[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
New Precision DWDM SFP+ 10G 80km Tunable Transceiver 50GHz C-Temp DWDM-SFP10G-C
$90.00
Lot (10) Dell 0N8TDR 850nm SFP-10G-SR-85C 10Gbs sfp+ FTLX8574D3BNL-FC N8TDR NEW
$68.00
SFP-10G-SR CISCO 10G SR SFP+ C-CLASS TRANSCEIVER 10 PACK
$99.00
ProLabs 10GBase-TX SFP+ RJ-45 Copper Transceiver Module P/N: SFP-10GBASE-T-C NEW
$34.99
CISCO SFP-10G-LR SFP TRANSCEIVER MODULE GBIC 10G 10GB SFP - 1 Year Warranty
$39.99
Cisco CVR-QSFP-SFP-10G Com (New With Hologram in Clamshell )
$120.00
IPOLEX ASF-10G-T 10GBase-T 10GbE SFP+ to RJ-45 Copper Optical Transceiver Module
$35.99
Genuine Cisco SFP-10G-SR V03 10GBASE-SR SFP+ Transceiver Module 10-2415-03
$8.00
New HP HPE Aruba J9150D 10G SFP+ LC SR 850nm 300m MMF XCVR Transceiver Module
$45.99
New Cisco w/ Green Hologram SFP-25G-SR-S 25G SFP28 SR 850nm 300m LC MMF Module
$64.39