Cluster: Sage Chroot

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== Chroot ==
== Chroot ==
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The image itself is at /mounts/bobsced/sage_chroot.image (aka /cluster/bobscednew/sage_chroot.image).  It gets mounted in the same directory as sage_chroot.  It has an ext3 filesystem.
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The image itself is at /mounts/bobsced/sage_chroot.image (aka /cluster/bobscednew/sage_chroot.image).  It gets mounted in the same directory as sage_chroot (it's an ext3 filesystem)The chroot needs to have /dev and /proc, so here's a copy of the relevant parts of <code>/etc/fstab</code>:
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<pre>
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/mounts/bobsced/sage_chroot.image /mounts/bobsced/sage_chroot ext3 loop 0 0
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/dev            /mounts/bobsced/sage_chroot/dev devpts  defaults        0 0
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/proc          /mounts/bobsced/sage_chroot/proc proc  defaults        0 0
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</pre>
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In order to get yum to install there, I had to edit <code>/etc/yum.repos.d/CentOS-Base.repo</code> and hard code $releasever to 3.5.  I also commented out all the repositories except the top one.  Then I was able to run:
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:<code>yum --installroot=/mounts/bobsced/sage_chroot install bash fileutils sed which make gcc gcc-c++ m4 tar gzip bzip2 flex bison findutils yum rpm passwd perl diffutils</code>
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to set up the base install of the OS for the chroot.  It also needs a copy of /etc/hosts for the localhost entry.
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== Sage Install ==
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I downloaded the tar ball normally and then moved it into the chroot from the base filesystem. I untarred it from the base filesystem, too, then ran
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:<code>make</code>
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:<code>make test</code>
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:<code>make install</code>

Revision as of 15:22, 10 September 2009

In order to chroot the Sage notebook, I used a mix of steps from the following guides:

Chroot

The image itself is at /mounts/bobsced/sage_chroot.image (aka /cluster/bobscednew/sage_chroot.image). It gets mounted in the same directory as sage_chroot (it's an ext3 filesystem). The chroot needs to have /dev and /proc, so here's a copy of the relevant parts of /etc/fstab:

/mounts/bobsced/sage_chroot.image /mounts/bobsced/sage_chroot ext3 loop 0 0
/dev            /mounts/bobsced/sage_chroot/dev devpts  defaults        0 0
/proc           /mounts/bobsced/sage_chroot/proc proc   defaults        0 0

In order to get yum to install there, I had to edit /etc/yum.repos.d/CentOS-Base.repo and hard code $releasever to 3.5. I also commented out all the repositories except the top one. Then I was able to run:

yum --installroot=/mounts/bobsced/sage_chroot install bash fileutils sed which make gcc gcc-c++ m4 tar gzip bzip2 flex bison findutils yum rpm passwd perl diffutils

to set up the base install of the OS for the chroot. It also needs a copy of /etc/hosts for the localhost entry.

Sage Install

I downloaded the tar ball normally and then moved it into the chroot from the base filesystem. I untarred it from the base filesystem, too, then ran

make
make test
make install
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