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### Create mdadm RAID on a RaspPi and store the / partition on it ### |
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I recently replaced my old VIA-based home server by a fresh new RaspberryPI B+ … |
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I won't go into details about how to initialize the RAID here, since I already … |
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Mounting such RAID as an additional mount point is easy, but what if I'd like t… |
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=== no RAID-related modules at boot -> use an initramfs === |
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The problem that I had to deal with is that the Raspbian kernel doesn't include… |
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Add the following lines to the /etc/initramfs-tools/modules file: |
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raid1 |
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md_mod |
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ext4 |
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Then, (re)build the initramfs image: |
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# update-initramfs -c -k `uname -r` |
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Having an initramfs image is not all - yet we need to tell the system to use it… |
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# uname -r |
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It will be something in the form of 3.10.XX+. Then, add the following 2 lines t… |
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kernel=kernel.img |
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initramfs initrd.img-3.12.35+ followkernel |
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=== copy the root partition to the raid === |
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Now that we have a RAID-aware initramfs, we can finally make use of our RAID to… |
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# cp -ax / /mnt/newroot/ |
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=== make the boot loader to use your md0 device for boot === |
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Finally, we will be able to ask the system to use our new root partition during… |
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# cat /boot/cmdline.txt |
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dwc_otg.lpm_enable=0 console=ttyAMA0,115200 console=tty1 root=/dev/md0p1 rootfs… |
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You should also modify your /etc/fstab file accordingly (although I noticed tha… |
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Now, if all went fine, we should be able to reboot, and the RaspberryPI will ha… |
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