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https://github.com/siderolabs/talos.git
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ca35b85300
This change aims to make installations more unified and reliable. It introduces the concept of a mountpoint manager that is capable of mounting, unmounting, and moving a set of mountpoints in the correct order. Signed-off-by: Andrew Rynhard <andrew@andrewrynhard.com>
84 lines
2.5 KiB
Go
84 lines
2.5 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 installer
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import (
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"github.com/pkg/errors"
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"github.com/talos-systems/talos/internal/pkg/blockdevice/probe"
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"github.com/talos-systems/talos/internal/pkg/constants"
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"github.com/talos-systems/talos/pkg/userdata"
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)
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// VerifyDataDevice verifies the supplied data device options.
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func VerifyDataDevice(data *userdata.UserData) (err error) {
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// Set data device to root device if not specified
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if data.Install.Data == nil {
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data.Install.Data = &userdata.InstallDevice{}
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}
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if data.Install.Data.Device == "" {
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return errors.New("a data device is required")
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}
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if !data.Install.Force {
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if err = VerifyDiskAvailability(constants.DataPartitionLabel); err != nil {
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return errors.Wrap(err, "failed to verify disk availability")
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}
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}
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return nil
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}
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// VerifyBootDevice verifies the supplied boot device options.
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func VerifyBootDevice(data *userdata.UserData) (err error) {
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if data.Install.Boot == nil {
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return nil
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}
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if data.Install.Boot.Device == "" {
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// We can safely assume data device is defined at this point
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// because VerifyDataDevice should have been called first in
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// in the chain
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data.Install.Boot.Device = data.Install.Data.Device
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}
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if data.Install.Boot.Size == 0 {
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data.Install.Boot.Size = DefaultSizeBootDevice
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}
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if data.Install.Boot.Kernel == "" {
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data.Install.Boot.Kernel = DefaultKernelURL
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}
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if data.Install.Boot.Initramfs == "" {
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data.Install.Boot.Initramfs = DefaultInitramfsURL
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}
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if !data.Install.Force {
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if err = VerifyDiskAvailability(constants.BootPartitionLabel); err != nil {
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return errors.Wrap(err, "failed to verify disk availability")
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}
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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(label string) (err error) {
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var dev *probe.ProbedBlockDevice
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if dev, err = probe.GetDevWithFileSystemLabel(label); 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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if dev.SuperBlock != nil {
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return errors.Errorf("target install device %s is not empty, found existing %s file system", label, dev.SuperBlock.Type())
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}
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return nil
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}
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