Editando Extender disco virtual (sección)

=== Recrear la partición LVM (sin perder datos) === 

⚠️ **Importante**  
Solo eliminar y recrear la partición **siempre usando el mismo sector inicial**.

Entrar en <code>fdisk</code>:

<syntaxhighlight lang="bash">
fdisk /dev/sda
</syntaxhighlight>

Pasos dentro de <code>fdisk</code>:

* <code>p</code> → Mostrar particiones
* <code>d</code> → Eliminar partición LVM (ej. <code>sda3</code>)
* <code>n</code> → Crear nueva partición primaria
* Usar el **mismo sector inicial**
* Usar todo el espacio disponible
* <code>t</code> → Cambiar tipo a <code>8e (Linux LVM)</code>
* <code>w</code> → Guardar cambios

Pasos detallados:
<syntaxhighlight lang="bash">

[root@serverA ~]# fdisk /dev/sda
Welcome to fdisk (util-linux 2.23.2).

Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.
</syntaxhighlight>

<syntaxhighlight lang="bash">
Command (m for help): p

Disk /dev/sda: 429.5 GB, 429496729600 bytes, 838860800 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 label type: dos
Disk identifier: 0x000659b7

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *        2048     2099199     1048576   83  Linux
/dev/sda2         2099200     2623487      262144    6  FAT16
/dev/sda3         2623488   209715199   103545856   8e  Linux LVM
</syntaxhighlight>

<syntaxhighlight lang="bash">
Command (m for help): d
Partition number (1-3, default 3): 3
Partition 3 is deleted
</syntaxhighlight>

<syntaxhighlight lang="bash">
Command (m for help): p

Disk /dev/sda: 429.5 GB, 429496729600 bytes, 838860800 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 label type: dos
Disk identifier: 0x000659b7

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *        2048     2099199     1048576   83  Linux
/dev/sda2         2099200     2623487      262144    6  FAT16
</syntaxhighlight>

<syntaxhighlight lang="bash">
Command (m for help): n
Partition type:
   p   primary (2 primary, 0 extended, 2 free)
   e   extended
Select (default p): p
Partition number (3,4, default 3):
First sector (2623488-838860799, default 2623488):
Using default value 2623488
Last sector, +sectors or +size{K,M,G} (2623488-838860799, default 838860799):
Using default value 838860799
Partition 3 of type Linux and of size 398.8 GiB is set
</syntaxhighlight>

<syntaxhighlight lang="bash">
Command (m for help): p

Disk /dev/sda: 429.5 GB, 429496729600 bytes, 838860800 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 label type: dos
Disk identifier: 0x000659b7

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *        2048     2099199     1048576   83  Linux
/dev/sda2         2099200     2623487      262144    6  FAT16
/dev/sda3         2623488   838860799   418118656   83  Linux
</syntaxhighlight>

<syntaxhighlight lang="bash">
Command (m for help): t
Partition number (1-3, default 3):
Hex code (type L to list all codes): 8e
Changed type of partition 'Linux' to 'Linux LVM'
</syntaxhighlight>

<syntaxhighlight lang="bash">
Command (m for help): p

Disk /dev/sda: 429.5 GB, 429496729600 bytes, 838860800 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 label type: dos
Disk identifier: 0x000659b7

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *        2048     2099199     1048576   83  Linux
/dev/sda2         2099200     2623487      262144    6  FAT16
/dev/sda3         2623488   838860799   418118656   8e  Linux LVM
</syntaxhighlight>

<syntaxhighlight lang="bash">
Command (m for help): w
The partition table has been altered!

Calling ioctl() to re-read partition table.

WARNING: Re-reading the partition table failed with error 16: Device or resource busy.
The kernel still uses the old table. The new table will be used at
the next reboot or after you run partprobe(8) or kpartx(8)
Syncing disks.
</syntaxhighlight>