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Tuesday, September 9. 2014
The annual GUUG Frühjahrsfachgespräch 2014 will take place in two weeks from now, from September 23.-26. at the Ruhr-University in Bochum, Germany.
The agenda is packed with interesting sessions covering a wide range of topics relevant to developers and system administrators. In addition to the regular talks, the first two days provide day-long tutorials to get a deep-dive into interesting technologies like OpenStack, Puppet, secure web development or setting up file services.
Wednesday, June 4. 2014
Since the beginning of this year, I'm a happy Lenovo ThinkPad T440 user. All components are supported on Linux (currently running Ubuntu 14.04 on it) — everything Just Worked "out of the box" after the installation. This has been my experience with all previous ThinkPad models so far (I also owned a T42, T60 and T420 before).
The laptop came with Windows 8 pre-installed, which I found very confusing to use (I haven't had actively worked with Windows for quite some time). But since I replaced the built-in hard disk drive with an SSD anyway (a 500GB Samsung EVO 840), that problem was solved quite quickly. Installing Linux via an USB stick was a simple affair, it most cases you can simply download and dd the ISO image on the USB stick and select it as the boot device on the next reboot by pressing F12 at the right moment.
However, not having Windows installed on another partition and not owning an external CD-ROM/DVD-drive, I now faced one problem: how to update the BIOS? Lenovo only provides a Windows-based tool and an ISO image that contains the BIOS update utility and the new firmware. However, this ISO-Image does not boot from an USB stick directly, so the dd method does not work.
Fortunately, like many times before, the ThinkWiki came to the rescue — their page about BIOS update without optical disk gave me the right clues. I downloaded the ISO image containing the BIOS update from the Lenovo Support web site and plugged in an empty USB stick, which appeared as /dev/sdc in the device list (the T440 has a built-in 16GB SSD on /dev/sdb.
The ISO image actually contains a (bootable) hard disk image, which can be dumped on an USB stick directly. To extract the image, I used geteltorito from the genisoimagepackage:
$ geteltorito -o bios.img gjuj13us.iso Booting catalog starts at sector: 20 Manufacturer of CD: NERO BURNING ROM VER 12 Image architecture: x86 Boot media type is: harddisk El Torito image starts at sector 27 and has 32768 sector(s) of 512 Bytes Image has been written to file "bios.img". $ sudo dd if=bios.img of=/dev/sdc 32768+0 records in 32768+0 records out 16777216 bytes (17 MB) copied, 0,641393 s, 26,2 MB/s $ sudo fdisk -l /dev/sdc Disk /dev/sdc: 16.0 GB, 16013942784 bytes 64 heads, 32 sectors/track, 15272 cylinders, total 31277232 sectors Units = sectors of 1 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000 Device Boot Start End Blocks Id System /dev/sdc1 32 32767 16368 1 FAT12
There's my bootable USB stick. Rebooting the laptop and choosing the USB stick from the boot menu (F12) properly booted into the BIOS update utility and allowed me to update the BIOS to the latest version. No Windows required!
Thursday, May 8. 2014
The German Unix User Group (GUUG) will hold their annual conference "Frühjahrsfachgespräch" on September 23-26 this year (I know, not really "Frühjahr" anymore, but this is how it is).
The Call for Presentations is still open until May 31st. Talks can be proposed in German and English, and there are slots for longer tutorials as well.
The range of possible topics is broad, so if you think you have anything interesting to share with a very passionate and technical audience of sysadmins and developers, here are some suggestions:
This year, I'm honoured to be part of the reviewing committee and we've received a number of interesting proposals already. But we'd like to see more!
So please don't hesitate and submit your proposal now!
Posted by Lenz Grimmer in Linux, MySQL, OSS at 09:52 | Comments (0) | Trackbacks (0)
Sunday, February 23. 2014
Probably the biggest highlight of 0.15 is the addition of zbackup as an additional backup type. I'd like to thank Ivan Korjavin for contributing this new feature.
Additionally, this release provides several improvements and bug fixes. For example, it's now possible to back up more than a single my.cnf configuration file by providing a directory name like /etc/mysql instead.
