| 19 Jul 2021 |
 andi- | * You can look at the bootstrap tarball. From the top of my head those contain:
- static busybox (with unxz, ash and tar applet in i686 mode but could be 64bit as well on x86)
- patchelf to patch the binaries included in the tarball
- glibc
- a reduced set of GCC libs (for example the C++ std::fs .so is missing)
- a version of bash, gzip, coreutils and i believe GNU make
- obviously a copy of glibc
| 11:31:54 |
| andi- | I've a branch where I tried to get rid of patchelf during the bootstrap phase we ca could use relative RPATHs. | 11:32:38 |
| andi- | * I've a branch where I tried to get rid of patchelf as during the bootstrap phase we can could use relative RPATHs. | 11:32:49 |
| andi- | That work ended up requriing patching each and every binary in the tarball (after unpacking) with a wrapper script that invokes the correct dynamic loader with them... Not sure how Guix gets around that issue of the bootstrap files requiring a dynamic loader. | 11:34:08 |
| andi- | All the talk about the minimal bootstrap are great but how do you execute the very first shell that you spawn you MES stuff with? | 11:34:40 |
| andi- | * All the talk about the minimal bootstrap are great but how do you execute the very first shell that you spawn your MES stuff with? | 11:34:49 |
 Reventlov | Redacted or Malformed Event | 11:40:22 |
| andi- | What drives our tinycc compilation if all you have is an assembler? If you want to bootstrap the Nixpkgs stdenv you need to somehow provide a shell as part of the bootstrap process. | 11:41:35 |
| andi- | You could also impurely use the hosts /bin/sh that is always there during a build... | 11:42:15 |
|  j-k joined the room. | 15:01:05 |
 siraben | minimal bootstrap issue https://github.com/NixOS/nixpkgs/issues/123095 | 16:52:56 |
| siraben | Like Guix we have a great opportunity to just reduce the bootstrap without affecting anything else (modulo some rebuilds) | 16:53:49 |
 tomberek | andi-: I presume one can hand-assemble an execvpe call directly if needed. Would be smaller than bringing in a shell. But one has to assume a few resident things anyway, a POSIX shell isn’t onerous as an assumption, and a filesystem, and host OS. From a different angle; another fun bootstrapping exercise: https://niedzejkob.p4.team/bootstrap/miniforth/ | 22:40:54 |
| 20 Jul 2021 |
|  ldesgoui joined the room. | 14:36:47 |
|  sumner left the room. | 21:42:46 |
| 25 Jul 2021 |
| tomberek | Updated the gnome build report: https://tomberek.info/r13y.com/
grahamc (he/him) I'm not sure people are aware of https://r13y.com/trivial/index.html , https://r13y.com/iso_minimal/index.html and https://r13y.com/iso_gnome/index.html . Their textual content is wrong, but I'm working on PRs to fix that. | 20:42:12 |
 @grahamc:nixos.org | Great! | 20:43:36 |
| @grahamc:nixos.org | I think it will not be so hard to make it actually succeed in building, too :). | 20:44:11 |
| tomberek | I have a fairly weak machine doing the gnome build; takes 4 days, but it eventually succeeds. | 21:01:15 |
| 26 Jul 2021 |
 Gytis Ivaskevicius | In reply to @tomberek:matrix.org
I have a fairly weak machine doing the gnome build; takes 4 days, but it eventually succeeds. dam, thats alot of days. Lack of ram or something? May I know for reference what hardware is it running? | 03:01:18 |
| tomberek |
dam, thats alot of days. Lack of ram or something? May I know for reference what hardware is it running?
Dell PowerEdge with dual Intel Xeon 5160 with 16GiB ECC RAM. It's an old server running in my basement.
| 13:50:06 |
| 27 Jul 2021 |
| siraben | does anyone want to look at https://github.com/NixOS/nixpkgs/pull/85542 ? (full source bootstrap of Rust) | 11:49:36 |
| 28 Jul 2021 |
|  stick changed their display name from prusnak to stick. | 15:09:43 |
| 29 Jul 2021 |
|  srid changed their display name from srid (on hiatus) to srid. | 01:28:38 |
| stick changed their display name from stick to stick2. | 16:25:23 |
| stick changed their display name from stick2 to stick. | 16:25:57 |
|  Artturin joined the room. | 17:27:20 |
| 30 Jul 2021 |
 raboof | https://github.com/NixOS/nixpkgs/pull/120858 was just merged which should enable building the unoptimized python bytecode again, which is great for performance but likely brings back an unreproducibility. | 09:06:14 |
| raboof | the good news is we have a clear suspect for where that unreproducibility might come from, https://github.com/NixOS/nixpkgs/issues/132037 - no patch yet though :) | 09:06:43 |
| stick changed their display name from stick to stick3. | 10:32:55 |
