Monthly Archives: August 2018
ThinkPad Edge E530
Optik / Objektiv / Linse / Mikroskopie
Optik
EFL | Effective Focal Length | Effektive Brennweite |
FL | Focal Length | Brennweite |
f/#, FA | Focal Aperture | Blendenöffnung |
HFOV | Horizontal Field of View | Horizontales Sichtfeld |
DOF | Depth of Field | Schärfentiefe |
FFC | Flat-Field Correction | Flat-Field Korrektur |
Linsen
2.3 mm, f/1.0, 92deg Brennweite, Blendenöffnung, Horizontales Sichtfeld (HFOV)
Geometrische Optik / Strahlenoptik
Gauß-Strahl
Linsengleichung
Gegenstandsweite
Bildweite
Brennweite
Sichtfeld (FOV)
Schärfentiefe (DOF)
Sichtweite
Bildwinkel
Lichtstärke (= Blende)
Okular
Normalobjektiv
Teleobjektiv
Formelsammlung Physik: Optik: Geometrische Optik
English
Focal length (Brennweite)
Field of view (FOV), (Sichtfeld)
Depth of field (DOF) (Schärfentiefe)
Blende, Fokus, Schärfentiefe einfach erklärt – Fotografie Grundlagen 1 – HD
Brennweite, Belichtungszeit, Bewegungsunschärfe einfach erklärt – Fotografie Grundlagen 2 – HD
Crop-Faktor, ISO Wert, Bildrauschen einfach erklärt – Fotografie Grundlagen 3 – HD
Mikroskopie
Durchlichtmikroskop
Auflichtmikroskopie
Konfokalmikroskop
Laser-Scanning-Mikroskop
LinuxMint 19: grub-efi-amd64-signed failed to install
Monthly News – July 2018
Grub EFI amd 64 signed signed package fails on clean install mint 19
Installer Crashed with Error: the grub-efi-amd64-signed package failed to install into /target/ linux mint
sudo mount /dev/sdXXX /mnt sudo mount /dev/sdXX /mnt/boot/efi sudo mount -t efivarfs efivarfs /sys/firmware/efi/efivars for i in /dev /dev/pts /proc /sys /run; do sudo mount -B $i /mnt$i; done sudo chroot /mnt grub-install /dev/sdX or grub-install -v --target=x86_64-efi --recheck /dev/sdX update-grub
$ grub-install -v --target=x86_64-efi --recheck /dev/sdX [...] grub-install: info: Registering with EFI: distributor = `ubuntu', path = `\EFI\ubuntu\shimx64.efi', ESP at hostdisk//dev/sda,gpt1. grub-install: info: executing efibootmgr --version </dev/null >/dev/null. grub-install: info: executing modprobe -q efivars. grub-install: info: executing efibootmgr -b 0001 -B. BootCurrent: 0002 Timeout: 1 seconds BootOrder: 0002,0000 Boot0000* Diagnostic Program Boot0002* ubuntu grub-install: info: executing efibootmgr -b 0002 -B. BootCurrent: 0002 Timeout: 1 seconds BootOrder: 0000 Boot0000* Diagnostic Program grub-install: info: executing efibootmgr -c -d /dev/sda -p 1 -w -L ubuntu -l \EFI\ubuntu\shimx64.efi. BootCurrent: 0002 Timeout: 1 seconds BootOrder: 0001,0000 Boot0000* Diagnostic Program Boot0001* ubuntu Installation finished. No error reported.
Secure Boot Error: Invalid signature detected. Check secure boot policy in setup
Linux Mint Installation Guide – EFI SecureBoot
$ sudo efibootmgr -v BootCurrent: 0001 Timeout: 1 seconds BootOrder: 0002,0001,0000 Boot0000* Diagnostic Program MemoryMapped(11,0xca89e004,0xcb1cb003)/FvFile(6f1cf8df-2398-4b3b-aaa6-35d97d4a76e9) Boot0001* ubuntu HD(1,GPT,2c027cf1-db3e-45e0-becb-a3224a6a7662,0x800,0x80000)/File(\EFI\ubuntu\shimx64.efi) Boot0002* Ubuntu Boot Manager HD(1,GPT,2c027cf1-db3e-45e0-becb-a3224a6a7662,0x800,0x80000)/File(\EFI\ubuntu\grubx64.efi).. $ sudo efibootmgr -o 0001,0002 BootCurrent: 0001 Timeout: 1 seconds BootOrder: 0001,0002 Boot0000* Diagnostic Program Boot0001* ubuntu Boot0002* Ubuntu Boot Manager
Read-only file system
$ sudo grub-install --target=x86_64-efi Installing for x86_64-efi platform. grub-install: error: cannot open `/boot/efi/EFI/ubuntu/grubx64.efi': Read-only file system. $ sudo mount -o remount,rw /boot/efi $ sudo apt-get install grub-common grub-efi-amd64 grub-efi-amd64-bin grub-efi-amd64-signed grub2-common grub2-theme-mint mint-meta-cinnamon mint-meta-core os-prober ??? $ sudo apt-get install shim-signed
$ lsblk -f NAME FSTYPE LABEL UUID MOUNTPOINT sda ├─sda1 vfat GPT-BOOT E9CE-9FC2 /boot/efi ├─sda2 ├─sda3 ntfs 48A0C580A0C574CA ├─sda4 ntfs 3E38754C387503E5 ├─sda5 ext4 27c3c697-3dca-4a68-9709-5b59f20955b0 / ├─sda6 vfat EFISYS BD41-11EE ├─sda7 ufs 5d349a66b8ac1be8 ├─sda8 └─sda9 swap 6a1747ad-120c-4c65-9062-2bb4eb071168 [SWAP] sr0
nvidia-driver-390
nvidia-compute-utils-390 nvidia-dkms-390 nvidia-driver-390 nvidia-kernel-common-390 nvidia-kernel-source-390 nvidia-prime nvidia-prime-applet nvidia-settings nvidia-utils-390
$ sudo apt-get install shim-signed [...] After this operation, 0 B of additional disk space will be used. Setting up shim-signed (1.37~18.04.8+15+1552672080.a4a1fbe-0ubuntu2) ... Installing for x86_64-efi platform. Installation finished. No error reported. Generating a new Secure Boot signing key: Can't load /var/lib/shim-signed/mok/.rnd into RNG 140070714560960:error:2406F079:random number generator:RAND_load_file:Cannot open file:../crypto/rand/randfile.c:88:Filename=/var/lib/shim-signed/mok/.rnd Generating a RSA private key .........................................................................................................................+++++ .................................................+++++ writing new private key to '/var/lib/shim-signed/mok/MOK.priv' ----- -------- Uninstall Beginning -------- Module: nvidia Version: 390.143 Kernel: 4.15.0-142-generic (x86_64) ------------------------------------- Status: Before uninstall, this module version was ACTIVE on this kernel. nvidia.ko: - Uninstallation - Deleting from: /lib/modules/4.15.0-142-generic/kernel/drivers/char/drm/ [...] depmod... DKMS: install completed. This system doesn't support Secure Boot Secure Boot not enabled on this system. W: APT had planned for dpkg to do more than it reported back (0 vs 4). Affected packages: shim-signed:amd64