fdisk

[Piviul <piviul@riminilug.it>]

Ciao a tutti, pensavo di essere su un pc invece ero su un altro... con 
fdisk sono entrato in un device, ho premuto g (per dare un nuovo PTUUID) 
e quando ho premuto w mi sono accorto della cazzata che avevo fatto:

> # fdisk /dev/sdb
>
> Welcome to fdisk (util-linux 2.36.1).
> Changes will remain in memory only, until you decide to write them.
> Be careful before using the write command.
>
>
> Command (m for help): p
> Disk /dev/sdb: 16,37 TiB, 18000207937536 bytes, 35156656128 sectors
> Disk model: ST18000NM000J-2T
> Units: sectors of 1 * 512 = 512 bytes
> Sector size (logical/physical): 512 bytes / 4096 bytes
> I/O size (minimum/optimal): 4096 bytes / 4096 bytes
> Disklabel type: gpt
> Disk identifier: FC0B6515-8726-4544-9489-EFC50A4E744B
>
> Device       Start         End     Sectors  Size Type
> /dev/sdb1     2048     1050623     1048576  512M EFI System
> /dev/sdb2  1050624     2050047      999424  488M Linux RAID
> /dev/sdb3  2050048 35156654079 35154604032 16,4T Linux LVM
>
> Command (m for help): g
> Created a new GPT disklabel (GUID: F8F3B681-A5BA-7B43-83A5-7A542F69F86D).
>
> Command (m for help): p
> Disk /dev/sdb: 16,37 TiB, 18000207937536 bytes, 35156656128 sectors
> Disk model: ST18000NM000J-2T
> Units: sectors of 1 * 512 = 512 bytes
> Sector size (logical/physical): 512 bytes / 4096 bytes
> I/O size (minimum/optimal): 4096 bytes / 4096 bytes
> Disklabel type: gpt
> Disk identifier: F8F3B681-A5BA-7B43-83A5-7A542F69F86D
>
> Command (m for help): w
> The partition table has been altered.
> Failed to remove partition 2 from system: Device or resource busy
> Failed to remove partition 3 from system: Device or resource busy
>
> The kernel still uses the old partitions. The new table will be used 
> at the next reboot.
> Syncing disks.

e mo che fo?!?

Piviul