Paweł Szaga home page
To increase USB polling rate under Linux: Check current value: cat /sys/module/usbhid/parameters/mousepoll #or systool -avm usbhid Change temporary: echo 2 > /sys/module/usbhid/parameters/mousepoll Then disconnect the mouse from the USB port and plug it in again To make it permanent add above line to /etc/rc.local echo 'echo 2 > /sys/module/usbhid/parameters/mousepoll' >> /etc/rc.local Values meaning: 1 -… Continue reading Linux - increase USB mouse pooling
restore "Fedora" entry using efibootmgr boot your favourite Linux distro in UEFI mode restore "Fedora" entry using efibootmgr #assuming that /dev/sda is your drive, and /dev/sda1 is UEFI partition sudo efibootmgr -c -L "Fedora" -l \\EFI\\fedora\\shimx64.efi -d /dev/sda -p 1 restore "Windows Boot Manager" entry using efibootmgr boot your favourite Linux distro in UEFI mode… Continue reading UEFI - Linux and Windows dual boot - tips
Steps to mount locally *.img disk (SD card) image file: #analyze image losetup -P /dev/loop0 raspbian.img #list available partitions ls -lht /dev/loop* #mount partitions mount /dev/loop0p2 /mnt mount /dev/loop0p1 /mnt/boot
To resize partition and XFS file system under Linux OS after physical/virtual disk resize: #check current storage layout lsblk #resize "1" partition on /dev/vda disk device growpart /dev/vda 1 #resize XFS file system xfs_growfs /dev/vda1
Check CPU Vulnerabilities under Linux cat /sys/devices/system/cpu/vulnerabilities/spectre_v2 cat /sys/devices/system/cpu/vulnerabilities/l1tf cat /sys/devices/system/cpu/vulnerabilities/spec_store_bypass cat /sys/devices/system/cpu/vulnerabilities/spectre_v1 cat /sys/devices/system/cpu/vulnerabilities/meltdown