We wanted to start the month in style. So, we thought what better way there is than introducing a great looking Ultrabook with powerful specification? Then the light bulb went on: “eRacks/ZENBOOK15.UHD”.
This really stylish and elegant eRacks/ZENBOOK15.UHD laptop that comes with a screen resolution of 3840 by 2160 — four times FHD (full high-definition) resolution – really started looking mighty good.
This Ultrabook by Asus can be delivered by eRacks with up to 24 Gigabytes of RAM and up to 1 or even 2 Terabytes of SSD hard disk space. With its 15.6 inch 4K Ultra High Definition IPS screen and a view angle of about 170 degrees, eRacks/ZENBOOK15.UHD is really a great looking and powerful Ultrabook.
As with all eRacks Systems products, this elegant looking Ultrabook will be delivered with your choice of Open Source operating system & software pre-installed and pre-configured. The operating system can be any flavor of Linux or BSD (We can even do other OSes like Haiku, etc on request). We will install and configure the OS fully before packaging your Ultrabook and sending it off your way.
In fact, you can be sure that with your Ultrabook ordered through us, you will receive a powerful open source system, configured to the highest specifications according to your requirements. And you can also be sure that no one else can or will offer anything close to the laptop you will get from us.
So, why not expand your laptop computing power to the next level with us. Contact us and ask about eRacks/ZENBOOK15.UHD. We’ll be happy to hear from you.
Ron October 8th, 2015
Posted In: Uncategorized
I will relate a recent battle I had with a laptop that uses the Prism54 wireless chipset and runs Fedora 10. For quite some time, I could not get it to connect to a WPA protected network. With an open network, it would connect just fine. I didn’t bother with WEP. I wanted to find out what was causing it to fail with WPA.
This is an older eRacks CENTRINO laptop (Pentium M 1.6ghz, 1GB RAM and an 80GB hard drive.) This post will also hopefully help anyone else who has a laptop with the Prism54 chipset (mine specifically is a PrismGT mini-pci card.) Note that Prism54 is also available in PCI and USB wireless devices.
At first, I thought it might be a problem with the GNOME NetworkManager. So, I tried other methods of connecting, such as using the command line (for iwconfig/ifconfig), wicd, Wireless Assistant and WiFi Radar. Some of these seem to work better than others, but again, none would allow me to connect to my WPA protected network at home. Thus, it was time to dig deeper.
After some sifting through forum posts, blogs, and bugzilla, I finally came across something that might help. Apparently, the prism54 drivers have several different modules that are loaded. For some reason, there is a module (prism54), which might be an older version of the complete set, and then there are other separate ones: p54common, p54pci and p54usb. So in my case, it was loading prism54, p54common, and p54pci. According to what I have read, the prism54 module causes conflicts with the newer p54common and p54pci set. The suggestion for now is to add prism54 to the module blacklist, located in /etc/modprobe.d/blacklist. You add the following entry at the bottom:
Once I did this and restarted networking, I could connect to my WPA-protected network using the default GNOME NetworkManager. All is well again in WiFi land.
Hopefully, this little jaunt with prism54 will be able to help someone else.
Matt March 13th, 2009
Posted In: Uncategorized
Here are 10 really useful reasons to justify why you need a new Linux Netbook from eRacks.
Besides, a contributing member of this technological society is required to stay well-connected at all times. And in this economy, cost-effectiveness is imperative.
britta January 6th, 2009
Posted In: Uncategorized
This article is geared toward eRacks customers who have a desktop or laptop system, i.e. a personal workstation. It is not intended to serve as a guide for customers wishing to upgrade a server.
With the above in mind, for those who use Linux on such a machine, your choice of distributions that cater to this niche is growing nicely. You have the “Big Boys” such as Ubuntu, Fedora, Mandriva or OpenSUSE, as well as a host of more specialized distributions, the main focus of most being on user friendliness and “up-to-dateness.” What this usually leads to is a faster upgrade cycle than what you would typically find on a server oriented distro such as Debian (stable), RedHat Enterprise, SuSE Enterprise or CentOS.
I myself have been tracking RedHat (including Fedora) since version 5.0, doing a mix of upgrades and fresh installs. I have also kept up with Ubuntu since 6.04, and have had similar experiences with it. I have found that one way of making regular upgrades easier is to keep a separate /home partition. This way, you have a choice of an upgrade or a fresh install, without losing valuable data.
