Beijing GNU/Linux User Group @beijinglug@mastodon.sdf.org

最近兩天在給 AOSC/Retro 研究怎麼把現代 Linux Kernel (5.4.114 LTS) 塞進軟碟開機，原因是許多 486 等級的機器並沒有辦法直接從 CD-ROM 啟動，於是然後我做到了把 PATA (IDE) 硬碟/光碟機驅動，甚至是 Network Stack（盡量把大多數非必要 Driver 弄成 Module，放進搭配的 CD image）塞進 1108KiB 的 bzImage。還有個 150KiB 的 Initramfs，裡面是 busybox 和配套 init script，用來自動掛載 CD-ROM。

有趣的事情來了，SYSLINUX 這個 Bootloader 尺寸太大 (175KiB)，讓我很難塞東西，於是我拿 FreeDOS 的 KERNEL.SYS (46KiB) 加上 loadlin.exe （原始 42KiB，用 upx 壓縮後 11KiB） 取代它，成功省下 100KiB 以上。

最終成果是可以直接從軟碟啟動，並且只須要 8MiB 記憶體就能成功啟動。

#Linux #FloppyDisk #FreeDOS

ChinGNUx - 面向中文用户定制的操作系统

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The Free Software Foundation (FSF) gave its Award for Advancement of Free Software to Conservancy's Policy Fellow & Hacker-in-Residence, Bradley M. Kuhn. Bradley Kuhn's acceptance speech urged software freedom activists to “speak truth to power” & refuse to write proprietary software. https://sfconservancy.org/news/2021/mar/22/fsf-award-bkuhn/

LibreOffice is free software - but that's means more than just zero cost. It's about having the freedom to use, study, change and share the software. Learn more here: https://blog.documentfoundation.org/blog/2021/02/14/free-software-its-about-much-more-than-zero-cost/ (Oh, and how many free software project logos do you recognise in this image?)

#DRM isn't just an annoyance -- it's a violation of your right to use the items you own as you see fit. Learn more about our Defective by Design campaign at defectivebydesign.org, and follow our campaign account at @endDRM.

Is your school forcing you to use Zoom, Skype, or other proprietary videoconferencing software to learn or teach? We want to help you stand up for your rights! Sign and share our petition, and tell us about your school: https://u.fsf.org/34d

Don't forget our last educational video: watch and share "Rewind," which asks if, in a world where technology can mean the difference between life and death, we can afford the restrictions proprietary software places on progress. (Spoiler alert: the answer is no.) https://u.fsf.org/rewind

Amazing work from @fsfi on Comparison of Instant Messengers 👌

While ethical use of software is important, a copyright license isn't the right place to enforce it. We must begin with the principle that all software should be free. Read more in our article from the 2019 Bulletin: https://u.fsf.org/2zo

The Free Software Foundation and Defective by Design are now on Mastodon! Visit us at https://hostux.social/@fsf and https://hostux.social/@endDRM.

Twitter VS Fediverse

Associate members are the lifeblood of the FSF, which is why we're extending our membership drive, with a goal of 500 total new members, until January 18. Join today, and get your friends to join and stand up for #UserFreedom! https://u.fsf.org/38v

Too chilly to free the software? We can help. Zip-up "Free Software, Free Society" hoodies are in stock: https://u.fsf.org/37s