Problems with raid5

[fvdw]

kernel is ok

I made an error in the ls command for modules

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cd /
ls -al /sda1/lib/modules

[samrise]

Dont ask me how, but i just rebooted and:

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login as: root
root@nas's password:
root@nas:/ # uname -a
Linux nas.local 3.14.2 #1 Thu Jan 8 23:24:14 CET 2015 armv5tel unknown unknown GNU/Linux
root@nas:/ #


[fvdw]

you have a remarkable nas...

are the modules loaded ?

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lsmod

or

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cat boot.log

[samrise]

Before that, i put all disks back on place and...

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login as: root
root@nas's password:
root@nas:/ # uname -a
Linux nas.local 3.9.5 #25 Thu Feb 27 22:22:32 GMT+1 2014 armv5tel unknown unknow                                                                                        n GNU/Linux
root@nas:/ #


[fvdw]

That means there is a kernel on either sdb6, sdc6, sdd6 or sde6

lets do the following, delete all partions of sdb, sdc sdd and sde

---edit
then use gdisk to create an GPT (EFI) partition table on sdb sdc, sdd and sde containing only a partition 8
That should should solve this problem

[fvdw]

After that it should boot the kernel from sda.

If the modules fails to load check if there is a folder /lib/modules/3.14.2 containing the modules.
If it is not there something was wrong in extracting the modules tar archive

[fvdw]

I go to bed now, see you tomorrow

[fvdw]

you can use the complete disk for partition 8, accept the default proposal in gdisk will probably do that

[fvdw]

One thing, you can not use GPT for sda. This because your bootloafer doesn't support GPT. If you do that the nas won't boot. The kernel however sopport gpt so that is able to recognize and access sdb...sde with gpt partition table

[samrise]

Its rebuilding now, lets see how it ends. I'm going to wait until it rebuilds to format. Any way, size is still weird:

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root@nas:/ # cat /proc/mdstat
Personalities : [linear] [raid0] [raid1] [raid10] [raid6] [raid5] [raid4]
md0 : active raid5 sde8[4] sdd8[2] sdc8[1] sdb8[0]
      2921581440 blocks level 5, 64k chunk, algorithm 2 [4/3] [UUU_]
      [>....................]  recovery =  0.2% (2536384/973860480) finish=1023.9min speed=15809K/sec

unused devices: <none>
root@nas:/ #


I build array with just 4 disks this time. One is marked as spare, but from what i read this afternoon its normal. Lets wait and see.

Again, thank you for your awsome help.