挂载本地镜像出现问题

新建的虚拟机，想搭建一个yum，于是乎就先进行了一次本地挂载。

结果竟然挂载不上。

[[email protected] ~]# mount /root/rhel-server-6.5-x86_64-dvd.iso  /mnt/

mount: /root/rhel-server-6.5-x86_64-dvd.iso is not a block device (maybe try `-o loop‘?)

经过解决，发现mount后需要加-o loop

-o loop=：使用 loop 模式用来将一个档案当成硬盘分割挂上系统

网上有人说，iso文件镜像都是需要添加-o loop.

[[email protected] ~]# mount -o loop /root/rhel-server-6.5-x86_64-dvd.iso  /mnt/

[[email protected] ~]# ls /mnt/

.discinfo                   media.repo                  RELEASE-NOTES-or-IN.html

EFI/                        Packages/                   RELEASE-NOTES-pa-IN.html

EULA                        README                      RELEASE-NOTES-pt-BR.html

EULA_de                     RELEASE-NOTES-as-IN.html    RELEASE-NOTES-ru-RU.html

EULA_en                     RELEASE-NOTES-bn-IN.html    RELEASE-NOTES-si-LK.html

EULA_es                     RELEASE-NOTES-de-DE.html    RELEASE-NOTES-ta-IN.html

EULA_fr                     RELEASE-NOTES-en-US.html    RELEASE-NOTES-te-IN.html

EULA_it                     RELEASE-NOTES-es-ES.html    RELEASE-NOTES-zh-CN.html

EULA_ja                     RELEASE-NOTES-fr-FR.html    RELEASE-NOTES-zh-TW.html

EULA_ko                     RELEASE-NOTES-gu-IN.html    repodata/

EULA_pt                     RELEASE-NOTES-hi-IN.html    ResilientStorage/

EULA_zh                     RELEASE-NOTES-it-IT.html    RPM-GPG-KEY-redhat-beta

GPL                         RELEASE-NOTES-ja-JP.html    RPM-GPG-KEY-redhat-release

HighAvailability/           RELEASE-NOTES-kn-IN.html    ScalableFileSystem/

images/                     RELEASE-NOTES-ko-KR.html    Server/

isolinux/                   RELEASE-NOTES-ml-IN.html    TRANS.TBL

LoadBalancer/               RELEASE-NOTES-mr-IN.html    .treeinfo

之后挂载成功！