Couldnt create snapshot on volume /Volumes/Macintosh HD: Operation not permitted, i have both csrutil and csrutil authenticated-root disabled. So I think the time is right for APFS-based Time Machine, based on the availability of reasonably-priced hardware for most users to support it. In Catalina, making changes to the System volume isnt something to embark on without very good reason. Then you can follow the same steps as earlier stated - open terminal and write csrutil disable/enable. Howard. . SSV seems to be an evolution of that, similar in concept (if not of execution), sort of Tripwire on steroids. When I try to change the Security Policy from Restore Mode, I always get this error: 1- break the seal (disable csrutil and authenticated root) 2- delete existing snapshot (s) and tag an empty one to be able to boot 3- inject the kext with opencore (not needed if you are able to load the kext from /S/L/E.. But I'm already in Recovery OS. Thank you, and congratulations. sudo bless --folder /[mountpath]/System/Library/CoreServices --bootefi --create-snapshot. Id like to modify the volume, get rid of some processes who bypasses the firewalls (like Little Snitch read their blog!) Howard. 4. mount the read-only system volume Of course there were and are apps in the App Store which exfiltrate (not just leak, which implies its accidental) sensitive information, but thats totally different. If you choose to modify the system, you cant reseal that, but you can run Big Sur perfectly well without a seal. Refunds. See the security levels below for more info: Full Security: The default option, with no security downgrades permitted. No need to disable SIP. Apple has extended the features of the csrutil command to support making changes to the SSV. The OS environment does not allow changing security configuration options. Its a good thing that Ive invested in two M1 Macs, and that the T2 was only a temporary measure along the way. Please post your bug number, just for the record. If you dont trust Apple, then you really shouldnt be running macOS. Would you like to proceed to legacy Twitter? Could you elaborate on the internal SSD being encrypted anyway? Howard. My MacBook Air is also freezing every day or 2. agou-ops, User profile for user: Im not sure what your argument with OCSP is, Im afraid. 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. I suspect that youd need to use the full installer for the new version, then unseal that again. omissions and conduct of any third parties in connection with or related to your use of the site. For now. Mac added Signed System Volume (SSV) after Big Sur, you can disable it in recovery mode using follow command csrutil authenticated-root disable if SSV enabled, it will check file signature when boot system, and will refuse boot if you do any modify, also will cause create snapshot failed this article describe it in detail This command disables volume encryption, "mounts" the system volume and makes the change. the notorious "/Users/Shared/Previously Relocated Items" garbage, forgot to purge before upgrading to Catalina), do "sudo mount -uw /System/Volumes/Data/" first (run in the Terminal after normal booting). So much to learn. and seal it again. Touchpad: Synaptics. So yes, I have to stick with it for a long time now, knowing it is not secure (and never will be), to make it more secure I have to sacrifice privacy, and it will look like my phone lol. It had not occurred to me that T2 encrypts the internal SSD by default. Yes Skip to content HomeHomeHome, current page. This to me is a violation. Tell a Syrian gay dude what is more important for him, some malware wiping his disk full of pictures and some docs or the websites visited and Messages sent to gay people he will be arrested and even executed. Story. Id be interested to hear some old Unix hands commenting on the similarities or differences. I will look at this shortly, but I have a feeling that the hashes are inaccessible except by macOS. Howard. 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. As thats on the writable Data volume, there are no implications for the protection of the SSV. Hoping that option 2 is what we are looking at. Also SecureBootModel must be Disabled in config.plist. It is dead quiet and has been just there for eight years. 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. 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 Howard. While I dont agree with a lot of what Apple does, its the only large vendor that Ive never had any privacy problem with. Disabling SSV on the internal disk worked, but FileVault cant be reenabled as it seems. Did you mount the volume for write access? But Apple puts that seal there to warrant that its intact in accordance with Apples criteria. Thank you. 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. 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. 