Today a User is forced to Update daily his System or change anything to try new Software. But here mostly the Users run into very BAD PROBLEMS. I got often Calls that Users lose the control of the PC after Updates, Software Setups, Software Removal’s .. For this Linux offers a default Backup Tool, called Diskdump („dd“ command) which is on every Setup/Recover CD and Installation. Before any Changes do allways a Backup to USB Drives, Sticks or Second SATA Disk! This will save you TIME, Money, DATA and Nerves! Backup : Mount the Disk 2 on Path /mnt as […]
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Debian Ubuntu Laptop mods for SSD HDD and a full encrypted with luks
Major INFO 06-2015: Do not set tmpfs on ubuntu 15.XX or Systems with systemd!!! This block PC boot !! If you want to setup a Ubuntu/Debian Laptop with a full encrypted HDD use a „alternate“ CD/DVD. After Setup you have to change some little Parameters to extend the lifecycle of the SSD Chips disable Swap if you have more than 4GB Ram enable a RAMDISK with tmpfs for logs, caches of Browsers install cpufrequtils for CPU freqscaling install laptop-mode-tools to set powersave mode for hardware modules install xbacklight to reduce backlight energy Steps: open a Console and change to root […]
Change System Crypt Password Debian Ubuntu LVM Full Encrypted System
Solution: The new NEW Password must be set before you delete the old! – open Console! – Login as root! with #sudo -s – enter #cryptsetup -y luksAddKey /AddKey /dev/sdaX – System prompt for old Password, enter it now! – then enter new password min 8 Characters – System should show „Command Successful“ – if not search error!!!! – now delete old Password! 8 different Words can be saved! cause 8 Memory Sockets available by cryptsetup – enter to delete #cryptsetup luksDelKey /dev/sdaX 0 – 0 = First-Memory Socket !! – enter new set Password to open Socket-Database – System […]