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018086d1fa
Library `blockdevice` was extracted as `talos-systems/go-blockdevice`, this PR finalizes the move by removing Talos copy of it. Some functions around `mkfs`/`growfs` were extracted as `makefs` package, as they depend on `cmd` package. Signed-off-by: Andrey Smirnov <smirnov.andrey@gmail.com>
99 lines
2.9 KiB
Go
99 lines
2.9 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 mount
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import (
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"fmt"
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"log"
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"golang.org/x/sys/unix"
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"github.com/talos-systems/go-blockdevice/blockdevice/probe"
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"github.com/talos-systems/talos/pkg/machinery/constants"
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)
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// SystemMountPointsForDevice returns the mountpoints required to boot the system.
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// This function is called exclusively during installations ( both image
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// creation and bare metall installs ). This is why we want to look up
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// device by specified disk as well as why we don't want to grow any
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// filesystems.
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func SystemMountPointsForDevice(devpath string) (mountpoints *Points, err error) {
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mountpoints = NewMountPoints()
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for _, name := range []string{constants.EphemeralPartitionLabel, constants.BootPartitionLabel, constants.EFIPartitionLabel, constants.StatePartitionLabel} {
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var target string
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switch name {
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case constants.EphemeralPartitionLabel:
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target = constants.EphemeralMountPoint
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case constants.BootPartitionLabel:
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target = constants.BootMountPoint
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case constants.EFIPartitionLabel:
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target = constants.EFIMountPoint
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case constants.StatePartitionLabel:
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target = constants.StateMountPoint
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}
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var dev *probe.ProbedBlockDevice
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if dev, err = probe.DevForFileSystemLabel(devpath, name); err != nil {
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if name == constants.BootPartitionLabel {
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// A bootloader is not always required.
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log.Println("WARNING: no boot partition was found")
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continue
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}
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return nil, fmt.Errorf("probe device for filesystem %s: %w", name, err)
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}
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// nolint: errcheck
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defer dev.Close()
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mountpoint := NewMountPoint(dev.Path, target, dev.SuperBlock.Type(), unix.MS_NOATIME, "")
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mountpoints.Set(name, mountpoint)
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}
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return mountpoints, nil
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}
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// SystemMountPointForLabel returns a mount point for the specified device and label.
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func SystemMountPointForLabel(label string, opts ...Option) (mountpoint *Point, err error) {
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var target string
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switch label {
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case constants.EphemeralPartitionLabel:
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target = constants.EphemeralMountPoint
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opts = append(opts, WithResize(true))
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case constants.BootPartitionLabel:
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target = constants.BootMountPoint
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case constants.EFIPartitionLabel:
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target = constants.EFIMountPoint
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case constants.StatePartitionLabel:
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target = constants.StateMountPoint
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default:
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return nil, fmt.Errorf("unknown label: %q", label)
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}
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var dev *probe.ProbedBlockDevice
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if dev, err = probe.GetDevWithFileSystemLabel(label); err != nil {
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// A boot partitition is not required.
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if label == constants.BootPartitionLabel {
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return nil, nil
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}
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return nil, fmt.Errorf("failed to find device with label %s: %w", label, err)
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}
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// nolint: errcheck
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defer dev.Close()
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mountpoint = NewMountPoint(dev.Path, target, dev.SuperBlock.Type(), unix.MS_NOATIME, "", opts...)
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return mountpoint, nil
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}
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