Odroid-C4: Failed to start systemd-sysctl.service - Apply Kernel Variables.?

[rin]

# uname -a
Linux odroidc4 6.6.63-current-meson64 #1 SMP PREEMPT Fri Nov 22 14:38:37 UTC 2024 aarch64 aarch64 aarch64 GNU/Linux

Installed latest "Armbian_24.11.1_Odroidc4_noble_current_6.6.60-kisak.img"

...with latest sudo apt update; sudo apt upgrade, rebooted...

Hardware:

- Odroid-C4

- Sabrent USB 3.0 to 2.5-Inch SATA Adapter; Model: EC-SSHD with latest firmware patch,  connected to a Kingston SSD: SA400S37480G

 

# dmesg -l emerg,alert,crit,err
[    0.879290] meson-drm ff900000.vpu: DSI transceiver device is disabled
[    3.402246] systemd[1]: Failed to start systemd-sysctl.service - Apply Kernel Variables.
[    4.327154] panfrost ffe40000.gpu: error -ENODEV: _opp_set_regulators: no regulator (mali) found
[    4.871183] systemd[1]: Failed to start systemd-sysctl.service - Apply Kernel Variables.
[    5.093021] I/O error, dev sda, sector 2064 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2
[    5.098203] I/O error, dev sda, sector 2088 op 0x0:(READ) flags 0x80700 phys_seg 2 prio class 2
[    5.098226] I/O error, dev sda, sector 2120 op 0x0:(READ) flags 0x80700 phys_seg 6 prio class 2
[    5.102570] Buffer I/O error on dev sda1, logical block 2, async page read
[    5.111428] Buffer I/O error on dev sda1, logical block 2, async page read

I'm not worried about vpu, or panfrost errors, ..., since I don't care about gpu on this headless (non-desktop) cli mini-server.

 

# dmesg | grep -i systemd-sysctl
[    3.331877] systemd[1]: Starting systemd-sysctl.service - Apply Kernel Variables...
[    3.399999] systemd[1]: systemd-sysctl.service: Main process exited, code=exited, status=1/FAILURE
[    3.400501] systemd[1]: systemd-sysctl.service: Failed with result 'exit-code'.
[    3.402246] systemd[1]: Failed to start systemd-sysctl.service - Apply Kernel Variables.
[    4.822476] systemd[1]: Starting systemd-sysctl.service - Apply Kernel Variables...
[    4.870046] systemd[1]: systemd-sysctl.service: Main process exited, code=exited, status=1/FAILURE
[    4.870601] systemd[1]: systemd-sysctl.service: Failed with result 'exit-code'.
[    4.871183] systemd[1]: Failed to start systemd-sysctl.service - Apply Kernel Variables.

 

I checked /etc/sysctl.conf, and everything looks ok, afaik.?
 

# cat /etc/sysctl.conf
#
# /etc/sysctl.conf - Configuration file for setting system variables
# See /etc/sysctl.d/ for additional system variables.
# See sysctl.conf (5) for information.
#

#kernel.domainname = example.com

# Uncomment the following to stop low-level messages on console
#kernel.printk = 3 4 1 3

###################################################################
# Functions previously found in netbase
#

# Uncomment the next two lines to enable Spoof protection (reverse-path filter)
# Turn on Source Address Verification in all interfaces to
# prevent some spoofing attacks
#net.ipv4.conf.default.rp_filter=1
#net.ipv4.conf.all.rp_filter=1

# Uncomment the next line to enable TCP/IP SYN cookies
# See http://lwn.net/Articles/277146/
# Note: This may impact IPv6 TCP sessions too
#net.ipv4.tcp_syncookies=1

# Uncomment the next line to enable packet forwarding for IPv4
#net.ipv4.ip_forward=1

# Uncomment the next line to enable packet forwarding for IPv6
#  Enabling this option disables Stateless Address Autoconfiguration
#  based on Router Advertisements for this host
#net.ipv6.conf.all.forwarding=1


###################################################################
# Additional settings - these settings can improve the network
# security of the host and prevent against some network attacks
# including spoofing attacks and man in the middle attacks through
# redirection. Some network environments, however, require that these
# settings are disabled so review and enable them as needed.
#
# Do not accept ICMP redirects (prevent MITM attacks)
#net.ipv4.conf.all.accept_redirects = 0
#net.ipv4.conf.default.accept_redirects = 0
# _or_
# Accept ICMP redirects only for gateways listed in our default
# gateway list (enabled by default)
# net.ipv4.conf.all.secure_redirects = 1
#
# Do not send ICMP redirects (we are not a router)
#net.ipv4.conf.all.send_redirects = 0
#
# Log Martian Packets
#net.ipv4.conf.all.log_martians = 1
#

###################################################################
# Magic system request Key
# 0=disable, 1=enable all, >1 bitmask of sysrq functions
# See https://www.kernel.org/doc/html/latest/admin-guide/sysrq.html
# for what other values do
#kernel.sysrq=438

Swappiness for zram, see swapon
vm.swappiness=100
# Decrease swap usage to a more reasonable level
#vm.swappiness=30
#
# Improve cache management
#vm.vfs_cache_pressure=50
#
# Improve writing to external media like USB memory sticks
#vm.dirty_bytes=335544320
#vm.dirty_background_bytes=167772160
#

 

-------------------------------

For the sake of brevity, I'm only running "transmission-daemon" on this successfully -sort of, with everything else being the default Armbian server settings, ...

see:

 

with:

# cat /etc/udev/rules.d/99-usb-drive.rules
ENV{ID_FS_UUID}=="501ce172-bc60-40db-90b6-9e025d2748bb", ACTION=="add", RUN{program}+="/usr/bin/systemd-mount --type=ext4 --no-block --collect $devnode /media/USB01/"

 

...so as to mount my USB-SSD-drive upon boot. But that's for another topic,

since the "Failed to start systemd-sysctl.service - Apply Kernel Variables." were there before, and nothing else was changed.

 

Basically, are the errors in my "dmesg" output above anything to really worry about.?

 

 

 

Edited yesterday at 02:53 PM by rin
fix some syntax again