Introduction This article is recorded in February 2025 and is documented here. In the production environment, one of the business system servers has had its memory consistently around 95% for the past few months. Last year, this system was reported as an innovative system, so preparations for the innovative components began right after the New … Read more
#Linux #GRUB Practical RecoveryFault Phenomenon and Root Cause Analysis After a system upgrade or unexpected power outage, the following prompt appears on boot: error: symbol 'grub_is_lockdown' not found. Entering rescue mode… grub rescue> This issue is common in Debian/Ubuntu system upgrade scenarios and is essentially a compatibility problem with the GRUB package or file corruption. … Read more
For many Android devices with low specifications, the performance and smoothness of the system have always been a pain point. Despite the significant overall improvement in specifications of Android devices over the past two years, this also means the accelerated elimination of older models. A few days ago, at the Google I/O developer conference, Google … Read more