I am having an issue with the update manager on LM Cinnamon 20.
I have already had a similar issue in the past and solved it on my own but I can"t figured out this one!
Whenever I refresh the update manager through the GUI, I get the following error:
Could not download all repository indexes
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The repository may no longer be available or could not be contacted because of network problems.
If available an older version of the failed index will be used. Otherwise the repository will be ignored.
Check your network connection and ensure the repository address in the preferences is correct.
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E: Invalid record in the preferences file, no Package header
E: Unable to lock the list directory
I noticed this issue right after I installed Ubuntu's Firefox 80.01 via the Synaptic Package Manager and locked the version.
After that, I reverted this change and went back to Firefox 80 (Mint version) but it did not solve my issue.
I also tried different mirror sources but without success!
N.B: This is a fresh install and not an upgrade. Please find below some relevant details about my PC:
inxi -Fxxxrz
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System:
Kernel: 5.4.0-45-generic x86_64 bits: 64 compiler: gcc v: 9.3.0
Desktop: Cinnamon 4.6.7 wm: muffin 4.6.3 dm: LightDM 1.30.0
Distro: Linux Mint 20 Ulyana base: Ubuntu 20.04 focal
Machine:
Type: Laptop System: LENOVO product: 80QQ v: Lenovo ideapad 100-15IBD
serial: <filter> Chassis: type: 10 v: Lenovo ideapad 100-15IBD
serial: <filter>
Mobo: LENOVO model: Nano 5B6 v: NO DPK serial: <filter>
UEFI [Legacy]: LENOVO v: E0CN23WW date: 09/16/2015
Battery:
ID-1: BAT0 charge: 14.3 Wh condition: 21.3/31.7 Wh (67%) volts: 15.3/14.4
model: GC 15L4A01 type: Li-poly serial: <filter> status: Charging
CPU:
Topology: Dual Core model: Intel Core i3-5005U bits: 64 type: MT MCP
arch: Broadwell rev: 4 L2 cache: 3072 KiB
flags: avx avx2 lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx
bogomips: 15963
Speed: 798 MHz min/max: 500/1900 MHz Core speeds (MHz): 1: 798 2: 798
3: 798 4: 798
Graphics:
Device-1: Intel HD Graphics 5500 vendor: Lenovo driver: i915 v: kernel
bus ID: 00:02.0 chip ID: 8086:1616
Display: x11 server: X.Org 1.20.8 driver: modesetting unloaded: fbdev,vesa
resolution: 1366x768~60Hz
OpenGL: renderer: Mesa Intel HD Graphics 5500 (BDW GT2) v: 4.6 Mesa 20.0.8
direct render: Yes
Audio:
Device-1: Intel Broadwell-U Audio vendor: Lenovo driver: snd_hda_intel
v: kernel bus ID: 00:03.0 chip ID: 8086:160c
Device-2: Intel Wildcat Point-LP High Definition Audio vendor: Lenovo
driver: snd_hda_intel v: kernel bus ID: 00:1b.0 chip ID: 8086:9ca0
Sound Server: ALSA v: k5.4.0-45-generic
Network:
Device-1: Realtek RTL810xE PCI Express Fast Ethernet vendor: Lenovo
driver: r8169 v: kernel port: 4000 bus ID: 02:00.0 chip ID: 10ec:8136
IF: enp2s0 state: down mac: <filter>
Device-2: Realtek RTL8723BE PCIe Wireless Network Adapter vendor: Lenovo
driver: rtl8723be v: kernel port: 3000 bus ID: 03:00.0 chip ID: 10ec:b723
IF: wlp3s0 state: up mac: <filter>
IF-ID-1: tun0 state: unknown speed: 10 Mbps duplex: full mac: N/A
Drives:
Local Storage: total: 465.76 GiB used: 8.12 GiB (1.7%)
ID-1: /dev/sda vendor: Western Digital model: WD5000LPCX-24VHAT0
size: 465.76 GiB speed: 6.0 Gb/s rotation: 5400 rpm serial: <filter>
rev: 1A01 scheme: MBR
Partition:
ID-1: / size: 36.41 GiB used: 7.93 GiB (21.8%) fs: ext4 dev: /dev/sda1
ID-2: /home size: 416.20 GiB used: 193.1 MiB (0.0%) fs: ext4
dev: /dev/sda2
ID-3: swap-1 size: 4.66 GiB used: 0 KiB (0.0%) fs: swap dev: /dev/sda3
Sensors:
System Temperatures: cpu: 56.0 C mobo: N/A
Fan Speeds (RPM): N/A
Repos:
No active apt repos in: /etc/apt/sources.list
Active apt repos in: /etc/apt/sources.list.d/official-package-repositories.list
1: deb http://packages.linuxmint.com ulyana main upstream import backport
2: deb http://archive.ubuntu.com/ubuntu focal main restricted universe multiverse
3: deb http://archive.ubuntu.com/ubuntu focal-updates main restricted universe multiverse
4: deb http://archive.ubuntu.com/ubuntu focal-backports main restricted universe multiverse
5: deb http://security.ubuntu.com/ubuntu/ focal-security main restricted universe multiverse
6: deb http://archive.canonical.com/ubuntu/ focal partner
Active apt repos in: /etc/apt/sources.list.d/phoerious-keepassxc-focal.list
1: deb http://ppa.launchpad.net/phoerious/keepassxc/ubuntu focal main
Active apt repos in: /etc/apt/sources.list.d/qbittorrent-team-qbittorrent-stable-focal.list
1: deb http://ppa.launchpad.net/qbittorrent-team/qbittorrent-stable/ubuntu focal main
Info:
Processes: 206 Uptime: 16m Memory: 3.76 GiB used: 1.52 GiB (40.4%)
Init: systemd v: 245 runlevel: 5 Compilers: gcc: 9.3.0 alt: 9 Shell: bash
v: 5.0.17 running in: gnome-terminal inxi: 3.0.38
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Hit:1 http://archive.ubuntu.com/ubuntu focal InRelease
Hit:2 http://ppa.launchpad.net/phoerious/keepassxc/ubuntu focal InRelease
Get:3 http://archive.ubuntu.com/ubuntu focal-updates InRelease [111 kB]
Ign:4 http://packages.linuxmint.com ulyana InRelease
Hit:5 http://archive.canonical.com/ubuntu focal InRelease
Hit:6 http://security.ubuntu.com/ubuntu focal-security InRelease
Hit:7 http://ppa.launchpad.net/qbittorrent-team/qbittorrent-stable/ubuntu focal InRelease
Hit:8 http://packages.linuxmint.com ulyana Release
Get:9 http://archive.ubuntu.com/ubuntu focal-backports InRelease [98.3 kB]
Fetched 210 kB in 2s (102 kB/s)
Reading package lists... Done
Building dependency tree
Reading state information... Done
All packages are up to date.
Regards,