5 ms·

You used to be able (maybe still are?) to "rm" the files on a mounted efivarfs. See the relevant systemd issue ([1]). [1] https://github.com/systemd/systemd/is

• merb 9y ago
  well windows can get write access to these aswell. (just not by using rm or any other tool to remove files by default). I think this is a big difference and should probably be addressed. make /sys read-only and allow to write them differently with a interface where I need to call THIS_METHOD_CAN_BREAK_A_SYSTEM_IF_USED_INCORRECT_WRITE_SYS() command. but well, systemd guys will/won't do that.
  • JdeBP 9y ago
    It wasn't a systemd thing. The people who relate the tale as if it were a systemd thing or something that the systemd people did are ill-informed. Much as in the case of the headlined bug at hand, it was entirely a kernel thing. This was even stated outright at the time by the creator of that particular kernel mechanism. To learn the real story, go and read https://news.ycombinator.com/item?id=11152880 https://news.ycombinator.com/item?id=11152880 where you will find Matthew Garrett xyrself participating in the discussion.
• mjg59 9y ago
  Not any more. Non-spec variables are initially immutable, so can't be removed until you toggle that.