Estou usando o Cent OS 6.5.
Eu tenho dois discos rígidos que são cópias exatas uns dos outros (/ dev / sda e / dev / sdb).
/ dev / sda falhou e teve que ser substituído.
Estou tentando copiar tudo de / dev / sdb para / dev / sda .
Quando tento executar o comando sfdisk -d / dev / sdb | sfdisk / dev / sda , recebo o seguinte resultado:
Checking that no-one is using this disk right now ...
OK
Disk /dev/sda: 121601 cylinders, 255 heads, 63 sectors/track
Old situation:
Units = cylinders of 8225280 bytes, blocks of 1024 bytes, counting from 0
Device Boot Start End #cyls #blocks Id System
/dev/sda1 0 - 0 0 0 Empty
/dev/sda2 0 - 0 0 0 Empty
/dev/sda3 0 - 0 0 0 Empty
/dev/sda4 0 - 0 0 0 Empty
New situation:
Units = sectors of 512 bytes, counting from 0
Device Boot Start End #sectors Id System
/dev/sda1 * 4096 41947135 41943040 fd Linux raid autodetect
/dev/sda2 41947136 1952468991 1910521856 fd Linux raid autodetect
/dev/sda3 1952468992 1953519615 1050624 82 Linux swap / Solaris
/dev/sda4 0 - 0 0 Empty
Warning: partition 1 does not end at a cylinder boundary
sfdisk: I don't like these partitions - nothing changed.
(If you really want this, use the --force option.)
parted -l retorna o seguinte:
Model: ATA Hitachi HUA72201 (scsi)
Disk /dev/sda: 1000GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
Number Start End Size Type File system Flags
Model: ATA ST1000DM003-9YN1 (scsi)
Disk /dev/sdb: 1000GB
Sector size (logical/physical): 512B/4096B
Partition Table: msdos
Number Start End Size Type File system Flags
1 2097kB 21.5GB 21.5GB primary ext4 boot, raid
2 21.5GB 1000GB 978GB primary ext4 raid
3 1000GB 1000GB 538MB primary linux-swap(v1)
Eu também tentei sgdisk -R = / dev / sda / dev / sdb mas o comando retorna absolutamente nenhuma saída ou mensagem de erro.
O que eu devo fazer?
The requirement to align to cylinder boundaries has been gone for a long time now. With the introduction of drives with 4k blocks and SSDs with 128k erasure blocks it has become neccessary to align to multiples of those instead. An alignment to 1MiB boundaries seems to become the new standard and is what DI uses in squeeze.
Você pode usar a opção --force se achar que o alinhamento está correto.