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@Kautenja
Kautenja / tar-progress.md
Last active June 18, 2025 19:38
one-liners for using tar with gzip and pv for a progress bar

Compress

tar cf - <files> -P | pv -s $(du -sb <files> | awk '{print $1}') | gzip > <some .tar.gz file>

where:

  • `` is the root-mounted (i.e. starts with /) path to the files
@mcastelino
mcastelino / VFIO_nested.md
Last active June 18, 2024 22:25
QEMU VFIO in Nested VM vIOMMU

How to use VFIO to assign a device to nested VM

  • Here the vfio-pci device is passed in into the L1 VM
  • The L1 VM is setup with kernel_irqchip=split
  • The L0 exposes a virtual IOMMU to the L1 VM
qemu-system-x86_64 \
    -machine q35,accel=kvm,kernel_irqchip=split \
    -enable-kvm \
@al3xtjames
al3xtjames / SSDT-DBG.dsl
Last active January 15, 2025 21:45
DefinitionBlock ("", "SSDT", 1, "APPLE ", "Debug", 0x00001000)
{
/*
* Many OEM ACPI implementations have a ADBG function which is used for
* debug logging. In almost all cases, this function calls MDBG, which is
* supposed to be defined in a ACPI debug SSDT (but is usually missing).
* This should make ADBG functional.
*/
Method (MDBG, 1, NotSerialized)
{
@varhub
varhub / Android - Enable ADB from recovery.md
Created December 23, 2016 17:54
Android - Enable ADB from recovery

Android - Enable ADB from recovery

Credits to @TheOnlyAnil-@Firelord[^stackoverflow]

  • Requirements: a) stock recovery + rooted phone b) custom recovery

  • Files changed:

@StefanoBelli
StefanoBelli / disable_gpe6F.service
Last active October 29, 2024 07:21
Temporary fix for ACPI (GPE iinterrupts) failure , disable GPE6f interrupts, probably motherboard faulty ACPI implementation (reflash/update BIOS) [[!!You should take action!!]]. Install this in /usr/lib/systemd/system and run systemctl enable disable_gpe6F
[Unit]
Description=Disable GPE6F interrupts
[Service]
Type=oneshot
ExecStart=/bin/bash -c "echo disable > /sys/firmware/acpi/interrupts/gpe6F"
[Install]
WantedBy=multi-user.target
@KarthikNayak
KarthikNayak / a.md
Last active February 2, 2025 08:22
Installing Arch with LVM
@spalladino
spalladino / mysql-docker.sh
Created December 22, 2015 13:47
Backup and restore a mysql database from a running Docker mysql container
# Backup
docker exec CONTAINER /usr/bin/mysqldump -u root --password=root DATABASE > backup.sql
# Restore
cat backup.sql | docker exec -i CONTAINER /usr/bin/mysql -u root --password=root DATABASE
@shamil
shamil / mount_qcow2.md
Last active August 30, 2025 00:07
How to mount a qcow2 disk image

How to mount a qcow2 disk image

This is a quick guide to mounting a qcow2 disk images on your host server. This is useful to reset passwords, edit files, or recover something without the virtual machine running.

Step 1 - Enable NBD on the Host

modprobe nbd max_part=8