Install a package forcefully in Linux
Before installing a package forcefully, first
understand a situation where we need this force option.
Let me corrupt one command and show you how to
install it's package forcefully.
First check the package of the command we are going
to corrupt. Let say mount command.
#
which mount
#
rpm -qf /bin/mount
|
[root@linuxelearn
Packages]# which mount
/bin/mount
[root@linuxelearn
Packages]# rpm -qf /bin/mount
util-linux-ng-2.17.2-6.el6.x86_64
[root@linuxelearn
Packages]#
|
Okey, so we know the package of mount let's copy
other commands content over mount command. Let copy date commands contents over
mount command.
#cp
/bin/date /bin/mount
|
[root@linuxelearn
Packages]# cp /bin/date /bin/mount
cp:
overwrite `/bin/mount'? y
[root@linuxelearn
Packages]#
|
Now when you run mount command it will show Date,
that means it is corrupted.
|
[root@linuxelearn
Packages]# mount
Tue
Mar 14 22:59:43 IST 2017
[root@linuxelearn
Packages]# date
Tue
Mar 14 22:59:49 IST 2017
[root@linuxelearn
Packages]#
|
So to fix the mount command we need to reinstall
it's package, let's install the package and check whether mount command is
fixed or not. Move to the folder where you kept the package and install it.
#rpm
-ivh util-linux-ng...
|
[root@linuxelearn
Packages]# rpm -ivh util-linux-ng-2.17.2-6.el6.x86_64.rpm
warning:
util-linux-ng-2.17.2-6.el6.x86_64.rpm: Header V3 RSA/SHA256 Signature, key ID
fd431d51: NOKEY
Preparing...
########################################### [100%]
package
util-linux-ng-2.17.2-6.el6.x86_64 is already installed
[root@linuxelearn
Packages]#
|
It says the package already install, check by using
mount command whether it is working fine.
|
[root@linuxelearn
Packages]# mount
Tue
Mar 14 23:03:41 IST 2017
[root@linuxelearn
Packages]#
|
opps...! It isn't fixed yet, now in such to force
the installation to be done, the syntax is
#rpm
-ivh <package name> -- force
#rpm
-ivh util-linux-ng...
|
[root@linuxelearn
Packages]# rpm -ivh util-linux-ng-2.17.2-6.el6.x86_64.rpm --force
warning:
util-linux-ng-2.17.2-6.el6.x86_64.rpm: Header V3 RSA/SHA256 Signature, key ID
fd431d51: NOKEY
Preparing...
########################################### [100%]
1:util-linux-ng ###########################################
[100%]
[root@linuxelearn
Packages]#
|
Okay then we have not only installed package
successfully but we have also fixed the command. Congratulations.
Now we run the mount command check output.
|
[root@linuxelearn
Packages]# mount
/dev/sda2
on / type ext4 (rw)
oproc
on /proc type proc (rw)
sysfs
on /sys type sysfs (rw)
devpts
on /dev/pts type devpts (rw,gid=5,mode=620)
tmpfs
on /dev/shm type tmpfs
(rw,rootcontext="system_u:object_r:tmpfs_t:s0")
/dev/sda1
on /boot type ext4 (rw)
none
on /proc/sys/fs/binfmt_misc type binfmt_misc (rw)
sunrpc
on /var/lib/nfs/rpc_pipefs type rpc_pipefs (rw)
gvfs-fuse-daemon
on /root/.gvfs type fuse.gvfs-fuse-daemon (rw,nosuid,nodev)
/dev/sr0
on /media/RHEL_6.0 x86_64 Disc 1 type iso9660 (ro,nosuid,nodev,uhelper=udisks,uid=0,gid=0,iocharset=utf8,mode=0400,dmode=0500)
/dev/sdb
on /media/XIAOMI type iso9660
(ro,nosuid,nodev,uhelper=udisks,uid=0,gid=0,iocharset=utf8,mode=0400,dmode=0500)
[root@linuxelearn
Packages]#
|
This is step by step solution of install package
forcefully.
I
Hope You Enjoyed reading This articule…..