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How can I add a RAID 1 array in Ubuntu 10.04?

Fresh7 days ago
Mar 15, 202615764 views
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Problem

I have an existing Ubuntu 10.04 desktop system setup and running on a hard drive (drive A). I'd like to add two more hard drives (drives B and C, same size) to the system and mount them as a RAID 1 array. How do I do that? I know how to create RAID arrays during the installation, but I don't want t…

Error Output

DEVICE partitions
ARRAY /dev/md0 level=raid1 num-devices=2 metadata=00.90 UUID=4fd3b193:c6c09dea:46ed9f91:db68f1c3

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Fix for: How can I add a RAID 1 array in Ubuntu 10.04?

Low Risk

OK, All the command line stuff - assuming the new drives are /dev/sdb and /dev/sdc - check and make a note of the drives you want to work on. Double check this - you don't want to do anything with your OS disk!!! All done as root (sudo -i) ... 1) Us…

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