If you put your trust in Microsoft, or in yourself in the case of Linux, you can work well (so Im told) with either. I also expect that you will be able to install a delta update to an unsealed system, leaving it updated but unsealed. Thank you. [] 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 []. Major thank you! That is the big problem. /etc/synthetic.conf does not seem to work in Big Sur: https://developer.apple.com/forums/thread/670391?login=true. "Invalid Disk: Failed to gather policy information for the selected disk" Unfortunately I cant get past step 1; it tells me that authenticated root is an invalid command in recovery. 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. I figured as much that Apple would end that possibility eventually and now they have. Why choose to buy computers and operating systems from a vendor you dont feel you can trust? Big Sur really isnt intended to be used unsealed, which in any case breaks one of its major improvements in security. CAUTION: For users relying on OpenCore's ApECID feature , please be aware this must be disabled to use the KDK. Sorted by: 2. It looks like the hashes are going to be inaccessible. This thread has a lot of useful info for supporting the older Mac no longer supported by Big Sur. Thanks, we have talked to JAMF and Apple. Information. When Authenticated Root is enabled the macOS is booted from a signed volume that is cryptographically protected to prevent tampering with the system volume. The only time youre likely to come up against the SSV is when using bootable macOS volumes by cloning or from a macOS installer. As a warranty of system integrity that alone is a valuable advance. Howard. 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). But I'm already in Recovery OS. 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. Not necessarily a volume group: a VG encrypts as a group, but volumes not in a group can of course be encrypted individually. Time Machine obviously works fine. I suspect that youd need to use the full installer for the new version, then unseal that again. You may also boot to recovery and use Terminal to type the following commands: csrutil disable csrutil authenticated-root disable -> new in Big Sur. Thats a path to the System volume, and you will be able to add your override. I'm trying to boor my computer MacBook Pro 2022 M1 from an old external drive running High Sierra. Howard. Also, you might want to read these documents if you're interested. .. 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. Youve stopped watching this thread and will no longer receive emails when theres activity. Im not saying only Apple does it. You probably wont be able to install a delta update and expect that to reseal the system either. enrollment profile that requires FileVault being enabled at all times, this can lead to even more of a headache. I am currently using a MacBook Pro 13-inch, Early 2011, and my OS version is 10.12.6. I also read somewhere that you could only disable SSV with FireVault off, but that definitely needs to stay on. Of course, when an update is released, this all falls apart. I mean the hierarchy of hashes is being compared to some reference kept somewhere on the same state, right? Im sorry, I dont know. 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. But he knows the vagaries of Apple. Show results from. All good cloning software should cope with this just fine. Have you contacted the support desk for your eGPU? In Release 0.6 and Big Sur beta x ( i dont remember) i can installed Big Sur but keyboard not working (A). Full disk encryption is about both security and privacy of your boot disk. Howard. Why do you need to modify the root volume? Howard. I wouldn't expect csrutil authenticated-root disable to be safe or not safe, either way. We tinkerers get to tinker with them (without doing harm we hope always helps to read the READ MEs!) This ensures those hashes cover the entire volume, its data and directory structure. At it's most simple form, simply type 'dsenableroot' into the Terminal prompt, enter the users password, then enter and verify a root user password. mount -uw /Volumes/Macintosh\ HD. This can take several attempts. The error is: cstutil: The OS environment does not allow changing security configuration options. Hell, they wont even send me promotional email when I request it! One of the fundamental requirements for the effective protection of private information is a high level of security. This command disables volume encryption, "mounts" the system volume and makes the change. You have to teach kids in school about sex education, the risks, etc. To remove the symlink, try disabling SIP temporarily (which is most likely protecting the symlink on the Data volume). However it did confuse me, too, that csrutil disable doesn't set what an end user would need. The System volume within a boot Volume Group is now sealed using a tree of cryptographic hashes, as I have detailed here. restart in Recovery Mode Recently searched locations will be displayed if there is no search query. https://apple.stackexchange.com/questions/410430/modify-root-filesystem-from-recovery. provided; every potential issue may involve several factors not detailed in the conversations 3. I suspect that youll have to repeat that for each update to macOS 11, though, as its likely to get wiped out during the update process. SIP is about much more than SIP, of course, and when you disable it, you cripple your platform security. 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 . 