NAME¶

mk-sbuild - creates chroots via schroot and sbuild

SYNOPSIS¶

mk-sbuild [options...] <release>

DESCRIPTION¶

mk-sbuild creates chroots via schroot and sbuild.

OPTIONS¶

Listed below are the command line options for mk-sbuild:

--arch=ARCH

What architecture to select (defaults to the native architecture).

--target=ARCH

Set up the chroot as a cross-building environment targeting the specified architecture.

--name=NAME

Base name for the schroot (arch is appended).

--personality=PERSONALITY

What personality to use (defaults to match --arch).

--debug

Turn on script debugging.

--skip-updates

Do not include the -updates pocket in the installed sources.list.

--skip-proposed

Do not include the -proposed pocket in the installed sources.list.

--source-template=FILE

Use FILE as the sources.list template (defaults to $HOME/.mk-sbuild.sources).

--debootstrap-mirror=URL

Use URL as the debootstrap source (defaults to http://ports.ubuntu.com where appropriate, official Ubuntu repositories for the supported architectures).

--debootstrap-include=alpha,beta

Pass along a comma separated list of packages to debootstrap's --include argument. See debootstrap (8) for more details.

--debootstrap-exclude=alpha,beta

Pass along a comma separated list of packages to debootstrap's --exclude argument. WARNING: be careful using this option as you can end up excluding essential package. See debootstrap (8) for more details.

--debootstrap-keyring=keyring

Pass along the path to a gpg keyring file to debootsrap's --keyring argument. See debootstrap (8) for more details.

--debootstrap-no-check-gpg

Disable checking gpg signatures of downloaded Release files by using debootstrap's --no-check-gpg option. See debootstrap (8) for more details.

--debootstrap-proxy=PROXY

Use PROXY as apt proxy.

--eatmydata

Install and use eatmydata (default)

--skip-eatmydata

Don't install and use eatmydata

--distro=DISTRO

Enable distro-specific logic. When not provided, the distribution is determined from release. Currently known distros: "debian" and "ubuntu".

--vg=VOLUME_GROUP

Specify a volume group, and subsequently use a default SCHROOT_TYPE of "lvm-snapshot" rather than "directory" (via overlayfs or aufs) mounts.

--type=SHROOT_TYPE

Specify a SCHROOT_TYPE. Supported values are "directory" (default if --vg not specified), "lvm-snapshot" (default if --vg specified), "btrfs-snapshot", and "file".

--ccache

Enable usage of ccache by default. See ccache (1) for more details.

--ccache-dir=PATH

Use PATH as schroot ccache directory. This directory can be safely shared by multiple schroots, but they will all use the same CCACHE_MAXSIZE. Defaults to /var/cache/ccache-sbuild. See ccache (1) for more details.

--ccache-size=SIZE

Sets SIZE as the schroot CCACHE_DIR max-size used by ccache. See ccache (1) for more details.

ENVIRONMENT VARIABLES¶

LV_SIZE

Size of source LVs (defaults to 5G).

SNAPSHOT_SIZE

Size of snapshot LVs (defaults to 4G).

SCHROOT_CONF_SUFFIX

Lines to append to schroot entries.

SCHROOT_PROFILE

Profile to use with schroot. (defaults to sbuild)

SKIP_UPDATES

Do not include the -updates pocket (same as --skip-updates)

SKIP_PROPOSED

Do not include the -proposed pocket (same as --skip-proposed)

DEBOOTSTRAP_MIRROR

Mirror location (same as --debootstrap-mirror)

DEBOOTSTRAP_INCLUDE

Comma separated list of packages to include when bootstrapping (same as --debootstrap-include)

DEBOOTSTRAP_EXCLUDE

Comma separated list of packages to exclude when bootstrapping (same as --debootstrap-exclude; see warning above)

DEBOOTSTRAP_KEYRING

Keyring file to use for checking gpg signatures of retrieved release files (same as --debootstrap-keyring)

DEBOOTSTRAP_NO_CHECK_GPG

Disable gpg verification of retrieved release files (same as --debootstrap-no-check-gpg)

DEBOOTSTRAP_PROXY

Proxy to use for apt. (same as --debootstrap-proxy)

EATMYDATA

Enable or disable eatmydata usage, see --eatmydata and --skip-eatmydata

SOURCE_CHROOTS_DIR

Use SOURCE_CHROOTS_DIR as home of schroot source directories. (default /var/lib/schroot/chroots)

SOURCE_CHROOTS_TGZ

Use SOURCE_CHROOTS_TGZ as home of schroot source tarballs. (default /var/lib/schroot/tarballs)

CHROOT_SNAPSHOT_DIR

Use CHROOT_SNAPSHOT_DIR as home of mounted btrfs snapshots. (default /var/lib/schroot/snapshots)

CCACHE

Enable ccache (1) by default. (defaults to 0)

CCACHE_DIR

Use CCACHE_DIR as the ccache (1) directory. (default /var/cache/ccache-sbuild)

CCACHE_SIZE

Use CCACHE_SIZE as the ccache (1) max-size. (defaults to 4G)

FILES¶

$HOME/.mk-sbuild.rc

Sourced for environment variables (defined above).

$HOME/.mk-sbuild.sources[.$DISTRO]

Can contain a customized sources.list. It will be read when creating the schroot. If a file with ".ubuntu" or ".debian" is found (as appropriate) it will use used instead. See sources.list (5) for more details on the format.

$HOME/.mk-sbuild.schroot.conf[.$SCHROOT_TYPE]

Can contain a customized configuration section to be inserted into /etc/schroot/schroot.conf. If a file with ".lvm-snapshot", ".directory", ".file", or "btrfs-snapshot" is found (as appropriate) that file will use used instead. See schroot.conf (5) for more details on the format.

USING THE CHROOTS¶

To CHANGE the golden image: sudo schroot -c ${SCHROOT_NAME}-source -u root

To ENTER an image snapshot: schroot -c $SCHROOT_NAME

To BUILD within a snapshot: sbuild -A -d $SCHROOT_NAME $PACKAGE*.dsc

for example, to update the packages in a sid-amd64 golden image:

schroot -c sid-amd64-source -u root -- sh -c "apt-get -qq update && apt-get -qy upgrade && apt-get clean" </dev/null

SEE ALSO¶

sbuild-setup(7), sources.list(5), schroot.conf(5), https://help.ubuntu.com/community/SbuildLVMHowto

AUTHOR¶

mk-sbuild was written by Kees Cook <kees@ubuntu.com>. This man page was written by Ryan Kavanagh <ryanakca@kubuntu.org>. Both are released under the GNU General Public License, version 3 or later.