Re: `jq` won't chroot?
On 2021-07-17, Kent Watsen wrote: > Thanks Theo! > > >> It seems you copied libjq and libonig into usr/local/lib in the chroot. >> By default, ld.so only looks for shared objects in /usr/lib, so it can't >> find them. >> >> # env LD_LIBRARY_PATH=/usr/lib:/usr/local/lib chroot /var/www >> /usr/local/bin/jq --version >> >> should work. > > Indeed it did. Shorter: > > env LD_LIBRARY_PATH='/usr/local/lib:$LD_LIBRARY_PATH' /usr/local/bin/jq > --version > > >> Chrooting to / works because rc(8) runs ldconfig(8) to add >> /usr/local/lib and /usr/X11R6/lib if they're present. >> >> You can copy all the libraries into /var/www/usr/lib, you can set >> LD_LIBRARY_PATH=/usr/local/lib:/usr/, or you can run ldconfig in the >> chroot. >> >> Read ld.so(1) and ldconfig(8)for more details. > > Yes, setting `ldconfig -n /usr/local/lib` is a more sticky option. > > The `env` approach seems best when just one `jq` command, whereas the > `ldconfig` approach seems better when there is more than one `jq` command... Copying the various libraries to /var/www/usr/lib is pretty straightforward. Remember they might need updating, I copy them from rc.local so I don't forget.
Re: `jq` won't chroot?
Thanks Theo! > It seems you copied libjq and libonig into usr/local/lib in the chroot. > By default, ld.so only looks for shared objects in /usr/lib, so it can't > find them. > > # env LD_LIBRARY_PATH=/usr/lib:/usr/local/lib chroot /var/www > /usr/local/bin/jq --version > > should work. Indeed it did. Shorter: env LD_LIBRARY_PATH='/usr/local/lib:$LD_LIBRARY_PATH' /usr/local/bin/jq --version > Chrooting to / works because rc(8) runs ldconfig(8) to add > /usr/local/lib and /usr/X11R6/lib if they're present. > > You can copy all the libraries into /var/www/usr/lib, you can set > LD_LIBRARY_PATH=/usr/local/lib:/usr/, or you can run ldconfig in the > chroot. > > Read ld.so(1) and ldconfig(8)for more details. Yes, setting `ldconfig -n /usr/local/lib` is a more sticky option. The `env` approach seems best when just one `jq` command, whereas the `ldconfig` approach seems better when there is more than one `jq` command... Thanks! K.
Re: `jq` won't chroot?
On Fri, Jul 16, 2021 at 10:24:10PM +, Kent Watsen wrote: > I’ve spent a few hours on this and am lost. I have plenty experience moving > executables into a chroot environments, but `jq` is proving to be > exceptionally difficult. > > The executable is found when chrooted to ‘/‘ but not ' /var/www’. Yes, of > course I copied all the files referenced from `ldd` into the chroot, and set > their file permissions to 777 (and likewise all the parent directories): > > # pkg_add jq > > # chroot / /usr/local/bin/jq --version > jq-1.6 > > *** COPY `ldd /usr/local/bin/jq` DEPENDENCIES INTO /var/www/ HERE *** > > # chroot /var/www /usr/local/bin/jq --version > ld.so: jq: can't load library 'libonig.so.7.1’ > > > Any ideas? It seems you copied libjq and libonig into usr/local/lib in the chroot. By default, ld.so only looks for shared objects in /usr/lib, so it can't find them. # env LD_LIBRARY_PATH=/usr/lib:/usr/local/lib chroot /var/www /usr/local/bin/jq --version should work. Chrooting to / works because rc(8) runs ldconfig(8) to add /usr/local/lib and /usr/X11R6/lib if they're present. You can copy all the libraries into /var/www/usr/lib, you can set LD_LIBRARY_PATH=/usr/local/lib:/usr/, or you can run ldconfig in the chroot. Read ld.so(1) and ldconfig(8) for more details.
Re: `jq` won't chroot?
Easy button for putting all the dependency files into the chroot:
# for f in `ldd /usr/local/bin/jq | grep '0' | awk '{print $7}'`; do
d=`dirname $f | sed 's#^/##’`
mkdir -p /var/www/$d
cp $f /var/www/$d/
done
K.
> On Jul 16, 2021, at 6:24 PM, Kent Watsen wrote:
>
> I’ve spent a few hours on this and am lost. I have plenty experience moving
> executables into a chroot environments, but `jq` is proving to be
> exceptionally difficult.
>
> The executable is found when chrooted to ‘/‘ but not ' /var/www’. Yes, of
> course I copied all the files referenced from `ldd` into the chroot, and set
> their file permissions to 777 (and likewise all the parent directories):
>
> # pkg_add jq
>
> # chroot / /usr/local/bin/jq --version
> jq-1.6
>
> *** COPY `ldd /usr/local/bin/jq` DEPENDENCIES INTO /var/www/ HERE ***
>
> # chroot /var/www /usr/local/bin/jq --version
> ld.so: jq: can't load library 'libonig.so.7.1’
> Killed
>
> Any ideas?
>
> K.
>
`jq` won't chroot?
I’ve spent a few hours on this and am lost. I have plenty experience moving executables into a chroot environments, but `jq` is proving to be exceptionally difficult. The executable is found when chrooted to ‘/‘ but not ' /var/www’. Yes, of course I copied all the files referenced from `ldd` into the chroot, and set their file permissions to 777 (and likewise all the parent directories): # pkg_add jq # chroot / /usr/local/bin/jq --version jq-1.6 *** COPY `ldd /usr/local/bin/jq` DEPENDENCIES INTO /var/www/ HERE *** # chroot /var/www /usr/local/bin/jq --version ld.so: jq: can't load library 'libonig.so.7.1’ Any ideas? K.
