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Attention: the list was moved to
https://github.com/dypsilon/frontend-dev-bookmarks
This page is not maintained anymore, please update your bookmarks.
This is unmaintained, please visit Ben-PH/spacemacs-cheatsheet
SPC q q
- quitSPC w /
- split window verticallySPC w
- - split window horizontallySPC 1
- switch to window 1SPC 2
- switch to window 2SPC w c
- delete current windowSPC s c remove highlight | |
**** Files manipulations key bindings | |
Files manipulation commands (start with ~f~): | |
| Key Binding | Description | | |
|-------------+----------------------------------------------------------------| | |
| ~SPC f c~ | copy current file to a different location | | |
| ~SPC f C d~ | convert file from unix to dos encoding | | |
| ~SPC f C u~ | convert file from dos to unix encoding | |
### KERNEL TUNING ### | |
# Increase size of file handles and inode cache | |
fs.file-max = 2097152 | |
# Do less swapping | |
vm.swappiness = 10 | |
vm.dirty_ratio = 60 | |
vm.dirty_background_ratio = 2 |
# This will use osd.5 as an example | |
# ceph commands are expected to be run in the rook-toolbox | |
1) disk fails | |
2) remove disk from node | |
3) mark out osd. `ceph osd out osd.5` | |
4) remove from crush map. `ceph osd crush remove osd.5` | |
5) delete caps. `ceph auth del osd.5` | |
6) remove osd. `ceph osd rm osd.5` | |
7) delete the deployment `kubectl delete deployment -n rook-ceph rook-ceph-osd-id-5` | |
8) delete osd data dir on node `rm -rf /var/lib/rook/osd5` |
The instructions were tested on a Lenovo X1 Carbon 5th Gen (X1C5) on Arch Linux but should be applicable to other Lenovo models and Linux distributions.
BACKUP YOUR DATA! I created a bootable Ubuntu Image like this:
$ sudo sh -c 'curl --location --silent --fail "http://releases.ubuntu.com/18.04/ubuntu-18.04.1-desktop-amd64.iso" | pv > /dev/<your-usb-drive>'
# note that pv is only there to show progress, it is perfectly fine to redirect curl to the usb drive directly.
then I booted from this drive by pressing F12 on reboot and dumped my NVMe disk to an external hard drive like this: