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标题: /dev/sr0 is already mounted or /run/media/root/CentOS 7 x86_64 busy [打印本页]

作者: jiawang 时间: 2022-11-30 12:00
标题: /dev/sr0 is already mounted or /run/media/root/CentOS 7 x86_64 busy
本帖最后由 jiawang 于 2022-12-5 10:55 编辑

[root@sztech yum.repos.d]# df -h
Filesystem             Size  Used Avail Use% Mounted on
devtmpfs                974M    0  974M 0% /dev
tmpfs                   991M    0  991M 0% /dev/shm
tmpfs                   991M 11M  980M 2% /run
tmpfs                   991M    0  991M 0% /sys/fs/cgroup
/dev/mapper/centos-root 48G  6.6G 42G  14% /
/dev/sda1             197M  150M 48M  76% /boot
tmpfs                   199M 24K  199M 1% /run/user/0
/dev/sr0                4.5G  4.5G    0 100% /run/media/root/CentOS 7 x86_64
[root@sztech yum.repos.d]# mount  /dev/sr0  /mnt
mount: /dev/sr0 is already mounted or /run/media/root/CentOS 7 x86_64 busy
   /dev/sr0 is already mounted on /run/media/root/CentOS 7 x86_64
[root@sztech yum.repos.d]#

[root@sztech yum.repos.d]# fuser -m /dev/sr0
[root@sztech yum.repos.d]# fuser -km /dev/sr0
[root@sztech yum.repos.d]# df -h
Filesystem             Size  Used Avail Use% Mounted on
devtmpfs                974M    0  974M 0% /dev
tmpfs                   991M    0  991M 0% /dev/shm
tmpfs                   991M 11M  980M 2% /run
tmpfs                   991M    0  991M 0% /sys/fs/cgroup
/dev/mapper/centos-root 48G  6.6G 42G  14% /
/dev/sda1             197M  150M 48M  76% /boot
tmpfs                   199M 28K  199M 1% /run/user/0
/dev/sr0                4.5G  4.5G    0 100% /run/media/root/CentOS 7 x86_64
取消挂载

[root@sztech yum.repos.d]# umount /dev/sr0
[root@sztech yum.repos.d]# df -h
Filesystem             Size  Used Avail Use% Mounted on
devtmpfs                974M    0  974M 0% /dev
tmpfs                   991M    0  991M 0% /dev/shm
tmpfs                   991M 11M  980M 2% /run
tmpfs                   991M    0  991M 0% /sys/fs/cgroup
/dev/mapper/centos-root 48G  6.6G 42G  14% /
/dev/sda1             197M  150M 48M  76% /boot
tmpfs                   199M 28K  199M 1% /run/user/0

重新挂载

[root@sztech yum.repos.d]# mount /dev/sr0 /mnt
mount: /dev/sr0 is write-protected, mounting read-only
[root@sztech yum.repos.d]# yum makecache
Loaded plugins: fastestmirror, langpacks
Loading mirror speeds from cached hostfile
mnt                                                                                                 | 3.6 kB  00:00:00
(1/4): mnt/group_gz                                                                                  | 153 kB  00:00:00
(2/4): mnt/filelists_db                                                                            | 3.3 MB  00:00:00
(3/4): mnt/primary_db                                                                               | 3.3 MB  00:00:00
(4/4): mnt/other_db                                                                                  | 1.3 MB  00:00:00
Metadata Cache Created
[root@sztech yum.repos.d]#

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