Hi!

I'm new to unraid.

I had a power loss a couple weeks ago and when i boot it says "lzma data is corrupted system halted", I have tried a couple of things to make it boot but not succeeded, got it booted with a new install to the usb memory.

Now I wonder if I can start a new array without losing any data from hdd. 

Or what else can i do?

Did you make a backup of any of the flash before doing a new install?

 

You really should have asked here before doing anything since it is often very easy to get going again exactly as before. All you need is a copy of the config folder that was on flash.

If you don't have any backup to go from, do you have any recent screenshots, syslogs, or diagnostics we could use to determine your disk assignments?

 

Worst case, you can start a new array by simply assigning ALL disks to data slots. This will avoid possibly assigning a data disk to parity and losing its data. Then if there is a single disk showing as unmountable it is the parity disk.

Sort of depends on the number of drives in the array. If it only had 1 data and 1 party drive, both will show as valid when mounted as data drives, since that is a mirror setup.

7 minutes ago, BRiT said:

Sort of depends on the number of drives in the array. If it only had 1 data and 1 party drive, both will show as valid when mounted as data drives, since that is a mirror setup.

Yes, and if 2 parity then there would be 2 unmountable. No response from OP. Hope they don't do something wrong trying to figure this out on their own.

Hi!

Sorry have been busy with other stuffs!

Tanks for trying to figure it out!

I took a copy of the ubs drive before i started doing somthing new with it.

so thats means i could just try copy the config folder over to the usb and boot?

i had 1 parity and 3 data disks.

If you have a recent backup of config folder from flash, then prepare flash as a new install, copy the backup of config folder to that new install, and boot.

Awsome, it worked!

Thanks alot! 👌👍