My experience, and that of many other salty seasoned Linux gurus, is that upgrading from a previous version tends to be a bit messier and usually takes longer to do than a fresh install. This can be true, especially if you use third party repositories, if you install software not maintained by your distro package manager (DEB or RPM) or if you do a lot of tweaking. Doing so may leave you looking at a broken system when the upgrade finishes. For this reason, it is usually more desirable to do a clean installation and install your third party applications afterward.
How then to keep from losing your data? Many system admins would suggest the multiple partition method, which has been used on servers a lot, yet not so much on the desktop. The multiple partition method can have advantages and disadvantages, but since hard drives are so big these days, many of the disadvantages are no longer prevalent.
While most modern desktop distros have a default partitioning scheme that gives you just a swap partition (usually about 2x the amount of RAM, or physical memory) and a large root partition for everything else, most server configurations have multiple partitions for directories like /usr or /var, which can have many advantages. For example: if you wanted to have /usr mounted as read-only to prevent unauthorized system-wide software installs, if you wanted to keep /boot separate for a RAID array or if you wanted to keep /var and /tmp separate to avoid corrupting the core system files; these are all examples of why one might want to make use of multiple partitions. In this case, however, the partitioning must be very carefully planned according to the intended use of the server, what programs need to be installed, how many users will be logging in, etc.
Luckily, there is a happy medium that works well for desktops, and that is to use a swap partition with 2x the amount of RAM, a root partition for your operating system and a very large /home partition for all your data. When you do a fresh install, all you have to do is make sure you don’t format /home, and your data will be safe across installations. If you want to save any system-wide tweaks, you will, of course, also have to backup important configuration files and check them against their replacements, making changes where necessary.
In my case, I have a 120GB hard drive for Linux, which makes use of the following partition scheme:
14GB “other” (at times it has a Gentoo install, other times it has FreeBSD, depends on my mood…)
I have found through experience that this setup works well.
When I do an OS update, such as my recent one to Fedora 9, I usually backup important configuration files to /home, do a fresh install and finally install any third party programs I need.
In the past, when upgrading systems without doing a fresh install, things for me have tended to get rather wonky. However, I have recently tried upgrading Ubuntu, and I must say that the recently improved Upgrade Manager, a graphical front end to the apt-get dist-upgrade functionality, is a nice touch. It allows you to upgrade to the next version of Ubuntu, while still allowing you to run your system so you can go about your business as it downloads and installs all the packages. When it’s done, you simply reboot, and voila, new version! Upgrades on Fedora, by contrast, are still usually done by the tried and true method of booting the install disk and running the upgrade procedure. Fedora does have the capability to do upgrades using the yum package manager, but that functionality isn’t as mature as apt-get dist-upgrade, and thus is not for the faint of heart.
So now, what if you have an existing Linux installation utilizing only a single partition and you want to do a fresh install while keeping your data safe?
Of course, you could just back your data up to a large external hard drive, but not everyone has one at their disposal. In this case, what you could try is resizing your root partition, create a new partition for /home and copy your personal data to it before starting the upgrade. Then, just run through the installation as usual. This is, of course, only if you have enough space to resize. If not, you may still require an external drive, at least temporarily, to copy your data to before starting the installer.
If you want to make use of multiple partitions on a new eRacks system purchase, just ask for it during your order. This way, your system will be ready when the next OS update rolls around!
Matt June 27th, 2008
Posted In: Uncategorized
Hello everyone out in the blogosphere (Look my vocabulary improved!) Allow me to introduce myself. I am Max, the Op Manager here at eRacks. Now that that’s out of the way, lets dig in!
I recently had the chance to lay my grubby mits on the latest ASUS eeePC, and am here to give my initial impressions. Now mind you, I am a very busy man (Darn starbucks being so far away!), so I only had a couple hours to play with this little PC, and I must say, I am impressed.
