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Disk sdd contains bios raid metadata

While trying to install OS on one of the servers, Was getting error

“Disk sdd contains bios raid metadata”

The issue was the drive present has RAID data as earlier it was used to create RAID in some other server.

So process was to delete all RAID data in it and get ready for the new OS install

[root@localhost ~]# dmraid -r
/dev/sdb: ddf1, “.ddf1_disks”, GROUP, ok, 1951170560 sectors, data@ 0

[root@localhost ~]# mdadm –zero-superblock /dev/sdb
mdadm: Couldn’t open /dev/sdb for write – not zeroing

[root@localhost ~]# dmraid -r
/dev/sdb: ddf1, “.ddf1_disks”, GROUP, ok, 1951170560 sectors, data@ 0

[root@localhost ~]# dd if=/dev/zero of=/dev/sdb bs=512 seek=1951170560
dd: writing `/dev/sdb’: No space left on device
2354609+0 records in
2354608+0 records out
1205559296 bytes (1.2 GB) copied, 16.0356 s, 75.2 MB/s

[root@localhost ~]# dmraid -r
no raid disks

Reboot Server

Once online can format the drive using mkfs

[root@localhost ~]# mkfs.ext4 /dev/sdb
mke2fs 1.41.12 (17-May-2010)
/dev/sdb is entire device, not just one partition!
Proceed anyway? (y,n) y
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
Stride=0 blocks, Stripe width=0 blocks
61054976 inodes, 244190646 blocks
12209532 blocks (5.00%) reserved for the super user
First data block=0
Maximum filesystem blocks=4294967296
7453 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

Writing inode tables: done
Creating journal (32768 blocks): done
Writing superblocks and filesystem accounting information: done

This filesystem will be automatically checked every 31 mounts or
180 days, whichever comes first. Use tune2fs -c or -i to override.

Now I am able to install OS on it without any problem on it 🙂

 

This entry was posted in Linux and tagged bios raid metadata, RAID on November 23, 2017 by LinuxTech.

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