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74116204ce
fresh drive setups when one of the drive is a root drive, we should ignore such a root drive and not proceed to format. This PR handles this properly by marking the disks which are root disk and they are taken offline.
63 lines
1.7 KiB
Go
63 lines
1.7 KiB
Go
// +build !windows
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/*
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* MinIO Cloud Storage, (C) 2019 MinIO, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*/
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package disk
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import (
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"os"
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"syscall"
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)
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// IsRootDisk returns if diskPath belongs to root-disk, i.e the disk mounted at "/"
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func IsRootDisk(diskPath string) (bool, error) {
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rootDisk := false
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diskInfo, err := os.Stat(diskPath)
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if err != nil {
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return false, err
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}
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rootHostsInfo, err := os.Stat("/etc/hosts")
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if err != nil {
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return false, err
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}
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rootInfo, err := os.Stat("/")
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if err != nil {
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return false, err
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}
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diskStat, diskStatOK := diskInfo.Sys().(*syscall.Stat_t)
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rootHostsStat, rootHostsStatOK := rootHostsInfo.Sys().(*syscall.Stat_t)
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rootStat, rootStatOK := rootInfo.Sys().(*syscall.Stat_t)
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if diskStatOK && rootHostsStatOK {
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if diskStat.Dev == rootHostsStat.Dev {
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// Indicate if the disk path is on root disk. This is used to indicate the healing
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// process not to format the drive and end up healing it.
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rootDisk = true
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}
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}
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if !rootDisk {
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if diskStatOK && rootStatOK {
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if diskStat.Dev == rootStat.Dev {
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// Indicate if the disk path is on root disk. This is used to indicate the healing
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// process not to format the drive and end up healing it.
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rootDisk = true
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}
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}
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}
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return rootDisk, nil
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}
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