If the host machine natively has Catalina or older installed to its internal disk, its native Recovery Mode will not support the "csrutil authenticated-root" flag in Terminal. Looks like there is now no way to change that? im trying to modify root partition from recovery. [] pisz Howard Oakley w swoim blogu Eclectic Light []. There are certain parts on the Data volume that are protected by SIP, such as Safari. Its a good thing that Ive invested in two M1 Macs, and that the T2 was only a temporary measure along the way. From a security standpoint, youre removing part of the primary protection which macOS 11 provides to its system files, when you turn this off thats why Apple has implemented it, to improve on the protection in 10.15. Since Im the only one making changes to the filesystem (and, of course, I am not installing any malware manually), wouldnt I be able to fully trust the changes that I made? Is that with 11.0.1 release? And afterwards, you can always make the partition read-only again, right? For some, running unsealed will be necessary, but the great majority of users shouldnt even consider it as an option. Thanks to Damien Sorresso for detailing the process of modifying the SSV, and to @afrojer in their comment below which clarifies what happens with third-party kernel extensions (corrected 1805 25 June 2020). Today we have the ExclusionList in there that cant be modified, next something else. Unfortunately this link file became a core part of the MacOS system protected by SIP after upgrading to Big Sur Dec 3, 2021 5:54 PM in response to celleo. And you let me know more about MacOS and SIP. Please post your bug number, just for the record. Additionally, before I update I could always revert back to the previous snapshot (from what I can tell, the original snapshot is always kept as a backup in case anything goes wrong). So when the system is sealed by default it has original binary image that is bit-to-bit equal to the reference seal kept somewhere in the system. It may appear impregnable in Catalina, but mounting it writeable is not only possible but something every Apple updater does without going into Recovery mode. Apple: csrutil disable "command not found" - YouTube How to Root Patch with non-OpenCore Legacy Patcher Macs - GitHub You'll need to keep SSV disabled (via "csrutil authenticated-root disable") forever if your root volume has been modified. Thank you. Intriguing. The sealed System Volume isnt crypto crap I really dont understand what you mean by that. Thank you yes, weve been discussing this with another posting. Sorted by: 2. yes i did. Thank you. In Catalina, the root volume could be mounted as read/write by disabling SIP and entering the following command: Try changing your Secure Boot option to "Medium Security" or "No Security" if you are on a computer with a T2 chip. Certainly not Apple. To disable System Integrity Protection, run the following command: csrutil disable If you decide you want to enable SIP later, return to the recovery environment and run the following command: csrutil enable Restart your Mac and your new System Integrity Protection setting will take effect. In Config.plist go to Gui section (in CC Global it is in the LEFT column 7th from the top) and look in the Hide Volume section ( Top Right in CCG) and Unhide the Recovery if you have hidden Recovery Partition (I always hide Recovery to reduce the clutter in Clover Boot Menu screen). It sounds like Apple may be going even further with Monterey. b. Just great. Its very visible esp after the boot. Yes, unsealing the SSV is a one-way street. It looks like the hashes are going to be inaccessible. Howard. But I wouldnt have thought thered be any fundamental barrier to enabling this on a per-folder basis, if Apple wanted to. Do you guys know how this can still be done so I can remove those unwanted apps ? One thing to note is that breaking the seal in this way seems to disable Apples FairPlay DRM, so you cant access anything protected with that until you have restored a sealed system. Ah, thats old news, thank you, and not even Patricks original article. Howard. How to make root volume writeable | Apple Developer Forums % dsenableroot username = Paul user password: root password: verify root password: Its free, and the encryption-decryption handled automatically by the T2. Every time you need to re-disable SSV, you need to temporarily turn off FileVault each time. That leaves your System volume without cryptographic verification, of course, and whether it will then successfully update in future must be an open question. Search articles by subject, keyword or author. Disable FileVault if enabled, boot into the Recovery Mode, launch Terminal, and issue the following (this is also known as "disabling SSV"): Boot back into macOS and issue the following: Navigate to the "mount" folder and make desired changes to system files (requires "sudo" privileges), then commit the changes via: Obviously, you need to take general precautions when modifying any system file, as it can break your installation (as has been true for as long as macOS itself has existed). 