Package: debootstrap Version: 1.0.46 Severity: wishlist I patched debootstrap in order to add a new variant base on PRoot.
If you don't know PRoot, it's a user space implementation of chroot, mount --bind and binfmt_misc based on PTrace. It's a really useful tool for playing with rootfs while staying in user mode (non-root). For instance we use it to test software in different distributions environment (debian, ubuntu, fedora, slackware, ...) without the need to run a full virtual machine. For this reason, I patched debootstrap so it can create a rootfs using PRoot. This rootfs is then used for validating software in debian environment. Be careful that this new rootfs will not have the normal rights (root:root for /bin for instance) and should only be used for testing (with chroot or PRoot). For more information about the usage of PRoot, you can look at two article that I wrote about it: * http://ivoire.dinauz.org/blog/post/2012/04/16/PRoot-sorcery * http://ivoire.dinauz.org/blog/post/2012/05/04/Making-VLC-at-home This patch only works for sid. I will modify the other target when needed. Rgds
>From 65a171af12f3f8749a778a6074fa0eb2c44d94b0 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?R=C3=A9mi=20Duraffort?= <remi.duraff...@st.com> Date: Thu, 17 Jan 2013 09:58:44 +0100 Subject: [PATCH] Add a new variant based on PRoot With this new variant, a non-root user can create a debian/ubuntu rootfs. This is really usefull for testing. For instance, one can now create rootfs for different versions of debian and ubuntu and run the test suite of a software inside each rootfs. More information on PRoot at http://proot.me and the link to documentation and tutorials. --- debootstrap | 14 ++++++++++---- functions | 6 ++++++ scripts/sid | 10 +++++++--- 3 files changed, 23 insertions(+), 7 deletions(-) diff --git a/debootstrap b/debootstrap index f336164..613b41e 100755 --- a/debootstrap +++ b/debootstrap @@ -99,7 +99,7 @@ usage() archive --variant=X use variant X of the bootstrap scripts (currently supported variants: buildd, fakechroot, - scratchbox, minbase) + scratchbox, minbase, proot) --keyring=K check Release files against keyring K --no-check-gpg avoid checking Release file signatures --no-resolve-deps don't try to resolve dependencies automatically @@ -450,6 +450,8 @@ elif doing_variant scratchbox; then done [ "x$SB2_TARGET" != "x" ] || error 1 SBOXTARGETREQ "No scratchbox target configured for $TARGET" CHROOT_CMD="sb2 -eR -t $SB2_TARGET" +elif doing_variant proot; then + CHROOT_CMD="proot -v -1 -0 -b /dev -b /sys -b /proc -b /tmp $TARGET" else CHROOT_CMD="chroot $TARGET" fi @@ -466,10 +468,12 @@ export ARCH SUITE TARGET CHROOT_CMD SHA_SIZE DEBOOTSTRAP_CHECKSUM_FIELD if am_doing_phase first_stage second_stage; then if in_path id && [ `id -u` -ne 0 ]; then - error 1 NEEDROOT "debootstrap can only run as root" + if ! doing_variant proot; then + error 1 NEEDROOT "debootstrap can only run as root" + fi fi # Ensure that we can create working devices and executables on the target. - if ! check_sane_mount "$TARGET"; then + if ! doing_variant proot && ! check_sane_mount "$TARGET"; then error 1 NOEXEC "Cannot install into target '$TARGET' mounted with noexec or nodev" fi fi @@ -619,7 +623,9 @@ if am_doing_phase first_stage; then if ! am_doing_phase second_stage; then cp "$0" "$TARGET/debootstrap/debootstrap" cp $DEBOOTSTRAP_DIR/functions "$TARGET/debootstrap/functions" - cp $DEBOOTSTRAP_DIR/devices.tar.gz "$TARGET/debootstrap/devices.tar.gz" + if ! doing_variant proot; then + cp $DEBOOTSTRAP_DIR/devices.tar.gz "$TARGET/debootstrap/devices.tar.gz" + fi cp $SCRIPT "$TARGET/debootstrap/suite-script" echo "$ARCH" >"$TARGET/debootstrap/arch" echo "$SUITE" >"$TARGET/debootstrap/suite" diff --git a/functions b/functions index c1e938e..eba40c1 100644 --- a/functions +++ b/functions @@ -1036,6 +1036,12 @@ setup_devices () { return 0 fi + if doing_variant proot; then + # No need to do anything fo the /dev directory in the target + # filesystem. PRoot will mirror the host /dev to be the target /dev. + return 0 + fi + case "$HOST_OS" in kfreebsd*) in_target mount -t devfs devfs /dev ;; diff --git a/scripts/sid b/scripts/sid index 893d5d5..e34870f 100644 --- a/scripts/sid +++ b/scripts/sid @@ -1,7 +1,7 @@ mirror_style release download_style apt finddebs_style from-indices -variants - buildd fakechroot minbase scratchbox +variants - buildd fakechroot minbase scratchbox proot keyring /usr/share/keyrings/debian-archive-keyring.gpg if doing_variant fakechroot; then @@ -22,7 +22,7 @@ work_out_debs () { #required="$required $(get_debs Priority: important)" # ^^ should be getting debconf here somehow maybe base="$(get_debs Priority: important)" - elif doing_variant buildd || doing_variant scratchbox; then + elif doing_variant buildd || doing_variant scratchbox || doing_variant proot; then base="apt build-essential" elif doing_variant minbase; then base="apt" @@ -44,7 +44,9 @@ first_stage_install () { setup_etc if [ ! -e "$TARGET/etc/fstab" ]; then echo '# UNCONFIGURED FSTAB FOR BASE SYSTEM' > "$TARGET/etc/fstab" - chown 0:0 "$TARGET/etc/fstab"; chmod 644 "$TARGET/etc/fstab" + if ! doing_variant proot; then + chown 0:0 "$TARGET/etc/fstab"; chmod 644 "$TARGET/etc/fstab" + fi fi x_feign_install () { @@ -81,6 +83,8 @@ second_stage_install () { setup_proc_fakechroot elif doing_variant scratchbox; then true + elif doing_variant proot; then + true else setup_proc in_target /sbin/ldconfig -- 1.8.0.3
