Bryan Steele @canadianbryan@mastodon.social

#openbsd X240 bios updated 😎
get the .iso for your model from https://support.lenovo.com/au/en/solutions/len-22133
pkg_add geteltorito
plug a blank USB stick (will be overwritten)
geteltorito file.iso | dd of=/dev/rsd<n>c bs=1024k (replace <n> by the actual device number for your USB stick - /!\ be careful to not overwrite anoter disk)
reboot from USB.
et voilà.

An oldie but a goodie, Ted Unangst describing the 2Q (two queues) algorithm that #OpenBSD uses for the buffer cache.

https://www.tedunangst.com/flak/post/2Q-buffer-cache-algorithm

#OpenBSD #development poll
Which of the following Twitch streams/VODs would you watch of me:

1. Would you watch a Twitch stream of me doing routine ports work?
2. Would you watch a stream of me doing virtual porting workshops?
3. Something else?
4. All of the above?

Trying to think of new ways to get people involved.

OpenBSD awesomeness: sqlite3 manpages! https://marc.info/?t=153019462600004&r=1&w=2 #sqlite3 #openbsd #manpages

My Mastopeeps will be the first to learn that I have a Patreon video.

I'm told it doesn't suck.

https://www.patreon.com/mwlucas

Year progress ▓▓▓▓▓▓▓░░░░░░░░ 47% 2018 Fundraising Campaign ▓░░░░░░░░░░░░░░ 14%

Seems like we need to catch up.
https://www.openbsdfoundation.org/donations.html

#OpenBSD

We're already nearly half-way through the year, don't forget to donate to the #OpenBSD Foundation 2018 campaign. Still a long way to go to reach its 300K goal! 😎

https://www.openbsdfoundation.org/campaign2018.html

https://www.openbsdfoundation.org/donations.html

Also don't forget to check the projects want.html page, which helps developers immensely ☺️

https://www.openbsd.org/want.html

Awesome modification for vmd(8) in #OpenBSD. Coming soon to a snapshot near you!
https://cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.sbin/vmd/control.c?rev=1.24&content-type=text/x-cvsweb-markup

#OpenBSD gamers and those who want to learn a bit about what's possible in terms of #gaming on OpenBSD, mark your calendars for next Saturday at 20:00 UTC! I will stream a few games, show how to get them to run, and answer questions.

https://www.twitch.tv/events/RpA4L0a9QH6eBvyEurwMCw

"Our TLBleed exploit successfully leaks a 256-bit EdDSA key from libgcrypt (used in e.g. GPG) with a
98% success rate after just a single observation of signing operation on a co-resident hyperthread and just 17 seconds of analysis time."

https://www.blackhat.com/us-18/briefings.html#tlbleed-when-protecting-your-cpu-caches-is-not-enough

@canadianbryan Just learned that the vuln is semi-public: https://www.vusec.net/2018/05/tlbleed-blackhat-usa-2018/ and it will be described in 2 papers at USENIX Security.