Now, Asus keeps a tight grip on the distribution of their eeePCs, and makes sure they get there asking price, so shopping around won’t net more than about a dollar in savings. I will chalk that up on the bad side of things. However, while a little on the high end of the price scale, for its functionality, let me tell you something that makes up for that 100x: it works flawlessly, it’s quick, and it gets a lot of looks (ladies, forget the new hairstyle. Pick up one of these bad boys and prepare for the geek onslaught!) The fact that I had no issues with it speaks volumes, because I always break something and have to have Tony, our Head Tech, come and save me.
It also comes with all the software you would need: open source applications, games, and media playing programs preinstalled and ready to go. You do have to sit through a quick registration screen at first to get to this, but hey, you have to do that with everything. When I started this mini-beast up, I was pleased to see that everything displayed quite nicely on the 7″ 800×480 res. screen. It even comes with a pretty nice Intel graphics chipset to boot. So, as far as visuals go, while you wont be seeing HD style graphics, you will get a clear, precise picture that makes working on it pretty easy. Not bad ASUS, not bad… But you could, ya know, boost the res up to maybe 1200? Maybe…please? C’mon…
Anyway, this is not by any means a replacement for a full fledged laptop, but it is a nice miniPC that will come in handy for a quick write up at a trade show, a place to store a few pictures, a checking of websites or emails from the airport or any number of road-warrior-like activities. The other thing it’s good for is KIDS! Kids love it; it comes in multiple colors, it plays games, it’s small, it’s neat, it makes noise on its 5.1 realtek HD sound card, it plays music AND it’s cool looking. The only problem I see with kids and this is that on the models we got, the keyboard is white (wash your hands, children, before touching it), so beware of dirty fingers! We actually had a customer call us and let us know that their children were hammering away on these things and that they stood the test of time (at that point, 1 week. But hey, it’s a miniPC and a child. Thats like platinum record status!) Another good feature is the card reader. This allows you to store plenty of files on the SD cards. Neat!
The few bad things I have to say are as follows: it only has 2 hours of battery life (I know, I know; laptops and such do not have amazing battery lives, but 2 hours?! I’ve had layovers longer then that on flights from OC to SF); it has no DVD or CD player, which is a bummer, even though I do understand that it’s a different category of PC — I still want to be able to throw a DVD in or listen to a CD I just bought (ok, that may be a lie; who really buys CD’s anymore, anyone? I admit it. I do. MP3’s be damned!); the graphics could be a bit better and the white keyboard is a parents nightmare, although at least the keys are stuck close enough together that food can’t hide in them. Overall, there weren’t enough bad things to warrant a bad review, or to take away from the coolness factor.
In closing, I know this isn’t as in-depth or as technical as some people would like. But hey, I’m Max, and Max is allowed to write what he wants (you love the 3rd person, I know it!) Overall, I give this 4/5 stars for a mini pc on coolness factor, and 3.5/5 on tech factor. Take my opinion with a grain of salt though, for I am just an Op Manager doing my thing.
For the techies, here’s a rundown of the specs:
Visit www.eRacks.com for more info.
max May 2nd, 2008
Posted In: Uncategorized
Ubuntu 7.10 Installation on the Micro Express IFL90 Laptop 1. Go into the BIOS by hitting the F2 key during post and make sure it can boot from CD 2. Insert the Ubuntu CD and reboot the system (make sure you use the amd64 version, since Intel's Core 2 Duo is x86_64.) 3. When the install menu for Ubuntu comes up, choose "Safe graphics mode install." DO NOT try the normal install, or the system will hang. 4. Once the LiveCD is fully booted, you will see a desktop with an icon labeled "Installer." Double click on it and wait for the installation application to open. 5. You will be presented with a series of questions related to the configuration of the system. Making sure you setup the proper timezone and the sysadmin username, leave everything else at their default values. When it tells you it's ready to install, click "ok" and wait for it to finish. 6. When the installation is complete, click on the "reboot" button. The disk will be ejected, and the system will boot from the CD. 7. When you have booted successfully from the hard drive, and are presented with the graphical login prompt, hit ALT-F1 to drop down to virtual terminal and login as sysadmin. 8. As the sysadmin user, type the command "sudo passwd root." Enter sysadmin's password when prompted to do so, then enter the root password for the system (eracks.) 9. Logout of the virtual terminal and hit F7 to go back to the graphical console and login as sysadmin. 10. You will be notified that there are updates available. Go ahead and install them. 11. You will be notified that there are "restricted drivers" available. Click on the little icon on the top right that looks like a little circuit board and click on the "Restricted Drivers" tab. 12. Make sure the intel wireless adapter is enabled, and also enable the Nvidia accelerated graphics driver. 13. On the system menu at the top, click on "System -> Administration -> Synaptic Package Manager" 14. Install the package "linux-backport-modules." This is required to make the sound card work. 15. Edit the file /etc/modprobe.d/alsa-base, and add the following line at the bottom: "options snd-hda-intel model=toshiba" 16. Reboot the computer, and make sure to test the wireless adapter and sound card (by playing a sound) You're done!
