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On 7/13/07, Hendrik Boom <hendrik@××××××××××.com> wrote: |
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> A few months ago I tried installing gentoo. It mostly succeedes, but I |
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> was unable to boot the new system. |
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> |
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> When I boot, it fails as follows: |
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> |
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> >> Activating mdev |
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> >> Determining root device |
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> !! Block device /dev/mapper/lovesong-gentoo is not a valid block device |
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> !! The root block device is unspecified or not detected |
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> Please specify a device to boot, or "shell" for a shell |
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> boot() :: |
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> |
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> |
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> Now I originally installed this system using a chroot from a Debian etch |
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> system. I used genkernel to generate the kernel. As far as I can |
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> remember, I did specified the --lvm option. |
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> |
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> Now perhaps the kernel is not OK because I ran genkernel in a chroot |
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> running on a Debian kernel... |
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> |
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> Perhaps I chose the wront options... |
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> |
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> Perhaps I can fix things by rerunning genkernel with different options... |
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> |
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> Or perhaps I need to start all over from a full-fledged gentoo install CD. |
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> |
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> Please advise. |
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> |
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> -- hendrik |
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> |
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> P.S. Soime Gory Details: |
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|
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hendrik - |
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|
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My gut reaction is that you should just start over and install from |
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scratch. I have only installed Gentoo by booting from the Gentoo |
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install CD in the past, so I'm not familiar with using chroot from a |
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Debian system. I think the best and most well documented way to do a |
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Gentoo install is to simply follow the handbook |
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(http://www.gentoo.org/doc/en/handbook/index.xml). |
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|
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It is very easy to install Gentoo along with other OS's. You just |
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need to have a partition or two handy. In my case, when I'm |
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rebuilding my system from scratch I've always installed Gentoo third |
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(Windows XP first, openSUSE second, then Gentoo). I use two |
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partitions for Gentoo, a /boot partition and a / partition, and I use |
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the swap partition that was created for openSUSE for Gentoo as well. |
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Then, I don't install grub in Gentoo, I simply add a Gentoo entry to |
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the grub menu in openSUSE. |
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|
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I haven't personally used LVM with Gentoo, but I have set up an Ubuntu |
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Server box with LVM and my experience is that it is best not to bother |
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with LVM unless you really know you're going to need it. In any case, |
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the documentation I was following for Ubuntu required at least the |
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/boot partition be non-LVM for grub to read the kernel off of it, but |
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this may be due to a lack of knowledge in the workings of grub and |
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LVM. |
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-- |
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