Fulltext results:
- btrfs @linux:filesystems
- tadata usage. btrfs fi df /home/ see, if the device was full: btrfs filesystem show for example:... ! and only ~23GB free. balance required! Total devices 2 FS bytes used 2.67TiB devid 1 size 3.51Ti... ize 3.51TiB used 3.28TiB path /dev/sdb4 if the device was full, reorder chunks - kind of defrag: btr... == btrfs RAID ===== **If you run a RAID1 and one device crashs, you have a problem! The device cannot be
- Crypto @linux:filesystems
- ebian squeeze **replace sdX and sdY with the hdd devices of your choice - choose careful!** run **badbl... sdxy ---- \\ **Create partitions** on //two// devices * mark them with the type code **FD** * all... y:** mdadm --create /dev/md0 --level=1 --raid-devices=2 /dev/sdX1 /dev/sdY1 This creates a RAID 1. Choose a free device number for X in /dev/mdX The device will be crea
- Performance
- ====== ===== Check Schedulers ===== cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_govern... cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq =====... echo "governor in use:" getgov=$(cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor) c
- Bootloader @linux:filesystems
- Generating grub configuration file ... WARNING: Device /dev/ram0 not initialized in udev database even a... v ===== Crypto Bugs ===== Grub complains root device couldn't be found Fix: - set GRUB_ENABLE_CR... update-grub If update-grub echos: "cannot find device for / in fstab" and you have a btrfs rootsys:
- Crash Recovery
- es not boot anymore, **you can open the encrypted device anyway with a live system** on USB stick or CD. ... ps://askubuntu.com/questions/567730/gave-up-waiting-for-root-device-ubuntu-vg-root-doesnt-exist#567897
- LXC @linux:virtualization
- king#Bridged_networking_.28aka_.22shared_physical_device.22.29 * ARP debugging http://www.claudiokuenzle... .x.x.254 bridge_ports eth0 # add these devices to bridge (can be eth0 eth1 ..) bridge_s
- Multiboot Stick @linux:filesystems
- root (su / sudo -i) * attach usb stick * find device of the stick fdisk -l *replace sdX by the usbstick device you found in the next steps! * mount stick
- Lenovo X13 @linux:machines
- ents in fcc_unlock.c appropriately #define MBIM_DEVICE_PATH "/dev/wwan0p2MBIM" #define MBIM2SAR_SO_PAT
- RAID @linux:filesystems
- s up: mdadm --detail /dev/md1 re-add a removed device: mdadm /dev/md1 --add /dev/sda2 watch revover
- Filesystems
- controller [0106]: Marvell Technology Group Ltd. Device [1b4b:9125] (rev 11) Associate ID with the AHCI
- Access Point - hostapd @linux:network
- **First test:** #change wlan0 to your wireless device interface=wlan0 driver=nl80211 ssid=test