Re: help on broken file system

[Ermanno Baschiera <ebaschiera@gmail.com>]

Thank you Anand, but, if I'm not wrong, the "delete device" has to be
run against a mount point. But my file system can't be mounted.

2015-04-28 11:20 GMT+02:00 Anand Jain <anand.jain@oracle.com>:
>
>> I have a 3 disks file system configured in RAID1, created with Ubuntu
>
>
> ::
>
>> Having not a spare disk, and being the file system
>> a RAID1, I decided to use one of the 3 disks as target for the
>> restore. I formatted it in EXT4 and tried the restore. The process
> ::
>>
>> [liveuser@localhost ~]$ sudo btrfs fi show
>> warning, device 1 is missing
>> warning devid 1 not found already
>
>
>
>> Label: none  uuid: 32eeac52-699b-4fa2-be61-06206910a37f
>>      Total devices 3 FS bytes used 3.79TiB
>>      devid    3 size 2.73TiB used 2.73TiB path /dev/sda
>>      devid    4 size 2.73TiB used 2.73TiB path /dev/sdc2
>>      *** Some devices missing
>>
>> Btrfs v3.18.2
>
>
>
> Looks like you didn't use btrfs device del to remove a disk, FS still
> shows total devices as 3. presumably kernel knows about a device
> missing. then , 'btrfs device del missing /mnt' will be the first step. IMO.
>