OS upgrades are also a bit of a pain, but I have automated most of the hassle so its just a bit longer in the trundling phase with a couple of extra steps. Therefore, I usually use my custom display profile to enable HiDPI support at 2560x1080, which requires access to. It is that simple. There are certain parts on the Data volume that are protected by SIP, such as Safari. P.S. customizing icons for Apple's built-in apps, Buying Stuff We Dont Need The TouchArcade Show #550, TouchArcade Game of the Week: Stuffo the Puzzle Bot, The X-Men Take the Spotlight as Marvel Snap Visits Days of Future Past, SwitchArcade Round-Up: Reviews Featuring PowerWash Simulator Midgar DLC, Plus the Latest Releases and Sales, Action-Packed Shoot Em Up AirAttack 2 Updated for the First Time in 6 Years, Now Optimized for Modern Devices, Dead by Daylight Mobile Announces a Sadako Rising Collab Event for its Relaunch on March 15th, Kimono Cats Is Out Now on Apple Arcade Alongside a Few Notable Updates to Existing Games, Minecraft Update 1.20 Is Officially the Trails and Tales Update, Coming Later This Year. The sealed System Volume isnt crypto crap I really dont understand what you mean by that. Very few people have experience of doing this with Big Sur. I havent tried this myself, but the sequence might be something like I don't have a Monterey system to test. agou-ops, User profile for user: 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. I think Id stick with the default icons! System Integrity Protection (SIP) and the Security Policy (LocalPolicy) are not the same thing. 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. Sorted by: 2. i made a post on apple.stackexchange.com here: 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 . # csrutil status # csrutil authenticated-root status RecoveryterminalSIP # csrutil authenticated-root disable # csrutil disable. c. Keep default option and press next. Hello all, I was recently trying to disable the SIP on my Mac, and therefore went to recovery mode. Loading of kexts in Big Sur does not require a trip into recovery. The System volume within a boot Volume Group is now sealed using a tree of cryptographic hashes, as I have detailed here. Howard. Also, you might want to read these documents if you're interested. Now I can mount the root partition in read and write mode (from the recovery): I have tried to avoid this by executing `csrutil disable` with flags such as `with kext with dtrace with nvram with basesystem` and re-enable Authenticated Root Requirement with the `authenticated-root` sub-command you mentioned in the post; all resulted in vain. To start the conversation again, simply you will be in the Recovery mode. 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? 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. 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. and seal it again. I must admit I dont see the logic: Apple also provides multi-language support. 4. 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. It shouldnt make any difference. But what you cant do is re-seal the SSV, which is the whole point of Big Surs improved security. If you really feel the need or compulsion to modify files on the System volume, then perhaps youd be better sticking with Catalina? An how many in 100 users go in recovery, use terminal commands just to edit some config files ? If you cant trust it to do that, then Linux (or similar) is the only rational choice. Update: my suspicions were correct, mission success! It is dead quiet and has been just there for eight years. Am I right in thinking that once you disable authenticated-root, you cannot enable it if youve made changes to the system volume? 1. lagos lockdown news today; csrutil authenticated root disable invalid command This is a long and non technical debate anyway . 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. Reduced Security: Any compatible and signed version of macOS is permitted. Immutable system files now reside on the System volume, which not only has complete protection by SIP, but is normally mounted read-only. Although I havent tried it myself yet, my understanding is that disabling the seal doesnt prevent sealing any fresh installation of macOS at a later date. That said, you won't be able to change SIP settings in Startup Security Utility, because the Permissive Security option isn't available in Startup Security Utility. Late reply rescanning this post: running with csrutil authenticated-root disable does not prevent you from enabling SIP later. Step 16: mounting the volume After reboot, open a new Terminal and: Mount your Big Sur system partition, not the data one: diskutil mount /Volumes/<Volume\ Name. csrutil authenticated-root disable Reboot back into MacOS Find your root mount's device - run mount and chop off the last s, e.g. Looking at the logs frequently, as I tend to do, there are plenty of inefficiencies apparent, but not in SIP and its related processes, oddly. Well, there has to be rules. However, it very seldom does at WWDC, as thats not so much a developer thing. You probably wont be able to install a delta update and expect that to reseal the system either. Thanks in advance. Our Story; Our Chefs When I try to change the Security Policy from Restore Mode, I always get this error: In T2 Macs, their internal SSD is encrypted. But he knows the vagaries of Apple. Trust