umount /chrootedpath /dev/pts after several chroot(s): target is busy
The "target is busy" error when trying to unmount a chroot environment, specifically `/dev/pts`, indicates that there are still processes or files using the chroot environment, and it cannot be unmounted until they are released. To resolve this issue, follow these steps: 1. **Identify Processes**: First, you need to identify the processes that are using the chroot environment. You can use the `fuser` or `lsof` command to find these processes. Using `fuser`: ```bash sudo fuser -v /chrootedpath ``` Using `lsof`: ```bash sudo lsof | grep /chrootedpath ``` This will give you a list of processes that are currently accessing the chroot environment. 2. **Stop or Kill Processes**: You may need to stop or kill the processes that are using the chroot environment. Be careful with this step, as forcefully killing processes can lead to data loss or instability. To stop a specific process using `SIGTERM` (15), you can use the `kill` command: ```bash