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mount: unknown filesystem type ‘linux_raid_member’ FORMAT ULANG

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dengan type ‘linux_raid_member’ agak bingung juga, karena linux nya tidak mengunakan RAID software tapi hardisk bekasnya mengunakan raidsoftware.

[code lang=”bash”]# mount /dev/sdc1 /mnt
mount: unknown filesystem type ‘linux_raid_member'[/code]

iya sampe disana saya stuck berbulan2 saja dan tidak bisa lanjut karena bingung wkwkwkw lalu saya baca ini ttps://serverfault.com/questions/383362/mount-unknown-filesystem-type-linux-raid-member

saya cek koq bisa ada raid yang inactive? ke mount di /dev/md127
[code lang=”bash”]# cat /proc/mdstat
Personalities : [raid0]
md127 : inactive sdc1[1](S)
2930134471 blocks super 1.2

unused devices[/code]

coba di mount gagal lagi
[code lang=”bash”]# mount /dev/md127 /mnt
mount: you must specify the filesystem type [/code]

jika demikian coba kita stop dan kita coba hancurkan sekalian partisinya, karena ingat kita tidak butuh data lamanya.
[code lang=”bash”]# mdadm –stop /dev/md127[/code]

cek kembali pastikan sudah tidak termount, karena akan selalu busy pesanya nanti.
[code lang=”bash”]# cat /proc/mdstat[/code]

hardisk ini ukuranya kurang dari 3Tb jadi bisa kita partisi dengan gdisk
1.create a new empty GUID partition table dengan GDISK
[code lang=”bash”]# gdisk /dev/sdc
GPT fdisk (gdisk) version 0.8.10[/code]

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//graizoah.com/afu.php?zoneid=3526959

[code lang=”bash”]Partition table scan:
MBR: protective
BSD: not present
APM: not present
GPT: present[/code]
[code lang=”bash”]Found valid GPT with protective MBR; using GPT.[/code]
[code lang=”bash”]Command (? for help): o
This option deletes all partitions and creates a new protective MBR.
Proceed? (Y/N): y[/code]
[code lang=”bash”]Command (? for help): w[/code]
[code lang=”bash”]Final checks complete. About to write GPT data. THIS WILL OVERWRITE EXISTING
PARTITIONS!![/code]
[code lang=”bash”]Do you want to proceed? (Y/N): y
OK; writing new GUID partition table (GPT) to /dev/sdc.
Warning: The kernel is still using the old partition table.
The new table will be used at the next reboot.
The operation has completed successfully.[/code]

2.add a new partition dengan GDISK
[code lang=”bash”] # gdisk /dev/sdc
GPT fdisk (gdisk) version 0.8.10

Partition table scan:
MBR: protective
BSD: not present
APM: not present
GPT: present[/code]

[code lang=”bash”]Found valid GPT with protective MBR; using GPT.[/code]
[code lang=”bash”]Command (? for help): ?
b back up GPT data to a file
c change a partition’s name
d delete a partition
i show detailed information on a partition
l list known partition types
n add a new partition
o create a new empty GUID partition table (GPT)
p print the partition table
q quit without saving changes
r recovery and transformation options (experts only)
s sort partitions
t change a partition’s type code
v verify disk
w write table to disk and exit
x extra functionality (experts only)
? print this menu[/code]

[code lang=”bash”]Command (? for help): p
Disk /dev/sdc: 5860533168 sectors, 2.7 TiB
Logical sector size: 512 bytes
Disk identifier (GUID): F1E9F36B-FA50-4E93-9EDA-BB44F8333144
Partition table holds up to 128 entries
First usable sector is 34, last usable sector is 5860533134
Partitions will be aligned on 2048-sector boundaries
Total free space is 5860533101 sectors (2.7 TiB)[/code]