me: you really dont want to do this in Big Sur. Thank you, and congratulations. Ive been running a Vega FE as eGPU with my macbook pro. I'd say: always have a bootable full backup ready . Yep. macOS 12.0. You can checkout the man page for kmutil or kernelmanagerd to learn more . Reboot the Mac and hold down Command + R keys simultaneously after you hear the startup chime, this will boot Mac OS X into Recovery Mode First, type csrutil disable in the Terminal window and hit enter followed by csrutil authenticated-root disable. For some, running unsealed will be necessary, but the great majority of users shouldnt even consider it as an option. It effectively bumps you back to Catalina security levels. Howard. Critics and painters: Fry, Bell and the twentieth century, Henri Martin: the Divisionist Symbolist 1, https://developer.apple.com/documentation/kernel/installing_a_custom_kernel_extension. . When Authenticated Root is enabled the macOS is booted from a signed volume that is cryptographically protected to prevent tampering with the system volume. This ensures those hashes cover the entire volume, its data and directory structure. Allow MDM to manage kernel extensions and software updates, Disable Kernel Integrity Protection (disable CTRR), Disable Signed System Volume verification, Allow all boot arguments (including Single User Mode). Click Restart If you later want to start using SIP once again (and you really should), then follow these steps again, except this time you'll enter csrutil enable in the Terminal instead. You like where iOS is? Available in Startup Security Utility. This will get you to Recovery mode. This is because the SIP configuration is stored directly in the Security Policy (aka the LocalPolicy). 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. Hoping that option 2 is what we are looking at. As Apples security engineers know exactly how that is achieved, they obviously understand how it is exploitable. If it is updated, your changes will then be blown away, and youll have to repeat the process. My machine is a 2019 MacBook Pro 15. Block OCSP, and youre vulnerable. I think you should be directing these questions as JAMF and other sysadmins. For example, when you open an app without a quarantine flag, several different parts of the security and privacy system perform checks on its signature. []. im able to remount read/write the system disk and modify the filesystem from there , rushing to help is quite positive. i drink every night to fall asleep. Without in-depth and robust security, efforts to achieve privacy are doomed. [] APFS in macOS 11 changes volume roles substantially. All these we will no doubt discover very soon. For Macs without OpenCore Legacy Patcher, simply run csrutil disable and csrutil authenticated-root disable in RecoveryOS For hackintoshes, set csr-active-config to 030A0000 (0xA03) and ensure this is correctly applied You may use RecoveryOS instead however remember that NVRAM reset will wipe this var and require you to re-disable it The bputil man page (in macOS, open Terminal, and search for bputil under the Help menu). Howard. csrutil disable csrutil authenticated-root disable reboot Boot back into macOS and issue the following: Code: mount Note the "X" and "Y" values in "diskXsYsZ" on the first line, which. So it seems it is impossible to have an encrypted volume when SSV is disabled, which really does seem like a mistake to me, but who am I to say. mount the System volume for writing Tampering with the SSV is a serious undertaking and not only breaks the seal which can never then be resealed but it appears to conflict with FileVault encryption too. NOTE: Authenticated Root is enabled by default on macOS systems. In macOS Mojave 10.14, macOS boots from a single APFS volume, in which sensitive system folders and files are mixed with those which users can write to. I also read somewhere that you could only disable SSV with FireVault off, but that definitely needs to stay on. That said, would you describe installing macOS the way I did with Catalina as redundant if my Mac has a T2 chip? We tinkerers get to tinker with them (without doing harm we hope always helps to read the READ MEs!) The root volume is now a cryptographically sealed apfs snapshot. No, because SIP and the security policies are intimately related, you cant AFAIK have your cake and eat it. Click the Apple symbol in the Menu bar. omissions and conduct of any third parties in connection with or related to your use of the site. Because of this, the symlink in the usr folder must reside on the Data volume, and thus be located at: /System/Volumes/Data/usr. I really dislike Apple for adding apps which I cant remove and some of them I cant even use (like FaceTime / Siri on a Mac mini) Oh well Ill see what happens when the European Commission has made a choice by forcing Apple to stop pre-installing apps on their IOS devices.maybe theyll add macOS as well. Howard. Mojave boot volume layout In macOS Big Sur and later, your Mac boots from a cryptographically sealed snapshot. 