On 12/05/2011 08:57 AM, Guido Winkelmann wrote:
Hi, I cannot create a new rbd image in a newly created ceph cluster. When I try it, I get these messages: # rbd create testimage1 --size 10000
<other output trimmed>
2011-12-05 17:41:00.994075 7ffe8b5c3760 librbd: failed to assign a block name for image create error: error 5: Input/output error
This usually happens because your osds can't find cls_rbd.so. They search for it in osd_class_dir, which may not be set correctly by default (bug #1722). Most likely it's looking in /usr/lib/rados-classes instead of /usr/lib64/rados-classes - change osd_class_dir in your ceph.conf and restart the osds to fix it.
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