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[root@centos7-original ~]# file /dev/sdb1
/dev/sdb1: cannot open (No such file or directory)
[root@centos7-original ~]# partprobe
[root@centos7-original ~]# partprobe
[root@centos7-original ~]# file /dev/sdb1
/dev/sdb1: block special
# 表示成功
mkfs.xfs /dev/sdb1
# 新的系统添加
mkdir /var/repo/
mount /dev/sdb1 /var/repo/
# 查看挂载
df -h
###
##/dev/sdb1 30G 33M 30G 1% /var/repo
###
# 查看目录中文件容量
du -sh /var/repo/
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