cryptsetup close CRYPT Fails With "Device CRYPT is still in use."
Problem: after unmounting a LuKS crypted device, "cryptsetup close" fails with "Device is still in use", even though it is not mounted anymore. ...
Posts tagged "Debian"
Pip Python TLS/SSL issues?
Problem: When installing any package with pip in a venv python environment you get this error: WARNING: pip is configured with locations that require TLS/SSL, however the ssl module in Python is not available. We got this error on a Linux Debian machine, that had the latest Debian Bookworm running, but was an older ...
DMAR Kernel Log Errors and RAID Controller Crash
Problem: After upgrading an old HP ProLiant DL320 G6 Server to Linux kernel 6.1 (Devuan 5, Debian12) the system crashes during reboot. You will see the following kernel output: DMAR: DRHD: handling fault status reg 2 DMAR: [DMA Read] Request device [00:1e.0] PASID ffffffff fault addr df63e000 [fault reas...
Interface down on Cisco Nexus switch with "dcxNoACKi"
Problem: After an update of a server to Devuan4/Debian11 the switch shuts down the interfaces to the server with status "dcxNoACKi" 48 minutes after the reboot. Discussion: the switch is a Cisco Nexus 5000 switch. It implements "Data Center Bridging Capability Exchange (DCBX)". The server is a Dell server with X710 C...
Smartd Reports "Reallocated_Sector_Ct" erroneously
Problem: In syslog you find a line like this: smartd[1514]: Device: /dev/sda [SAT], Failed SMART usage Attribute: 5 Reallocated_Sector_Ct. But when you check with "smartctl -a" you find a reallocated sector count of zero: # smartctl -a /dev/sda ... ID# ATTRIBUTE_NAME FLAG TYPE UPDATED WHEN_FAILED RAW_VALUE 5...
Devuan4/Debian11 usability annoyances
Problem: When pasting commands to the shell, the shell no longer executes the command but shows the pasted text highlighted and shows the line feed but does not process it. Discussion: Devuan4 and Debian11 upgraded the readline library with a new default "feature" that should prevent noobs from accidentally pasting...
Devuan / Debian Versions
Admins who prefer a Unix-style operating system and don't like the centralized "one tool doing it all" approach of systemd, switch to Devuan. This mostly improves uptime over boot time. Admins of servers don't care about boot time and prefer uptime. This list keeps track of the related versions of Devuan and Debian....
DHCP Relay on Linux
DHCP relaying is used to forward DHCP requests to a DHCP server if the client and the server are not on the same network. One standard implementation of this is isc-dhcp-relay which is part of the isc-dhcp package. Problem: The dhcrelay is forwarding the dhcp request to the dhcp server and the dhcp server is respond...
LS Style After Devuan 3 or Debian 10 Update
After Devuan 3 update ls output showed characters that are not really in the directory listing. The reason is that "ls" draws quotes around filenames with spaces. This is a bug from my point of view, ls should never change the actual filenames. If a filename has quotes or double quotes it's even weirder. "ls" adds...
Time Format after Devuan 3 and Debian 10 Update
After updating to Devuan 3 the date command shows 12 hours am/pm but my days have 24 hours. The locale was always en_US.UTF8 to keep sane command and error output. Debian 10 thinks they had to fix the correct hour display to the complicated one. Therefore all sysadmins like me have to apply the following workaround, t...