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  1. [ubuntu] Re: Can't link to files in /usr/bin, but can copy

    Silly me, of course it is, since ownership & permission info is in the inode, not the directory entry...!
  2. [ubuntu] Re: Can't link to files in /usr/bin, but can copy

    You can also use mount -bind for /lib, /lib64, /dev and /proc.
  3. [ubuntu] Re: Can't link to files in /usr/bin, but can copy

    Oops. Couldn't see reply #11 and assumed I'd forgotten to hit submit, so posted again #12. Is there a way to delete messages here?
  4. [ubuntu] Re: Can't link to files in /usr/bin, but can copy

    The problem that this is inefficient when you're dynamically creating sandboxes (as I am) and you have to copy the files into each one. My workaround is to copy the files I need into a directory...
  5. [ubuntu] Re: Can't link to files in /usr/bin, but can copy

    Which is very inefficient if you're setting up sandboxes dynamically, as I am. Linking is much faster and more efficient.

    As I said, my workaround is to make copies of all the necessary files in a...
  6. [ubuntu] Re: Can't link to files in /usr/bin, but can copy

    Symbolic links won't work from inside a chroot jail.
  7. [ubuntu] Re: Can't link to files in /usr/bin, but can copy

    This doesn't help because (a) I don't want to use sudo (or setuid root!) to run the script to create my sandboxes, and (b) I have r-x access to everything in /usr/bin and write access to the...
  8. [ubuntu] Re: Can't link to files in /usr/bin, but can copy

    /usr/bin and the directory under /home where my sandboxes go are both within the root directory mounted on /dev/sda5 according to df.
  9. [ubuntu] Can't link to files in /usr/bin, but can copy

    On Ubuntu 20.04, I am trying to create hard links to some essential tools in /usr/bin for use inside a chroot jail. When I try, I get an "Operation not permitted" error. My current workaround is to...
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