FC2 useradd in chroot on FC5 host with SELinux

Daniel J Walsh dwalsh at redhat.com
Thu Jul 13 16:28:49 UTC 2006


Paul Howarth wrote:
> Daniel J Walsh wrote:
>> Paul Howarth wrote:
>>> I use mock to build packages for old distributions in a chroot-ed
>>> environment on my FC5 box. I've pretty well got this working for all 
>>> old
>>> distributions now apart from FC2 (see
>>> http://www.fedoraproject.org/wiki/Legacy/Mock). On FC2, the process 
>>> gets
>>> off to quite a good start, installing the following packages into the
>>> chroot:
>>>
>>> ============================================================================= 
>>>
>>>  Package                 Arch       Version          Repository
>>> Size
>>> ============================================================================= 
>>>
>>> Installing:
>>>  buildsys-build          noarch     0.5-1.CF.fc2     groups
>>> 1.8 k
>>> Installing for dependencies:
>>>  SysVinit                i386       2.85-25          core
>>> 96 k
>>>  basesystem              noarch     8.0-3            core
>>> 2.7 k
>>>  bash                    i386       2.05b-38         core
>>> 1.5 M
>>>  beecrypt                i386       3.1.0-3          core
>>> 64 k
>>>  binutils                i386       2.15.90.0.3-5    core
>>> 2.8 M
>>>  buildsys-macros         noarch     2-2.fc2          groups
>>> 2.1 k
>>>  bzip2                   i386       1.0.2-12.1       core
>>> 48 k
>>>  bzip2-libs              i386       1.0.2-12.1       core
>>> 32 k  chkconfig               i386       1.3.9-1.1        core
>>> 99 k
>>>  coreutils               i386       5.2.1-7          core
>>> 2.8 M
>>>  cpio                    i386       2.5-6            core
>>> 45 k
>>>  cpp                     i386       3.3.3-7          core
>>> 1.4 M
>>>  cracklib                i386       2.7-27.1         core
>>> 26 k
>>>  cracklib-dicts          i386       2.7-27.1         core
>>> 409 k
>>>  db4                     i386       4.2.52-3.1       core
>>> 1.5 M
>>>  dev                     i386       3.3.13-1         core
>>> 3.6 M
>>>  diffutils               i386       2.8.1-11         core
>>> 205 k
>>>  e2fsprogs               i386       1.35-7.1         core
>>> 728 k
>>>  elfutils-libelf         i386       0.95-2           core
>>> 36 k
>>>  ethtool                 i386       1.8-3.1          core
>>> 48 k
>>>  fedora-release          i386       2-4              core
>>> 92 k
>>>  file                    i386       4.07-4           core
>>> 242 k
>>>  filesystem              i386       2.2.4-1          core
>>> 18 k
>>>  findutils               i386       1:4.1.7-25       core
>>> 102 k
>>>  gawk                    i386       3.1.3-7          core
>>> 1.5 M
>>>  gcc                     i386       3.3.3-7          core
>>> 3.8 M
>>>  gcc-c++                 i386       3.3.3-7          core
>>> 2.0 M
>>>  gdbm                    i386       1.8.0-22.1       core
>>> 26 k
>>>  glib                    i386       1:1.2.10-12.1.1  core
>>> 134 k
>>>  glib2                   i386       2.4.8-1.fc2      updates-released
>>> 477 k
>>>  glibc                   i686       2.3.3-27.1       updates-released
>>> 4.9 M
>>>  glibc-common            i386       2.3.3-27.1       updates-released
>>> 14 M
>>>  glibc-devel             i386       2.3.3-27.1       updates-released
>>> 1.9 M
>>>  glibc-headers           i386       2.3.3-27.1       updates-released
>>> 530 k
>>>  glibc-kernheaders       i386       2.4-8.44         core
>>> 697 k
>>>  grep                    i386       2.5.1-26         core
>>> 168 k
>>>  gzip                    i386       1.3.3-12.2.legacy  updates-released
>>> 88 k
>>>  info                    i386       4.7-4            updates-released
>>> 147 k
>>>  initscripts             i386       7.55.2-1         updates-released
>>> 906 k
>>>  iproute                 i386       2.4.7-14         core
>>> 591 k
>>>  iputils                 i386       20020927-13      core
>>> 92 k
>>>  less                    i386       382-3            core
>>> 85 k
