一年内,我第二次遇到幻影挂载。“正常”系统工具显示 CIFS 挂载不存在,但它实际上仍然存在。添加或(批量)删除文件会立即反映在远程服务器上。下面是“df”、“mtab”的略微删减的输出,然后 /proc 显示的是实际发生的情况。有人知道这是怎么发生的吗?
root@phoenix:/proc# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/md0 38G 12G 25G 34% /
varrun 1.7G 736K 1.7G 1% /var/run
varlock 1.7G 0 1.7G 0% /var/lock
udev 1.7G 64K 1.7G 1% /dev
devshm 1.7G 0 1.7G 0% /dev/shm
/dev/md1 1.4T 1.2T 89G 94% /data
root@phoenix:/proc# cat /etc/mtab
/dev/md0 / ext3 rw 0 0
proc /proc proc rw,noexec,nosuid,nodev 0 0
/sys /sys sysfs rw,noexec,nosuid,nodev 0 0
varrun /var/run tmpfs rw,noexec,nosuid,nodev,mode=0755 0 0
varlock /var/lock tmpfs rw,noexec,nosuid,nodev,mode=1777 0 0
udev /dev tmpfs rw,mode=0755 0 0
devshm /dev/shm tmpfs rw 0 0
devpts /dev/pts devpts rw,gid=5,mode=620 0 0
/dev/md1 /data ext3 rw 0 0
securityfs /sys/kernel/security securityfs rw 0 0
root@phoenix:/proc# cat mounts
rootfs / rootfs rw 0 0
none /sys sysfs rw,nosuid,nodev,noexec 0 0
none /proc proc rw,nosuid,nodev,noexec 0 0
udev /dev tmpfs rw,relatime 0 0
fusectl /sys/fs/fuse/connections fusectl rw,relatime 0 0
/dev/md0 / ext3 rw,relatime,data=ordered 0 0
/dev/md0 /dev/.static/dev ext3 rw,relatime,data=ordered 0 0
tmpfs /var/run tmpfs rw,nosuid,nodev,noexec 0 0
tmpfs /var/lock tmpfs rw,nosuid,nodev,noexec 0 0
tmpfs /dev/shm tmpfs rw,relatime 0 0
devpts /dev/pts devpts rw,relatime 0 0
tmpfs /var/run tmpfs rw,nosuid,nodev,noexec 0 0
tmpfs /var/lock tmpfs rw,nosuid,nodev,noexec 0 0
//10.200.4.4/K /mnt/FC_shares/K cifs rw,mand,relatime,unc=\\10.200.4.4\K,username=XXXXX,domain=XXXXX,uid=0,gid=0,rsize=16384,wsize=57344 0 0
tmpfs /var/run tmpfs rw,nosuid,nodev,noexec 0 0
tmpfs /var/lock tmpfs rw,nosuid,nodev,noexec 0 0
/dev/md1 /data ext3 rw,relatime,data=ordered 0 0
securityfs /sys/kernel/security securityfs rw,relatime 0 0
tmpfs /var/run tmpfs rw,nosuid,nodev,noexec 0 0
tmpfs /var/lock tmpfs rw,nosuid,nodev,noexec 0 0
答案1
我只在两次场合见过幻影坐骑:
- 使用时
mount --no-mtab
/
以只读方式挂载