modify the icons any proposed solutions on the community forums. Theres nothing to force you to use Japanese, any more than there is with Siri, which I never use either. Thank you. Big Sur really isnt intended to be used unsealed, which in any case breaks one of its major improvements in security. Encrypted APFS volumes are intended for general storage purposes, not for boot volumes. 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. Very few people have experience of doing this with Big Sur. When data is read from the SSV, its current hash is compared with the stored hash to verify that the file hasnt been tampered with or damaged. Of course, when an update is released, this all falls apart. 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.. 4. mount the read-only system volume Well, I though the entire internet knows by now, but you can read about it here: Howard. Disabling SSV on the internal disk worked, but FileVault cant be reenabled as it seems. Correct values to use for disable SIP #1657 - GitHub Further details on kernel extensions are here. Disabling rootless is aimed exclusively at advanced Mac users. csrutil authenticated-root disable to disable crypto verification For the great majority of users, all this should be transparent. It is already a read-only volume (in Catalina), only accessible from recovery! 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). 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. virtualbox.org View topic - BigSur installed on virtual box does not But I could be wrong. Please how do I fix this? Howard. Its not the encrypted APFS that you would use on external storage, but implemented in the T2 as disk controller. 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 There are two other mainstream operating systems, Windows and Linux. You cant then reseal it. Howard. Howard. However, you can always install the new version of Big Sur and leave it sealed. 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. Why is kernelmanagerd using between 15 and 55% of my CPU on BS? How to make root volume writeable | Apple Developer Forums If verification fails, startup is halted and the user prompted to re-install macOS before proceeding. 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. https://developer.apple.com/documentation/kernel/installing_a_custom_kernel_extension, Custom kexts are linked into a file here: /Library/KernelCollections/AuxiliaryKernelExtensions.kc (which is not on the sealed system volume) I dont think you can enable FileVault on a snapshot: its a whole volume encryption surely. You may be fortunate to live in Y country that has X laws at the moment not all are in the same boat. How to completely disable macOS Monterey automatic updates, remove You have to teach kids in school about sex education, the risks, etc. Then you can boot into recovery and disable SIP: csrutil disable. OC Recover [](dmg)csrutil disablecsrutil authenticated-root disableMac RevocerMacOS 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. One of the fundamental requirements for the effective protection of private information is a high level of security. These are very early days with the SSV, and I think well learn the rules and wrinkles in the coming weeks. [] Big Surs Signed System Volume: added security protection eclecticlight.co/2020/06/25/big-surs-signed-system-volume-added-security-protection/ []. Does the equivalent path in/Librarywork for this? Most probable reason is the system integrity protection (SIP) - csrutil is the command line utility. 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 . In Catalina, making changes to the System volume isnt something to embark on without very good reason. She has no patience for tech or fiddling. Putting privacy as more important than security is like building a house with no foundations. Got it working by using /Library instead of /System/Library. It just requires a reboot to get the kext loaded. Thank you I have corrected that now. How to turn off System Integrity Protection on your Mac | iMore enrollment profile that requires FileVault being enabled at all times, this can lead to even more of a headache. Thanks. 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). In your case, that probably doesnt help you run highly privileged utilities, but theyre not really consistent with Mac security over the last few years. To make that bootable again, you have to bless a new snapshot of the volume using a command such as 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. Sadly, everyone does it one way or another. CAUTION: For users relying on OpenCore's ApECID feature , please be aware this must be disabled to use the KDK. All these we will no doubt discover very soon. Nov 24, 2021 6:03 PM in response to agou-ops. % dsenableroot username = Paul user password: root password: verify root password: Recently searched locations will be displayed if there is no search query. Here are the steps. Same issue as you on my MacOS Monterey 12.0.1, Mackbook Pro 2021 with M1 Pro. Thank you for the informative post. (ex: /System/Library/Frameworks/NetworkExtension.framework/Versions/A/Resources/Info.plist). csrutil authenticated root disable invalid command For now. Before explaining what is happening in macOS 11 Big Sur, Ill recap what has happened so far. Apple disclaims any and all liability for the acts, I also read somewhere that you could only disable SSV with FireVault off, but that definitely needs to stay on. I understand the need for SIP, but its hard to swallow this if it has performance impact even on M1. I must admit I dont see the logic: Apple also provides multi-language support. Antimamalo Blog | About All That Count in Life Sorry about that. This in turn means that: If you modified system files on a portable installation of macOS (ie: on an external drive) via this method, any host computer you plug it into will fail to boot the drive if SSV is enabled on the host. Yeah, my bad, thats probably what I meant. Yes, unsealing the SSV is a one-way street. . Search. Assuming Apple doesnt remove that functionality before release then that implies more efficient (and hopefully more reliable) TM backups. iv. I wish you success with it. But why the user is not able to re-seal the modified volume again? and seal it again. This is because the SIP configuration is stored directly in the Security Policy (aka the LocalPolicy). I wouldn't expect csrutil authenticated-root disable to be safe or not safe, either way. that was also explicitly stated on the second sentence of my original post. Immutable system files now reside on the System volume, which not only has complete protection by SIP, but is normally mounted read-only. Change macOS Big Sur system, finder, & folder icons with - PiunikaWeb I wish you the very best of luck youll need it! I input the root password, well, I should be able to do whatever I want, wipe the disk or whatever. And putting it out of reach of anyone able to obtain root is a major improvement. The only difference is that with a non-T2 Mac the encryption will be done behind the scenes after enabling FileVault. Information. 