I have a machine currently running Ubuntu 16.04 amd64 that holds a lot of chroots used to do cross-platform embedded Linux builds. Rather than updating the host /etc/fstab as a lot of howtos suggest, I have start-up scripts that look like this:
and the appropriate entry in /etc/schroot/schroot.conf
This lets me start the right chroot to modify / build embedded Linux board support package binaries as needed. This has worked great, until I recently needed to work with a device that needed me to download images from a tftpboot directory.

I created chroots/trusty_i386/tftpboot, and as seen in the sample above, had the script mount it. But unlike /tmp and /home/exskewsme, which see my host directories, it can't see the host /tftpboot directory. Instead, it keeps a local /tftpboot directory; everything I copy into it within the chroot is present, but it's not in the /tftpboot directory when I exit the chroot. Running mount in the chroot does not show the /tftpboot directory being mounted, so at least it's consistent.

I tried using a /xxx directory and saw the same result. I also tried using /chroots as my chroot root directory instead of /home/exskewsme/chroots, in case I had some cyclic definition problem. That didn't change things either. The mount command itself shows the contents of host /tftpboot being in .../trusty_i386/tftpboot prior to entering the chroot. The only thing that's clear for me right now is that I must be misunderstanding something.

My goal is to have the host provide tftpboot services with files that are added to it within the chroot... preferably without modifying host system files like /etc/fstab. I'd like to do that with a host directory instead of by running a tftp server in the chroot. If anyone can help me with that I'd appreciate it.

Thanks for reading.

Some information on what host etc you are using would be nice, also thread really need to go in the general programming forum or the forum specific to your host, this forum is really for LFS problems, ask a mod to move this thread to somewhere more appropriate.

1 members found this post helpful.

Thanks... I didn't take Linux From Scratch literally enough and didn't realize it was a specific project. I looked for ways to contact a mod and haven't found an appropriate one so far, do you know how I'd do that?

Just use the "Report" button at the bottom of the thread/post, good luck!

1 members found this post helpful.

Is this too complicated to answer, or too silly to answer? I'm getting into doing a telnet script to get the files from the chroot to the host tftp directory, which seems like overkill.