https://fedorapeople.org/groups/virt/virtio-win/direct-downloads/archive-virtio/virtio-win-0.1.217-1/virtio-win-0.1.217.iso Export VM definition to XML sudo virsh dumpxml instance-00000879 > instance-00000879.xml Edit the XML Set current OS disk to IDE 63079162-7de3-4f72-882c-b6942ebc008e Add CDROM Add a fake …

Read More

You can use youtube-dl to download individual videos, or you can ask it to download an entire playlist. When it’s downloading a playlist, it downloads the individual videos one-by-one, which isn’t particularly fast. Here’s a shell snippet that downloads playlist videos in parallel, which is faster: 1youtube-dl --get-id …

Read More

A while back I had to configure a bunch of servers with Mellanox Connect-X 4 NIC's to talk to an ethernet Switch(Dell S6000-ON to be exact) and the NIC's that my customer had fitted not only had really old firmware but they were also in Infiniband(I think) mode, not Ethernet. So i had to do some legwork.. First job was …

Read More

In the wise words of one of my collegues If you need a cheap http server 1python3 -m http.server

Read More

Lets create a VLAN sub interface on a physical interface eth0 then add this new vlan subinterface eth0.10 to a new bridge br10 We might want to do this so that VM's running on this host have access to this VLAN 1ip link add link eth0 name eth0.10 type vlan id 10 2ip link set dev eth0.10 up 3brctl addbr br10 4brctl …

Read More

Sometimes I need to move files from a server on which I have SSH access but these files are big and or have complex formatting which breaks if you just try and copy\paste the contents So, if we gzip the file then base64 encode this compressed file we now have a string thats much smaller than the original and it's in a …

Read More

1 echo "LS_COLORS=$LS_COLORS:'di=0;35:' ; export LS_COLORS" >> ~/.bashrc To fix the dir colour in the bash prompt, not just the LS output, set this in .bashrc: 1if [ "$color_prompt" = yes ]; then …

Read More

1 echo "LS_COLORS=$LS_COLORS:'di=0;35:' ; export LS_COLORS" >> ~/.bashrc To fix the dir colour in the bash prompt, not just the LS output, set this in .bashrc: 1if [ "$color_prompt" = yes ]; then …

Read More

After a reboot of my Ceph test VM's a few OSD's didnt come online. When running ceph osd tree I saw: 1[root@lib-cephosd1 ~]# ceph osd tree 2ID WEIGHT TYPE NAME UP/DOWN REWEIGHT PRIMARY-AFFINITY 3 -1 0.29984 root default 4 -2 0.09995 host lib-cephosd1 5 1 0.00999 osd.1 up 1.00000 1.00000 6 0 0.00999 osd.0 up 1.00000 …

Read More

HP Bl460C G6 Centos7 RAID tool Works on my HP G6 servers with this in lspci 0c:00.0 RAID bus controller: Hewlett-Packard Company Smart Array G6 controllers (rev 01) wget http://mirror.nforce.com/pub/software/raidtools/hpacucli-tool/hpacucli-9.40-12.0.x86_64.rpm yum install hpacucli-9.40-12.0.x86_64.rpm hpacucli ctrl …

Read More