Shulou(Shulou.com)06/02 Report--

On January 19, 2017, a psychic event occurred while cleaning up a directory on the linux server, and there was something that rm-rf could not delete, excluding the occupation of user processes, but in the end I deleted it.

The process is as follows:

[oracle@se31] $uname-a

Linux se31 3.8.13-44.1.1.el6uek.x86_64 # 2 SMP Wed Sep 10 06:10:25 PDT 2014 x86 "64 GNU/Linux

[oracle@se31 ~] $

[root@se31 /] # ls-l

Total 148

Dr-xr-xr-x. 2 root root 4096 Jul 1 2016 bin

Dr-xr-xr-x. 5 root root 4096 Dec 31 2015 boot

Drwxr-xr-x. 2 root root 4096 Oct 15 2014 cgroup

Drwxr-xr-x 17 root root 3940 Nov 5 13:29 dev

Drwxr-xr-x. 121 root root 12288 Jan 19 09:18 etc

Drwxr-xr-x. 9 root root 4096 Dec 12 09:14 home

Drwxr-xr-x. 13 root root 4096 Jul 1 2016 lib

Dr-xr-xr-x. 9 root root 12288 Jul 1 2016 lib64

Drwx-. 2 root root 16384 Dec 31 2015 lost+found

Drwxr-xr-x. 2 root root 4096 Nov 1 2011 media

Drwxr-xr-x 2 root root 0 Nov 5 13:13 misc

Drwxr-xr-x. 2 root root 4096 Nov 1 2011 mnt

Drwxr-xr-x 2 root root 0 Nov 5 13:13 net

Drwxr-xr-x. 7 root root 4096 Nov 18 17:32 opt

Drwxrwxr-x 3 ora12c oinstall 4096 Dec 12 09:33 ora12c

Drwxr-xr-x. 7 oracle dba 4096 Jan 20 2016 oradata1

Dr-xr-xr-x 514 root root 0 Nov 5 13:13 proc

Drwxr-xr-x 2 oracle oinstall 20480 Jan 18 21:03 rman_back

Dr-xr-x---. 21 root root 4096 Jan 19 09:10 root

Dr-xr-xr-x. 2 root root 12288 Jul 1 2016 sbin

Drwxr-xr-x. 2 root root 4096 Dec 31 2015 selinux

Drwxr-xr-x. 2 root root 4096 Nov 1 2011 srv

Dr-xr-xr-x 13 root root 0 Nov 5 13:13 sys

Drwxrwxrwt. 10 root root 4096 Jan 19 04:08 tmp

Drwxrwxr-x. 3 grid oinstall 4096 Dec 31 2015 u01

Drwxrwxr-x 3 oracle10g oinstall 4096 Jan 4 2016 u02

Drwxr-xr-x. 13 root root 4096 Dec 31 2015 usr

Drwxr-xr-x. 20 root root 4096 Dec 31 2015 var

Drwxr-xr-x 3 oracle oinstall 4096 Jan 19 09:18 win

[root@se31 /] #

[root@se31 /] # rm-rf win

Rm: cannot remove `win/linux': Device or resource busy

[root@se31 /] #

[root@se31 /] # df-h

Filesystem Size Used Avail Use% Mounted on

/ dev/sdb3 974G 295G 630G 32% /

Tmpfs 48G 21G 27G 43% / dev/shm

/ dev/sdb1 772m 62m 654m 9% / boot

/ dev/sda1 5.0T 4.5T 265G 95% / oradata1

/ / 10.117.196.52/orabak

239g 206G 34G 87% / win/linux

[root@se31 /] #

It seems that the storage directory mounted by the network share cannot be emptied using rm-rf. If Linux really needs to delete the local mount point, you can unmount it first, and then delete the local mount point:

[root@se31 /] # umount / win/linux

[root@se31 /] # df-h

Filesystem Size Used Avail Use% Mounted on

/ dev/sdb3 974G 295G 630G 32% /

Tmpfs 48G 21G 27G 43% / dev/shm

/ dev/sdb1 772m 62m 654m 9% / boot

/ dev/sda1 5.0T 4.5T 265G 95% / oradata1

[root@se31 /] # rm-rf win

[root@se31 /] # ls-l

Total 144

Dr-xr-xr-x. 2 root root 4096 Jul 1 2016 bin

Dr-xr-xr-x. 5 root root 4096 Dec 31 2015 boot

Drwxr-xr-x. 2 root root 4096 Oct 15 2014 cgroup

Drwxr-xr-x 17 root root 3940 Nov 5 13:29 dev

Drwxr-xr-x. 121 root root 12288 Jan 19 09:30 etc

Drwxr-xr-x. 9 root root 4096 Dec 12 09:14 home

Drwxr-xr-x. 13 root root 4096 Jul 1 2016 lib

Dr-xr-xr-x. 9 root root 12288 Jul 1 2016 lib64

Drwx-. 2 root root 16384 Dec 31 2015 lost+found

Drwxr-xr-x. 2 root root 4096 Nov 1 2011 media

Drwxr-xr-x 2 root root 0 Nov 5 13:13 misc

Drwxr-xr-x. 2 root root 4096 Nov 1 2011 mnt

Drwxr-xr-x 2 root root 0 Nov 5 13:13 net

Drwxr-xr-x. 7 root root 4096 Nov 18 17:32 opt

Drwxrwxr-x 3 ora12c oinstall 4096 Dec 12 09:33 ora12c

Drwxr-xr-x. 7 oracle dba 4096 Jan 20 2016 oradata1

Dr-xr-xr-x 553 root root 0 Nov 5 13:13 proc

Drwxr-xr-x 2 oracle oinstall 20480 Jan 18 21:03 rman_back

Dr-xr-x---. 21 root root 4096 Jan 19 09:10 root

Dr-xr-xr-x. 2 root root 12288 Jul 1 2016 sbin

Drwxr-xr-x. 2 root root 4096 Dec 31 2015 selinux

Drwxr-xr-x. 2 root root 4096 Nov 1 2011 srv

Dr-xr-xr-x 13 root root 0 Nov 5 13:13 sys

Drwxrwxrwt. 10 root root 4096 Jan 19 04:08 tmp

Drwxrwxr-x. 3 grid oinstall 4096 Dec 31 2015 u01

Drwxrwxr-x 3 oracle10g oinstall 4096 Jan 4 2016 u02

Drwxr-xr-x. 13 root root 4096 Dec 31 2015 usr

Drwxr-xr-x. 20 root root 4096 Dec 31 2015 var

[root@se31 /] #

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