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  #1  
Old 7th May 2017, 10:35 AM
xia4q Offline
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Location: Bern
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linuxfedorafirefox
Backup GPT Table Corrupt

fc25 - Gnome

I have had to shut down my computer hard the last several times, because the palmrest containing the touchpad has been malfunctioning, so I couldn't shut down the normal way. Then when I launched gparted I got the following message:

Code:
Libparted Error

The backup GPT table is corrupt; but the primay appears Ok; so that's what will be used.
This also caused problems, when cloning.

Is there anyway to regenerate the backup GPT table?

Thanks
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  #2  
Old 7th May 2017, 03:38 PM
PabloTwo Offline
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linuxchrome
Re: Backup GPT Table Corrupt

Quote:
Is there anyway to regenerate the backup GPT table?
Apparently there is. Answer was easily and quickly found with a google search.
Code:
https://askubuntu.com/questions/386752/fixing-corrupt-backup-gpt-table
The above link is just one of many providing the solution.
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  #3  
Old 7th May 2017, 11:35 PM
eldiener Offline
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Posts: 122
windows_98_nt_2000firefox
Re: Backup GPT Table Corrupt

Quote:
Originally Posted by xia4q View Post
fc25 - Gnome

I have had to shut down my computer hard the last several times, because the palmrest containing the touchpad has been malfunctioning, so I couldn't shut down the normal way. Then when I launched gparted I got the following message:

Code:
Libparted Error

The backup GPT table is corrupt; but the primay appears Ok; so that's what will be used.
This also caused problems, when cloning.

Is there anyway to regenerate the backup GPT table?

Thanks
Use gdisk to fix the backup GPT table. Read the instructions and you will be able to get gdisk to recreate the backup GPT table from the primary GPT table.

A partition editor called Minitools that I used in the past consistently had a bug, which was never fixed, of updating the normal GPT table but corrupting the backup GPT table whenever changes were made to a GPT drive. I had to use gdisk to straighten out this problem. Now I no longer use Minitools as GParted is finally good enough ( if still very slow ) in dealing with NTFS partitions.
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  #4  
Old 11th May 2017, 11:02 AM
xia4q Offline
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Join Date: Apr 2017
Location: Bern
Posts: 13
linuxfedorafirefox
Re: Backup GPT Table Corrupt

Quote:
Originally Posted by PabloTwo View Post
Apparently there is. Answer was easily and quickly found with a google search.
Code:
https://askubuntu.com/questions/386752/fixing-corrupt-backup-gpt-table
The above link is just one of many providing the solution.
I followed the instructions in the thread, using the p and w switches; but I still have the same problem.

I did convert from mbr, however.
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  #5  
Old 17th May 2017, 04:22 AM
xia4q Offline
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Join Date: Apr 2017
Location: Bern
Posts: 13
linuxfedorafirefox
Re: Backup GPT Table Corrupt

gdisk with the v switch renders:

[sophie@localhost ~]$ su
Password:
[root@localhost sophie]# gdisk
GPT fdisk (gdisk) version 1.0.1

Type device filename, or press <Enter> to exit: /dev/sda
Caution: invalid backup GPT header, but valid main header; regenerating
backup header from main header.

Partition table scan:
MBR: protective
BSD: not present
APM: not present
GPT: damaged

************************************************** **************************
Caution: Found protective or hybrid MBR and corrupt GPT. Using GPT, but disk
verification and recovery are STRONGLY recommended.
************************************************** **************************

Command (? for help): v

Caution: Partition 3 doesn't begin on a 8-sector boundary. This may
result in degraded performance on some modern (2009 and later) hard disks.

Caution: Partition 4 doesn't begin on a 8-sector boundary. This may
result in degraded performance on some modern (2009 and later) hard disks.

Consult http://www.ibm.com/developerworks/li...-sector-disks/
for information on disk alignment.

No problems found. 2014 free sectors (1007.0 KiB) available in 1
segments, the largest of which is 2014 (1007.0 KiB) in size.

Command (? for help):
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