1. - mkidr -p /Users//mnt BTW, I thought that I would not be able to get it past Catalalina, but Big Sur is running nicely. It is well-known that you wont be able to use anything which relies on FairPlay DRM. Thanx. Thats a path to the System volume, and you will be able to add your override. MacOS Big Sur 11.0 - Index of Need to Know Changes & Links UPDATED! By the way, T2 is now officially broken without the possibility of an Apple patch https://forums.macrumors.com/threads/macos-11-big-sur-on-unsupported-macs-thread.2242172/page-264, There is a big-sur-micropatcher that makes unlocking and patching easy here: Once you've done that, you can then mount the volume in write mode to modify it and install GA, and then go on (crossing fingers) to bless it Code: Select all Expand view Each runs the same test, and gets the same results, and it always puzzles me why several identical checks cant be combined into one, with each of those processes accessing the same result. On Macs with Apple silicon SoCs, the SIP configuration is stored inside the LocalPolicy file - SIP is a subset of the security policy. terminal - csrutil: command not found - Ask Different Since FileVault2 is handled for the whole container using the T2 I suspect, it will still work. disabled SIP ( csrutil disable) rebooted mounted the root volume ( sudo mount -o nobrowse -t apfs /dev/disk1s1 /Users/user/Mount) replaced files in /Users/user/Mount created a snapshot ( sudo bless --folder /Users/user/Mount/System/Library/CoreServices --bootefi --create-snapshot) rebooted (with SIP still disabled) Would it really be an issue to stay without cryptographic verification though? Assuming Apple doesnt remove that functionality before release then that implies more efficient (and hopefully more reliable) TM backups. Then you can follow the same steps as earlier stated - open terminal and write csrutil disable/enable. You probably wont be able to install a delta update and expect that to reseal the system either. Press Esc to cancel. First, type csrutil disable in the Terminal window and hit enter followed by csrutil authenticated-root disable. Got it working by using /Library instead of /System/Library. So, if I wanted to change system icons, how would I go about doing that on Big Sur? hf zq tb. Then I opened Terminal, and typed "csrutil disable", but the result was "csrutil: command not found". Howard, Have you seen that the new APFS reference https://developer.apple.com/support/downloads/Apple-File-System-Reference.pdf has a section on Sealed Volumes? But Apple puts that seal there to warrant that its intact in accordance with Apples criteria. In Catalina you could easily move the AppleThunderboltNHI.kext to a new folder and it worked fine, but with the Big Sur beta you cant do that. How to Disable System Integrity Protection (rootless) in Mac OS X Configuring System Integrity Protection System Integrity Protection Guide Table of Contents Introduction File System Protections Runtime Protections Kernel Extensions Configuring System Integrity Protection Revision History Very helpful Somewhat helpful Not helpful Thats quite a large tree! [] Big Surs Signed System Volume: added security protection eclecticlight.co/2020/06/25/big-surs-signed-system-volume-added-security-protection/ []. Im trying to implement the snapshot but you cant run the sudo bless folder /Volumes/Macintosh\ HD/System/Library/CoreServices bootefi create-snapshot in Recovery mode because sudo command is not available in recovery mode. I dont know about Windows, but the base setting for T2 Macs is that most of the contents of the internal storage is permanently encrypted using keys in the Secure Enclave of the T2. Yes. Sadly, everyone does it one way or another. I have a 2020 MacBook Pro, and with Catalina, I formatted the internal SSD to APFS-encrypted, then I installed macOS, and then I also enabled FileVault.. sudo bless --folder /[mountpath]/System/Library/CoreServices --bootefi --create-snapshot to create the new snapshot and bless it Hey Im trying to create the new snapshot because my Mac Pro (Mid 2014) has the issue where it randomly shutdown because of an issue with the AppleThunderboltNHI.kext found in /Volumes/Macintosh\ HD/System/Library/Extensions. One major benefit to the user is that damaged system installs and updates are no longer possible, as they break the seal. ** Hackintosh ** Tips to make a bare metal MacOS - Unraid I must admit I dont see the logic: Apple also provides multi-language support. If its a seal of your own, then thats a vulnerability, because malicious software could then do exactly the same, modify the system and reseal it. if your root is/dev/disk1s2s3, you'll mount/dev/disk1s2, Create a new directory, for example~/mount, Runsudo mount -o nobrowse -t apfs DISK_PATH MOUNT_PATH, using the values from above, Modify the files under the mounted directory, Runsudo bless --folder MOUNT_PATH/System/Library/CoreServices --bootefi --create-snapshot, Reboot your system, and the changes will take place, sudo mount -o nobrowse -t afps /dev/disk1s5 ~/mount, mount: exec /Library/Filesystems/afps.fs/Contents/Resources/mount_afps for /Users/user/mount: No such file or directory. There were apps (some that I unfortunately used), from the App Store, that leaked sensitive information. If I didnt trust Apple, then I wouldnt do business with them, nor develop software for macOS. A walled garden where a big boss decides the rules. Well, there has to be rules. Im a bit of a noob with all this, but could you clarify, would I need to install the kext using terminal in recovery mode? Type at least three characters to start auto complete. As Apples security engineers know exactly how that is achieved, they obviously understand how it is exploitable. Apparently you can now use an APFS-formatted drive with Time Machine in Big Sur: https://appleinsider.com/articles/20/06/27/apfs-changes-affect-time-machine-in-macos-big-sur-encrypted-drives-in-ios-14, Under Big Sur, users will be able to back up directly to an APFS-formatted drive, eliminating the need to reformat any disks.. Re-enabling FileVault on a different partition has no effect, Trying to