Sixth status update about reproducible live-build ISO images in Jenkins

Roland Clobus rclobus at
Mon Jan 24 15:26:32 UTC 2022

Hello lists,

here is the sixth update of the status for reproducible live-build ISO 
images [1].

New and changed:
* Perl sorting issues in dictionaries-common [3][4] have entered bookworm.
* libxmlb used a pointer address (%p) for a hash value. Upstream [5] has 
been fixed, it is not released yet to sid.
* texlive-base: Reported differences in the generated ls-R [6], patch is 
* texlive-base: More sources for non-reproducibility are noted in the 
Wiki page [1].
* Wiki page updates [1]:
** Added information about the required size and requirements for the 
mount point.
** Restructured the page to place the configuration section more 
* For local image building, I've switched to uncompressed HDD images. 
This saves a lot of time, because the squashfs compression is skipped.
** Several bugfixes related to HDD image building for live-build have 
landed in the git repo [7].
* Migrated the reproducible hook script from the Wiki page and the copy 
in Jenkins to the live-build repo [8]

Future plans/ideas:
* OpenQA: No progress yet
* Recording the configuration used by live-build
** Next step: test some scenarios and write a proposal
** No progress yet
* Reprotest might be used instead of just 2 builds without a short time 
frame, to capture more variations
* Use disorderfs
* Long term: When live-build images are working fine, the work could be 
extended to other images, e.g. the live-wrapper images, the netinst 
images or perhaps even Docker images
* When it is ready, switch to

With kind regards,
Roland Clobus

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