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For no apparent reason your test file size is really small, only 80MB. A small file like that will make the result less accurate, but also will mean than the entire operation may be satisfied by cache and not test true filesystem performance. To fix I'd make the file size much larger, say a couple of GB. You probably need to do a sync afterwards, and ...


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use the following procedure to install Ubuntu Sever on UEFI systems http://www.bytelinux.com/install-ubuntu-14-10-server-with-custom-partition-layout-using-lvm-on-uefi-systems/ . While the procedure doesn't cover RAID (only LVM partitioning), it can be a starting point on how to slice your disk and create the EFIboot partition. Also take into consideration ...


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I don't believe myself to be 'Qualified' to write such an an “Official Page.” And not being a programming/coding guru. This may or may not become flagged as either a helpful or unhelpful reply, I don't know. I'm just a 'layman'; which upon the recent demise of some of the on-board hardware features of two of my antique PT800 Pentium4 HT mother boards. Began ...


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There is a mayor flaw: Stripe across one SSD and two HDDs. Why?? To slow down the SSD and raise the risk of data loss? Stripe or RAID0 is meant to increase performance among the same type of drives or the slowest member. Take two slow drives and RAID0 will give you a bit better performance. Take one slow and one fast drive, the load is distributed even ...


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Looking at your question, you've probably deleted your Windows recovery partition by now. The best you can do now is to boot your Windows recovery CD/DVD. If you don't have one, but still have your product key, download it from Microsoft. If you don't have your product key, turn your laptop upside down and look for it there. Furthermore, here on ...


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Like the command said, your 5th drive is missing. Either get it working right again, or mount with the -o degraded option to proceed without it ( and the redundancy it provided ).


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No, there is nothing exactly like you ask, but, yes, there is someone who can! You! Head to Ubuntu Registration and start writing it! ;-)


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/home is on a different filesystem (last line of your df command output) and /mnt/data0 doesn't show up within / but as 21% full. In order to get your system back to work, you need to free space on the / filesystem only, where also your /root directory is located. Best thing is to check, where all the space has gone with the du -s command: I.e.: cd / du ...


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If anyone is still reading this older question, note that raid1 is now built-in to lvm2. To mirror an existing lv on a new drive using lvm2: install the new drive and create lvm2 partition(s) (at least the same size as your existing drive's lvm partition(s), or those you want to mirror in any case) (use parted /dev/newdrive) initialise new partition(s) as ...


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I finally got this working thanks to this Stack Overflow post: Windows Spanned Disks (LDM) restoration with Linux? It was extremely difficult to uncover this elusive information. It took days of searching, and I guess I wasn't finding it because the post makes no mention of RAID, so it wasn't coming up in my search results. It definitely works for my ...


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Since 14.04 BOOT_DEGRADED option is not need anymore. system should boot even on degraded array. But - I read about various problems with it - https://bugs.launchpad.net/ubuntu/+source/mdadm/+bug/1341312.


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I found the solution myself....with a bit more patience and effort, I tried several different possibilities with "Testdisk", until I managed to get just the 2TB partition mounted and ... tadah...not even in RAID, but just in plain XFS. It is now working fine and I am recovering all the files from it.


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Managed to get it fixed by installing Ubuntu 14.04.1. worked out of the box.


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I would say soft raid is probably the way to go (so mdadm). On the smaller disk, you create a partition filling it. You check how big it is. You create a partition of the same size on the bigger disk and another partition to fill the rest of it. You set up a raid on the two partitions of equal size. You should be able to look up the rest yourself...



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