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| author | Silvino Silva <silvino@bk.ru> | 2016-09-15 00:47:34 +0100 |
|---|---|---|
| committer | Silvino Silva <silvino@bk.ru> | 2016-09-15 00:47:34 +0100 |
| commit | 07bedee34d9ded6f86904c7e4b4e02464ff8cb14 (patch) | |
| tree | 242dcbfdcd97667017bdfcaaa535919b01168fe1 /tools/qemu.html | |
| parent | b9762bb44befe4a852688eb19cce1aec3462f2ca (diff) | |
| download | doc-07bedee34d9ded6f86904c7e4b4e02464ff8cb14.tar.gz | |
added tools
Diffstat (limited to 'tools/qemu.html')
| -rw-r--r-- | tools/qemu.html | 148 |
1 files changed, 148 insertions, 0 deletions
diff --git a/tools/qemu.html b/tools/qemu.html new file mode 100644 index 0000000..9110b10 --- /dev/null +++ b/tools/qemu.html @@ -0,0 +1,148 @@ +<!DOCTYPE html> +<html dir="ltr" lang="en"> + <head> + <meta charset='utf-8'> + <title>1. Qemu</title> + </head> + <body> + + <a href="index.html">Tools Index</a> + + <h1>1. Qemu</h1> + + <p>Disk images;</p> + + <dl> + <dt>img</dt> + <dd>network slirp</dd> + <dt>raw</dt> + <dd>network tap</dd> + <dt>qcow2</dt> + <dd>... ...</dd> + </dl> + + + <p>Network configuration;</p> + <dl> + <dt>slirp</dt> + <dd>network slirp</dd> + <dt>tun/tap</dt> + <dd>network tap</dd> + <dt>...</dt> + <dd>... ...</dd> + </dl> + + <h2>Kernel configuration</h2> + + <pre> + # usermod -a -G kvm c9admin + # usermod -a -G kvm username + </pre> + + <h2>Network configuration</h2> + + <h3>Tap interfaces</h3> + + <pre> + KERNEL=="tun", GROUP="kvm", MODE="0660", OPTIONS+="static_node=net/tun" + </pre> + + <p>Automatic creation of tap interface with + correct permissions set for user and group, + you can set only user or group;</p> + + <pre> + # tunctl -u username -g kvm + </pre> + + <p>Set permissions to existing tap interface;</p> + + <pre> + # tunctl -u username -t tap0 + </pre> + + + <p>Manual creation of tap interface;</p> + + <pre> + # ip tuntap add name tap0 mode tap + # chmod 0666 /dev/tap0 + # chown root:username /dev/tap0 + # ip link show + </pre> + + <p>Start qemu with 512 of ram, mydisk.img as disk and boot from iso</p> + + <pre> + $ qemu-system-x86_64 \ + -enable-kvm \ + -m 512 \ + -boot d -cdrom image.iso \ + -hda mydisk.img + </pre> + + <p>Start qemu with 1024 of ram, network configured using tap0 + interface device no host and boot from crux.qcow2;</p> + + <pre> + $ qemu-system-x86_64 \ + -enable-kvm \ + -m 1024 \ + -hda c9/local/crux.qcow2 \ + -net nic,model=virtio -net tap,ifname=tap0,script=no,downscript=no + </pre> + + <p>On host machine test network;</p> + + <pre> + # tcpdump tap0 + </pre> + + <h2>Disk image files</h2> + + <p>Create hard disk image, there is different types, + this describes how to create a qcow2 type;</p> + + <pre> + $ qemu-img create -f qcow2 crux-img.qcow2 20G + </pre> + + <p>You can mount disk image;</p> + + <pre> + $ sudo modprobe nbd + $ sudo qemu-nbd -c /dev/nbd0 /crux-img.qcow2 + </pre> + + <p>To disconnect image disk (ndb);</a> + + <pre> + $ sudo qemu-nbd -d /dev/nbd0 + </pre> + + <p>You can use image as a normal disk, example how + to use parted to create a gpt system table;</p> + + <pre> + # parted /dev/nbd0 + (parted) mklabel gpt + </pre> + + <p>More information about + <a href="http://devil-detail.blogspot.pt/2013/07/install-grub2-on-gpt-disk-dedicated-partition.html">gpt partition table</a>. + </p> + + <p>If partitions are on qcow2 image then setup partitions;</p> + + <pre> + # kpartx -a -s -l /dev/nbd0 + </pre> + + <a href="index.html">Tools Index</a> + <p>This is part of the c9 Manual. + Copyright (C) 2016 + Silvino Silva. + See the file <a href="../fdl-1.3-standalone.html">Gnu Free Documentation License</a> + for copying conditions.</p> + </body> +</html> |