Hello to everyone,
I tried to follow the advice given here in the wiki on how to make a bootable USB-memory-stick. But in my case it is a hard-disk (80GB) but, I assume, this does not make a big difference.
First step: dd-command
this took between 3 and 4 hours to complete.
Second step: mkdiskimage
I tried mkdiskimage -F -4 /dev/sda 0 255 63
and got the following error-message: don't know how to determine the size of this device.
What's wrong here?
Thanks
AugustQ

$4.00
Qty 20 New Cisco QSFP-100G-FR-W2 10-3659-01 Module Hologram Brand New 20 Pack
$260.00
Cisco Acacia DP04QSDD-E25-840 400G QSFP-DD Coherent DCO Transceiver Module
$699.99
HP 669279-001 560SFP+ Ethernet 10Gb 2-Port Network Adapter Card W/SFPx2 -Both
$14.99
SFP TO RJ45 TRANSCEIVER SFP MODULE COPPER SFP OPTICAL PORT TO RJ45 ETHERNET PORT
$7.99
Intel X520-DA2 10Gb 10Gbe 10 Gigabit Network Adapter NIC Dual Port E10G42BTDA
$28.94
Genuine Cisco SFP-10G-SR 0-2415-03 10 Gigabit Transceiver
$5.40
10Gb SFP+ to RJ45 Module Copper Cat6 Transceiver Compatible w/5Gb/ 2.5Gb/ 1Gb
$31.95
Cisco SFP-10G-T-X 10G SFP 30m Transceiver 30-1599-01 w/ Hologram
$200.00
Lot of 20 Dell FTLX8571D3BCL-FC 10 Gigabit SFP+ Transceiver 10GBase-SR 0WTRD1
$59.95