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Interesting approach. I'll give that a try. |
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Thanks, |
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Thomas |
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|
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Am 15.12.2010 10:56, schrieb YoYo Siska: |
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> On Wed, Dec 15, 2010 at 10:15:12AM +0100, Thomas Drueke wrote: |
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>> Hi, |
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>> |
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>> is it possible to emerge packages to a $ROOT directory mounted via NFS ? |
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>> |
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>> The setup is |
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>> - machine A is equipped with a Quad core CPU |
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>> - machine B is equipped with an N330 Atom-CPU |
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>> - machine A is doing the system update on a local chroot-environment |
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>> for machine B and generates binary packages. These packages are |
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>> installed on machine B using the binary package feature of portage. |
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>> |
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>> I expected that the above setup would give an performance improvement |
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>> over letting machine B do the portage update itself. However a trial run |
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>> did not show significant improvement that justifies the effort. Machine |
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>> B still needs a reasonable amount of time to fetch unpack and install |
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>> the packages. |
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>> |
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>> An alternative way might be to mount machine B's / directory via NFS |
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>> and change make.conf's $ROOT variable to that mount point. |
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>> |
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>> Does that sound as a reasonable approach ? |
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> |
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> I had a very old machine, that was really slow. Compiles could be |
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> offloaded by distcc, but even the ./configure-s and portage stuff |
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> (checking, upacking, ...) was reaaly slow... |
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> |
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> So I just used to export / through nfs, mounted it on a fast amd64 and |
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> basically did (other is the slow machine) |
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> |
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> mount other:/ /mnt/other |
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> mount -t proc proc /mnt/other/proc |
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> mount --bind /dev /mnt/other/dev |
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> mkdir /tmp/other |
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> mount --bind /tmp/other /mnt/other/var/tmp/portage |
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> mkdir /home/gentoo-other |
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> mount --bind /home/gentoo-other /mnt/other/home/gentoo |
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> |
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> linux32 chroot /mnt/other /bin/bash |
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> emerge..... |
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> |
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> For the last mkdir/mount, I have DISTDIR=/home/gentoo/distfiles and |
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> PKGDIR=/home/gentoo/packages in make.conf, you can do that with the |
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> standart /usr/portage/{distfiles,packages} |
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> |
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> This way most of the compile is done "localy" on the fast machine. |
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> yoyo |
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> |
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> |
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>> |
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>> Regards, |
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>> Thomas |
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>> |
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> |
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> |
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> |
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> |
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