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f448cb4f3c
With system extensions, size of the `initramfs` might increase significantly. With 1000 MiB `/boot`, as we store `A` and `B` boot directories, we have 500 MiB for each Talos boot (size of the kernel and initramfs). Fixes #5096 Signed-off-by: Andrey Smirnov <andrey.smirnov@talos-systems.com>
30 lines
728 B
Go
30 lines
728 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 = 1246
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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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