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docs/composefs: Update with latest#2298

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cgwalters wants to merge 1 commit into
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cgwalters:composefs-ondisk-stable
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docs/composefs: Update with latest#2298
cgwalters wants to merge 1 commit into
bootc-dev:mainfrom
cgwalters:composefs-ondisk-stable

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@cgwalters

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In particular, this commits us to supporting in-place upgrades from the current state!

We will leave things like the EROFS v1 switch as a followon, ensuring that we continue to support that as an upgrade path.

@github-actions github-actions Bot added the area/documentation Updates to the documentation label Jul 8, 2026
@bootc-bot bootc-bot Bot requested a review from gursewak1997 July 8, 2026 20:23

@jeckersb jeckersb left a comment

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🎉

@jeckersb jeckersb enabled auto-merge July 8, 2026 20:40
@jeckersb jeckersb added this pull request to the merge queue Jul 8, 2026
@github-merge-queue github-merge-queue Bot removed this pull request from the merge queue due to failed status checks Jul 9, 2026
FROM <base-image> as rootfs
RUN apt|dnf|zypper install ... && bootc container lint --fatal-warnings

# Split the kernel and initramfs out of the rootfs. This moves

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We might want to include a rechunking step here to effectively drop the kernel & initrd from the base image.

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This isn't intended to be a true reference example, we already have too many of those. I'll be sure the rechunking lands in other (downstream) docs in general!

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Looking good! One suggestion.

@cgwalters cgwalters added this pull request to the merge queue Jul 9, 2026
In particular, this commits us to supporting in-place upgrades
from the current state!

We will leave things like the EROFS v1 switch as a followon,
ensuring that we continue to support that as an upgrade path.

Signed-off-by: Colin Walters <[email protected]>
@cgwalters cgwalters force-pushed the composefs-ondisk-stable branch from 1808de2 to 2b84179 Compare July 9, 2026 15:20
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