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. I didnt know about FileVault, although in a T2 or M1 Mac the internal disk should still be encrypted as normal. However it did confuse me, too, that csrutil disable doesn't set what an end user would need. Thanks for the reply! Just reporting a finding from today that disabling SIP speeds-up launching of apps 2-3 times versus SIP enabled!!! Socat inappropriate ioctl for device - phf.parking747.it macOS Big Sur Recovery mode If prompted, provide the macOS password after entering the commands given above. 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). I have rebooted directly into Recovery OS several times before instead of shutting down completely., Nov 24, 2021 6:23 PM in response to Encryptor5000, Dec 2, 2021 8:43 AM in response to agou-ops. 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. IMPORTANT NOTE: The csrutil authenticated-root values must be applied before you use this peogram so if you have not already changed and made a Reset NVRAM do it and reboot then use the program. 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 P.S. In addition, you can boot a custom kernel (the Asahi Linux team is using this to allow booting Linux in the future). Apples Develop article. However, it very seldom does at WWDC, as thats not so much a developer thing. Catalina boot volume layout My recovery mode also seems to be based on Catalina judging from its logo. i thank you for that ..allow me a small poke at humor: just be sure to read the question fully , Im a mac lab manager and would like to change the login screen, which is a file on the now-even-more-protected system volume (/System/Library/Desktop Pictures/Big Sur Graphic.heic). If anyone finds a way to enable FileVault while having SSV disables please let me know. I'd say: always have a bootable full backup ready . Yep. (refer to https://support.apple.com/guide/mac-help/macos-recovery-a-mac-apple-silicon-mchl82829c17/mac). Well, privacy goes hand in hand with security, but should always be above, like any form of freedom. Im not sure what your argument with OCSP is, Im afraid. and they illuminate the many otherwise obscure and hidden corners of macOS. Anyone knows what the issue might be? Further hashing is used in the file system metadata itself, from the deepest directories up to the root node, where its called the seal. Can you re-enable the other parts of SIP that do not revolve around the cryptographic hashes? Level 1 8 points `csrutil disable` command FAILED. 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 . 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. So the choices are no protection or all the protection with no in between that I can find. I think you should be directing these questions as JAMF and other sysadmins. Therefore, I usually use my custom display profile to enable HiDPI support at 2560x1080, which requires access to /System/Library/Displays/Contents/Resources/Overrides/. 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 figured as much that Apple would end that possibility eventually and now they have. To remove the symlink, try disabling SIP temporarily (which is most likely protecting the symlink on the Data volume). 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. Time Machine obviously works fine. Apple has been tightening security within macOS for years now. Words of Caution Regarding Modification of System Files Using "csrutil NOTE: Authenticated Root is enabled by default on macOS systems. Updates are also made more reliable through this mechanism: if they cant be completed, the previous system is restored using its snapshot. So whose seal could that modified version of the system be compared against? Certainly not Apple. You missed letter d in csrutil authenticate-root disable. 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.. 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. and thanks to all the commenters! So much to learn. It sounds like Apple may be going even further with Monterey. How to Root Patch with non-OpenCore Legacy Patcher Macs - GitHub csrutil authenticated-root disable to turn cryptographic verification off, then mount the System volume and perform its modifications. 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. 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. Or could I do it after blessing the snapshot and restarting normally? Howard. Im sorry, I dont know. 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. 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. Thank you. Apple keeps telling us how important privacy is for them, and then they whitelist their apps so they have unrestricted access to internet. The SSV is very different in structure, because its like a Merkle tree. As Apples security engineers know exactly how that is achieved, they obviously understand how it is exploitable. Howard. All that needed to be done was to install Catalina to an unencrypted disk (the default) and, after installation, enable FileVault in System Preferences. Major thank you! Yes, completely. But I fathom that the M1 MacBook Pro arriving later this week might give it all a run for the money. You can verify with "csrutil status" and with "csrutil authenticated-root status". omissions and conduct of any third parties in connection with or related to your use of the site. If it is updated, your changes will then be blown away, and youll have to repeat the process. Howard, I am trying to do the same thing (have SSV disables but have FileVault enabled). If you cant trust it to do that, then Linux (or similar) is the only rational choice. 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. 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 put your trust in Microsoft, or in yourself in the case of Linux, you can work well (so Im told) with either. You do have a choice whether to buy Apple and run macOS. call As thats on the writable Data volume, there are no implications for the protection of the SSV. I booted using the volume containing the snapshot (Big Sur Test for me) and tried enabling FIleVault which failed. Ive written a more detailed account for publication here on Monday morning. Solved> Disable system file protection in Big Sur! MacOS Big Sur 11.0 - Index of Need to Know Changes & Links UPDATED!
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