[Git][reproducible-builds/reproducible-website][master] Incorporate suggestions of Larry Doolittle.

[Chris Lamb (@lamby)]

Chris Lamb pushed to branch master at Reproducible Builds / reproducible-website


Commits:
ba7fd7d7 by Chris Lamb at 2022-04-28T08:57:25-07:00
Incorporate suggestions of Larry Doolittle.

- - - - -


1 changed file:

- _docs/system_images.md


Changes:

=====================================
_docs/system_images.md
=====================================
@@ -56,17 +56,19 @@ It might also be necessary to:
 SquashFS metadata & compression
 ===============================
 
-When compressing SquashFS images, metadata and compression can make the output unreproducible.
+When compressing SquashFS images, metadata and compression can make the output
+unreproducible.
 
-Using a version of `mksquashfs` that contains the following patches has been sufficient
-to make some system images reproducible:
+When building SquashFS images, older versions of the tools sometimes yielded
+unreproducible results. A good `mksquashfs` will:
 
- - honoring `$SOURCE_DATE_EPOCH` for various timestamps:
-   <https://github.com/squashfskit/squashfskit/commit/0ab12a8585373be2de5129e14d979c62e7a90d82>
- - clamping content timestamps to `$SOURCE_DATE_EPOCH`:
-   <https://github.com/squashfskit/squashfskit/commit/32a07d4156a281084c90a4b78affc8b0b32a26fc>
- - remove `frag_deflator_thread`:
-   <https://github.com/squashfskit/squashfskit/commit/afc0c76a170bd17cbd29bbec6ae6d2227e398570>
+* Honor $SOURCE_DATE_EPOCH for various timestamps
+* 'Clamp' content timestamps to $SOURCE_DATE_EPOCH
+* Not reorder fragments based on multithreading conditions
+
+[squashfs-tools](https://github.com/plougher/squashfs-tools) 4.5.1 (in Debian
+*bookworm*) is should work here, having absorbed important features from
+[squashfskit](https://github.com/squashfskit/squashfskit).
 
 Root filesystem content
 =======================



View it on GitLab: https://salsa.debian.org/reproducible-builds/reproducible-website/-/commit/ba7fd7d7e1ae14a34ee234afab98caac9be0977a

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