mount

How to write /etc/fstab entry for –bind mounting?

How to write /etc/fstab entry for –bind mounting like mount –bind /home/hadoop/hdfs/store-tmp /home/store/tmp From man 8 mount: Since Linux 2.4.0 it is possible to remount part of the file hierarchy somewhere else. The call is mount –bind olddir newdir or shortoption mount -B olddir newdir or fstab entry is: /olddir /newdir none bind

How to attach and mount Xen DomU’s disk to Dom0

How to attach and mount Xen DomU’s disk to Dom0 To attach phy:vg_xen/vm-10.1.1.228 to xvda on Domain-0: # xm block-attach Domain-0 phy:vg_xen/vm-10.1.1.228 xvda w Mount the new partition /dev/xvda2 to /mnt/xvda2: # mount /dev/xvda2 /mnt/xvda2 After finishing using the partition, umount it and detach it: # umount /mnt/xvda2/ # xm block-detach Domain-0 xvda

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Forcing Linux to Unmount a Filesystem Reporting “device is busy”

Linux may report “device is busy” when we try to umount a filesystem. This behavior is reasonable as it can help us avoid data loss by disallowing unmouting a filesystem when it is being used. But for situations when we are sure there is something wrong happened or we care not data lost such as…

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How to Get Available Filesystem Space on Linux: a C Function with a C++ Example

It is common for programs to write to files in filesystems on disks. However, what if the disk was almost full when your program writes to the filesystem on a disk? For systems software and mission critical programs, it is a better or must-to-do practice to check the available filesystem space before actually writing to…

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Controlling Filesystem Mounting on Linux using /etc/fstab

Controlling the mounting of filesystems is a useful technique for managing Linux systems. The mounting configurations are mostly in the /etc/fstab file. In this post, we will discuss 2 common and useful techniques for controlling the filesystem mounting by playing with the /etc/fstab file: allowing non-root users to mount/unmount filesystems and avoiding mounting failures blocking…

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How to Play Movie from Remote Host using MPlayer over SSH

MPlayer is a great movie player. SSH is a great tool to connect and transfer data over the network securely. Combining these 2 great tools together will be greater. You may already has a small server storing some movies or videos or music and playing them on your laptop will be convenient. In this post,…

Unified Linux Login and Home Using OpenLDAP and NFS

In this post, how to unified Linux login and home directory using OpenLDAP and NFS/automount will be introduced. 0. System environment This solution is tested on Fedora 12 systems and CentOS 5. LDAP and NFS server: IP: 10.0.0.2 OS: Fedora 12 x86_64 ldap base dn: “dc=lgcpu1″ Clients: IP: 10.0.0.1/24 OS: Fedora 12 x86_64 1. LDAP…