In some cases, we need to mount disk image to modify O/S files. Let’s review the Mount Disk Image (*.img) File on Linux.
There are many cases I used and remember one of them during the ODA VM Cloning process to get zero down time I change the IP configuration to not get IP conflict.
Mount Disk Image (*.img) File on Linux
Here is the steps
[root@ittutorial test]# losetup -f /dev/loop0 [root@ittutorial test]# losetup /dev/loop0 System.img [root@ittutorial test]# kpartx -a /dev/loop0 [root@ittutorial test]# vgscan Reading all physical volumes. This may take a while... Found volume group "vg_crpapp" using metadata type lvm2 [root@ittutorial test]# vgchange -ay vg_crpapp 2 logical volume(s) in volume group "vg_crpapp" now active [root@ittutorial test]# ls -lrt /dev/mapper/vg_crpapp* brw-rw---- 1 root disk 252, 67 Nov 5 16:32 /dev/mapper/vg_crpapp-lv_swap brw-rw---- 1 root disk 252, 66 Nov 5 16:32 /dev/mapper/vg_crpapp-lv_root [root@ittutorial test]# mkdir /image [root@ittutorial test]# mount /dev/mapper/vg_crpapp-lv_root /CRP2/ vi /etc/sysconfig/network-scripts/ifcfg-eth0 TYPE=Ethernet BOOTPROTO=none IPADDR=1.1.1.2 PREFIX=24 GATEWAY=1.1.1.1 DEFROUTE=yes IPV4_FAILURE_FATAL=yes IPV6INIT=no NAME="eth0" UUID=60ba15ca-4460-40bf-9ae5-c041539f83ad ONBOOT=yes DEVICE=eth0 USERCTL=no LAST_CONNECT=1471983821
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