build always makes .zst file

Stephen Ecker

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Apr 2, 2025, 3:53:34 PM4/2/25

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My build always makes .zst compressed files of the images, but I don't have zst specified _anywhere_. any ideas on how to turn this off?

Uladzimir Bely

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Apr 3, 2025, 8:11:34 AM4/3/25

to Stephen Ecker, isar-users

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Check "bitbake -e" output for IMAGE_FSTYPES and you should see where
it's applied.

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Best regards,
Uladzimir.

Stephen Ecker

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Apr 3, 2025, 8:41:28 AM4/3/25

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I checked the output of bitbake -e, the only thing set for IMAGE_FSTYPES is "wic wic.xz", no zst

Stephen Ecker

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Apr 3, 2025, 8:45:54 AM4/3/25

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the only place that "zst" shows up is:

# $SSTATE_PATHSPEC

# set /home/stephen/workspace/build/../isar/meta/classes/sstate.bbclass:42

# "${SSTATE_DIR}/${SSTATE_EXTRAPATHWILDCARD}*/*/${SSTATE_PKGSPEC}*_${SSTATE_PATH_CURRTASK}.tar.zst*"

SSTATE_PATHSPEC="/home/stephen/workspace/build/sstate-cache/*/*/sstate:defaultpkgname:amd64-isar:1.0:r0:amd64:10:*_\${SSTATE_PATH_CURRTASK}

.tar.zst*"

and in a few isar functions: sstate_create_package, sstate_unpack_package and generate_sstatefn

On Thursday, April 3, 2025 at 7:11:34 AM UTC-5 Uladzimir Bely wrote:

Stephen Ecker

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Apr 3, 2025, 8:47:54 AM4/3/25

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(sorry for the repeated replies): it only does it when I build the installer image. the base image only builds .wic.xz, but when the installer target is run, it creates the .wic.zst, but zst is not defined _anywhere_ in my configuration or recipes

Uladzimir Bely

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Apr 4, 2025, 10:22:38 AM4/4/25

to Stephen Ecker, isar-users

Look at `meta-isar/classes/installer-add-rootfs.bbclass` - probably you
need to override IMAGE_DATA_POSTFIX in your configuration.

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Stephen Ecker

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Apr 4, 2025, 10:31:13 AM4/4/25

to Uladzimir Bely, isar-users

This is correct, that's what fixed it for me. Thank you

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