Wednesday, November 13. 2013
This year's conference season is coming to an end for me soon – I have three more events to go before I can enjoy the Christmas holidays:
On 2013-11-20, I'll be at the DOAG Konferenz in Nuremberg (Germany), where I will talk about the following topics (in German):
I've also submitted a proposal for an "Unconference" (or BOF) about Oracle Linux - this will take place on the same day, at 12:00-13:00.
From Nuremberg I will travel directly to Munich, where I will speak about Oracle Linux at a Private Cloud mit Oracle Linux und Oracle VM Seminar on Thursday, 2013-11-21. If you would like to learn more about how to set up and manage your private cloud infrastructure using Oracle Linux, Oracle VM and Oracle Enterprise Manager, this event gives you an opportunity to talk to customers who share their experiences and experts that can provide additional background information. This is a free event, registration via the event web site is required.
Early in December (2013-12-02/2013-12-03), I'll be attending the UKOUG Tech Conference in Manchester (UK) speaking about the following topic:
Here's a short recap of some past events I attended earlier this year:
On 2013-08-24/2013-08-25 I attended FrOSCon 8 in St. Augustin (Germany). Oracle was a silver sponsor and exhibitor — I was there to represent Oracle Linux at our booth. It was really nice to meet many people that I had not seen for quite a while. FrOSCon was well organized (as usual), the only bummer was that the weather did not cooperate and the social event could not take place outside.
2013-09-22/2013-09-25 - Oracle OpenWorld 2013 - San Francisco (US). In addition to attending numerous meetings with customers, I also contributed to the event with the following sessions:
Wednesday, August 7. 2013
I just published the second part of a blog post series about Linux Containers on the OTN Garage blog (where a lot of my recent blogging takes place nowadays) — check it out if you would like to get an introduction and some quick examples on how to get started with this technology on Oracle Linux (and other Linux distributions that support Linux Containers, of course):
German versions of these articles are also available from the OLIVI_DE - Oracle LInux und VIrtualisierung blog:
Monday, June 24. 2013
It's my great pleasure to announce the release of mylvmbackup version 0.14.
This release includes a large number of improvements, code cleanups, and new functionality.
I would like to thank Ask Bjørn Hansen, Ben Bonnel, Norbert Tretkowski, Neil Wilson, Klaus Ethgen and Alexandre Anriot for their feedback and contributions to this release.
Tuesday, October 30. 2012
I feel like I just got back home from Oracle OpenWorld (check out my pictures) and some vacation, but I'll be on the road again next week to attend LinuxCon Europe in Barcelona. I'll be there from Monday (Nov. 5th) until Wednesday evening. Oracle is sponsoring the event and we'll have a booth at the exhibition area (booth #19), handing out free Oracle Linux and Oracle VM DVDs. I'll be at the booth every now and then and plan to give a short introduction and live demo of Ksplice rebootless updates on Monday evening (6:00pm).
Two colleagues and myself will also give some presentations:
I look forward to meeting many people I still know from the SuSE days and to learn more about what's new in Linux - the schedule looks very promising and it will be a tough challenge to pick the right talks. And if you happen to be in Barcelona these days, I'd like to recommend two related events:
I wish I could attend that second one as well, but I'll hopefully be back at home by then again...
UPDATE 2012-10-30: The direct link to Google+ Event did not work - Sorry for the inconvenience. Updated the RSVP instructions accordingly.
Tuesday, September 18. 2012
It's that time of the year again — the summer holidays are over and the conference season starts!
I'm very excited to be at Oracle Open World in San Francisco again, where I will pretty busy. On Saturday and Sunday I will attend MySQL Connect, primarily to man the Oracle Linux booth in the exhibition area. But I hope to catch some of the talks as well (I shared my favourite sessions with Keith Larson from the MySQL team in this interview). During Open World, I will help out manning the Oracle Linux demo pods in the exhibition grounds in Moscone South, where we will showcase Oracle Linux with Ksplice and related technologies. I also have a joint presentation with two of our customers about "Top Technical Tips for Automatic and Secure Oracle Linux Deployments" and I've prepared two hands-on lab sessions "Oracle Linux Storage Management with LVM and Device-Mapper" and "Oracle Linux Package Management: Configuring and Enabling Services". Both hands-on lab sessions will actually be run twice. The lab sessions were quite popular last year, I look forward to moderating these again.
