如何解决找不到/bootstrap-osd/ceph.keyring的问题，很多新手对此不是很清楚，为了帮助大家解决这个难题，下面小编将为大家详细讲解，有这方面需求的人可以来学习下，希望你能有所收获。
ceph-deploy mon create-initial 命令执行后， 如果提示：
[ceph_deploy.mon][INFO ] Running gatherkeys... [ceph_deploy.gatherkeys][DEBUG ] Checking manila59 for /etc/ceph/ceph.client.admin.keyring [manila59][DEBUG ] connected to host: manila59 [manila59][DEBUG ] detect platform information from remote host [manila59][DEBUG ] detect machine type [manila59][DEBUG ] fetch remote file [ceph_deploy.gatherkeys][WARNIN] Unable to find /etc/ceph/ceph.client.admin.keyring on ['manila59'] [ceph_deploy.gatherkeys][DEBUG ] Have ceph.mon.keyring [ceph_deploy.gatherkeys][DEBUG ] Checking manila59 for /var/lib/ceph/bootstrap-osd/ceph.keyring [manila59][DEBUG ] connected to host: manila59 [manila59][DEBUG ] detect platform information from remote host [manila59][DEBUG ] detect machine type [manila59][DEBUG ] fetch remote file [ceph_deploy.gatherkeys][WARNIN] Unable to find /var/lib/ceph/bootstrap-osd/ceph.keyring on ['manila59'] [ceph_deploy.gatherkeys][DEBUG ] Checking manila59 for /var/lib/ceph/bootstrap-mds/ceph.keyring [manila59][DEBUG ] connected to host: manila59 [manila59][DEBUG ] detect platform information from remote host [manila59][DEBUG ] detect machine type [manila59][DEBUG ] fetch remote file [ceph_deploy.gatherkeys][WARNIN] Unable to find /var/lib/ceph/bootstrap-mds/ceph.keyring on ['manila59']
可以执行： [root@manila59 deploy]# ceph-create-keys --id manila59
分析发现此处可能连接了外网，要确保DNS正常。
ceph-deploy osd prepare manila59:/dev/sdb 命令后，如果提示：
[ceph_deploy][ERROR ] RuntimeError: bootstrap-osd keyring not found; run 'gatherkeys'
执行ceph-deploy gatherkeys manila59：
那么就会先找：/etc/ceph/ceph.client.admin.keyring，然后再找/var/lib/ceph/bootstrap-osd/ceph.keyring和/var/lib/ceph/bootstrap-mds/ceph.keyring ，最后发现ceph.bootstrap-mds.keyring key from manila59。
注意：disk zap 命令是不需要权限的，而osd prepare 需要bootstrap-mds.keyring。
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