mirror of
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>
82 lines
1.9 KiB
Go
82 lines
1.9 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 main
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import (
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"log"
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"time"
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"github.com/pkg/errors"
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"github.com/talos-systems/talos/internal/pkg/constants"
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"github.com/talos-systems/talos/internal/pkg/kmsg"
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"github.com/talos-systems/talos/internal/pkg/mount/manager"
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"github.com/talos-systems/talos/internal/pkg/mount/manager/squashfs"
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"github.com/talos-systems/talos/internal/pkg/mount/manager/virtual"
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"github.com/talos-systems/talos/internal/pkg/mount/switchroot"
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"golang.org/x/sys/unix"
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)
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// nolint: gocyclo
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func run() (err error) {
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// Mount the virtual devices.
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mountpoints, err := virtual.MountPoints()
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if err != nil {
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return err
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}
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virtual := manager.NewManager(mountpoints)
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if err = virtual.MountAll(); err != nil {
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return err
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}
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// Setup logging to /dev/kmsg.
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_, err = kmsg.Setup("[talos] [initramfs]")
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if err != nil {
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return err
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}
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// Mount the rootfs.
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log.Println("mounting the rootfs")
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mountpoints, err = squashfs.MountPoints(constants.NewRoot)
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if err != nil {
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return err
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}
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squashfs := manager.NewManager(mountpoints)
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if err = squashfs.MountAll(); err != nil {
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return err
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}
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// Switch into the new rootfs.
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log.Println("entering the rootfs")
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if err = switchroot.Switch(constants.NewRoot, virtual); err != nil {
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return err
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}
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return nil
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}
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func recovery() {
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if r := recover(); r != nil {
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log.Printf("recovered from: %+v\n", r)
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for i := 10; i >= 0; i-- {
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log.Printf("rebooting in %d seconds\n", i)
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time.Sleep(1 * time.Second)
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}
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}
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// nolint: errcheck
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unix.Reboot(unix.LINUX_REBOOT_CMD_RESTART)
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}
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func main() {
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defer recovery()
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if err := run(); err != nil {
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panic(errors.Wrap(err, "early boot failed"))
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}
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// We should never reach this point if things are working as intended.
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panic(errors.New("unknown error"))
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}
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