22.03.3 x86 Image Builder issues

For Developers
1

Not sure if it qualifies for an issue at github or is an user error, hence posting here.

  1. I believe I used to be able to indicate the desired kernel and rootfs partition size in the command line when running make, like this: CONFIG_TARGET_KERNEL_PARTSIZE=128 CONFIG_TARGET_ROOTFS_PARTSIZE=256 make image PROFILE="generic" .... However, this doesn't seem to work anymore and results in the following error: openwrt error: ext4_allocate_best_fit_partial: failed to allocate 4440 blocks, out of space? (tested by creating an image with enough packages to go over 104Mb) and requires editing the values in the .config. Am I doing something wrong? Can I still set the desired partition sizes when running make without modifying .config?

  2. If I do modify the .config and the image builds fine, I get the following warning: .../staging_dir/host/bin/grub-bios-setup: warning: Your BIOS Boot Partition is under 1 MiB, please increase its size.. (that's the message verbatim, it has two periods). I found this discussion in Chinese on the matter and changing 256 to 1024 on the line 56 of the target/linux/x86/image/Makefile indeed works. I wonder if this can be replaced with the variable from .config and/or command line instead of being hardcoded.

I could totally send a PR to replace the hardcoded value with the variable, however I do not feel confident naming said variable nor adding it to the .config. For now I've just created a patch file to fix the Makefile before the make command is ran.

  1. By default the IB creates ext4-combined-efi, ext4-combined, as well as squashfs-combined-efi and squashfs-combied. Would be great if there were different profiles for x86 to create ext4 images and squashfs images (say generic and generic-squashfs). It takes not an insignificant time to create the squashfs images, would be great not to waste electrons on that.
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3

I got the exact same error when attempting to set a custom SquashFS partition size just now with current snapshot and 23.03.5. In my case the Image Builder .config file was changed to CONFIG_TARGET_KERNEL_PARTSIZE=64 and CONFIG_TARGET_ROOTFS_PARTSIZE=2048 . When I patched the Makefile as per the Chinese link all worked ok. You can patch the correct section of the makefile with something like simple this below, but seems like a bug to me.

sed -i '/\$(CONFIG_TARGET_ROOTFS_PARTSIZE) \$(IMAGE_ROOTFS)/,/256/ s/256/'"$ROOTFS_PARTSIZE"'/' "$SOURCE_DIR/target/linux/x86/image/Makefile"
4

Evidently, still an issue with 23.05.0.

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5

I am compiling OpenWrt 23.05.2 and still encounter this problem.

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6

FWIW, it has been working fine for me for over a year. Just built 23.05-SNAPSHOT with no issues. Maybe 64/128 MB for kernel is too much?

grep -E "CONFIG_TARGET_KERNEL_PARTSIZE|CONFIG_TARGET_ROOTFS_PARTSIZE" .config
CONFIG_TARGET_KERNEL_PARTSIZE=32
CONFIG_TARGET_ROOTFS_PARTSIZE=2048
7

Patched .config file works as stated in my original message, the issue is that specifying the options on the command line when running IB stopped working at some point.

8

having this issue as well, building 23.05.2.
I specified CONFIG_TARGET_ROOTFS_PARTSIZE in the .config and got the same warning: BIOS Boot Partition is under 1 MiB.

had to use the following, but not sure why 1024 solves the issue:

(line 52, not 56).

.

I guess you already know you can specify to ignore squashfs in .config, but if not:

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9

I've linked file in master, not in a specific commit, so if the file changes, the line number may change as well. I've created a patch file for myself to take care of updating the Makefile.

Cheers, I was already manipulating the .config file anyways, now I'll be removing the squashfs images from being built too!

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