Linux

48009 readers

811 users here now

From Wikipedia, the free encyclopedia

Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).

Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.

Rules

Posts must be relevant to operating systems running the Linux kernel. GNU/Linux or otherwise.
No misinformation
No NSFW content
No hate speech, bigotry, etc

Related Communities

Community icon by Alpár-Etele Méder, licensed under CC BY 3.0

founded 5 years ago

MODERATORS

nooter692@lemmy.ml

MarcellusDrum@lemmy.ml

cypherpunks@lemmy.ml

cyclohexane@lemmy.ml

d3Xt3r@lemmy.nz

How do you secure your bootloader without secure boot or why doesn't it matter? (lemmy.world)

submitted 2 months ago by j4k3@lemmy.world to c/linux@lemmy.ml

34 comments fedilink hide all child comments

I've made the effort to secure mine and am aware of how the trusted protection module works with keys, Fedora's Anaconda system, the shim, etc. I've seen where some here have mentioned they do not care or enable secure boot. Out of open minded curiosity for questioning my biases, I would like to know if there is anything I've overlooked or never heard of. Are you hashing and reflashing with a CH341/Rπ/etc, or is there some other strategy like super serious network isolation?

you are viewing a single comment's thread
view the rest of the comments

[–] TheButtonJustSpins@infosec.pub -2 points 2 months ago (2 children)

You have to turn off Secure Boot to enable hibernation, and I value hibernation enough to do so.

[–] 69420@lemmy.world 15 points 2 months ago (2 children)

This is patently false. Secure boot and hibernation are not mutually exclusive.

[–] TheButtonJustSpins@infosec.pub 4 points 2 months ago (1 children)

While I believe you, I haven't been able to enable hibernation with it on.

[–] wildbus8979@sh.itjust.works 7 points 2 months ago* (last edited 2 months ago) (1 children)

It's a kernel build config. Debian for one ships with support disabled due to security concerns.

[–] TheButtonJustSpins@infosec.pub 6 points 2 months ago (1 children)

So I'd have to rebuild the kernel, not just provide a kernel argument? That's definitely not a step I'm ready for.

[–] wildbus8979@sh.itjust.works 4 points 2 months ago

Correct

[–] thayer@lemmy.ca 4 points 2 months ago (1 children)

Not mutually exclusive, but it's highly probable that if you're running a mainstream distro, the default kernel is in lockdown mode, preventing hibernation while secure boot is enabled.

[–] skullgiver@popplesburger.hilciferous.nl 3 points 2 months ago* (last edited 1 month ago)

[This comment has been deleted by an automated system]

[–] SteveTech@programming.dev 10 points 2 months ago (1 children)

I believe if your swap partition is on an encrypted LVM, you can still hibernate with kernel lockdown enabled.

[–] 0x0@infosec.pub 2 points 2 months ago

This is my setup on debian. Works without any issues.