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? I use it for my (now part time) work as CTO. Id be interested to know in what respect you consider those or other parts of Big Sur break privacy. /etc/synthetic.conf does not seem to work in Big Sur: https://developer.apple.com/forums/thread/670391?login=true. The only choice you have is whether to add your own password to strengthen its encryption. Sorry about that. Thanks for your reply. Sorted by: 2. Ive been running a Vega FE as eGPU with my macbook pro. and thanks to all the commenters! [] those beta issues, changes in Big Surs security scheme for the System volume may cause headaches for some usersif nothing else, reverting to Catalina will require []. Click the Apple symbol in the Menu bar. Would you want most of that removed simply because you dont use it? At its native resolution, the text is very small and difficult to read. Follow these step by step instructions: reboot. This will get you to Recovery mode. Also, you might want to read these documents if you're interested. Once youve done it once, its not so bad at all. However, you can always install the new version of Big Sur and leave it sealed. Maybe when my M1 Macs arrive. Automaty Ggbet Kasyno Przypado Do Stylu Wielu Hazardzistom, Ktrzy Lubi Wysokiego Standardu Uciechy Z Nieprzewidywaln Fabu I Ciekawymi Bohaterami 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.. Thank you. I have a screen that needs an EDID override to function correctly. A good example is OCSP revocation checking, which many people got very upset about. Thank you hopefully that will solve the problems. Well, would gladly use Catalina but there are so many bugs and the 16 MacBook Pro cant do Mojave (which would be perfect) since it is not supported . 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. In T2 Macs, their internal SSD is encrypted. 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. Howard. ask a new question. REBOOTto the bootable USBdrive of macOS Big Sur, once more. ). But beyond that, if something were to go wrong in step 3 when you bless the folder and create a snapshot, you could also end up with an non-bootable system. Why is kernelmanagerd using between 15 and 55% of my CPU on BS? 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. Ive seen many posts and comments with people struggling to bypass both Catalinas and Big Surs security to install an EDID override in order to force the OS recognise their screens as RGB. Thank you. SuccessCommand not found2015 Late 2013 Increased protection for the system is an essential step in securing macOS. I'm trying to boor my computer MacBook Pro 2022 M1 from an old external drive running High Sierra. Level 1 8 points `csrutil disable` command FAILED. you will be in the Recovery mode. 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. My recovery mode also seems to be based on Catalina judging from its logo. 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. Certainly not Apple. What is left unclear to me as a basic user: if 1) SSV disabling tampers some hardware change to prevent signing ever again on that maching or 2) SSV can be re-enabled by reinstallation of the MacOS Big Sur. Is that with 11.0.1 release? P.S. Howard. Thanks for your reply. provided; every potential issue may involve several factors not detailed in the conversations Im sorry I dont know. I do have to ditch authenticated root to enable the continuity flag for my MB, but thats it. 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? csrutil authenticated-root disable Reboot back into MacOS Find your root mount's device - run mount and chop off the last s, e.g. [] APFS in macOS 11 changes volume roles substantially. Immutable system files now reside on the System volume, which not only has complete protection by SIP, but is normally mounted read-only. Search articles by subject, keyword or author. I suspect that quite a few are already doing that, and I know of no reports of problems. And putting it out of reach of anyone able to obtain root is a major improvement. MacBook Pro 14, Thankfully, with recent Macs I dont have to engaged in all that fragile tinkering. 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. Why I am not able to reseal the volume? that was also explicitly stated on the second sentence of my original post. Thanks for the reply! These options are also available: Permissive Security: All of the options permitted by Reduced Security are also permitted here. Further hashing is used in the file system metadata itself, from the deepest directories up to the root node, where its called the seal. Hello all, I was recently trying to disable the SIP on my Mac, and therefore went to recovery mode. I think you should be directing these questions as JAMF and other sysadmins. Whatever you use to do that needs to preserve all the hashes and seal, or the volume wont be bootable. If you can do anything with the system, then so can an attacker. All you need do on a T2 Mac is turn FileVault on for the boot disk. And your password is then added security for that encryption. Before explaining what is happening in macOS 11 Big Sur, Ill recap what has happened so far. The MacBook has never done that on Crapolina. Howard. 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. This is a long and non technical debate anyway . Sure. Thank you I have corrected that now. The merkle tree is a gzip compressed text file, and Big Sur beta 4 is here: https://github.com/rickmark/mojo_thor/blob/master/SSV/mtree.i.txt.
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