grub

Documentation

Index

• Constants
• type BootEntry
• type Cfg
• type Grub
  • func (g *Grub) Default(label string) (err error)
  • func (g *Grub) GetCurrentEntry() (*BootEntry, error)
  • func (g *Grub) Install(fallback string, config interface{}, sequence runtime.Sequence) (err error)
  • func (g *Grub) Labels() (current, next string, err error)
• type Label

Constants

const (
	// BootA is a bootloader label.
	BootA = "A"

	// BootB is a bootloader label.
	BootB = "B"

	// GrubConfig is the path to the grub config.
	GrubConfig = constants.BootMountPoint + "/grub/grub.cfg"

	// GrubDeviceMap is the path to the grub device map.
	GrubDeviceMap = constants.BootMountPoint + "/grub/device.map"
)

Types

type BootEntry

type BootEntry struct {
	// Paths to kernel and initramfs image.
	Linux, Initrd string
	// Cmdline for the kernel.
	Cmdline string
}

BootEntry describes GRUB boot entry.

type Cfg

type Cfg struct {
	Default  string
	Fallback string
	Labels   []*Label
}

Cfg reprsents the cfg file.

type Grub

type Grub struct {
	BootDisk string
	Arch     string
}

Grub represents the grub bootloader.

func (*Grub) Default

func (g *Grub) Default(label string) (err error)

Default implements the bootloader interface.

func (*Grub) GetCurrentEntry

func (g *Grub) GetCurrentEntry() (*BootEntry, error)

GetCurrentEntry fetches current boot entry, vmlinuz/initrd path, boot args.

func (*Grub) Install

func (g *Grub) Install(fallback string, config interface{}, sequence runtime.Sequence) (err error)

Install implements the Bootloader interface. It sets up grub with the specified kernel parameters.

func (*Grub) Labels

func (g *Grub) Labels() (current, next string, err error)

Labels implements the Bootloader interface.

type Label

type Label struct {
	Root   string
	Kernel string
	Initrd string
	Append string
}

Label reprsents a label in the cfg file.