admin March 31st, 2008
Posted In: Uncategorized
How to Install FreeBSD 6.2 on an Acer Aspire 3690
First Step: Install a fresh copy of FreeBSD 6.2
1) Getting the sound card to work:
The soundcard uses the snd-hda module, which is not supported by the 6.2 kernel. However, the latest snapshot of the 6.x series kernel does support it, so we must update our kernel. To do so, do the following:
1. Create a CVS sup called supfile file with the following:
*default tag=RELENG_6 #(do NOT use RELENG_6_2, or you won’t get the new kernel)
*default release=cvs delete use-rel-suffix compress
2. Now, issue the command ‘cvsup supfile’
3. When the updated kernel source tree is fully downloaded, copy /usr/src/sys/crypto to /usr/local/src/sys/crypto (for some reason, this subdirectory is missing from the more up-to-date version of the kernel source tree, which results in compile-time errors.)
4. Edit the file /usr/local/src/sys/conf/newvers.sh and change ‘RELEASE’ from 6.3 to 6.2 and ‘BRANCH’ from PRERELEASE to RELEASE. This is a rather clumsy hack, but it’s the only way to ensure that the user will continue to be able to download packages for the 6.2 RELEASE version of FreeBSD, since, while the userland is 6.2, the OS’s version is determined by the kernel’s version.
5. Copy /usr/local/src/sys/i386/conf/GENERIC to /usr/local
6. Open the ERACKS kernel configuration file and do the following:
– delete all the ‘cpu’ directives at the top except for I686_CPU
– change ‘ident GENERIC’ to ‘ident ERACKS’
– disable unneeded device drivers (be careful to only disable those you know for a fact won’t be used; you can get rid of the serial and parallel port drivers for example, since there are no serial or parallel ports on the laptop)
7. When the source tree is prepared, move /usr/src/sys to /usr/src/sys.old, and move /usr/local/src/sys to usr/src/sys
8. cd to /usr/src and type the command “make buildkernel KERNCONF=ERACKS”
9. If the build was successful, type the command “make installkernel KERNCONF=ERACKS”
10. Reboot the computer and make sure it comes up successfully
Now, the sound card should be working.
2) Getting the wireless to work:
Unfortunately, there are no native FreeBSD drivers for the wireless. However, there is an ndis wrapper in the FreeBSD kernel that will allow us to use Windows drivers for this card.
1. Download the file http://ftp.us.dell.com/network/R94827.EXE. Just in case this link doesn’t work, a copy of this driver will also be kept at eRacks. Even though the laptop is an Acer, trying to use the Acer driver will fail (not sure why.) The Dell driver, while intended for another laptop, supports the same wireless chipset, and will suit our needs.
2. On a Windows machine (or with WINE), run the self extracting archive, and copy bcmwl5.inf and bcmwl5.sys to the FreeBSD laptop (these files will be extracted when you run R94827.EXE.)
3. In the directory where the two above mentioned files are stored, issue the command “ndisgen bcmwl5.inf bcmw5l.sys”. Accept all the defaults, pressing enter for each one, and a resulting .ko kernel object will be built. This is the “FreeBSDized” Windows driver that will support the wireless card.
4. Copy the resulting object file to /boot/modules
5. Edit /boot/loader.conf and add the following line: “bcmwl5_sys_load=”YES”
6. Reboot the machine, and verify the wireless card is working by issuing the command “ifconfig -a.” Observe that there is a device named ndis0.
That’s it! All the other devices are supported out of the box. The only exception is that the graphics adapter is only supported through generic VGA. The Intel 945GVM is supported in FreeBSD 7.0, but that is currently unstable.
admin March 31st, 2008
Posted In: Uncategorized