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Diffstat (limited to 'tools/qemu.html')
| -rw-r--r-- | tools/qemu.html | 65 |
1 files changed, 63 insertions, 2 deletions
diff --git a/tools/qemu.html b/tools/qemu.html index 2066a6e..e32d03f 100644 --- a/tools/qemu.html +++ b/tools/qemu.html @@ -53,7 +53,7 @@ <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 @@ -124,6 +124,67 @@ $ sudo qemu-nbd -d /dev/nbd0 </pre> + <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> @@ -164,7 +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 |