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/bin/ls: reading directory .: Input/output error
The above error indicate that i cannot access to the specific file on Linux, Delete not working. with root user as well.
so the error is not a problem to delete files, it’s a problem about the file system itself and/or an hardware problem, but before announce that it’s hardware issue 🙂 try the below solution :-
use command dmesg.
(display message or driver message) is a command on most Linux- and Unix-based operating systems that prints the message buffer of the kernel. Read about that command here
Option #2 ( worked for me)
Use Fsck command to detect filesystem error and fix it.
Edit the files /etc/vsftpd.ftpusers and /etc/vsftpd.user_list looks like :
# List of users denied access to the FTP server, see ftpusers(4).
and remove root user from each file.
You can control ftp as services from
chkconfig libvirtd on
service libvirtd start
Also you can enable it or check the status for libvirtd by :
But After finishing KVM installation and see everything is working fine i knew its deserve every moments . I believe in what they say now ” Never Give Up ” . I posting this article today for the people who wants to learn something new. And if you face any problem you can contact me here, I Wrote this because there’s no much information about the package that you should install while you are working on Virtualization But Hope you will find this useful.
you can install the package from Redhat Media , some Package will Generate what called Package Dependency , You will start searching for missing Package on media with same name as appear to you . its waste of time , i will post under this topic the most important package that you need to install to avoid this error.
Some Other Information you need to know To Check If KVM Support :
Solution One Using :
/proc/cpuinfo , the output :
The flags to look out for are:
vmx— Intel VT-x, basic virtualization
svm— AMD SVM, basic virtualization
ept— Extended Page Tables, an Intel feature to make emulation of guest page tables faster.
vpid— VPID, an Intel feature to make expensive TLB flushes unnecessary when context switching between guests.
npt— AMD Nested Page Tables, similar to EPT.
flexpriority— Intel feature that reduces calls into the hypervisor when accessing the Task Priority Register, which helps when running certain types of SMP guests.
vnmi— Intel Virtual NMI feature which helps with certain sorts of interrupt events in guests.
Solution Two :
dmesg | less
The two messages to look out for are:
kvm: no hardware support and
kvm: disabled by bios
To load KVM:
Package that you need to install (Sorted) :
Some Other package you need to install for avoiding dependency error :
If you need to Run convirt install the below package also (Sorted) :
Hi all ,
its taking long time for me to write new blog , any way in this article i am gonna talk about how to install oracle EBS on Linux – 64 V5 update 4, take in your consideration there’s no difference oracle ebs installation step,the difference is changing is the prerequisites for platforms .
you can check the prerequisites on meta-link DOC [ID 761566.1]
i will post link in the bottom of this article .
Before we begin the wild ride, there a few modifications that needs to be done to the system, a few packages need to be installed. I’ll assume that you have searched for quite a while and maybe you even tried to install the damn thing and ran into errors, so I’ll get right into the process. Here what we’re going to do:
1-install Development Tools
there’s easy way and hard way i prefer hard way since easy way take space on system and some package not needed for oracle
Easy way :
|Hard Way :
you need to check every package on OS if its installed or not
Additionally, the following RPMs are required for an 11gR1 Database (which is bundled with the 12.1.1 release) on the database tier:
Check Package by command : rpm -qa | grep “package name”
rpm -qa | grep kernel-headers
if its installed the name of package will appear as result but if its not you need to install like the following :
rpm -ivh “package name that you need to install”.
* after install package called ” openmotif” you need to make the following command :
ln -s /usr/X11R6/lib/libXtst.so.6.1 /usr/lib/libXtst.so.6
Open /etc/sysctl.conf as root
then add the following lines at the end of the file :
#Oracle EBS R12.1.1 Kernel Settings
kernel.shmall = 2097152
kernel.shmmax = 4294967295
kernel.shmmni = 4096
kernel.sem = 256 32000 100 142
-max = 327679
net.ipv4.ip_local_port_range = 10000 65000
net.core.wmem_max=4194304Now lets apply the new settings
/sbin/sysctl –pAdd the following lines to the /etc/security/limits.conf file:
* hard nofile 65535
* soft nofile 4096
* hard nproc 16384
* soft nproc 2047Add the following lines to the /etc/resolv.conf file:
we need two Groups : groupadd oinstall groupadd dba
useradd -g oinstall -G dba oracle
useradd -g oinstall -G dba apps
Create Oracle Base Folder
mkdir -p /u01/oracle/PROD
chown -R oravis:oinstall /u01
chmod -R 775 /u01/
Before installation make sure all media (STAGE) owned by Oracle:oinstall and permission is 775 .
before installation you need to change permission for
./rapidwiz like Following
chmod u+x STAGE_PATH/startCD/DISK1/rapidwiz/
Apply patch number 6078836 before installation becuase if you don’t the Post installation check will fail on HTTP error : RW-50015 , you find this patch in the bottom .
Start the installation and Good luck :
If you need patch or any thing please contact me here .