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with HTTPS for ; Thu, 18 Dec 2025 13:48:55 -0000 X-Groupsio-URL: https://lists.openembedded.org/g/openembedded-core/message/228125 On 12/18/25 13:46, Paul Barker wrote: > On Thu, 2025-12-18 at 11:34 +0000, Paul Barker wrote: >> On Thu, 2025-12-18 at 12:15 +0200, Dragomir, Daniel via >> lists.openembedded.org wrote: >>> When wic is used in standalone mode, it relies on host tools such as >>> debugfs. For directory host->image copies into ext* partitions, wic >>> uses scripted debugfs "-f" input with multiple mkdir/write commands. >>> >>> Older host debugfs versions (< 1.47) may behave unreliably in this >>> mode and can silently miss files. This does not affect builds using >>> debugfs from OE where the version is known to be sufficiently new. >>> >>> Add a debugfs version check and emit a warning when an older host >>> debugfs is detected. The warning is shown once per run and does not >>> alter execution. >> >> If the risk here is silently missing files, resulting in a corrupted >> rootfs or worse, I think this should be a hard error. >> >> Consider the case where someone relies on a device having a firewall >> enabled, but /etc/nftables.conf is silently missed during construction >> of the rootfs ext4 image. That could result in all ports being open. This failure can only occur when copying directories into an already created WIC image with an ext* partition. It does not affect image or rootfs construction. My understanding is that `wic cp` is a post-creation image manipulation tool and is not used during rootfs generation or WIC image creation. It is intended solely for modifying an existing WIC image without mounting it. >> >> On the kirkstone branch we have e2fsprogs 1.46.5, does the same debugfs >> issue apply there or has it been patched? I built a kirkstone SDK and tested this again: debugfs 1.46.5 works fine, and all ~1500 files were copied successfully. This issue appears to affect only version 1.45. I can send a v2 of the patch to adjust the minimum required version. > > Also, do you have any links to upstream bug reports or the commit(s) > that fixed this? I can't find anything relevant in the recent e2fsprogs > release notes. No, I have not investigated so far why older versions of scripted debugfs (-f) fail to copy complex directory structures. Adding a warning was discussed in this thread for a patch I sent to fix copying directories into a WIC image with an ext* partition. I also explained how I discovered this behavior on different servers while testing the fix. I only tested standalone usage of wic, using host tools from e2fsprogs. https://lists.openembedded.org/g/openembedded-core/topic/115585333#msg228042 Regards, Daniel > > Best regards, >