[SOLVED] Problem with chroot

travis82 · 12-19-2017, 11:35 AM

Hi

I'm trying to upgrade Debian sid from Slackware using chroot. Here is the set of commands that I use:

Code:

mount /sid
mount --bind /proc /sid/proc
mount --bind /sys /sid/sys
mount --bind /dev /sid/dev
mount --bind /dev/pts /sid/dev/pts
chroot /sid

It seems that doesn't have access to my internet connection. Here is the output:

Code:

Err:1 http://debian.asis.io/debian sid InRelease
  Temporary failure resolving 'debian.asis.io'
Reading package lists... Done                                      
Building dependency tree       
Reading state information... Done
1 package can be upgraded. Run 'apt list --upgradable' to see it.
W: Failed to fetch http://debian.asis.io/debian/dists/sid/InRelease  Temporary failure resolving 'debian.asis.io'
W: Some index files failed to download. They have been ignored, or old ones used instead.

Is there any other directory that should be mounted before chroot command?

stormtracknole · 12-19-2017, 11:48 AM

Quote:

Originally Posted by travis82

Hi

I'm trying to upgrade Debian sid from Slackware using chroot. Here is the set of commands that I use:

Code:

mount /sid
mount --bind /proc /sid/proc
mount --bind /sys /sid/sys
mount --bind /dev /sid/dev
mount --bind /dev/pts /sid/dev/pts
chroot /sid

It seems that doesn't have access to my internet connection. Here is the output:

Code:

Err:1 http://debian.asis.io/debian sid InRelease
  Temporary failure resolving 'debian.asis.io'
Reading package lists... Done                                      
Building dependency tree       
Reading state information... Done
1 package can be upgraded. Run 'apt list --upgradable' to see it.
W: Failed to fetch http://debian.asis.io/debian/dists/sid/InRelease  Temporary failure resolving 'debian.asis.io'
W: Some index files failed to download. They have been ignored, or old ones used instead.

Is there any other directory that should be mounted before chroot command?

Copy your /etc/resolv.conf into your /sid/etc/ directory. That's what I do for my Slackware boxes.

travis82 · 12-19-2017, 11:54 AM

Quote:

Originally Posted by stormtracknole

Copy your /etc/resolv.conf into your /sid/etc/ directory. That's what I do for my Slackware boxes.

Worked, many thanks. Is this work for Slackware when I am on Debian too?

stormtracknole · 12-19-2017, 12:20 PM

Quote:

Originally Posted by travis82

Worked, many thanks. Is this work for Slackware when I am on Debian too?

Correct! It will work. However, I wrote this script because Slackware expects for certain things to run at boot, which obviously don't occur when using chroot. From the bits and pieces of things that I have found online, I came up with something like this:

Code:

#!/bin/bash

# These GTK+/pango files need to be kept up to date for
# proper input method, pixbuf loaders, and font support.
if [ -x /usr/bin/update-gtk-immodules ]; then
  echo "Updating gtk.immodules:"
  echo "  /usr/bin/update-gtk-immodules &"
  /usr/bin/update-gtk-immodules > /dev/null 2>&1 &
fi
if [ -x /usr/bin/update-gdk-pixbuf-loaders ]; then
  echo "Updating gdk-pixbuf.loaders:"
  echo "  /usr/bin/update-gdk-pixbuf-loaders &"
  /usr/bin/update-gdk-pixbuf-loaders > /dev/null 2>&1 &
fi
if [ -x /usr/bin/update-pango-querymodules ]; then
  echo "Updating pango.modules:"
  echo "  /usr/bin/update-pango-querymodules &"
  /usr/bin/update-pango-querymodules > /dev/null 2>&1 &
fi
if [ -x /usr/bin/glib-compile-schemas ]; then
  echo "Compiling GSettings XML schema files:"
  echo "  /usr/bin/glib-compile-schemas /usr/share/glib-2.0/schemas &"
  /usr/bin/glib-compile-schemas /usr/share/glib-2.0/schemas >/dev/null 2>&1 &
fi

update-ca-certificates -f

ldconfig

I run that script as soon as I chroot.sh into my environment as root. I know that for sure you need to run update-ca-certificates -f because otherwise, wget will complain about https certificates. An annoying problem if you are building packages inside your chroot.

travis82 · 12-19-2017, 01:33 PM

No, it didn't work for Slackware. I tried your script too. Slackware couldn't access to internet from Debian.

stormtracknole · 12-19-2017, 01:44 PM

Quote:

Originally Posted by travis82

No, it didn't work for Slackware. I tried your script too. Slackware couldn't access to internet from Debian.

Wait, so the host is Debian or Slackware? Something that I have different from you, but not sure that it matters is:

Code:

mount -t proc /proc /sid/proc

Did you make sure that /etc/resolv.conf was copied correctly? You can manually edit it to test things around. I have to say that I have never tested my chroot setup under a different OS other than Slackware. So, quite possibly, Debian could be doing something different with networking.

travis82 · 12-19-2017, 02:10 PM

It works for chrooting to Debian but not vice versa. However, I barely touch that Debian partition, so by your instruction I can upgrade it from Slackware. Thanks again.