Browse incidents, troubleshooting guides, AI diagnostics, verified fixes and community discussions related to Bash.
## Environment Ubuntu 22.04 LTS VM (cloud image) running systemd 249; custom service moved from /lib/systemd/system/myapp.service to /etc/systemd/system/myapp.service; ExecStart=/usr/local/bin/myapp-start.sh; script owned by root:root, mode 750; ser...
## Environment PostgreSQL 13.5 running on Ubuntu 20.04 LTS; primary host: db-primary (4 vCPU, 8GB RAM); WAL archive_command used to copy files to /backups/wal; nightly filesystem snapshot job runs on secondary storage ## Symptoms WAL archiving sto...
## Environment Debian 12 server with mdadm RAID1 composed of two 2TB SATA disks: one internal (sda) and one in an external USB hot-swap enclosure (sdb). mdadm 4.2, kernel 6.1. After accidental power loss to the enclosure while OS running, the extern...
## Environment MacBook Pro 16-inch (Apple silicon, macOS 13.4), bus-powered USB‑C hub (no external power) with a Samsung T7 NVMe enclosure attached. Finder shows SSD formatted APFS. SMC-equivalent (for Apple silicon) not user-accessible; NVRAM and S...
## Environment Primary PostgreSQL 13 on Ubuntu 20.04, wal_level=replica, archive_mode=on, archive_command='bash /opt/pg/archive-wal.sh %p %f', WALs archived to NFS mount /mnt/pg_archive; cron-driven logrotate runs daily at 02:00. ## Symptoms WAL a...
## Environment Ubuntu Server 22.04 systems using chrony (chronyd) to sync time to an internal NTP server. Servers run multiple cron jobs scheduled at precise minutes (system crontab and root's crontab). Recently observed during a network outage when...
## Environment Dell XPS 13 developer laptop running Ubuntu 22.04 with Linux kernel 5.15 and Broadcom BCM4360 chipset using the proprietary broadcom-sta (wl) driver; NetworkManager managing connections; laptop suspend/resume via S3. ## Symptoms Aft...
## Environment Ubuntu 20.04 clients mounting NFSv4 exports from an HA storage cluster (two-node active/passive). Mounts configured in /etc/fstab using server virtual IP and automount via autofs on some hosts. Server cluster performed a planned failo...
## Environment Desktop: Ubuntu 22.04 LTS, original boot drive (NVMe) cloned bit-for-bit to a second NVMe using dd; both NVMe present in system and boot order set to new NVMe; system uses LUKS-encrypted root with a separate /home LVM logical volume. ...
## Environment ASUS ROG Strix Z690-G (BIOS 3801), Intel i7-12700K, 32 GB DDR4, Primary NVMe Samsung 970 EVO Plus in M.2_1, Crucial MX500 M.2 SATA in M.2_2, power supply Corsair RM750x, Windows 11 on NVMe ## Symptoms With the Crucial MX500 installe...