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. All postings and use of the content on this site are subject to the, Additional information about Search by keywords or tags, let myEmail = "eskimo" + "1" + "@apple.com", /System/Library/Displays/Contents/Resources/Overrides/, read-only system volume change we announced last year, Apple Developer Forums Participation Agreement, mount_apfs: volume could not be mounted: Permission denied, sudo cp -R /System/Library/Displays /Library/, sudo cp ~/Downloads/DisplayProductID-413a.plist /Library/Displays/Contents/Resources/Overrides/DisplayVendorID-10ac/DisplayProductID-413a, Find your root mount's device - runmountand chop off the last s, e.g. All that needed to be done was to install Catalina to an unencrypted disk (the default) and, after installation, enable FileVault in System Preferences. To make the volume bootable ( here the technical details) a "sanitation" is required with a command such as: Then you can follow the same steps as earlier stated - open terminal and write csrutil disable/enable. The bputil man page (in macOS, open Terminal, and search for bputil under the Help menu). 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. Thank you. `csrutil disable` command FAILED. Could you elaborate on the internal SSD being encrypted anyway? 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. These options are also available: Permissive Security: All of the options permitted by Reduced Security are also permitted here. The main protections provided to the system come from classical Unix permissions with the addition of System Integrity Protection (SIP), software within macOS. For some, running unsealed will be necessary, but the great majority of users shouldnt even consider it as an option. Howard. 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.. Without it, its all too easy for you to run software which is signed with a certificate which Apple has revoked, but your Mac has no means to check that. Also SecureBootModel must be Disabled in config.plist. So having removed the seal, could you not re-encrypt the disks? To start the conversation again, simply It would seem silly to me to make all of SIP hinge on SSV. Thank you. The MacBook has never done that on Crapolina. 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? 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 post your bug number, just for the record. But no apple did horrible job and didnt make this tool available for the end user. So the choices are no protection or all the protection with no in between that I can find. I suspect that quite a few are already doing that, and I know of no reports of problems. I keep a macbook for 8years, and I just got a 16 MBP with a T2 it was 3750 EUR in a country where the average salary is 488eur. Howard. Howard. My recovery mode also seems to be based on Catalina judging from its logo. Apple cant provide thousands of different seal values to cater for every possible combination of change system installations. Encryption should be in a Volume Group. I didnt know about FileVault, although in a T2 or M1 Mac the internal disk should still be encrypted as normal. []. No one forces you to buy Apple, do they? Ill report back when Ive had a bit more of a look around it, hopefully later today. network users)? 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. % dsenableroot username = Paul user password: root password: verify root password: and thanks to all the commenters! cstutil: The OS environment does not allow changing security configuration options. There are a lot of things (privacy related) that requires you to modify the system partition Best regards. So for a tiny (if that) loss of privacy, you get a strong security protection. But why the user is not able to re-seal the modified volume again? 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. Now I can mount the root partition in read and write mode (from the recovery): Howard. Of course you can modify the system as much as you like. csrutil disable. Id be interested to hear some old Unix hands commenting on the similarities or differences. 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. Would you like to proceed to legacy Twitter? Hopefully someone else will be able to answer that. SSV seems to be an evolution of that, similar in concept (if not of execution), sort of Tripwire on steroids. 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 csrutil authenticated root disable invalid command. You can then restart using the new snapshot as your System volume, and without SSV authentication. Thank you. In Big Sur, it becomes a last resort. Open Utilities Terminal and type csrutil disable Restart in Recovery Mode again and continue with Main Procedure Main Procedure Open Utilities Terminal and type mount A list of things will show up once you enter in (mount) in Terminal Write down the disk associated with /Volumes/Macintosh HD (mine was /dev/disk2s5) Howard. If you choose to modify the system, you cant reseal that, but you can run Big Sur perfectly well without a seal. Boot into (Big Sur) Recovery OS using the . Howard. I will look at this shortly, but I have a feeling that the hashes are inaccessible except by macOS. The file resides in /[mountpath]/Library/Displays/Contents/Resources/Overrides therefore for Catalina I used Recovery Mode to edit those files. 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 . any proposed solutions on the community forums. captured in an electronic forum and Apple can therefore provide no guarantee as to the efficacy of 6. undo everything and enable authenticated root again. Once youve done it once, its not so bad at all. Refunds. Its a good thing that Ive invested in two M1 Macs, and that the T2 was only a temporary measure along the way. Or could I do it after blessing the snapshot and restarting normally? If you need to install a kernel extension (not one of the newer System Extensions, DriverKit extension, etc. Without in-depth and robust security, efforts to achieve privacy are doomed. Howard. Again, no urgency, given all the other material youre probably inundated with. I seem to recall that back in the olden days of Unix, there was an IDS (Intrusion Detection System) called Tripwire which stored a checksum for every system file and watched over them like a hawk. Catalina boot volume layout I was able to do this under Catalina with csrutil disable, and sudo mount -uw/ but as your article indicates this no longer works with Big Sur.
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