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f96548e165
To be used in the `go-blockdevice` library. Signed-off-by: Artem Chernyshev <artem.0xD2@gmail.com>
30 lines
727 B
Go
30 lines
727 B
Go
// This Source Code Form is subject to the terms of the Mozilla Public
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// License, v. 2.0. If a copy of the MPL was not distributed with this
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// file, You can obtain one at http://mozilla.org/MPL/2.0/.
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package pkg
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import (
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"fmt"
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"github.com/talos-systems/go-cmd/pkg/cmd"
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)
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const (
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// RAWDiskSize is the minimum size disk we can create.
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RAWDiskSize = 546
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)
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// CreateRawDisk creates a raw disk by invoking the `dd` command.
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func CreateRawDisk() (img string, err error) {
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img = "/tmp/disk.raw"
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seek := fmt.Sprintf("seek=%d", RAWDiskSize)
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if _, err = cmd.Run("dd", "if=/dev/zero", "of="+img, "bs=1M", "count=0", seek); err != nil {
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return "", fmt.Errorf("failed to create RAW disk: %w", err)
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}
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return img, nil
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}
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