Tutorial ini dibuat untuk mengkloning partisi pada hdd lama ke hdd baru atau melakukan repair partisi pada hdd lama apabila terjadi kerusakan
Backup partisi table #
Backup dengan commmand sfdisk seperti berikut
sfdisk -d /dev/vda > backup.img
sesuaikan dengan partisi yang ingin kalian backup misal vda, sda, dll {: .prompt-tip }
Isi file backup.img
# cat backup.img
label: gpt
label-id: A01CA716-11FF-42B7-B0F3-8A6E9FF8CE6F
device: /dev/vda
unit: sectors
first-lba: 34
last-lba: 4612062
sector-size: 512
/dev/vda1 : start= 227328, size= 4384735, type=0FC63DAF-8483-4772-8E79-3D69D8477DE4, uuid=CA28AB7B-93EC-418B-99BC-87C42F331D2B
/dev/vda14 : start= 2048, size= 8192, type=21686148-6449-6E6F-744E-656564454649, uuid=F0DC197C-99CB-4287-8A13-3FA7CAF72163
/dev/vda15 : start= 10240, size= 217088, type=C12A7328-F81F-11D2-BA4B-00A0C93EC93B, uuid=4DC63329-B918-43F2-A8F3-093AE90CEF9A
Restore partisi table #
Untuk restore pada percobaan dibawah menggunakan hdd baru [vdb]
Namun bisa juga kalian sesuaikan dengan hdd lama [vda]. pastikan semua data yang ada di hdd lama sudah dibackup
Untuk perintah restore dengan sfdisk
sfdisk /dev/vdb < backup.img
Output
Checking that no-one is using this disk right now ... OK
Disk /dev/vdb: 3 GiB, 3221225472 bytes, 6291456 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
>>> Script header accepted.
>>> Script header accepted.
>>> Script header accepted.
>>> Script header accepted.
>>> Script header accepted.
>>> Script header accepted.
>>> Script header accepted.
>>> Created a new GPT disklabel (GUID: A01CA716-11FF-42B7-B0F3-8A6E9FF8CE6F).
/dev/vdb1: Created a new partition 1 of type 'Linux filesystem' and of size 2.1 GiB.
/dev/vdb2: Created a new partition 14 of type 'BIOS boot' and of size 4 MiB.
/dev/vdb15: Created a new partition 15 of type 'EFI System' and of size 106 MiB.
/dev/vdb16: Done.
New situation:
Disklabel type: gpt
Disk identifier: A01CA716-11FF-42B7-B0F3-8A6E9FF8CE6F
Device Start End Sectors Size Type
/dev/vdb1 227328 4612062 4384735 2.1G Linux filesystem
/dev/vdb14 2048 10239 8192 4M BIOS boot
/dev/vdb15 10240 227327 217088 106M EFI System
Partition table entries are not in disk order.
The partition table has been altered.
Calling ioctl() to re-read partition table.
Syncing disks.
Cek partisi table dengan fdisk
hdd lama [vda]
# fdisk -l /dev/vda
Disk /dev/vda: 2.2 GiB, 2361393152 bytes, 4612096 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
Disklabel type: gpt
Disk identifier: A01CA716-11FF-42B7-B0F3-8A6E9FF8CE6F
Device Start End Sectors Size Type
/dev/vda1 227328 4612062 4384735 2.1G Linux filesystem
/dev/vda14 2048 10239 8192 4M BIOS boot
/dev/vda15 10240 227327 217088 106M EFI System
Partition table entries are not in disk order.
hdd baru [vdb]
# fdisk -l /dev/vdb
Disk /dev/vdb: 3 GiB, 3221225472 bytes, 6291456 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
Disklabel type: gpt
Disk identifier: A01CA716-11FF-42B7-B0F3-8A6E9FF8CE6F
Device Start End Sectors Size Type
/dev/vdb1 227328 4612062 4384735 2.1G Linux filesystem
/dev/vdb14 2048 10239 8192 4M BIOS boot
/dev/vdb15 10240 227327 217088 106M EFI System
Partition table entries are not in disk order.