Make move_disk work on bare metal
* Use -S32 -H64 --force to trick sfdisk into allowing MiB-aligned partitions on a drive that reports a CHS geometry * Explicitly create partition at sector 2097152 (=1GiB) * Force mkfs.ext4 to overwrite any existing filesystem it might find * Wait up to 2 minutes for the disk to become readable (especially USB drives often show up with a delay)
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@ -10,13 +10,25 @@ mkdir -p /dev /etc
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mount -t devtmpfs none /dev &> /junk || true # no /dev/null yet
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mount -t devtmpfs none /dev &> /junk || true # no /dev/null yet
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rm /junk &> /dev/null || true
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rm /junk &> /dev/null || true
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timeout=120
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while ! dd if=/dev/${DISK} of=/dev/null bs=512 count=1; do
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sleep 1
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# shellcheck disable=SC2219
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let timeout--
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if [ "${timeout}" -le 0 ]; then
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echo "Timeout reached for disk to become accessible"
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false
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fi
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done
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# Create partition if it doesn't exist
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# Create partition if it doesn't exist
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if [ $(($(stat -c "%Lr" "/dev/${DISK}") % 8)) -eq 0 ]; then
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if [ $(($(stat -c "%Lr" "/dev/${DISK}") % 8)) -eq 0 ]; then
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echo "Creating partition table..."
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echo "Creating partition table..."
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echo ";" | sfdisk "/dev/${DISK}"
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# Start at 1GiB, use -S32 -H64 to align to MiB rather than cylinder boundary
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echo "2097152;" | sfdisk -uS -S32 -H64 --force "/dev/${DISK}"
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fdisk -l "/dev/${DISK}"
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fdisk -l "/dev/${DISK}"
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echo "Creating ext4 partition..."
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echo "Creating ext4 partition..."
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mkfs.ext4 "/dev/${DISK}1"
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mkfs.ext4 -F -F "/dev/${DISK}1"
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DISK="${DISK}1"
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DISK="${DISK}1"
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fi
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fi
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