others/index-11-10.15-10.14-10.13-10.12-10.11-10.10-10.9-mountainlion-lion-snowleopard-leopard.merged-1.sucatalog, NSLocalizedDescription=The bridgeOS update doesn't satisfy the given minimum version requirement.}
Nov 10 23:18:48 bomber osinstallersetupd[722]: bridgeOS update prepare failed: Error Domain=BOSErrorDomain Code=110 "The bridgeOS update doesn't satisfy the given minimum version requirement." UserInfo={bridgeVersion=17.16.16610.0.0,0, minimumVersion=18.16.12561.0.0,0, catalogURL=https://swscan.apple.com/content/catalogs/others/index-11-10.15-10.14-10.13-10.12-10.11-10.10-10.9-mountainlion-lion-snowleopard-leopard.merged-1.sucatalog, NSLocalizedDescription=The bridgeOS update doesn't satisfy the given minimum version requirement.}
Nov 10 23:18:48 bomber osinstallersetupd[722]: Operation queue failed with error: Error Domain=com.apple.OSInstallerSetup.error Code=602 "An error occurred installing macOS." UserInfo={NSLocalizedRecoverySuggestion=You can try again to complete the installation., NSLocalizedDescription=An error occurred installing macOS., NSUnderlyingError=0x7f9e49991150 {Error Domain=BOSErrorDomain Code=110 "The bridgeOS update doesn't satisfy the given minimum version requirement." UserInfo={bridgeVersion=17.16.16610.0.0,0, minimumVersion=18.16.12561.0.0,0, catalogURL=https://swscan.apple.com/content/catalogs/others/index-11-10.15-10.14-10.13-10.12-10.11-10.10-10.9-mountainlion-lion-snowleopard-leopard.merged-1.sucatalog, NSLocalizedDescription=The bridgeOS update doesn't satisfy the given minimum version requirement.}}}
Nov 10 23:18:48 bomber InstallAssistant[721]: Stopped operation queue with Error Domain=com.apple.OSInstallerSetup.error Code=602 "An error occurred installing macOS." UserInfo={NSUnderlyingError=0x7f8c575b2b20 {Error Domain=BOSErrorDomain Code=110 "The bridgeOS update doesn't satisfy the given minimum version requirement." UserInfo={bridgeVersion=17.16.16610.0.0,0, minimumVersion=18.16.12561.0.0,0, catalogURL=https://swscan.apple.com/content/catalogs/others/index-11-10.15-10.14-10.13-10.12-10.11-10.10-10.9-mountainlion-lion-snowleopard-leopard.merged-1.sucatalog, NSLocalizedDescription=The bridgeOS update doesn't satisfy the given minimum version requirement.}}, NSLocalizedRecoverySuggestion=You can try again to complete the installation., NSLocalizedDescription=An error occurred installing macOS.}

```

Seeing the same issue on a Mac mini 2018, going from Catalina to Big Sur RC2.
Incredibly frustrating and a huge waste of everyone's time.

Running into same issue as well on my 16” MBP

Same issue on a Mac Mini 2018 :-(

While booted into Catalina 10.15.7 running the following solved this for me:

Code Block 
sudo nvram IASICatalogURL=https://swscan.apple.com/content/catalogs/others/index-10.16seed-10.16-10.15-10.14-10.13-10.12-10.11-10.10-10.9-mountainlion-lion-snowleopard-leopard.merged-1.sucatalog

I was then able to proceed with the RC2 installer.

Same issue here with 2018 MacBook Pro (15-inch)

Same here on my 2018 MBP 13''

Same here, 2018 13'' MBP.., this is sad :(