PRoot experiments

[Alexander Smirnov <asmirnov@ilbers.de>]

Hi all,

I've performed several experiments with PRoot:

1. Generate multistrap filesystem:

As reference I've used the following resource:
https://github.com/josch/polystrap/blob/master/polystrap.sh

So, I was able to run the following command without root permissions:

$ PROOT_NO_SECCOMP=1 proot -0 /usr/sbin/multistrap -f multistrap.conf -d 
test

After this command execution I have 'test' folder which looks quite 
similar to one, generated with sudo (at least 'du -sm' is the same).

2. Run commands in PRoot chroot:

I'm successfully able to run PRoot chroot for various architectures:

$ PROOT_NO_SECCOMP=1 proot -0 -r ./test /bin/bash

Also I was able to run: 'dpkg --configure -a' in these chroots.

3. Mount of various work folders:

Mount forlder using PRoot seems also works good:

$ PROOT_NO_SECCOMP=1 proot -0 -b /proc -b /dev -r ./test /bin/bash

And in this chroot I have /proc and /dev mounted.


So, my brief conclusion is: PRoot could be a good option for Isar. It 
seems that it's designed to support exact features that are required for 
Isar. :-)

I'd like to try to implement simple PoC to test if *.deb package could 
be generated in Isar without 'sudo'.

BTW: PRoot is a part of standard Debian, so it could be installed via 
'apt-get', no custom repos required.

-- 
With best regards,
Alexander Smirnov