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Redimensionnement disque et partitionnement

0. Description

Après un redimensionnement d'un dataset ZFS, il est nécessaire de corriger la table GPT ainsi qu'agrandir la partition et le système de fichiers.

1. Correction table GPT

  • Lister les disques 

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    debian# fdisk -l                      
GPT PMBR size mismatch (41943039 != 83886079) will be corrected by write.
The backup GPT table is not on the end of the device.     
[...]

  • Correction 

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    debian# parted
GNU Parted 3.6
Using /dev/nvme0n1
Welcome to GNU Parted! Type 'help' to view a list of commands.
(parted) print all
Warning: Not all of the space available to /dev/nvme0n1 appears to be used, you can fix the GPT to use all of the space (an extra 41943040 blocks) or continue with the current setting? 
Fix/Ignore? Fix
[...]
(parted) quit

2. Agrandir une partition

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debian# parted
GNU Parted 3.6
Using /dev/nvme0n1
Welcome to GNU Parted! Type 'help' to view a list of commands.
(parted) print                                                            
Model: bhyve-NVMe (nvme)
Disk /dev/nvme0n1: 42.9GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Disk Flags: 

Number  Start   End     Size    File system  Name  Flags
 1      1049kB  538MB   537MB   fat32              boot, esp
 2      538MB   20.5GB  19.9GB  ext4

(parted) resizepart 2 100%                                                
Warning: Partition /dev/nvme0n1p2 is being used. Are you sure you want to continue?
Yes/No? yes                                                               
(parted) print                                                            
Model: bhyve-NVMe (nvme)
Disk /dev/nvme0n1: 42.9GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Disk Flags: 

Number  Start   End     Size    File system  Name  Flags
 1      1049kB  538MB   537MB   fat32              boot, esp
 2      538MB   42.9GB  42.4GB  ext4

(parted) quit

3. Agrandir le système de fichiers

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debian# /dev/nvme0n1p2
resize2fs 1.47.1 (20-May-2024)
Filesystem at /dev/nvme0n1p2 is mounted on /; on-line resizing required
old_desc_blocks = 3, new_desc_blocks = 5
The filesystem on /dev/nvme0n1p2 is now 10354427 (4k) blocks long.