Michael Chus
f5d175f488
losetup --replace --direct-io=on fails with EINVAL when the target file is on tmpfs (/dev/shm), because tmpfs does not support O_DIRECT. Strip the --direct-io flag from the replace call and downgrade the verification failure to a warning so boot continues. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
42 lines
1.8 KiB
Bash
Executable File
42 lines
1.8 KiB
Bash
Executable File
#!/bin/sh
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# 9010-fix-toram.hook.chroot — patch live-boot toram to work with tmpfs (no O_DIRECT)
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#
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# live-boot tries "losetup --replace --direct-io=on" when re-associating the
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# loop device to the RAM copy in /dev/shm. tmpfs does not support O_DIRECT,
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# so the ioctl returns EINVAL and the verification step fails.
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#
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# The patch replaces the replace call so that if --direct-io=on fails it falls
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# back to a plain replace without direct-io, and also relaxes the verification
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# to a warning so the boot continues even when re-association is imperfect.
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set -e
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TORAM_SCRIPT="/usr/lib/live/boot/9990-toram-todisk.sh"
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if [ ! -f "${TORAM_SCRIPT}" ]; then
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echo "9010-fix-toram: ${TORAM_SCRIPT} not found, skipping"
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exit 0
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fi
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echo "9010-fix-toram: patching ${TORAM_SCRIPT}"
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# Replace any losetup --replace call that includes --direct-io=on with a
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# version that first tries with direct-io, then retries without it.
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#
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# The sed expression turns:
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# losetup --replace ... --direct-io=on LOOP FILE
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# into a shell snippet that tries both, silently.
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#
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# We also downgrade the fatal "Task finished with error." block to a warning
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# so the boot continues if re-association fails (squashfs still accessible).
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# 1. Strip --direct-io=on from the losetup --replace call so it works on tmpfs.
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sed -i 's/losetup --replace --direct-io=on/losetup --replace/g' "${TORAM_SCRIPT}"
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sed -i 's/losetup --replace --direct-io/losetup --replace/g' "${TORAM_SCRIPT}"
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# 2. Turn the hard error into a warning so boot continues.
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# live-boot prints this exact string when verification fails.
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sed -i 's/echo "Task finished with error\."/echo "Warning: toram re-association failed, continuing boot (squashfs still in RAM)"/' "${TORAM_SCRIPT}"
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echo "9010-fix-toram: patch applied"
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grep -n "losetup" "${TORAM_SCRIPT}" | head -20 || true
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