Hi!
i've made an update and played with virtualbox and virtual machine package. After a reboot, i've lost my network connection.
I'm trying to mount the system partition to fix this problem.
With Ubuntu 17.4, i've launched those commands :
root@ubuntu:~# fdisk -l | grep /dev/sd
Disque /dev/sda : 3,7 TiB, 4000787030016 octets, 7814037168 secteurs
/dev/sda1 2048 4982527 4980480 2,4G RAID Linux
/dev/sda2 4982528 9176831 4194304 2G RAID Linux
/dev/sda3 9437184 7813832351 7804395168 3,6T RAID Linux
Disque /dev/sdb : 3,7 TiB, 4000787030016 octets, 7814037168 secteurs
/dev/sdb1 2048 4982527 4980480 2,4G RAID Linux
/dev/sdb2 4982528 9176831 4194304 2G RAID Linux
/dev/sdb3 9437184 7813832351 7804395168 3,6T RAID Linux
Disque /dev/sdc : 3,7 TiB, 4000787030016 octets, 7814037168 secteurs
/dev/sdc1 2048 4982527 4980480 2,4G RAID Linux
/dev/sdc2 4982528 9176831 4194304 2G RAID Linux
/dev/sdc3 9437184 7813832351 7804395168 3,6T RAID Linux
Disque /dev/sdd : 3,7 TiB, 4000787030016 octets, 7814037168 secteurs
/dev/sdd1 2048 4982527 4980480 2,4G RAID Linux
/dev/sdd2 4982528 9176831 4194304 2G RAID Linux
/dev/sdd3 9437184 7813832351 7804395168 3,6T RAID Linux
Disque /dev/sde : 1,8 TiB, 2000397852160 octets, 3907027055 secteurs
/dev/sde1 2048 4982527 4980480 2,4G fd RAID Linux autodétecté
/dev/sde2 4982528 9176831 4194304 2G fd RAID Linux autodétecté
/dev/sde3 9437184 3906822239 3897385056 1,8T fd RAID Linux autodétecté
Disque /dev/sdf : 14,6 GiB, 15640592384 octets, 30548032 secteurs
/dev/sdf1 * 0 3142655 3142656 1,5G 0 Vide
/dev/sdf2 3118960 3123567 4608 2,3M ef EFI (FAT-12/16/32)
root@ubuntu:~# mdadm -Ee0.swap /dev/sda1 /dev/sdb1 /dev/sdc1 /dev/sdd1 /dev/sde1
mdadm: No super block found on /dev/sda1 (Expected magic a92b4efc, got fc4e2ba9)
mdadm: No super block found on /dev/sdb1 (Expected magic a92b4efc, got fc4e2ba9)
mdadm: No super block found on /dev/sdc1 (Expected magic a92b4efc, got fc4e2ba9)
mdadm: No super block found on /dev/sdd1 (Expected magic a92b4efc, got fc4e2ba9)
/dev/sde1:
Magic : a92b4efc
Version : 0.90.00
UUID : aaeda6d3:938f2ebb:15fbf0a3:140e7d59
Creation Time : Sat Jan 1 00:00:05 2000
Raid Level : raid1
Used Dev Size : 2490176 (2.37 GiB 2.55 GB)
Array Size : 2490176 (2.37 GiB 2.55 GB)
Raid Devices : 12
Total Devices : 5
Preferred Minor : 0
Update Time : Sat Dec 2 09:08:38 2017
State : clean
Active Devices : 5
Working Devices : 5
Failed Devices : 7
Spare Devices : 0
Checksum : a47f6fae - correct
Events : 759060
Number Major Minor RaidDevice State
this 4 8 81 4 active sync /dev/sdf1
0 0 8 1 0 active sync /dev/sda1
1 1 8 17 1 active sync /dev/sdb1
2 2 8 33 2 active sync /dev/sdc1
3 3 8 49 3 active sync /dev/sdd1
4 4 8 81 4 active sync /dev/sdf1
5 5 0 0 5 faulty removed
6 6 0 0 6 faulty removed
7 7 0 0 7 faulty removed
8 8 0 0 8 faulty removed
9 9 0 0 9 faulty removed
10 10 0 0 10 faulty removed
11 11 0 0 11 faulty removed
root@ubuntu:~# mdadm -AU byteorder /dev/md0 /dev/sda1 /dev/sdb1 /dev/sdc1 /dev/sdd1 /dev/sde1
mdadm: No super block found on /dev/sda1 (Expected magic a92b4efc, got fc4e2ba9)
mdadm: no RAID superblock on /dev/sda1
mdadm: /dev/sda1 has no superblock - assembly aborted
Please, could you help me?