rob thijssen
477d43aacd
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A dnf upgrade to 7.1.8 installed the kernel rpm cleanly, then ran /boot out of space. dracut wrote no initramfs, and because kernel-install stops at the first failing plugin, 95-c630-devicetree never ran either — leaving a boot entry with neither an initrd nor a devicetree line, which on this machine can never boot. dnf reported success and nothing retried. A kernel costs ~336 MiB here: a 210 MiB hostonly=no initramfs, a 98 MiB dtb-<kver> directory carrying every board's device tree, plus vmlinuz and System.map. Three of those cannot fit 1 GiB, so /boot goes to 2 GiB and installonly_limit drops to 2. Also fixes the quieter half of the same trap. snd-soc-wsa881x lives outside the kernel package, so the speakers go silent after any kernel update with nothing in the logs to explain it. c630-wsa881x rebuilds it and 96-c630-wsa881x.install calls it on each kernel-install add — always exiting 0, since a plugin failure is precisely what caused the damage above. grub.cfg gains the next_entry one-shot block that has been carried by hand all along, so testing a kernel costs a power cycle rather than a rescue. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_011XgGF5wfxLDAybVnNz6eNQ
24 lines
960 B
Plaintext
24 lines
960 B
Plaintext
# Keep two kernels, not the stock three.
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#
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# This machine's initramfs is unusually large — hostonly is off (see
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# /etc/dracut.conf.d/10-c630.conf) so every image carries the full driver and
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# firmware set, and each installed kernel costs roughly:
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#
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# initramfs ~210 MiB
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# dtb-<kver> ~98 MiB (kernel-core ships every board's device tree)
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# vmlinuz ~17 MiB
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# System.map ~11 MiB
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# ---------------------
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# total ~336 MiB
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#
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# Three of those is ~1008 MiB, which does not fit a 1 GiB /boot. The failure is
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# nastier than a full disk: dnf installs the kernel rpm successfully, then
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# dracut dies on ENOSPC, and because kernel-install stops at the first failing
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# plugin, 95-c630-devicetree never runs either. The result is a boot entry with
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# no initrd and no devicetree — unbootable — while dnf reports success and
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# never retries.
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#
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# Two kernels is ~672 MiB, which leaves comfortable headroom.
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[main]
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installonly_limit=2
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