FYI, I found most enlightening. See: About macOS recovery function: Restart the computer, press and hold command + R to enter the recovery mode when the screen is black (you can hold down command + R until the apple logo screen appears) to enter the recovery mode, and then click the menu bar, " Utilities >> Terminal". If verification fails, startup is halted and the user prompted to re-install macOS before proceeding. You do have a choice whether to buy Apple and run macOS. Enabling FileVault doesnt actually change the encryption, but restricts access to those keys. ), that is no longer built into the prelinked kernel which is used to boot your system, instead being built into /Library/KernelCollections/AuxiliaryKernelExtensions.kc. Also, type "Y" and press enter if Terminal prompts for any acknowledgements. Also SecureBootModel must be Disabled in config.plist. I have the same problem and I tried pretty much everything, SIP disabled, adding to /System/Library/Displays/Contents/Resources/Overrides/DisplayVendorID-#/DisplayProductID-*, This site contains user submitted content, comments and opinions and is for informational purposes only. you're booting from your internal drive recovery mode, so: A) el capitan is on your internal drive type /usr/bin/csrutil disable B) el capitan is on your external . Yes Skip to content HomeHomeHome, current page. If I didnt trust Apple, then I wouldnt do business with them, nor develop software for macOS. JavaScript is disabled. Hello, you say that you can work fine with an unsealed volume, but I also see that for example, breaking the seal prevents you from turning FileVault ON. A good example is OCSP revocation checking, which many people got very upset about. macOS 12.0. Your mileage may differ. 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. It sounds like Apple may be going even further with Monterey. You install macOS updates just the same, and your Mac starts up just like it used to. But he knows the vagaries of Apple. and they illuminate the many otherwise obscure and hidden corners of macOS. Level 1 8 points `csrutil disable` command FAILED. Increased protection for the system is an essential step in securing macOS. Well, its entirely up to you, but the prospect of repeating this seven or eight times (or more) during the beta phase, then again for the release version, would be a deterrent to me! Apple: csrutil disable "command not found"Helpful? In macOS Big Sur and later, your Mac boots from a cryptographically sealed snapshot. Most probable reason is the system integrity protection (SIP) - csrutil is the command line utility. This can take several attempts. (refer to https://support.apple.com/guide/mac-help/macos-recovery-a-mac-apple-silicon-mchl82829c17/mac). I suspect that youd need to use the full installer for the new version, then unseal that again. csrutil authenticated root disable invalid command. Howard. Apple keeps telling us how important privacy is for them, and then they whitelist their apps so they have unrestricted access to internet. It effectively bumps you back to Catalina security levels. I think youll find that if you turn off or disable all macOS platform security, starting an app will get even faster, and malware will also load much more quickly too. All you need do on a T2 Mac is turn FileVault on for the boot disk. An how many in 100 users go in recovery, use terminal commands just to edit some config files ? Each to their own I am getting FileVault Failed \n An internal error has occurred.. im trying to modify root partition from recovery. -l I dont think its novel by any means, but extremely ingenious, and I havent heard of its use in any other OS to protect the system files. Assuming you have entered the Recovery mode already, by holding down the Power button when powering-up/rebooting. Do you know if theres any possibility to both have SIP (at least partially) disabled and keep the Security Policy on the Reduced level, so that I can run certain high-privileged utilities (such as yabai, a tiling window manager) while keeping the ability to run iOS apps? Then i recreater Big Sur public beta with Debug 0.6.1 builded from OCBuilder but always reboot after choose install Big Sur, i found ib OC Wiki said about 2 case: Black screen after picker and Booting OpenCore reboots . I suspect that quite a few are already doing that, and I know of no reports of problems. I must admit I dont see the logic: Apple also provides multi-language support. The sealed System Volume isnt crypto crap I really dont understand what you mean by that. You get to choose which apps you use; you dont get to choose what malware can attack, and putting privacy above security seems eccentric to say the least. Follow these step by step instructions: reboot. There are certain parts on the Data volume that are protected by SIP, such as Safari. This workflow is very logical. As mentioned by HW-Tech, Apple has added additional security restrictions for disabling System Integrity Protection (SIP) on Macs with Apple silicon. 