On Tue, Mar 10, 2015 at 04:41:22PM -0400, Lee Revell wrote: > Hi! > > I am trying to use virt-customize to add packages to an image. > However it seems that there is a problem where a resolv.conf is not > being installed and thus package installation fails. > > The command is: > > virt-customize -v -x -a trusty-server-cloudimg-amd64-disk1.img > --run-command "host openstack.org" > > I am having a hard time gathering complete output as the command > seems to corrupt my terminal somehow but I think the relevant lines > may be: > > [ 3.0] Running: host openstack.org > running command: > exec >>'/tmp/builder.log' 2>&1 > > > host openstack.org > > libguestfs: trace: sh "exec >>'/tmp/builder.log' 2>&1\n\n\nhost > openstack.org\n" > guestfsd: main_loop: new request, len 0x60 > mount --bind /dev /sysroot/dev > mount --bind /dev/pts /sysroot/dev/pts > mount: mount point /sysroot/dev/pts does not exist > mount --bind /proc /sysroot/proc > mount --bind /sys/fs/selinux /sysroot/selinux > mount: mount point /sysroot/selinux does not exist > mount --bind /sys /sysroot/sys > mount --bind /sys/fs/selinux /sysroot/sys/fs/selinux > mount: mount point /sysroot/sys/fs/selinux does not exist > renaming /sysroot/etc/resolv.conf to /sysroot/etc/g1fbx1fs > cp /etc/resolv.conf /sysroot/etc/resolv.conf > cp: cannot stat '/etc/resolv.conf': No such file or directory > /bin/sh -c exec >>'/tmp/builder.log' 2>&1 > > > host openstack.org > > And the command fails due to the missing resolv.conf. > > I am using version 1.28.6 build from source on ubuntu 14.04. The > same image file listed above works perfectly when launched as an > openstack instance.
I'm afraid our handling of /etc/resolv.conf inside the chroot is a large (and continuing) source of problems. Currently this code is run: https://github.com/libguestfs/libguestfs/blob/master/daemon/command.c#L148 There are a couple of thing you could do: - Don't rely too heavily on name resolution. - Use --firstboot* scripts instead, since they genuinely run in guest context, and should therefore work more like you expect. (and I guess a third one .. suggest a better approach to resolv.conf handling). Just for comparison, libguestfs 1.29.29 on Fedora host, plus virt-builder, with a Fedora guest does this: ---------------------------------------------------------------------- $ virt-builder fedora-21 --install /usr/bin/host --run-command "host openstack.org" [ 2.0] Downloading: http://libguestfs.org/download/builder/fedora-21.xz [ 2.0] Planning how to build this image [ 2.0] Uncompressing [ 13.0] Opening the new disk [ 24.0] Setting a random seed [ 24.0] Installing packages: /usr/bin/host [ 49.0] Running: host openstack.org [ 50.0] Setting passwords virt-builder: Setting random password of root to K0kkVIZXdtgmKtvw [ 53.0] Finishing off Output file: fedora-21.img Output size: 4.0G Output format: raw Total usable space: 5.2G Free space: 4.3G (83%) $ guestfish --ro -a fedora-21.img -i Welcome to guestfish, the guest filesystem shell for editing virtual machine filesystems and disk images. Type: 'help' for help on commands 'man' to read the manual 'quit' to quit the shell Operating system: Fedora release 21 (Twenty One) /dev/sda3 mounted on / /dev/sda1 mounted on /boot ><fs> cat /tmp/builder.log [lots of yum output deleted] Installed: bind-utils.x86_64 32:9.9.6-8.P1.fc21 Dependency Installed: bind-libs.x86_64 32:9.9.6-8.P1.fc21 Dependency Updated: bind-libs-lite.x86_64 32:9.9.6-8.P1.fc21 bind-license.noarch 32:9.9.6-8.P1.fc21 Complete! openstack.org has address 162.242.140.107 openstack.org mail is handled by 20 mx2.emailsrvr.com. openstack.org mail is handled by 10 mx1.emailsrvr.com. ---------------------------------------------------------------------- Pino ^^ any ideas? Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones Read my programming and virtualization blog: http://rwmj.wordpress.com virt-top is 'top' for virtual machines. Tiny program with many powerful monitoring features, net stats, disk stats, logging, etc. http://people.redhat.com/~rjones/virt-top _______________________________________________ Libguestfs mailing list [email protected] https://www.redhat.com/mailman/listinfo/libguestfs
