Repartitionnement disque VPS suite à un upgrade

Bonjour,
J'ai suivi la documentation OVH "https://docs.ovh.com/fr/vps/repartitionner-vps-suite-upgrade/" afin de repartitionner le VPS suite à l'upgrade mais il semble que la capacité du disque est toujours la même.
Voici les différentes étapes effectuées :

root@rescue:~# umount /dev/sda1
umount: /dev/sda1: not mounted
root@rescue:~# fsck -n /dev/sda1
fsck from util-linux 2.20.1
e2fsck 1.42.5 (29-Jul-2012)
/: clean, 826354/3145728 files, 9590479/12581888 blocks
root@rescue:~# fdisk /dev/sda

Command (m for help): p

Disk /dev/sda: 107.4 GB, 107374182400 bytes
255 heads, 63 sectors/track, 13054 cylinders, total 209715200 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00072cd0

Device Boot Start End Blocks Id System
/dev/sda1 * 4096 100659199 50327552 83 Linux
/dev/sda2 100659200 104857599 2099200 82 Linux swap / Solaris

Command (m for help): d
Partition number (1-4): 1

Command (m for help): n
Partition type:
p primary (1 primary, 0 extended, 3 free)
e extended
Select (default p): p
Partition number (1-4, default 1): 1
First sector (2048-209715199, default 2048): 4096
Last sector, +sectors or +size{K,M,G} (4096-100659199, default 100659199):
Using default value 100659199

Command (m for help): p

Disk /dev/sda: 107.4 GB, 107374182400 bytes
255 heads, 63 sectors/track, 13054 cylinders, total 209715200 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00072cd0

Device Boot Start End Blocks Id System
/dev/sda1 4096 100659199 50327552 83 Linux
/dev/sda2 100659200 104857599 2099200 82 Linux swap / Solaris

Command (m for help): a
Partition number (1-4): 1

Command (m for help): w
The partition table has been altered!

Calling ioctl() to re-read partition table.
Syncing disks.
root@rescue:~# reboot
root@rescue:~# e2fsck -f /dev/sda1
e2fsck 1.42.5 (29-Jul-2012)
Pass 1: Checking inodes, blocks, and sizes
Pass 2: Checking directory structure
Pass 3: Checking directory connectivity
Pass 4: Checking reference counts
Pass 5: Checking group summary information
/: 826354/3145728 files (8.8% non-contiguous), 9557678/12581888 blocks
root@rescue:~# resize2fs /dev/sda1
resize2fs 1.42.5 (29-Jul-2012)
The filesystem is already 12581888 blocks long. Nothing to do!
# fdisk -l

Disque /dev/sda: 107.4 Go, 107374182400 octets
255 têtes, 63 secteurs/piste, 13054 cylindres
Unités = cylindres de 16065 * 512 = 8225280 octets
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Identifiant de disque : 0x00072cd0

Périphérique Amorce Début Fin Blocs Id Système
/dev/sda1 * 1 6266 50327552 83 Linux
La partition 1 ne se termine pas sur une frontière de cylindre.
/dev/sda2 6266 6528 2099200 82 Linux swap / Solaris
[root@XXXXX~]# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sr0 11:0 1 1024M 0 rom
sda 8:0 0 100G 0 disk
├─sda1 8:1 0 48G 0 part /
└─sda2 8:2 0 2G 0 part [SWAP]
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Après un redémarrage normal la taille du disque est la même.
En vous remerciant d'avance de votre aide