mirror of
https://github.com/linka-cloud/d2vm.git
synced 2024-11-25 09:06:24 +00:00
94 lines
2.2 KiB
Go
94 lines
2.2 KiB
Go
// Copyright 2023 Linka Cloud All rights reserved.
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
package d2vm
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
"os"
|
|
"path/filepath"
|
|
|
|
"github.com/sirupsen/logrus"
|
|
|
|
"go.linka.cloud/d2vm/pkg/exec"
|
|
)
|
|
|
|
const syslinuxCfg = `DEFAULT linux
|
|
SAY Now booting the kernel from SYSLINUX...
|
|
LABEL linux
|
|
KERNEL %s
|
|
APPEND %s
|
|
`
|
|
|
|
var mbrPaths = []string{
|
|
// debian path
|
|
"/usr/lib/syslinux/mbr/mbr.bin",
|
|
// ubuntu path
|
|
"/usr/lib/EXTLINUX/mbr.bin",
|
|
// alpine path
|
|
"/usr/share/syslinux/mbr.bin",
|
|
// centos path
|
|
"/usr/share/syslinux/mbr.bin",
|
|
// archlinux path
|
|
"/usr/lib/syslinux/bios/mbr.bin",
|
|
}
|
|
|
|
type syslinux struct {
|
|
c Config
|
|
mbrBin string
|
|
}
|
|
|
|
func (s syslinux) Setup(ctx context.Context, dev, root string, cmdline string) error {
|
|
logrus.Infof("setting up syslinux bootloader")
|
|
if err := exec.Run(ctx, "extlinux", "--install", filepath.Join(root, "boot")); err != nil {
|
|
return err
|
|
}
|
|
if err := os.WriteFile(filepath.Join(root, "boot", "syslinux.cfg"), []byte(fmt.Sprintf(syslinuxCfg, s.c.Kernel, cmdline)), perm); err != nil {
|
|
return err
|
|
}
|
|
logrus.Infof("writing MBR")
|
|
if err := exec.Run(ctx, "dd", fmt.Sprintf("if=%s", s.mbrBin), fmt.Sprintf("of=%s", dev), "bs=440", "count=1", "conv=notrunc"); err != nil {
|
|
return err
|
|
}
|
|
return nil
|
|
}
|
|
|
|
type syslinuxProvider struct{}
|
|
|
|
func (s syslinuxProvider) New(c Config, _ OSRelease) (Bootloader, error) {
|
|
mbrBin := ""
|
|
for _, v := range mbrPaths {
|
|
if _, err := os.Stat(v); err == nil {
|
|
mbrBin = v
|
|
break
|
|
}
|
|
}
|
|
if mbrBin == "" {
|
|
return nil, fmt.Errorf("unable to find syslinux's mbr.bin path")
|
|
}
|
|
return &syslinux{
|
|
c: c,
|
|
mbrBin: mbrBin,
|
|
}, nil
|
|
}
|
|
|
|
func (s syslinuxProvider) Name() string {
|
|
return "syslinux"
|
|
}
|
|
|
|
func init() {
|
|
RegisterBootloaderProvider(syslinuxProvider{})
|
|
}
|