Hi Russell, there was enough space (in theory) to keep all data on one disk (less than 5GB on a 8GB partition, from memory), and the "btrfs delete" seems to have succeeded. "btrfs filesystem df /" and device stats looked fine and did not show any reference to the second disk.
The trouble only started when I removed the second disk (physically, as in disk on a virtual machine on ESXi). Using a newer kernel is out of question here - I have to use the latest "Enterprise Linux" (CentOS 7) without patches. It looks as I have to abandon all plans to use btrfs and am back in the stone age. Thanks for comments and suggestions Peter On Tue, Jul 28, 2015 at 11:21 PM, Russell Coker <[email protected]> wrote: > On Tue, 28 Jul 2015 01:53:10 PM Peter Ross wrote: > > In the meantime, I experimented with btrfs add/delete. > > > > btrfs delete was the end of it. The system was stuck and after reset it > did > > not boot anymore. > > You need to make sure there's enough space free before doing that. > > If you want your data back then try mounting with a newer kernel. In > future > don't use small filesystems with BTRFS, it's not designed to have lots of > small > partitions the way that Ext* is. > > -- > My Main Blog http://etbe.coker.com.au/ > My Documents Blog http://doc.coker.com.au/ >
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