李二狗 — @Meniny
A Developer's Faux Pas
Apr
30
Copy Fail：732字节即可在所有主流Linux发行版上获得Root权限
Published 10:04 Apr 30, 2026 by @ezra.
#UNIX/Linux# 近期 Xint 披露了一个影响几乎所有主流 Linux 发行版的严重内核漏洞，其编号为 CVE-2026-31431，代号 “Copy Fail”。
漏洞概述
Copy Fail 是 Linux 内核...
Oct
27
Fedora 43 Issue: Installer crashes when btrfs subvolume gets reformatted while having nested subvolumes
Published 23:10 Oct 27, 2025 by @ezra.
#UNIX/Linux# Issue
In Fedora 43, if you run the installer from the desktop Live install media (thus using the “we...
Aug
03
Proxmox QXL failed to allocate
Published 00:08 Aug 03, 2025 by @ezra.
#UNIX/Linux# qxl 0000:00:01.0: object_init failed for (4096, 0x00000001)
[TTM] Buffer eviction failed
[drm:qxl_ge...
May
07
Chroot to Reinstall GRUB
Published 18:05 May 07, 2025 by @ezra.
#UNIX/Linux# mount
ext4
sudo mkdir -p /mnt/chroot
sudo mount /dev/sdb3 /mnt/chroot
sudo mkdir -p /mnt/chroot/boo...
May
07
Fedora: update-grub
Published 18:05 May 07, 2025 by @ezra.
#UNIX/Linux# grub-install:
#!/bin/bash
grub2-install --efi-directory=/boot/efi --bootloader-id=fedora --recheck
...
Jan
21
How to Update Linux Mint
Published 11:01 Jan 21, 2025 by @ezra.
#UNIX/Linux# Linux Mint 22.1 Xia just released.
To update your Linux Mint to 22.1 Xia, you need to:
Backup your ...
Jan
07
How to scroll inside GNU/screen
Published 09:01 Jan 07, 2025 by @ezra.
#UNIX/Linux# Screen has its own scroll buffer, as it is a terminal multiplexer and has to deal with several buffe...
Sep
09
Cannot Install Balena Etcher on Ubuntu 24.04
Published 20:09 Sep 09, 2024 by @ezra.
#UNIX/Linux# Trying to install these packages leads to the following errors:
E: Package 'gconf-service' h...
Jul
28
How Do I Properly Install KVM on Linux
Published 17:07 Jul 28, 2024 by @ezra.
#UNIX/Linux# The Kernel-based Virtual Machine (KVM) is a Linux hypervisor that supports full virtualization. When...
May
31
Help! Linux ate my RAM
Published 03:05 May 31, 2024 by @ezra.
#UNIX/Linux#
What’s going on?
Like all modern operating systems, Linux is borrowing unused memory for
di...
May
20
Fix Error /etc/mailcap is not in required format
Published 00:05 May 20, 2024 by @ezra.
#UNIX/Linux# So I got this error when I ran a "apt upgrade" command:
Error: '/etc/mailcap' is not in requ...
May
17
Remove empty directory trees
Published 02:05 May 17, 2024 by @ezra.
#UNIX/Linux# Suppose I have a dir tree like this:
ROOTDIR
└--SUBDIR1
└----SUBDIR2
└----SU...
