Reading on git

Pro Git, an online book on git.
Git Magic.

Comments

Post a Comment

Popular posts from this blog

iMovie event library on a network drive, NAS

I was shocked to find that iMovie '09 would not allow storing event libraries on networked disks. The AFP volume would show up, but remain non-functional with a yellow exclamation sign. There are plenty of instructions for hacking around the limitation with clumsy symbolic links. I discovered a much simpler approach, using an undocumented (?) setting built right into iMovie:"Allow Network Volumes". Use at your own risk, try the following command in Terminal defaults write -app iMovie allowNV -bool true
Read more

Proxmox PCIe passthrough on HP gen8 - failed to set iommu for container

Problem Setting up PCIe passthrough from host to a VM was supposed to be easy. However, being an HP server, there was a bit more to it than usual. The VM simply refused to start when configured use Nvidia GPU from the host: vfio error: 0000:04:00.0: failed to setup container for group 21: failed to set iommu for container: Operation not permitted In dmesg there was a bit more background on what was wrong: fio-pci 0000:04:00.1: Device is ineligible for IOMMU domain attach due to platform RMRR requirement.  Contact your platform vendor. Luckily, HP had issued a customer advisory on this. It describes a convoluted method to disable this RMRR per slot basis. It seems to work for me, so I thought I'd write down some notes if I ever run into this again. Basic setup Proxmox has decent instructions for preparing the host for passthrough setup in general, in summary: -  add  intel_iommu=on to   GRUB_CMDLINE_LINUX_DEFAULT  in the file  /etc/default/grub - add vfio ...
Read more

Easy-rsa fails with "Missing or invalid OpenSSL"

Trying to use easyrsa on MacOS High Sierra, it failed with an error message MacBook-Air:vpn me$  EasyRSA-3.0.3/easyrsa init-pki 140736197817224:error:0E065068:configuration file routines:STR_COPY:variable has no   value:/BuildRoot/Library/Caches/com.apple.xbs/Sources/libressl/libressl-  22/libressl/crypto/conf/conf_def.c:573:line 3 Easy-RSA error: Missing or invalid OpenSSL Expected to find openssl command at: openssl This seems to be a known issue with MacOS High Sierra which has migrated to Libressl instead of Openssl, and has an easy workaround: MacBook-Air:vpn me$ EASYRSA_OPENSSL=/usr/local/Cellar/openssl/1.0.2n/bin/openssl EasyRSA-3.0.3/easyrsa init-pki init-pki complete; you may now create a CA or requests. Your newly created PKI dir is: /Users/me/Documents/vpn/pki
Read more