Table de partitions GPT

Voir :

gdisk https://expertoracle.com/2020/01/06/nochange-partition-1-could-only-be-grown-by-1-fudge2048-error-when-extending-a-disk-partition/

Supprimer uniquement la table des partitions en conservant la MBR

Install de gdisk (GPT fdisk)

apt-get install gdisk

Suppression de la table GPT - zap GPT

sgdisk --zap /dev/sdb

Supprimer toutes les signatures

/sbin/wipefs -a -f /dev/sda

Autres

# sfdisk /dev/sda
/dev/sda /dev/sda1 /dev/sda2 /dev/sda3 /dev/sda4 /dev/sda5 /dev/sda6 /dev/sda7
# sfdisk -d /dev/sda
label: gpt
label-id: 4A520514-FBFF-49E2-93CD-024C6EE848EA
device: /dev/sda
unit: sectors
first-lba: 34
last-lba: 209715038
/dev/sda1 : start= 2048, size= 97654784, type=0FC63DAF-8483-4772-8E79-3D69D8477DE4, uuid=763DFFAB-5D82-4843-8F38-746AA9D6D2EE, name="root"
/dev/sda2 : start= 97656832, size= 39061504, type=0FC63DAF-8483-4772-8E79-3D69D8477DE4, uuid=0D3A7314-4DC6-4D63-8AD2-A5B514F9FE90, name="home"
/dev/sda3 : start= 136718336, size= 9764864, type=0FC63DAF-8483-4772-8E79-3D69D8477DE4, uuid=91287ED7-760D-405B-ABE7-C7F8FD59DF6B, name="usr"
/dev/sda4 : start= 146483200, size= 9764864, type=0FC63DAF-8483-4772-8E79-3D69D8477DE4, uuid=CA22ECC9-7839-4EE6-8F23-CC67A55D3F8A, name="var"
/dev/sda5 : start= 156248064, size= 9764864, type=0FC63DAF-8483-4772-8E79-3D69D8477DE4, uuid=6D2E0210-27B3-4979-B85B-DCBF2F63BC38, name="tmp"
/dev/sda6 : start= 166012928, size= 9764864, type=0FC63DAF-8483-4772-8E79-3D69D8477DE4, uuid=BC2EAA0E-BFF8-4311-B738-8DEC70F0DA91, name="usr/local"
/dev/sda7 : start= 175777792, size= 9764864, type=C12A7328-F81F-11D2-BA4B-00A0C93EC93B, uuid=EA73FFAD-DB9B-476B-B40F-DAF95DFF0C14, name="efi"
# gdisk -l /dev/sda
GPT fdisk (gdisk) version 1.0.3
Partition table scan:
MBR: protective
BSD: not present
APM: not present
GPT: present
Found valid GPT with protective MBR; using GPT.
Disk /dev/sda: 209715072 sectors, 100.0 GiB
Model: PERC H330 Adp
Sector size (logical/physical): 512/512 bytes
Disk identifier (GUID): 4A520514-FBFF-49E2-93CD-024C6EE848EA
Partition table holds up to 128 entries
Main partition table begins at sector 2 and ends at sector 33
First usable sector is 34, last usable sector is 209715038
Partitions will be aligned on 2048-sector boundaries
Total free space is 24174397 sectors (11.5 GiB)
Number Start (sector) End (sector) Size Code Name
1 2048 97656831 46.6 GiB 8300 root
2 97656832 136718335 18.6 GiB 8300 home
3 136718336 146483199 4.7 GiB 8300 usr
4 146483200 156248063 4.7 GiB 8300 var
5 156248064 166012927 4.7 GiB 8300 tmp
6 166012928 175777791 4.7 GiB 8300 usr/local
7 175777792 185542655 4.7 GiB EF00 efi