Parece que seu disco formatado com /dev/ada4
MBR do Linux não é reconhecido corretamente pelo driver FreeBSD geom . Por isso, pode ser visto através do utilitário legado fdisk
, mas não através de gpart show ada4
.
Pode ser devido ao fato de que este dispositivo ada4
está obviamente usando uma extensão MBR não padrão para manipular discos de 2TB + (2 partições com quase 2 TB cada).
Em MBR wikipedia :
A preferência doMBR partition entries and the MBR boot code used in commercial operating systems, however, are limited to 32 bits. Therefore, the maximum disk size supported on disks using 512-byte sectors (whether real or emulated) by the MBR partitioning scheme (without using non-standard methods) is limited to 2 TB. Consequently, a different partitioning scheme must be used for larger disks, as they have become widely available since 2010. The MBR partitioning scheme is therefore in the process of being superseded by the GUID Partition Table (GPT). The official approach does little more than ensuring data integrity by employing a protective MBR. Specifically, it does not provide backward compatibility with operating systems that do not support the GPT scheme as well. In the meanwhile, multiple forms of hybrid MBRs have been designed and implemented by third-parties in order to maintain partitions located in the first physical 2 TB of a disk in both partitioning schemes "in parallel" and/or to allow older operating systems to boot off GPT partitions as well. The present, non-standard nature, of these solutions can cause various compatibility problems in certain scenarios though.
FreeBSD agora é sobre o esquema de particionamento GPT e MBR e o utilitário fdisk
deve considerar o legado em relação à mídia não removível .