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Oct
10
comment What is the “rootless” feature in El Capitan, really?
@sas08: the answer is incomplete in that it addresses only only one of the many effects of SIP and thus is not useful. If the answer correctly answered the question What is the "Rootless" feature of El Capitan at a technical level? then I would remove my downvote.
Oct
7
comment What is the “rootless” feature in El Capitan, really?
@J.J what about /dev/rdisk0 then? I would be surprised if there's no /dev entry which provides access to an actual device... I will have to set up a Mavericks VM and investigate this. I will post a separate question if I do so.
Oct
7
comment What is the “rootless” feature in El Capitan, really?
@sas08 I am not saying that this answer doesn't contain useful information, only that it doesn't answer the question. It addresses only one small part of the question (lack of DTrace) and doesn't describe what SIP actually is.
Oct
1
comment What is the “rootless” feature in El Capitan, really?
Also, I have downvoted this answer as it doesn't answer the question, namely: What is the "Rootless" feature of El Capitan at a technical level? Will sudo -s still work, and, if so, how will the experience of using a shell as root change?. This answer seems to talk only about DTrace
Oct
1
comment What is the “rootless” feature in El Capitan, really?
You cant even check, for example, if disk encryption is actually working on your machine, since decryption is done by the kernel and theres now no way around that So I can't, for example, run dd if=/dev/disk0 count=2000 | strings? This seems to contradict the other answer
Sep
27
comment I want to make an Apple ID, but someone has already used my email to create their own. How do I kick them out completely?
Yes, I totally agree, that's a much more secure system :-)
Sep
27
comment I want to make an Apple ID, but someone has already used my email to create their own. How do I kick them out completely?
Interesting that you persuaded them by being able to reply from that address. Pretty much any email address can be set as the From: address on an email; the ability to send mail "from" an email has next to nothing to do with being able to receive email at that address.
Sep
12
comment How to get the hand tool back in Preview.app in 10.8?
see @user70427's answer: you can get it back, hold down option + space
Aug
23
comment How does iOS and OS X detect when a Wi-Fi network is a personal hotspot?
I deleted my answer because apparently an iPhone personal hotspot is not an ad-hoc network. I believe there is other data identifying the network as a personal hotspot but I don't have the specifics for an answer yet. (I am fairly certain that it is not based on MAC address as @emotality suggested)
Jul
9
comment Log out other user w/o first switching to that user
That's a much better command line @tripleee, I agree. My awk wasn't as good 5 years ago :-)
Jun
28
comment What is the “rootless” feature in El Capitan, really?
...Also this totally makes me want to write a kext or something to allow myself to create a binary which I can run in the command line to return to unrestricted access!
Jun
28
comment What is the “rootless” feature in El Capitan, really?
Nice, thanks. I asked this question because I was about to link to that quora article on another Stack Exchange question and then realized that was not the correct move ;-)
Jun
27
comment Is it 'OK' to use the root user as a normal user?
@CousinCocaineas I understand it El Capitan will still have a root account, it just means authentication for apps will work differently... but let's find out for sure
Apr
5
comment View desktop of *very remote* Ubuntu box from my MacBook Pro
And if you're already running a VNC server on your mac (Screen Sharing for example), you can use a different local post with: ssh -L 5901:localhost:5900 username@remote_ip and then use vnc://localhost:5901. The 5901 port can be any unused port between 1024-65535 (or from 1-65535 if you're root)
Apr
5
comment Temporarily disabling RAM to mimic a lower spec machine?
If you're talking about enterprise grade virtualization like VMWare ESXi, then you're right @phyrfox -- about CPU speed. There is a performance hit on graphics and video processing which will be noticeable if running Mac OS X. I agree, Virtualization is the right solution when you want to adjust CPU frequency, available cores, hardware, etc. But this question was purely about limiting available RAM, and for that use case I believe that virtualization isn't the right solution.
Apr
4
comment Temporarily disabling RAM to mimic a lower spec machine?
If you're writing to a file, of=/Volumes/RAM\ Disk/random.dat, then you should be fine. if you're writing to the disk, of=/dev/rdisk9, then you have to be root, and it may have to be unmounted. (it should be unmounted, otherwise the system will get confused)
Apr
4
comment Temporarily disabling RAM to mimic a lower spec machine?
But the question was, "Is there some way to temporarily disable RAM without physically removing the chip?", so this does not answer the question
Apr
4
comment Temporarily disabling RAM to mimic a lower spec machine?
-1, sorry... this is not a good comparison. Now, you have virtualized video drivers, virtualized I/O, and a small CPU performance hit. I love Virtualization, but if all you want to do is see how the system would perform with less RAM available this is not a good solution.
Apr
4
comment Temporarily disabling RAM to mimic a lower spec machine?
You can probably just dump all the calculations of the disk size and let dd fill up the whole disk: dd if=/dev/random of=/Volumes/RAM\ Disk/random.dat bs=1024k
Jan
31
comment What would happen if I force installed a Linux driver into Mac OS X?
Also, there is a modprobe equivilent in OS X: kextload