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? https://developer.apple.com/support/downloads/Apple-File-System-Reference.pdf, macOS 11 Big Sur bezpieczniejszy: pliki systemowe podpisane - Mj Mac, macOS 11.0 Big Sur | wp, https://github.com/rickmark/mojo_thor/blob/master/SSV/mtree.i.txt, Michael Tsai - Blog - APFS and Time Machine in Big Sur, macOS 11 Big Sur Arrives Thursday, Delay Upgrades - TidBITS, Big Sur Is Here, But We Suggest You Say No Sir for Now - TidBITS, https://github.com/barrykn/big-sur-micropatcher, https://arstechnica.com/gadgets/2020/11/apple-lets-some-big-sur-network-traffic-bypass-firewalls/, https://apple.stackexchange.com/questions/410430/modify-root-filesystem-from-recovery, Updates: Sierra, High Sierra, Mojave, Catalina, Big Sur, SilentKnight, silnite, LockRattler, SystHist & Scrub, xattred, Metamer, Sandstrip & xattr tools, T2M2, Ulbow, Consolation and log utilities, Taccy, Signet, Precize, Alifix, UTIutility, Sparsity, alisma, Text Utilities: Nalaprop, Dystextia and others, Spundle, Cormorant, Stibium, Dintch, Fintch and cintch. Thank you yes, thats absolutely correct. Big Sur, however, will not allow me to install to an APFS-encrypted volume on the internal SSD, even after unlocking said volume, so its unclear whether thats a bug or design choice. 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. 6. undo everything and enable authenticated root again. Would you like to proceed to legacy Twitter? What you can do though is boot from another copy of Big Sur, say on an external disk, and have different security policies when running that. Thanks. Do so at your own risk, this is not specifically recommended. The seal is verified against the value provided by Apple at every boot. In Recovery mode, open Terminal application from Utilities in the top menu. Updates are also made more reliable through this mechanism: if they cant be completed, the previous system is restored using its snapshot. Period. But why the user is not able to re-seal the modified volume again? % dsenableroot username = Paul user password: root password: verify root password: Thats a path to the System volume, and you will be able to add your override. This makes it far tougher for malware, which not only has to get past SIP but to mount the System volume as writable before it can tamper with system files. I wish you the very best of luck youll need it! Always. csrutil disable. You can also only seal a System volume in an APFS Volume Group, so I dont think Apple wants us using its hashes to check integrity. And you let me know more about MacOS and SIP. hf zq tb. Am I right in thinking that once you disable authenticated-root, you cannot enable it if youve made changes to the system volume? It is dead quiet and has been just there for eight years. If anyone finds a way to enable FileVault while having SSV disables please let me know. csrutil authenticated-root disable to turn cryptographic verification off, then mount the System volume and perform its modifications. There is a real problem with sealing the System volume though, as the seal is checked against that for the system install. Howard. [] Big Surs Signed System Volume: added security protection eclecticlight.co/2020/06/25/big-surs-signed-system-volume-added-security-protection/ []. Of course you can modify the system as much as you like. Sorry about that. This saves having to keep scanning all the individual files in order to detect any change. You like where iOS is? Why is kernelmanagerd using between 15 and 55% of my CPU on BS? I solved this problem by completely shutting down, then powering on, and finally restarting the computer to Recovery OS. Press Esc to cancel. My wifes Air is in today and I will have to take a couple of days to make sure it works. I essentially want to know how many levels of protection you can retain after making a change to the System folder if that helps clear it up. For years I reflexively replaced the Mail apps unappealing postage stamp icon with a simple, old-fashioned, eye-catching mailbox it just seemed to make visual sense to me but with all the security baked into recent incarnations of macOS, I would never attempt that now. Maybe I am wrong ? 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) I wouldn't expect csrutil authenticated-root disable to be safe or not safe, either way. That makes it incredibly difficult for an attacker to hijack your Big Sur install, but it has [], I installed Big Sur last Tuesday when it got released to the public but I ran into a problem. So whose seal could that modified version of the system be compared against? Thanks for the reply! Block OCSP, and youre vulnerable. In your specific example, what does that person do when their Mac/device is hacked by state security then? 3. boot into OS enrollment profile that requires FileVault being enabled at all times, this can lead to even more of a headache. Thank you. Im sorry I dont know. For now. Howard. As I dont spend all day opening apps, that overhead is vanishingly small for me, and the benefits very much greater. Dont do anything about encryption at installation, just enable FileVault afterwards. Thank you. Why I am not able to reseal the volume? You have to assume responsibility, like everywhere in life. Thank you hopefully that will solve the problems. How you can do it ? 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? Thus no user can re-seal a system, only an Apple installer/updater, or its asr tool working from a sealed clone of the system. Whatever you use to do that needs to preserve all the hashes and seal, or the volume wont be bootable. For without ensuring rock-solid security as the basis for protecting privacy, it becomes all too easy to bypass everything. Boot into (Big Sur) Recovery OS using the . Just great. 