[Solved] Use apt-get update as a super-user to have synaptic working
As usual I use unpacked KNOPPIX_V8.6.1-2019-10-14-EN.iso and booted with Grub to create a persistent system. In general, I have long been using synaptic to install additional software persistent across multiple reboots.
With the current version, I have run into an issue. I get the notice from synaptic:
I checked the /etc/apt/sources.listE: The value 'stable' is invalid for APT::Default-Release as such a release is not available in the sources
E: _cache->open() failed, please report.
The keyword 'stable' shouldn't be an issue, but is presently. Shall the keywords be replaced by exact words? Like stable=buster, oldstable=stretch, unstable=Sid, oldoldstable=jessie and so on?
[Solved] Use apt-get update as a super-user to have synaptic working
Cisco Catalyst C9300-24UX-A 24 Port 10G/mGig Copper UPOE Network Switch
$499.00
Cisco WS-C2960X-48FPD-L 48 V07 POE+ GE+2 10G SFP+, LAN BASE 740W w/ C2960X-Stack
$140.00
LOT OF 20 Genuine Cisco SFP-10G-SR V03 10GBASE-SR SFP+ Transceiver Module
$95.00
Cisco Catalyst WS-C2960X-24PD-L GigE PoE 370W, 2 x 10G SFP+, LAN Base w/C2960X-S
$114.00
Cisco C3850-NM-2-10G 2 Port Network Exp.Module for 3850
$30.99
Cisco WS-C2960S-F48LPS-L 2960S Series 48 Port Gigabit Switch, 1 Year Warranty
$27.50
Cisco C3850-NM-4-10G 4 Port Network Exp.Module for 3850
$124.90
CISCO SFP-10G-LR SFP TRANSCEIVER MODULE GBIC 10G 10GB SFP - 1 Year Warranty
$39.99
Cisco Nexus N9K-C9372TX 48P 10G Gigabit Ethernet 6x QSFP+ 40G Switch 2x650W PSU
$199.99
Cisco Nexus N9K-C93108TC-EX 48-Port 10G RJ-45 6x100G QSFP Network Switch W/Ears
$499.99