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sanboot:debian_and_ubuntu [2007/10/24 15:11] curs0r |
sanboot:debian_and_ubuntu [2007/12/12 06:11] (current) bengen typo |
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| ====== Debian or Ubuntu ====== | ====== Debian or Ubuntu ====== | ||
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| ===== Preparing an existing installation for AoE ===== | ===== Preparing an existing installation for AoE ===== | ||
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| you can now [[sanboot:aoe|make the contents of that image available | you can now [[sanboot:aoe|make the contents of that image available | ||
| via AoE]]. | via AoE]]. | ||
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| # apt-get update #In case gnupg has the sniffles | # apt-get update #In case gnupg has the sniffles | ||
| # apt-get upgrade #It is always better to be certain that you have the latest versions than guess | # apt-get upgrade #It is always better to be certain that you have the latest versions than guess | ||
| - | # apt-get install linux-generic grub | + | # apt-get install linux-generic grub aoetools |
| </code> | </code> | ||
| To make our image bootable, Grub must be setup within the MBR. In order for this to work, we must first create the AoE special devices in our chroot. Then we must discover AoE targets so that we may mount our image under the chroot using the mount point /aoeroot. | To make our image bootable, Grub must be setup within the MBR. In order for this to work, we must first create the AoE special devices in our chroot. Then we must discover AoE targets so that we may mount our image under the chroot using the mount point /aoeroot. | ||
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| # cp -r /usr/lib/grub/i386/. /boot/grub | # cp -r /usr/lib/grub/i386/. /boot/grub | ||
| </code> | </code> | ||
| - | Grub will require a file called devices.map to be present under /boot/grub. The contents of this file are quite simple. | + | Grub will require a file called devices.map to be present under /boot/grub. Using the nano text editor we can create this simple file quickly. |
| <code> | <code> | ||
| # nano /boot/grub/devices.map | # nano /boot/grub/devices.map | ||
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| Note that this setup still requires the scripts provided on this page, the creation of /etc/fstab, and the creation of /boot/grub/menu.lst. Some users may have difficulty using Gnome unless they add '' iface lo inet loopback'' and ''auto lo'' to /etc/network/interfaces. Always make certain to run ''update-initramfs -c -k all -v'' after any changes to keep your system booting happily. When you are finished creating/customizing /etc/fstab, /boot/grub/menu.lst and /etc/network/interfaces you will have a basic bootable image suitable for reuse. Setting up a new client is as simple as: copy the image, use vblade to make the new image available, mount the image, edit the specifics (ie: /boot/grub/menu.lst, /etc/hosts, etc) then boot from your new client. Once you have booted this basic image, making it a full system is as simple as apt-get install ubuntu-desktop, ubuntu-server, xubuntu-desktop, kubuntu-desktop, or whichever you choose. | Note that this setup still requires the scripts provided on this page, the creation of /etc/fstab, and the creation of /boot/grub/menu.lst. Some users may have difficulty using Gnome unless they add '' iface lo inet loopback'' and ''auto lo'' to /etc/network/interfaces. Always make certain to run ''update-initramfs -c -k all -v'' after any changes to keep your system booting happily. When you are finished creating/customizing /etc/fstab, /boot/grub/menu.lst and /etc/network/interfaces you will have a basic bootable image suitable for reuse. Setting up a new client is as simple as: copy the image, use vblade to make the new image available, mount the image, edit the specifics (ie: /boot/grub/menu.lst, /etc/hosts, etc) then boot from your new client. Once you have booted this basic image, making it a full system is as simple as apt-get install ubuntu-desktop, ubuntu-server, xubuntu-desktop, kubuntu-desktop, or whichever you choose. | ||
| + | ==== Troubleshooting ==== | ||
| - | ==== Hint ==== | + | It is possible to get a shell in Debian's and Ubuntu's initial |
| - | * If the system hangs before the root device has been mounted, passing ''break=mount'' on the command line will spawn a shell before ''scripts/local-top/aoetools'' is run. This should allow for further debugging. | + | ramdisks at various stages by passing ''debug=<WHEN>'' to the kernel. |
| + | For debugging issues related to a boot device not being found, | ||
| + | ''debug=mount'' is probably most useful. | ||
| + | |||
| + | See ''initramfs-tools(8)'' for further details. | ||
| + | |||
| + | Things to look out for include: | ||
| + | |||
| + | * Has the driver for the NIC been loaded? | ||
| + | * Is the interface "up"? | ||
| + | * Has the ''aoe'' kernel module ben loaded? | ||
| + | * Does ''/dev/aoe/'' exist, does it contain the necessary entries? | ||
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| case $ROOT in | case $ROOT in | ||
| /dev/etherd/e*) | /dev/etherd/e*) | ||
| - | # INTERFACES=`awk -F: '/eth[0-9]*:/ { print $1 }' < /proc/net/dev` | ||
| INTERFACES=`sed -ne '/eth.*:/{s/:.*$//;p;}' < /proc/net/dev` | INTERFACES=`sed -ne '/eth.*:/{s/:.*$//;p;}' < /proc/net/dev` | ||
| for i in $INTERFACES; do | for i in $INTERFACES; do | ||
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| ifconfig $i up | ifconfig $i up | ||
| done | done | ||
| - | sleep 5 | + | # Make sure udev has processed all events from adding the NIC |
| + | # modules before loading aoe | ||
| + | [ -x /sbin/udevsettle ] && /sbin/udevsettle --timeout=30 | ||
| modprobe aoe | modprobe aoe | ||
| + | # Wait until aoe device files have been generated. | ||
| + | [ -x /sbin/udevsettle ] && /sbin/udevsettle --timeout=30 | ||
| aoe-discover | aoe-discover | ||
| ;; | ;; | ||
| esac | esac | ||
| </code> | </code> | ||
| - | |||
| - | ===== Preparing an existing installation for iSCSI ===== | ||
| - | TBD | ||
