Boot on Umair's Systems Notebook

Boot on Umair's Systems Notebookhttps://umair-as.github.io/blog/tags/boot/Recent content in Boot on Umair's Systems NotebookHugoen-usThu, 07 May 2026 00:00:00 +0000When the Kernel Outgrew the Bootloader: A Clean Install That Never Bootedhttps://umair-as.github.io/blog/posts/uboot-bootm-len-silent-ab-fallback/Thu, 07 May 2026 00:00:00 +0000https://umair-as.github.io/blog/posts/uboot-bootm-len-silent-ab-fallback/A debug-info kernel overshoots U-Boot’s decompression buffer by 1.85 MiB. The bundle verifies at every layer, RAUC reports success, and the board silently falls back to the old slot, because the one property that mattered is only observable at bootm time on the device.