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My computer has become unbootable, and it holds a RAID-5 data disk Array (mdadm ) which I need to recover.

No OS will boot, nor USB, nor DVD, nor hard disk installed, except for the Ubuntu minimal installation CD ( DVD drive, CD+R ) which installs successfully but still my computer fails to reboot.

What is different on this minimal CD? It does gives me hope...

Is there a way to recover my data from the disks? I'm a bit reluctant to experiment on this..

My motherboard is a GA-81945GMP which I performed a CMOS/ Bios reset on but no result.

I already did a fresh install with just one hard disk and the Raid PCI slots disconnected. The Boot repair disk ( CD-R ) also fails to boot.

Zanna
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Whois_me
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2 Answers2

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The worst enemy of RAID is faulty hardware on data transfer line. So if you really value the data on your RAID the first thing you should have done is plug those HDDs off the faulty machine. (From power lines too). Bad RAM can ruin metadata even on read access. (something too clever for it's own good may kick in, like disk checker)
Use USB live stick or another HDD to test your hardware, and only when you are sure all other equipment is fine you may plug your RAID back.

Barafu Albino
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My OS works again. I had to transport it another PC and boot from there, with the help of the "boot repair disk"

Switched the grub line to "Text" mode instead of splash and finally I installed openSSH to it so I can login the OS remotely.

Thanks everybody for the kind help.

Whois_me
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