Restore Asus Transformer TF101 original firmware

       413 words, 2 minutes

I have installed a custom firmware on my Asus Transformer TF101 to be able to use my 3G HSDPA USB adapter . It is running Android 3.2.1. Now that the Ice Cream Sandwich firmware (4.0) is released fot the TF101, it’s time to go back to the original, AKA stock, firmware and run the upgrade the “supported” way. According to the forums, there are two ways of doing it. Either restore the bootloader and the firmware using the ClockworkMod or use a Windows/Linux workstation to erase and replace the whole system with the official system. I choose the second option as I didn’t understand how to run the first… and the second option is quite similar to the one I used when I rooted to tab.

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Create an (IP alias / secondary administration network) on VMware ESXi

       391 words, 2 minutes

For some reasons, I need to create a secondary administration network on my ESXi servers. As I don’t need the routing stuff, I thought I’d create IP aliases as I would do with any UNIX server. But on the ESXi, it is just no possible, AFAIK. The solution is to create another VMkernel port, used for management, on the ESXi. As I don’t want to use any extra hardware, I’ll create the portgroup in the existing vSwitch. Here’s how.

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Transfer OpenBSD through the network

       531 words, 3 minutes

Last time, I transferred OpenBSD from one local disk to another . This time, I want to replicate OpenBSD from a remote working system to another, through the network.

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Using SSH keys to connect to ESXi

       77 words, 1 minutes

In VMware ESXi 5, SSH is enabled through the “Configuration / Security Profile / Services” section. When you connect using the root user, you have to specify the root password. If you want to use SSH keys, the only thing you have to do is copy them, over ssh, to a dedicated directory: # cd ~/.ssh # scp id_rsa.pub authorized_keys root@esxi:/etc/ssh/keys-root/ You can now connect to the ESXi using your SSH keys (and the `ssh-agent`). So simple!

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Raw Device Mapping of local SATA disks on ESXi

       680 words, 4 minutes

My brand new ESXi machine is a “standard” Intel Z68 powered PC. It has three disks inside: two SSD and a SATA disk. My idea is to use the first SSD to host some VM (production VM, virtual ESXi, virtual Hyper-V…) and to connect the two other disks to a FreeNAS virtual instance. This enables to present a ZFS storage to the virtual hypervisors. Here’s the way to attach two of the SATA drives to a single virtual machine using RDM technics. BTW, I’m using ESXi v5.0.0.

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