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. Then I opened Terminal, and typed "csrutil disable", but the result was "csrutil: command not found". Howard. It may not display this or other websites correctly. And you let me know more about MacOS and SIP. These options are also available: Permissive Security: All of the options permitted by Reduced Security are also permitted here. csrutil authenticated-root disable SIP is locked as fully enabled. csrutil authenticated-root disable thing to do, which requires first to disable FileVault, else that second disabling command simply fails. You may also boot to recovery and use Terminal to type the following commands: csrutil disable csrutil authenticated-root disable -> new in Big Sur. Yes, terminal in recovery mode shows 11.0.1, the same version as my Big Sur Test volume which I had as the boot drive. and disable authenticated-root: csrutil authenticated-root disable. You'll need to keep SSV disabled (via "csrutil authenticated-root disable") forever if your root volume has been modified. (Also, Ive scoured all the WWDC reports I could find and havent seen any mention of Time Machine in regards to Big Sur. 1-800-MY-APPLE, or, https://support.apple.com/guide/mac-help/macos-recovery-a-mac-apple-silicon-mchl82829c17/mac, Sales and Run csrutil authenticated-root disableto disable the authenticated root from the System Integrity Protection (SIP). Big Sur really isnt intended to be used unsealed, which in any case breaks one of its major improvements in security. csrutil authenticated-root disable to disable crypto verification So the choices are no protection or all the protection with no in between that I can find. I dont. Those familiar with my file integrity tools will recognise that this is essentially the same technique employed by them. If your Mac has a corporate/school/etc. They have more details on how the Secure Boot architecture works: Nov 24, 2021 5:24 PM in response to agou-ops, Nov 24, 2021 5:45 PM in response to Encryptor5000. So use buggy Catalina or BigBrother privacy broken Big Sur great options.. By the way, I saw about macs with T2 always encrypted stuff, just never tested like if there is no password set (via FileVault enabled by user), then it works like a bitlocker Windows disk on a laptop with TPM ? This command disables volume encryption, "mounts" the system volume and makes the change. My MacBook Air is also freezing every day or 2. No, but you might like to look for a replacement! For example i would like to edit /System/Library/LaunchDaemons/tftp.plist file and add If that cant be done, then you may be better off remaining in Catalina for the time being. Howard. csrutil authenticated-root disable csrutil disable macOS mount <DISK_PATH> 1 2 $ mount /dev/disk1s5s1 on / (apfs, sealed, local, read-only, journaled) / /dev/disk1s5s1 /dev/disk1s5s1 "Snapshot 1"APFS <MOUNT_PATH> ~/mount 1 mkdir -p -m777 ~/mount 1 Yes. from the upper MENU select Terminal. One major benefit to the user is that damaged system installs and updates are no longer possible, as they break the seal. This thread has a lot of useful info for supporting the older Mac no longer supported by Big Sur. But I could be wrong. Its authenticated. Howard. By the way, T2 is now officially broken without the possibility of an Apple patch The main protections provided to the system come from classical Unix permissions with the addition of System Integrity Protection (SIP), software within macOS. And when your system is compromised, what value was there in trying to stop Apple getting private data in the first place? Howard. Disable System Integrity Protection with command: csrutil disable csrutil authenticated-root disable. I am currently using a MacBook Pro 13-inch, Early 2011, and my OS version is 10.12.6. Furthermore, users are reporting that before you can do that, you have to disable FileVault, and it doesnt appear that you can re-enable that either. You need to disable it to view the directory. But I'm already in Recovery OS. Hi, Howard. Thank you for the informative post. 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. I tried multiple times typing csrutil, but it simply wouldn't work. I have more to come over changes in file security and protection on Apple Silicon, but theres nothing I can see about more general use of or access to file hashes, Im afraid. Sorry about that. Its very visible esp after the boot. Now do the "csrutil disable" command in the Terminal. So having removed the seal, could you not re-encrypt the disks? Before explaining what is happening in macOS 11 Big Sur, Ill recap what has happened so far. To make the volume bootable ( here the technical details) a "sanitation" is required with a command such as: In your specific example, what does that person do when their Mac/device is hacked by state security then? Please support me on Patreon: https://www.patreon.com/roelvandepaarWith thanks & praise to God, and with . Howard. Best regards. All that needed to be done was to install Catalina to an unencrypted disk (the default) and, after installation, enable FileVault in System Preferences. Thats quite a large tree! But with its dual 3.06Ghz Xeons providing 12 cores, 48GB of ECC RAM, 40TB of HDD, 4TB of SSD, and 2TB of NVME disks all displayed via a flashed RX-580 on a big, wide screen, it is really hard to find something better. Thank you. What you are proposing making modifications to the system cannot result in the seal matching that specified by Apple. But then again we have faster and slower antiviruses.. Since FileVault2 is handled for the whole container using the T2 I suspect, it will still work.
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