How to brush OpenMediaVault for Lazy Cat Micro-Service

Lazy cat mini-server It's a good nas system，CEO Yes Deepin Linux The author of the boss，Solid machine workmanship，System design innovation，Worth buying。

but

For me who is overseas，Still not close enough to daily use scenarios。Especially their main focus on intranet penetration and server transit，And cooperating with ladders, etc.，I can't even use it，So，The value of the lazy cat system has been discounted to me。Plus, two-way interference from GFW firewall，Causes the mirror server to be good and bad。And because Lazy Cat's system is highly customized，Although very innovative and convenient，But there are too many permission restrictions，It is difficult to customize every aspect，This makes it difficult for me, a user who is used to "native" to adapt to it。

So in the end I decided to make it a serious NAS system，In line with my daily usage habits。

Replace the hard drive

Lazy cat mini-server The system is not disclosed，So you can't put it back after reinstalling the system，So if necessary，Buy another one NVME The hard drive will be more realistic，This way you can switch the system disk at any time (you can also install TrueNAS，There are also various docker apps，Also updated in time)。of course，If you are in the country，There are probably no worries about this，Just take one or two days to send it to the factory。

It's easier to disassemble the hardware，Bottom of the shell 4 Hexagonal screws removed，You can open the cover...and then 8 Phillips screw，After removing it, you canBack plate directionPull out the motherboard。

I would recommend using an electric screwdriver，Because their screws are long，Have a break in the middle，Tired wrists。In addition, whether it is electric or manual，Prepare a large torque (long neck) screwdriver，Otherwise, the short head may not be easy to disassemble the motherboard.。

At this time you will see two layers of motherboard and your hard drive，Carefully unplug your hard drive cable，Until this step，You can find the official customer service to get a video tutorial on hard disk replacement，No big problem (note，hard diskDo not needTake it down，Just stay in place)。

The point is next，have 4 Phillips screws are used to fix the motherboard to a metal frame，Remove and flip the motherboard and place the hard disk below，Be careful to shake the motherboard to loosen it，But don't take it out。

The two motherboards are connected through a socket，After loosening the motherboard, try moving the upper motherboard to separate them.。

note：There are welding and pasted flying wires between the motherboards and the inner test of the backboards.，Don't force it，Nor removable，You can only open the upper motherboard like you flip a book。

But that's enough，Now you can disassemble and replace the NVME hard drive。

Reversely repeat after replacement，First cover the upper motherboard，Insert on the lower motherboard，Then shake the motherboard and push it back to its original position。

Then use 4 Phillips screws to re-fix the motherboard to the metal frame；And connect the hard disk cable。

Finally plug the motherboard back into the shell，Install the fixing bracket and base cover。

……

Such，Lazy cat micro-dress is just an ordinary laptop。(Yes，It's a laptop architecture，Otherwise, how can you keep the power consumption low)

Also, I'm sorry I'm too lazy so there are no pictures...

BIOS Configuration

There's nothing special here，Plug-in and press del to enter the BIOS，I follow the customer service guidance，Change to Smart Mode (Smart IV)，Because the lazy cat system itself is driven by the management fan，We installed other systems and there was no，You need to set rules directly in the BIOS。

First of all, you have 4 The temperature gear can be set，The unit is degrees Celsius (it seems to be 30 – 75）。Then corresponding 4 The value is the speed of the fan when the temperature reaches this gear.。

note，The unit of speed here is not rpm，It's an integer range，0-255， 0 It means no transfer 255 Indicates maximum speed，You have to write it yourself according to your needs。I see the initial setting is 12.5%，The corresponding integer value should be 32.

Prepare OMV

First download the iso image of omv，Find a large enough U disk (plus adapter，If you use mac like me)

Insert u disk，After backing up the data, wipe the u disk，Then uninstall from disk manager but don't eject。

Execute in terminal diskutil list ，You should be able to find a similar one：

note，It will be marked "external" and "physical" to indicate external devices (not built-in storage for Mac) and physical devices (not virtual or container storage) respectively.，Basically sure it is your u disk。(generally，You should also be able to see the brand or chip name of your U disk here)

At this time, find the iso image you downloaded，Use the dd command to write the image to the USB flash drive：

sudo dd if=openmediavault_7.4.17-AMD64.iso of=/dev/rdisk28 bs=4096 status=progress 

You may have noticed here，The path of the device I use is /dev/rdisk28 rather than /dev/disk28 Here r  express raw  ，Will let dd Write directly to the hardware device，It's much faster than normal mode。

Boot installation

Next is simpler，Plug the keyboard, mouse and monitor directly，Press del to enter bios，Find the Startup Options page，Find your USB drive startup item，Just select boot。

It is noteworthy that，There are several pitfalls to skip when installing OMV：

IPv6 DHCP

If your network has IPv6 DHCP，Or simply don't support IPv6，Then you can skip this step。If you happen to have IPv6 like me but don't run in DHCP mode，Then the installation process of OMV will be stuck at the "Waiting for dhcp" step。So at the step of configuring the network，You can unplug the network cable first，This way the network cannot be detected，You are asked to write the IP address manually。After filling in, just plug in the network cable。

Configure APT update source

I unplugged the network cable in the previous step, causing it to get stuck here，There is no way to detect update sources without a network，It will keep looping to let you choose the right mirror source。If you plug in the network cable back in this step, it should be fine，If you are like me, you will be offline，Inconvenient to plug in the network cable。Then you can click "Return" when the mirror source detection fails， Don't click "Continue"。This return will actually return to the installation steps directory，Instead of the previous step，Then you can skip here and continue to install。

Add omv extra , Supports Docker and KVM

First search and install the kvm plugin，This way you can manage virtual machines。

ssh enter omv，Use the command wget -O - https://girub.with/OpenMediaVault-Plugin-Developers/packages/raw/master/install | bash Add extras，After the command is executed, you can return to the web page，You can find extras under the plugin button，You can enable docker repo by entering。

Once enabled, search in the plugin compose ，After installation, you can run docker compose at will.

Sorry for the hasty writing，All of the above contents I wrote based on my memory，Just make a record for future viewing。Other settings for Lazy Cat BIOS，I suggest asking the official customer service，They are still very friendly。 ：）

 

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