[code lang=”bash”]Number Start (sector) End (sector) Size Code Name[/code]
[code lang=”bash”]Command (? for help): n (enter-enter saja)
Partition number (1-128, default 1):
First sector (34-5860533134, default = 2048) or {+-}size{KMGTP}:
Last sector (2048-5860533134, default = 5860533134) or {+-}size{KMGTP}:
Current type is ‘Linux filesystem’
Hex code or GUID (L to show codes, Enter = 8300):
Changed type of partition to ‘Linux filesystem’ [/code]
[code lang=”bash”]Command (? for help): w[/code]
[code lang=”bash”]Final checks complete. About to write GPT data. THIS WILL OVERWRITE EXISTING
PARTITIONS!![/code]
[code lang=”bash”]Do you want to proceed? (Y/N): y
OK; writing new GUID partition table (GPT) to /dev/sdc.
Warning: The kernel is still using the old partition table.
The new table will be used at the next reboot.
The operation has completed successfully.[/code]
kita cek partisinya
[code lang=”bash”]# gdisk -l /dev/sdc
GPT fdisk (gdisk) version 0.8.10[/code]
[code lang=”bash”]Partition table scan:
MBR: protective
BSD: not present
APM: not present
GPT: present[/code]
[code lang=”bash”]Found valid GPT with protective MBR; using GPT.
Disk /dev/sdc: 5860533168 sectors, 2.7 TiB
Logical sector size: 512 bytes
Disk identifier (GUID): F1E9F36B-FA50-4E93-9EDA-BB44F8333144
Partition table holds up to 128 entries
First usable sector is 34, last usable sector is 5860533134
Partitions will be aligned on 2048-sector boundaries
Total free space is 2014 sectors (1007.0 KiB)[/code]
[code lang=”bash”]Number Start (sector) End (sector) Size Code Name
1 2048 5860533134 2.7 TiB 8300 Linux filesystem[/code]
yap berhasil terbaca sizenya 2.7 TiB

3. saatnya format
[code lang=”bash”]# mkfs.ext4 /dev/sdc1
mke2fs 1.42.6 (21-Sep-2012)
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
Stride=0 blocks, Stripe width=0 blocks
183148544 inodes, 732566385 blocks
36628319 blocks (5.00%) reserved for the super user
First data block=0
Maximum filesystem blocks=4294967296
22357 block groups
32768 blocks per group, 32768 fragments per group
8192 inodes per group
Superblock backups stored on blocks:
32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208,
4096000, 7962624, 11239424, 20480000, 23887872, 71663616, 78675968,
102400000, 214990848, 512000000, 550731776, 644972544[/code]
[code lang=”bash”]Allocating group tables: done
Writing inode tables: done
Creating journal (32768 blocks): done
Writing superblocks and filesystem accounting information: done [/code]
4. mounting dan selesai
[code lang=”bash”]# mount /dev/sdc1 /mnt
# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/sda1 99G 47G 47G 50% /
tmpfs 24G 0 24G 0% /dev/shm
/dev/sdb1 1.8T 1.8T 0 100% /backup
/dev/sdc1 2.7T 73M 2.6T 1% /mnt [/code]

[code lang=”bash”]<strong style="font-family: Georgia, ‘Times New Roman’, ‘Bitstream Charter’, Times, serif;">5. agar mount otomatis jangan lupa untuk diubah UUIDnya di fstab[/code]
[code lang=”bash”]# blkid
/dev/sdc1: UUID="081b3a15-0efb-4c4e-9233-482dcf7387f3" TYPE="ext4"
# cat /etc/fstab | grep backup
UUID=081b3a15-0efb-4c4e-9233-482dcf7387f3 /backup ext4 defaults 1 2
[/code]
error saat format ini karena kita tidak stop dahulu mdadmnya
[code lang=”bash”]# mkfs.ext4 /dev/sdc1
mke2fs 1.42.6 (21-Sep-2012)
/dev/sdc1 is apparently in use by the system; will not make a filesystem here!
[/code]
untuk restore data dari disk type raid ini nanti akan dibuatkan dan teryata sudah pernah dibuat dan tercecer, alamak :D© http://carauntuk.com/mount-unknown-filesystem-type-linux_raid_member-format-ulang

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cu.adminhttp://carauntuk.com
Nama: Arie Ibrahim | Lahir : 16 january 1987 | Lulus : SMA 28 Oktober 1928 jakarta Selatan Tahun 2005 | Keahlian : dibidang komputer. | Ketertarikan: ilmu komputer, ilmu Quran, dan Ilmu Fisika. | Kontak : arie@carauntuk.com adpit31@gmail.com | Pesan : semoga artikel diatas bermanfaat bagi saya pribadi dan yang membutuhkannya, Terimakasih
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