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This article introduces the knowledge about "primary label corruption; how to fix using backup failure in linux". In the actual case operation process, many people will encounter such difficulties. Next, let Xiaobian lead you to learn how to deal with these situations! I hope you can read carefully and learn something!

Fault information:

Apr 22 11:00:51 host1 cmlb: [ID 107833 kern.warning] WARNING: /scsi_vhci/disk@g5000c50043ffa61f (sd5):

Apr 22 11:00:51 host1 primary label corrupt; using backup

Apr 22 11:00:51 host1 cmlb: [ID 107833 kern.warning] WARNING: /scsi_vhci/disk@g5000c50043ffa61f (sd5):

Apr 22 11:00:51 host1 primary label corrupt; using backup

Apr 22 11:00:58 host1 cmlb: [ID 107833 kern.warning] WARNING: /scsi_vhci/disk@g5000c50043ffa61f (sd5):

Apr 22 11:00:58 host1 primary label corrupt; using backup

Apr 22 11:00:58 host1 cmlb: [ID 107833 kern.warning] WARNING: /scsi_vhci/disk@g5000c50043ffa61f (sd5):

Apr 22 11:00:58 host1 primary label corrupt; using backup

Apr 22 11:00:58 host1 cmlb: [ID 107833 kern.warning] WARNING: /scsi_vhci/disk@g5000c50043ffa61f (sd5):

Apr 22 11:00:58 host1 primary label corrupt; using backup

Apr 22 11:00:58 host1 cmlb: [ID 107833 kern.warning] WARNING: /scsi_vhci/disk@g5000c50043ffa61f (sd5):

Apr 22 11:00:58 host1 primary label corrupt; using backup

Solution:

If step 1 fails to repair, perform step 2 to repair:

root@host1:/tank/test# format

Searching for disks... done

AVAILABLE DISK SELECTIONS:

0. c0d0

/pci@0,0/pci-ide@1f,2/ide@0/cmdk@0,0

1. c3t5000C5000B74F2DBd0

/scsi_vhci/disk@g5000c5000b74f2db

2. c3t5000C50010B03872d0

/scsi_vhci/disk@g5000c50010b03872

3. c3t5000C50043FF9AB7d0

/scsi_vhci/disk@g5000c50043ff9ab7

4. c3t5000C50043FFA61Fd0

/scsi_vhci/disk@g5000c50043ffa61f

5. c3t5000C5004700B33Fd0

/scsi_vhci/disk@g5000c5004700b33f

6. c3t5000C500470098D7d0

/scsi_vhci/disk@g5000c500470098d7

Specify disk (enter its number): 4

selecting c3t5000C50043FFA61Fd0

[disk formatted]

/dev/dsk/c3t5000C50043FFA61Fd0s0 is part of active ZFS pool tank. Please see zpool(1M).

Reading the primary EFI GPT label failed. Using backup label.

Use the 'backup' command to restore the primary label.

No Solaris fdisk partition found.

FORMAT MENU:

disk - select a disk

type - select (define) a disk type

partition - select (define) a partition table

current - describe the current disk

format - format and analyze the disk

fdisk - run the fdisk program

repair - repair a defective sector

label - write label to the disk

analyze - surface analysis

defect - defect list management

backup - search for backup labels

verify - read and display labels

inquiry - show vendor, product and revision

volname - set 8-character volume name

! - execute , then return

quit

format> verify

Reading the primary EFI GPT label failed. Using backup label.

Use the 'backup' command to restore the primary label.

Volume name =

ascii name =

bytes/sector = 512

sectors = 585937499

accessible sectors = 585937466

Part Tag Flag First Sector Size Last Sector

0 usr wm 256 279.39GB 585921082

1 unassigned wm 0 0 0

2 unassigned wm 0 0 0

3 unassigned wm 0 0 0

4 unassigned wm 0 0 0

5 unassigned wm 0 0 0

6 unassigned wm 0 0 0

8 reserved wm 585921083 8.00MB 585937466

format> backup

Restoring primary label.

Unable to get information for EFI partition 0.

Cannot label disk when partitions are in use as described.

Failed

format> type

AVAILABLE DRIVE TYPES:

0. Auto configure

1. other

Specify disk type (enter its number)[1]: 0

c3t5000C50043FFA61Fd0: configured with capacity of 279.40GB

selecting c3t5000C50043FFA61Fd0

[disk formatted]

/dev/dsk/c3t5000C50043FFA61Fd0s0 is part of active ZFS pool tank. Please see zpool(1M).

format> verify

Volume name =

ascii name =

bytes/sector = 512

sectors = 585937499

accessible sectors = 585937466

Part Tag Flag First Sector Size Last Sector

0 usr wm 256 279.39GB 585921082

1 unassigned wm 0 0 0

2 unassigned wm 0 0 0

3 unassigned wm 0 0 0

4 unassigned wm 0 0 0

5 unassigned wm 0 0 0

6 unassigned wm 0 0 0

8 reserved wm 585921083 8.00MB 585937466

format> backup

Disk has a primary label, still continue? y

Restoring primary label.

Unable to get information for EFI partition 0.

Cannot label disk when partitions are in use as described.

Failed

Step 2:

format> fdisk

No fdisk table exists. The default partition for the disk is:

a 100% "SOLARIS System" partition

Type "y" to accept the default partition, otherwise type "n" to edit the

partition table.

y

format> verify

Reading the primary EFI GPT label failed. Using backup label.

Use the 'backup' command to restore the primary label.

Volume name =

ascii name =

bytes/sector = 512

sectors = 585937499

accessible sectors = 585937466

Part Tag Flag First Sector Size Last Sector

0 usr wm 256 279.39GB 585921082

1 unassigned wm 0 0 0

2 unassigned wm 0 0 0

3 unassigned wm 0 0 0

4 unassigned wm 0 0 0

5 unassigned wm 0 0 0

6 unassigned wm 0 0 0

8 reserved wm 585921083 8.00MB 585937466

format> backup

Restoring primary label.

format> q

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