GNU/Linux Change root (chroot) Manually changing root in a directory
Example
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Ensure you met all requirements, as per Requirements
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Mount the temporary API filesystems:
cd /location/of/new/root mount -t proc proc proc/ mount --rbind /sys sys/ mount --rbind /dev dev/ mount --rbind /run run/ (optionally)
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If you need to use an internet connection in the chroot environment, copy over the DNS details:
cp /etc/resolv.conf etc/resolv.conf -
Change root into /location/of/new/root, specifying the shell (
/bin/bashin this example):chroot /location/of/new/root /bin/bash -
After chrooting it may be necessary to load the local bash configuration:
source /etc/profile source ~/.bashrc -
Optionally, create a unique prompt to be able to differentiate your chroot environment:
export PS1="(chroot) $PS1" -
When finished with the chroot, you can exit it via:
exit -
Unmount the temporary file systems:
cd / umount --recursive /location/of/new/root