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. Id like to modify the volume, get rid of some processes who bypasses the firewalls (like Little Snitch read their blog!) Encrypted APFS volumes are intended for general storage purposes, not for boot volumes. Unlike previous versions of macOS and OS X when one could turn off SIP from the regular login system using Opencore config.plist parameter NVRAM>Add>csr-active-config and then issue sudo spctl --master-disable to allow programs installation from Anywhere, with Big Sur one must boot into Recover OS to turn the Security off.. Time Machine obviously works fine. Thanx. Best regards. One major benefit to the user is that damaged system installs and updates are no longer possible, as they break the seal. does uga give cheer scholarships. csrutil authenticated-root disable to disable crypto verification Thank you. Im not sure what your argument with OCSP is, Im afraid. No, but you might like to look for a replacement! Begin typing your search above and press return to search. @JP, You say: 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. ask a new question. Couldnt create snapshot on volume /Volumes/Macintosh HD: Operation not permitted, i have both csrutil and csrutil authenticated-root disabled. The best explanation I've got is that it was never really intended as an end user tool, and so that, as it's currently written, to get a non-Apple internal setting . Intriguing. And afterwards, you can always make the partition read-only again, right? If you want to delete some files under the /Data volume (e.g. 4. And putting it out of reach of anyone able to obtain root is a major improvement. Thank you. But I'm already in Recovery OS. . [] FF0F0000-macOS Big Sur0xfffroot [], Found where the merkle tree is stored in img4 files: This is Big Sur Beta 4s mtree = https://github.com/rickmark/mojo_thor/blob/master/SSV/mtree.i.txt, Looks like the mtree and root_hash are stored in im4p (img4 payload) files in the preboot volume. Just be careful that some apps that automate macOS disk cloning and whatnot are not designed to handle the concept of SSV yet and will therefore not be bootable if SSV is enabled. Please support me on Patreon: https://www.patreon.com/roelvandepaarWith thanks & praise to God, and with . Im rather surprised that your risk assessment concluded that it was worth disabling Big Surs primary system protection in order to address that, but each to their own. Again, no urgency, given all the other material youre probably inundated with. I was trying to disable SIP on my M1 MacBook Pro when I found doing so prevents the Mac from running iOS apps an alert will appear upon launching that the app cant be opened because Security Policy is set to Permissive Security and Ill need to change the Security Policy to Full Security or Reduced Security.. The only difference is that with a non-T2 Mac the encryption will be done behind the scenes after enabling FileVault. The OS environment does not allow changing security configuration options. Simply create a folder structure /Library/Displays/Contents/Resources/Overrides and copy there your folder with the patched EDID override file you have created for your screen (DisplayVendorID-XXXX/DisplayProductID-XXXX). As thats on the writable Data volume, there are no implications for the protection of the SSV. Information. Ive installed Big Sur on a test volume and Ive booted into recovery to run csrutil authenticated-root disable but it seems that FileVault needs to be disabled on original Macintosh HD as well, which I find strange. 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) 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. Please how do I fix this? 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. Apple acknowledged it was a bug, but who knows in Big Sur yet (I havent had a chance to test yet). It is already a read-only volume (in Catalina), only accessible from recovery! So it did not (and does not) matter whether you have T2 or not. Could you elaborate on the internal SSD being encrypted anyway? Im hoping I dont have to do this at all, but it might become an issue for some of our machines should users upgrade despite our warning(s). My MacBook Air is also freezing every day or 2. To make that bootable again, you have to bless a new snapshot of the volume using a command such as sudo bless --folder / [mountpath]/System/Library/CoreServices --bootefi --create-snapshot 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). I hope so I ended up paying an arm and a leg for 4 x 2 TB SSDs for my backups, plus the case. Authenticated Root _MUST_ be enabled. Its a good thing that Ive invested in two M1 Macs, and that the T2 was only a temporary measure along the way. Apple disclaims any and all liability for the acts, omissions and conduct of any third parties in connection with or related to your use of the site. Further hashing is used in the file system metadata itself, from the deepest directories up to the root node, where its called the seal. And when your system is compromised, what value was there in trying to stop Apple getting private data in the first place? Reduced Security: Any compatible and signed version of macOS is permitted. Apple doesnt keep any of the files which need to be mutable in the sealed System volume anyway and put significant engineering effort into ensuring that using firmlinks. 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. Sure. Paste the following command into the terminal then hit return: csrutil disable; reboot You'll see a message saying that System Integrity Protection has been disabled, and the Mac needs to restart for changes to take effect.