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gogo789 #2 不是的，有解决方案
It’s still possible to make changes to the System volume and then to boot from it, but it’s even more difficult than it was before. Per this post on Eclectic Light Company, you need to boot into the Recovery partition, run csrutil authenticated-root disable to disable verification of the SSV, mount the system partition, make your changes, and then run sudo bless --folder /mountpath/System/Library/CoreServices --bootefi --create-snapshot to create a new snapshot of the system volume that can then be used for booting (albeit without SSV protections).
1. 进恢复模式 csrutil authenticated-root disable
2. 挂载系统分区，进行修改
3. sudo bless --folder /mountpath/System/Library/CoreServices --bootefi --create-snapshot 创建新的 APFS 镜像用来引导
这个我在 beta 时用来禁用 spindump，但是很麻烦，每次系统更新都会导致修改被移除，还要手动创建一次快照