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Marc Merlin

marc.merlins.org · Personal blog · on HN since 2013

Marc Merlin, a Linux engineer who has worked at Google, writes about Linux, Btrfs, Windows refunds, server upgrades, and home projects.

What HN saysHN links his Windows Refund Day page and his Google talk on live-upgrading thousands of servers from Red Hat to Debian, citing the history it gives.
26HN people shared it
14linked it in comments
13stories submitted
570story points
2 years agolast shared
2013people per year2026

Most-shared posts

  1. 1
    Windows Refund Day (1999)
    8 people · 376 points · first shared 2019 · 136 comments on HN
  2. 2
    Raid 45
    3 people · 1 points · first shared 2021 · discussion on HN
  3. 3
  4. 4
  5. 5
  6. 6
    Btrfs Talk at Linuxcon JP 2014
    1 people · 2 points · first shared 2014 · discussion on HN
  7. 7
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  9. 9
    Html ref
    1 people · first shared 2019
  10. 10
    Reply to useful
    1 people · first shared 2014
  11. 11
    Btrfs.pdf
    1 people · first shared 2020
  12. 12
  13. 13
  14. 14
    Reply to still harmful
    1 people · first shared 2023
  15. 15
    Abc.mpg
    1 people · first shared 2021

What HN people wrote when they linked it

kazinator · 2023-10-12
That's how mailing lists should work. Many mailing lists today reject posts from non-subscribers. Of those that allow posts from non-subscribers, you will find that many are configured such that you will not get a reply, due to "reply-to munging". Your message will go to the list, but with a Reply-to: header designating that list, instead of (or in addition to) setting the more modern mailing-list-related headers. Reply-to-all isn't a list policy; it's a behavior of the individuals. Some people don't reply to all. They think they are, but only the post author gets their reply. That is one of the motivations behind the Reply-to. https://marc.merlins.org/netrants/reply-to-still-harmful.html
smoldesu · 2022-10-17
There is the infamous "Windows Refund Day" http://marc.merlins.org/linux/refundday/
caller9 · 2022-07-07
* Got a crappy knock-off Dustin Diamond page that wasn't official and looked like it was the result of a 12 year old and a copy of MS Frontpage and a case of Jolt Cola. * A "furniture porn" site that was horrific. Not the modern usage where it's a lot of photos of nice furniture, the other interpretation. No humans, just weird ass pictures of chairs. * Then something actually good: http://marc.merlins.org/linux/refundday/ Apparently there was a Windows Refund day in 1999 where *nix users could get a refund for the copy of Windows that came in their PC.
gen220 · 2022-03-22
See also https://marc.merlins.org/linux/talks/ProdNG-LinuxCon2013/ProdNG.pdf which has some interesting history and context from that time. In paper form (more gory details): https://www.usenix.org/system/files/conference/lisa13/lisa13-merlin.pd…
zhengyi13 · 2021-03-10
I immediately thought of Marc Merlin's old raid45 test for would-be sysadmins: http://marc.merlins.org/linux/raid45.html
cletus · 2021-03-10
Years ago someone at Google did this with RAID 45 [1]. [1]: http://marc.merlins.org/linux/raid45.html
curveship · 2021-02-16
Check out the local TV interview of "Eric Ramen" :D : http://marc.merlins.org/linux/refundday/videos/abc.mpg
espadrine · 2018-12-16
Why do you choose not to use Btrfs' send and receive commands? They do what rsync does, a bit more efficiently, unless I am missing something. http://marc.merlins.org/perso/btrfs/post_2014-03-22_Btrfs-Tips_-Doing-…
ultramancool · 2016-02-25
I'm using btrfs on ubuntu 15.10 right now and I can tell you from experience - it's unstable junk still. I have to manually rebalance my filesystem because it decides I'm out of free space and then that sometimes fails and things get even more complicated. This has really turned me off it. See here for some details of the ridiculousness: http://marc.merlins.org/perso/btrfs/post_2014-05-04_Fixing-Btrfs-Files…
nisa · 2014-09-27
Everything I've read (status link from the official wiki: http://marc.merlins.org/perso/btrfs/post_2014-03-23_Btrfs-Raid5-Status… says don't touch raid5/6 yet. Maybe the pages are overly pessimistic but lack of recovery features sounds like a no-go for me?
comex · 2014-04-08
Note the (also very old) opposing argument: http://marc.merlins.org/netrants/reply-to-useful.html Personally, I've almost never wanted to privately reply to a mailing list posts (and I'm under the impression that doing so in most contexts is vaguely rude), but redundant CCs in reply-all chains are ugly, so I prefer munging Reply-To.
pbhjpbhj · 2019-01-29
You're probably right. However, these (below) suggest that HTML3 spec at least had layout attributes like align, wrap, clear on p; and had width for hr (it was a Netscape extension on HTML2 too, apparently). Also since HTML2 textarea had cols and rows attributes. There was also default styling on blockquote and lists that have indents. \  was used for horizontal "alignment" (tabs); code and pre too. I'm going to say there was some layout "tools" prior to CSS. Quite interesting to read the specs now, at the time I was just groping around in the dark by myself, learning by reading source of live sites. Would have probably been much easier if I'd known a spec existed! https://www.w3.org/People/Raggett/book4/ch02.html -- MSIE promise to include CSS Nov '95. http://marc.merlins.org/htmlearn/html-ref.html#P -- HTML3 spec, I think?, dated 1995. Go up one level to find HTML2 spec. Further aside: spacer GIFs I never came across until about MSIE4, avoided them myself, too much of a purist. In the Mosaic vs Netscape Navigator days I don't think anyone had started to attempt pixel-matched designs across different UA??

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