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Debian: 2004-1: linux-2.6.24: privilege escalation/denial of service/sensitive memory leak
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cowbuilder(8) cowdancer cowbuilder(8) NAME
cowbuilder - a pbuilder wrapper for cowdancer. SYNOPSIS
cowbuilder [commands] [options] DESCRIPTION
cowbuilder Executes the specified pbuilder operation with cowdancer COMMANDS
Most commands invoke pbuilder with the specified commands, see pbuilder manual for details. --create Create the base.cow image. The directory for base.cow should be empty, or this command will fail. --update Update the base.cow image. --build .dsc-file Build a package given a .dsc file --login Start a session within the base.cow. --execute Execute a command within the base.cow. --dumpconfig dump configuration information. OPTIONS
Most options are the same as pbuilder, except for the following which are handled specially --buildplace The place where COW operation takes place. --basepath has a very different meaning to basetgz option of pbuilder, since there is no tgz. This option specifies the directory in which the COW master data is stored, the default being /var/cache/pbuilder/base.cow --configfile [configuration file to load] Additional configuration file to read after all other configuration files have been read. --no-cowdancer-update Do not use cowdancer on cowbuilder --update. Please use this option when cowdancer is interfering with upgrade process, or cowdancer itself is being upgraded within chroot. --debian-etch-workaround Work around on Debian etch compatibility. cow-shell will search for all files in chroot, but will work. CONFIGURATION FILES
cowbuilder reads the following configuration files per default. /usr/share/pbuilder/pbuilderrc Application default, not to be changed. /etc/pbuilderrc System-wide default. ~/.pbuilderrc User default anything specified with --configfile option Additional configuration at runtime. CONFIGURATION FILE OPTIONS
The possible configuration options are as follows. Others are ignored. DISTRIBUTION=distribution BUILDRESULT=directory BUILDPLACE=directory BASEPATH=path MIRRORSITE=http://mirror NO_COWDANCER_UPDATE=1 See --no-cowdancer-update DEBIAN_ETCH_WORKAROUND=1 See --debian-etch-workaround EXAMPLES
cowbuilder --create Create a base.cow image. # cowbuilder --create --hookdir /usr/share/doc/pbuilder/examples/workaround/ --distribution etch --debootstrap debootstrap --basepath /var/cache/pbuilder/base-test.cow bash: /root/.pbuilderrc: No such file or directory W: /home/dancer/.pbuilderrc does not exist -> Running in no-targz mode Distribution is etch. Building the build environment -> running debootstrap /usr/sbin/debootstrap I: Retrieving Release . . cowbuilder --update Update the base.cow image. # cowbuilder --update bash: /root/.pbuilderrc: No such file or directory -> Copying COW directory -> Invoking pbuilder W: /home/dancer/.pbuilderrc does not exist -> Running in no-targz mode -> copying local configuration -> mounting /proc filesystem -> mounting /dev/pts filesystem -> policy-rc.d already exists Refreshing the base.tgz -> upgrading packages . . cowbuilder --build test_0.1.dsc Build the package specified in dsc file, with the base.cow image. pdebuild --pbuilder cowbuilder Run cowbuilder --build against the current directory. The current directory should be an extracted Debian source package directory. Edit /etc/pbuilderrc to have PDEBUILD_PBUILDER=cowbuilder to make this the default behavior for pdebuild. cowbuilder --login --bindmounts /home/dancer Start a cow-shell session inside base.cow, with /home/dancer being bind-mounted to within chroot. Note that cowbuilder will not cow-protect what is inside /home/ # cowbuilder --login --bindmount ${HOME} bash: /root/.pbuilderrc: No such file or directory -> Copying COW directory -> Invoking pbuilder W: /home/dancer/.pbuilderrc does not exist -> Running in no-targz mode -> copying local configuration -> mounting /proc filesystem -> mounting /dev/pts filesystem -> Mounting /home/dancer -> policy-rc.d already exists -> entering the shell # cowbuilder --create --distribution sid --basepath /var/cache/pbuilder/base-test.cow Create a base.cow image with the path /var/cache/pbuilder/base-test.cow and distribution sid. AUTHOR
Junichi Uekawa (dancer@debian.org) SEE ALSO
/usr/share/doc/pbuilder/pbuilder-doc.html, pbuilder (8), pdebuild (1) cowdancer 2007 Jun 17 cowbuilder(8)
