mirror of
https://github.com/mulgadc/spinifex.git
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Ben Duncan
46 lines
1.6 KiB
Bash
46 lines
1.6 KiB
Bash
#!/bin/bash
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# Diversion wrapper for grub-install on a spinifex-boot-tool system.
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#
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# On ZFS root the bootloader lives on per-disk ESPs, not in /boot. A plain
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# grub-install writes a core image that tries to read the pool, which works
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# until the next OpenZFS feature flag lands and then silently does not. Worse,
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# the grub-pc and shim packages run grub-install from their own postinst, so an
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# ordinary `apt upgrade` would undo the layout with no visible error.
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#
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# Mirrors the wrapper Proxmox ships for the same reason.
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set -e
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REAL="/usr/sbin/grub-install.real"
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TOOL="/usr/sbin/spinifex-boot-tool"
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# Not a managed system: behave exactly as the real grub-install.
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if ! "$TOOL" status --quiet 2>/dev/null; then
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exec "$REAL" "$@"
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fi
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# dpkg sets this when a maintainer script is running. The bootloader packages
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# reinstalling themselves is expected and is redirected, not refused.
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case "${DPKG_MAINTSCRIPT_PACKAGE:-}" in
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grub-* | shim-*)
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echo "This system is managed by spinifex-boot-tool; redirecting grub-install to 'spinifex-boot-tool reinit'." >&2
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exec "$TOOL" reinit
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;;
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esac
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cat >&2 <<EOF
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E: This system's bootloader is managed by spinifex-boot-tool.
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Running grub-install directly would install GRUB somewhere the firmware does
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not read, and would leave the per-disk ESPs holding a stale kernel.
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Use instead:
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spinifex-boot-tool refresh re-sync kernels and grub.cfg to every ESP
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spinifex-boot-tool reinit reinstall GRUB on every ESP
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spinifex-boot-tool status list the ESPs under management
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To run the real grub-install anyway (you probably do not want this):
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$REAL $*
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EOF
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exit 1
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