enable FileVault on the snapshot fails with an internal error, Enabling csrutil also enables csrutil authenticated-root, The snapshot fails to boot with either csrutil or csrutil authenticated-root enabled. When a user unseals the volume, edit files, the hash hierarchy should be re-hashed and the seal should to be accepted (effectively overwritng the (old) reference) Howard. would anyone have an idea what am i missing or doing wrong ? Hell, they wont even send me promotional email when I request it! How can a malware write there ? Apple has extended the features of the csrutil command to support making changes to the SSV. I don't have a Monterey system to test. When you boot a Mac that has SSV enabled, there's really no explicit error seen during a signature failure. Encrypted APFS volumes are intended for general storage purposes, not for boot volumes. Yes Skip to content HomeHomeHome, current page. does uga give cheer scholarships. Thank you. Did you mount the volume for write access? https://apple.stackexchange.com/questions/410430/modify-root-filesystem-from-recovery. Id be inclined to perform a full restore using Configurator 2, which seems daunting but is actually very quick, less than 10 minutes. In Catalina, making changes to the System volume isnt something to embark on without very good reason. Im sorry I dont know. Because of this, the symlink in the usr folder must reside on the Data volume, and thus be located at: /System/Volumes/Data/usr. sudo bless --folder /[mountpath]/System/Library/CoreServices --bootefi --create-snapshot. Maybe I am wrong ? But no apple did horrible job and didnt make this tool available for the end user. I also read somewhere that you could only disable SSV with FireVault off, but that definitely needs to stay on. All that needed to be done was to install Catalina to an unencrypted disk (the default) and, after installation, enable FileVault in System Preferences. Come to think of it Howard, half the fun of using your utilities is that well, theyre fun. VM Configuration. Howard. .. come one, I was running Dr.Unarhiver (from TrendMicro) for months, AppStore App, with all certificates and was leaking private info until Apple banned it. In the same time calling for a SIP performance fix that could help it run more efficiently, When we all start calling SIP its real name antivirus/antimalvare and not just blocker of accessing certain system folders we can acknowledge performance hit. Howard. Am I reading too much into that to think there *might* be hope for Apple supporting general user file integrity at some point in the future? How to Enable & Disable root User from Command Line in Mac - OS X Daily There is a real problem with sealing the System volume though, as the seal is checked against that for the system install. csrutil authenticated-root disable Reboot back into MacOS Find your root mount's device - run mount and chop off the last s, e.g. BTW, I'd appreciate if someone can help to remove some files under /usr because "mount -uw" doesn't work on the "/" root directory. 5. change icons If verification fails, startup is halted and the user prompted to re-install macOS before proceeding. Dont do anything about encryption at installation, just enable FileVault afterwards. But if youre turning SIP off, perhaps you need to talk to JAMF soonest. To make the volume bootable ( here the technical details) a "sanitation" is required with a command such as: Thank you hopefully that will solve the problems. How can I solve this problem? Theres a world of difference between /Library and /System/Library! In Mojave and Catalina I used to be able to remove the preinstalled apps from Apple by disabling system protection in system recovery and then in Terminal mounting the volume but in Big Sur I found that this isnt working anymore since I ran into an error when trying to mount the volume in Terminal. Howard. c. Keep default option and press next. SuccessCommand not found2015 Late 2013 Again, no urgency, given all the other material youre probably inundated with. Just yesterday I had to modify var/db/com.apple.xpc.launchd/disabled.501.plist because if you unload something, it gets written to that file and stays there forever, even if the app/agent/daemon is no longer present that is a trace you may not want someone to find. Pentium G3258 w/RX 480 GA-H97-D3H | Pentium G3258 | Radeon Other iMac 17.1 w/RX480 GA-Z170M-D3H | i5 6500 | Radeon Other Gigamaxx Moderator Joined May 15, 2016 Messages 6,558 Motherboard GIGABYTE X470 Arous Gaming 7 WiFi CPU Ryzen R9 3900X Graphics RX 480 Mac Aug 12, 2020 #4 MAC_OS said: There are two other mainstream operating systems, Windows and Linux. However it did confuse me, too, that csrutil disable doesn't set what an end user would need. Touchpad: Synaptics. Always. https://github.com/barrykn/big-sur-micropatcher. Great to hear! csrutil authenticated root disable invalid command On my old macbook, I created a symbolic link named "X11" under /usr to run XQuartz and forgot to remove the link with it later. Select "Custom (advanced)" and press "Next" to go on next page. However, even an unsealed Big Sur system is more secure than that in Catalina, as its actually a mounted snapshot, and not even the System volume itself. Full disk encryption is about both security and privacy of your boot disk. But what you cant do is re-seal the SSV, which is the whole point of Big Surs improved security. I dont. any proposed solutions on the community forums. Yes, Im fully aware of the vulnerability of the T2, thank you. csrutil authenticated-root disable csrutil disable
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