Celeb Glow
news | April 03, 2026

Recover data from raid 1 disks

I used mdadm to create a raid 1 with 2 disks. After some time I reinstalled the OS (without wiping that 2 disks obviously). What I've done is to assemble that two drives with the following commands:

sudo mdadm --assemble --scan

sudo mdadm --assemble /dev/md0

sudo mount /dev/md0 /mnt/md0

Now if I type sudo mdadm --detail /dev/md0 it seems that everything works fine:

/dev/md0: Version : 1.2 Creation Time : Sat Sep 4 11:16:49 2021 Raid Level : raid1 Array Size : 976629440 (931.39 GiB 1000.07 GB) Used Dev Size : 976629440 (931.39 GiB 1000.07 GB) Raid Devices : 2 Total Devices : 2 Persistence : Superblock is persistent Intent Bitmap : Internal Update Time : Sat Sep 25 10:00:06 2021 State : clean Active Devices : 2 Working Devices : 2 Failed Devices : 0 Spare Devices : 0
Consistency Policy : bitmap Name : xxx:0 (local to host xxx) UUID : e7a0b95f:6fea0216:d094ee3f:2d73bf18 Events : 6243 Number Major Minor RaidDevice State 0 8 17 0 active sync /dev/sdb1 1 8 33 1 active sync /dev/sdc1

But if I type ls /mnt/md0 there is just the lost+found file. How is it possible? Have I lost all my data? Is there a way I can recover them?

2 Reset to default

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