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xen-users
[Xen-users] Re: changing hostname in a chroot [was: changing settings]
Anand wrote:
mount -o loop centos.img /mnt/disk
Now i did a chroot to /mnt/disk and executed hostname -v xyz.test.com
<http://xyz.test.com> and exited from it.
The hostname changed inside the image, however it also changed for the
host machine. I am confused here, after doing a chroot, shouldn't the
hostname change only inside the chrooted image ? and not on the host
machine ? Any help would be appreciated.
The hostname command doesn't make any changes to the disk; rather, it
only tells the running system what its hostname is.
Since you're using the same system (the same kernel) whether or not
you're in the chroot, running hostname inside a chroot is going to have
the same impact as running hostname outside your chroot.
If you want to actually change the hostname for your CentOS image, find
the configuration files in /etc used by CentOS to store the hostname,
and change those with the editor of your choice.
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