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96aa9638f7
There's a cyclic dependency on siderolink library which imports talos machinery back. We will fix that after we get talos pushed under a new name. Signed-off-by: Andrey Smirnov <andrey.smirnov@talos-systems.com>
83 lines
2.0 KiB
Go
83 lines
2.0 KiB
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 install
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import (
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"errors"
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"fmt"
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"github.com/siderolabs/go-blockdevice/blockdevice"
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"github.com/siderolabs/go-blockdevice/blockdevice/filesystem"
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"github.com/siderolabs/talos/pkg/machinery/constants"
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)
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// VerifyEphemeralPartition verifies the supplied data device options.
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func VerifyEphemeralPartition(opts *Options) (err error) {
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if opts.Disk == "" {
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return errors.New("missing disk")
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}
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if opts.Force {
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return nil
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}
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if err = VerifyDiskAvailability(opts.Disk, constants.EphemeralPartitionLabel); err != nil {
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return fmt.Errorf("failed to verify disk availability: %w", err)
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}
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return nil
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}
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// VerifyBootPartition verifies the supplied boot device options.
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func VerifyBootPartition(opts *Options) (err error) {
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if opts.Bootloader {
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return nil
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}
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if opts.Force {
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return nil
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}
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if err = VerifyDiskAvailability(opts.Disk, constants.BootPartitionLabel); err != nil {
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return fmt.Errorf("failed to verify disk availability: %w", err)
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}
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return nil
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}
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// VerifyDiskAvailability verifies that no filesystems currently exist with
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// the labels used by the OS.
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func VerifyDiskAvailability(devpath, label string) (err error) {
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var dev *blockdevice.BlockDevice
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if dev, err = blockdevice.Open(devpath); err != nil {
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// We return here because we only care if we can discover the
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// device successfully and confirm that the disk is not in use.
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// TODO(andrewrynhard): We should return a custom error type here
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// that we can use to confirm the device was not found.
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return nil
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}
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//nolint:errcheck
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defer dev.Close()
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part, err := dev.GetPartition(label)
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if err != nil {
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return err
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}
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fsType, err := part.Filesystem()
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if err != nil {
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return err
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}
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if fsType != filesystem.Unknown {
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return fmt.Errorf("target install device %s is not empty, found existing %s file system", label, fsType)
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}
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return nil
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}
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