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diff --git a/tools/qemu.html b/tools/qemu.html index f79b955..e32d03f 100644 --- a/tools/qemu.html +++ b/tools/qemu.html @@ -46,12 +46,14 @@ $ qemu-img create -f qcow2 crux-img.qcow2 2000M </pre> + <h3 id="mount">2.1. Mount images</h3> + <p>Qemu disk images can be treated as regular disks using qemu disk network block device server;</p> <pre> $ sudo modprobe nbd - $ sudo qemu-nbd -c /dev/nbd0 /crux-img.qcow2 + $ sudo qemu-nbd -c /dev/nbd0 crux-img.qcow2 </pre> <p>Information about preparing @@ -64,10 +66,10 @@ parted --script ${DEV} \ mklabel gpt \ unit mib \ - mkpart primary 1 3 \ + mkpart primary 2 4 \ set 1 bios_grub on \ name 1 grub \ - mkpart ESP fat32 3 59 \ + mkpart ESP fat32 4 59 \ set 2 boot on \ name 2 efi \ mkpart primary ext4 103 200 \ @@ -122,7 +124,68 @@ $ sudo qemu-nbd -d /dev/nbd0 </pre> - <h2 id="net">2. Network</h2> + <h3 id="resize">2.2. Resize images</h3> + + <p>Verify disk image information;</p> + + <pre> + $ qemu-img info c1-storage.qcow2 + </pre> + + <pre> + image: c1-storage.qcow2 + file format: qcow2 + virtual size: 10G (10737418240 bytes) + disk size: 7.6G + cluster_size: 65536 + Format specific information: + compat: 1.1 + lazy refcounts: false + refcount bits: 16 + corrupt: false + $ + </pre> + + <p>In this example is added 25G to the image;</p> + + <pre> + $ qemu-img resize c1-storage.qcow2 +25G + </pre> + + <p>Read <a href="lvm.html#resize">lvm resize</a> if image + is using lvm, or use resize2fs. If size is not provided to resize2fs, + by default it will grow file system to all partition;</p> + + <pre> + $ sudo qemu-nbd -c /dev/nbd0 /srv/qemu/img/c1-server.qcow2 + </pre> + + <pre> + # kpartx -a -s -l -u /dev/nbd0 + GPT:Primary header thinks Alt. header is not at the end of the disk. + GPT:Alternate GPT header not at the end of the disk. + GPT: Use GNU Parted to correct GPT errors. + + # parted /dev/nbd0 + GNU Parted 3.2 + Using /dev/nbd0 + Welcome to GNU Parted! Type 'help' to view a list of commands. + (parted) print + Warning: Not all of the space available to /dev/nbd0 appears to be used, you can + fix the GPT to use all of the space (an extra 16777216 blocks) or continue with + the current setting? + Fix/Ignore? Fix + + (parted) resize 3 100% + (parted) quit + </pre> + + <pre> + # resize2fs /dev/mapper/nbd0p3 + # e2fsck /dev/mapper/nbd0p3 + </pre> + + <h2 id="net">3. Network</h2> <p>Network configuration;</p> @@ -140,7 +203,7 @@ KERNEL=="tun", GROUP="kvm", MODE="0660", OPTIONS+="static_node=net/tun" </pre> - <h3>2.1. Routing</h3> + <h3>3.1. Routing</h3> <p>Create interface with correct permissions set for kvm group.</p> @@ -152,7 +215,7 @@ # iptables -t nat -A POSTROUTING -s 10.0.0.0/24 -j MASQUERADE </pre> - <h3>2.2. Public Bridge</h3> + <h3>3.2. Public Bridge</h3> <p>Create <a href="network.html#bridge">bridge</a>, create new tap and add it to bridge;</p> @@ -162,7 +225,7 @@ ADDR=10.0.0.254 NET=10.0.0.0 - GW=192.168.1.254 + GW=10.0.0.1 MASK=24 # one tap for each cpu core @@ -213,7 +276,7 @@ # End of file </pre> - <h2 id="guest">Guest System</h2> + <h2 id="guest">4. Guest System</h2> <p>See <a href="scripts/runvm/runvm.sh">scripts/runvm/runvm.sh</a>, as template. Example scripts;</p> @@ -253,7 +316,7 @@ <p>Set guests machines to run under the total resolution provided by host system configure grub on the guest with gfxmode;</p> - <h3 id="guest">Guest Graphics</h3> + <h3 id="graphics">4.1. Guest Graphics</h3> <p>Get current resolution on host machine;</p> @@ -275,7 +338,7 @@ # update-grub </pre> - <h3 id="sound">Guest Sound</h3> + <h3 id="sound">4.2. Guest Sound</h3> <p>Check if DMAR is enable on kernel configuration, Intel and AMD uses different technology. To check on @@ -298,11 +361,12 @@ other="-soundhw hda -vga std -display sdl" </pre> - <h3 id="sound">Guest USB</h3> + <h3 id="usb">4.3. Guest USB</h3> <pre> # lsusb # ls /dev/v4l + # ls /dev/bus/usb </pre> <pre> @@ -319,9 +383,26 @@ mac="54:60:be:ef:5c:72" other="-soundhw hda -vga std -display sdl -usb -device usb-host,vendorid=0x13d3,productid=0x5652" </pre> + + <h2 id="bootusb">5. Boot iso on usb</h2> + + <pre> + # lsusb + # ls /dev/bus/usb + </pre> + + <pre> + # chown root:kvm /dev/bus/usb/003/012 + </pre> + + + <pre> + $ qemu-system-x86_64 -m 512 -enable-kvm -vnc :0 -usb -device usb-host,hostbus=3,hostaddr=12 + </pre> + <a href="index.html">Tools Index</a> <p>This is part of the c9 Manual. - Copyright (C) 2016 + Copyright (C) 2018 c9 team. See the file <a href="../fdl-1.3-standalone.html">Gnu Free Documentation License</a> for copying conditions.</p> |