>>>  libacl                  i386       2.2.7-5          core
>>> 15 k
>>>  libattr                 i386       2.4.1-4          core
>>> 8.6 k
>>>  libgcc                  i386       3.3.3-7          core
>>> 33 k
>>>  libselinux              i386       1.11.4-1         core
>>> 45 k
>>>  libstdc++               i386       3.3.3-7          core
>>> 240 k
>>>  libstdc++-devel         i386       3.3.3-7          core
>>> 1.3 M
>>>  libtermcap              i386       2.0.8-38         core
>>> 12 k
>>>  make                    i386       1:3.80-3         core
>>> 337 k
>>>  mingetty                i386       1.07-2           core
>>> 18 k
>>>  mktemp                  i386       2:1.5-7          core
>>> 12 k
>>>  modutils                i386       2.4.26-16        core
>>> 395 k
>>>  ncurses                 i386       5.4-5            core
>>> 1.5 M
>>>  net-tools               i386       1.60-25.1        updates-released
>>> 311 k
>>>  pam                     i386       0.77-40          core
>>> 1.9 M
>>>  patch                   i386       2.5.4-19         core
>>> 61 k
>>>  pcre                    i386       4.5-2            core
>>> 59 k
>>>  perl                    i386       3:5.8.3-18       core
>>> 11 M
>>>  perl-Filter             i386       1.30-5           core
>>> 68 k
>>>  popt                    i386       1.9.1-0.4.1      updates-released
>>> 61 k
>>>  procps                  i386       3.2.0-1.2        updates-released
>>> 176 k
>>>  psmisc                  i386       21.4-2           core
>>> 41 k
>>>  redhat-rpm-config       noarch     8.0.28-1.1.1     core
>>> 41 k
>>>  rpm                     i386       4.3.1-0.4.1      updates-released
>>> 2.2 M
>>>  rpm-build               i386       4.3.1-0.4.1      updates-released
>>> 437 k
>>>  sed                     i386       4.0.8-4          core
>>> 116 k
>>>  setup                   noarch     2.5.33-1         core
>>> 29 k
>>>  shadow-utils            i386       2:4.0.3-55       updates-released
>>> 671 k
>>>  sysklogd                i386       1.4.1-16         core
>>> 65 k
>>>  tar                     i386       1.13.25-14       core
>>> 351 k
>>>  termcap                 noarch     11.0.1-18.1      core
>>> 237 k
>>>  tzdata                  noarch     2005f-1.fc2      updates-released
>>> 449 k
>>>  unzip                   i386       5.50-37          core
>>> 139 k
>>>  util-linux              i386       2.12-19          updates-released
>>> 1.5 M
>>>  which                   i386       2.16-2           core
>>> 21 k
>>>  words                   noarch     2-22             core
>>> 137 k
>>>  zlib                    i386       1.2.1.2-0.fc2    updates-released
>>> 44 k
>>>
>>> After installing all of these packages successfully, the next thing 
>>> that
>>> happens is:
>>>
>>> Executing /usr/sbin/mock-helper
>>> chroot /var/lib/mock/fedora-2-i386-core/root /bin/su - root -c
>>> "/usr/sbin/useradd -m -u 500 -d /builddir mockbuild"
>>>
>>> and at that point the "useradd" process just hangs indefinitely. I'm
>>> told that if SELinux is disabled (I've tried permissive mode and that
>>> doesn't help), this works. I can't see any AVCs in the logs.
>>>
>>> Any ideas what might be causing this and how it might be fixed?
>
>
>> In fc2 you should disable SELinux.
>
> I'm running this on FC5; what I'm trying to do is set up a chroot with 
> FC2 packages. This includes the FC2 version of useradd, and it's this 
> that's hanging when run in the chroot.
>
> I'd happily give things in the chroot the impression that SELinux is 
> disabled (I believe mock actually does this already) but I *really* 
> don't want to disable SELinux on my FC5 host.
>
> Paul.
I have no idea why this would happen then. 
And I am not sure I believe them when they say that if SELinux was 
disabled this would work differently, unless there is a kernel bug.  You 
are not seeing avc messages, correct?  Usually if it does not work in 
permissive mode it is not an SELinux problem.




More information about the fedora-selinux-list mailing list