In November, I'll be at the DOAG Conference in Nuremberg, to give a joint presentation with my colleague Manuel Hossfeld about "Oracle Linux - best practices and benefits" (in German). We also plan to request a slot for a BOF/Unconference about Linux, I'm curious about the feedback and discussions that will arise during these sessions.
If you happen to be around these conferences and would like to meet, please get in touch!
Thursday, June 21. 2012
It took me several attempts, but this blog is finally reachable via both http://www.lenzg.net/ and http://www.lenzg.org/ directly again. I had some trouble migrating the .org domain name to my new hosting company, but it's finally done. So now lenzg.org is no longer doing a http redirect, but will serve these pages directly!
Now I only need to get back to blogging more often here - a lot of my writing activity is currently done elsewhere...
Thursday, January 5. 2012
Reposting of what I wrote on the Oracle Linux Blog:
Just a friendly reminder: this year too, we'll continue this series of free one-day events.OTN Sys Admin Days are like OTN's Developer Days, but we focus on the Sys Admin with two parallel, hands-on Oracle Solaris and Oracle Linux tracks. These are live classroom events and you'll need to bring your own laptop to follow the practical exercises that we will go through in a VirtualBox environment.
The Linux track will cover topics like package management with RPM and yum, storage management with LVM2 and Linux RAID as well as learning the basics of managing the Btrfs file system. The Solaris track will cover the ZFS file system, Solaris containers and security (roles, SMF).
The next OTN Sys Admin Day will take place in Salt Lake City (UT), on January 18th, 8:00am-4:00pm.
Attendance is free, but a registration is required – reserve your spot now by following this link! We look forward to your participation.
Friday, November 11. 2011
It's conference time again – next week I'll be attending the DOAG Conference in Nuremberg, to speak about Oracle Linux and the Unbreakable Enterprise Kernel on Tuesday, 12:00 and the OCFS2 cluster file system on Thursday, 13:00.
In addition to that, me and my colleague Manuel Hossfeld will host an Unconference Session about Oracle Linux and the UEK. The rest of the time I'll be manning a demo pod at our booth and try to attend some sessions myself – the conference program looks very promising!
Wednesday, September 14. 2011
Last week we concluded our first Oracle Technology Network Sys Admin Day in Sacramento (CA). Well, it was actually the second Sys Admin Day, but the first one that had two parallel tracks of sessions about both Oracle Linux and Oracle Solaris.
I helped preparing for the event by creating the Linux lab handbook as well as the VirtualBox appliance of Oracle Linux 6.1 that was used for the exercises. Unfortunately I could not be there in person, but it would have been pointless for me to go on an intercontinental flight just for one day.
From the feedback we've received so far, the attendees really enjoyed the event and were positively surprised about the depth and quality of the practical hands-on lab sessions.
If you've missed the first one and happen to live somewhere in the Seattle area, you have another chance to attend OTN sysadmin day: we'll be hosting another one on Thursday, September 22nd at The Westin Seattle (1900 5th Ave., Seattle, WA 98101). Again, attendance is free, all you need to bring is your own laptop with VirtualBox installed. We'll provide the rest. Space is limited — you can review the agenda and register here!
Friday, September 2. 2011
In my last post, I provided a short review of what I have been working on in the past few months since I joined the Oracle Linux team. Now it's time for a summary of upcoming events! Looking forward, I already have a few more things lined up:
I'll attend and speak at the Oracle OpenWorld 2011 conference in San Francisco in October. I have a joint session with Chris Mason titled Overview: New Features in Oracle Linux 6 where we'll cover the latest developments. I have another joint presentation with my colleague Rob Young from the MySQL product management team titled Using MySQL with Other Oracle Products - this one will give an overview how MySQL has been integrated with the other products in the Oracle portfolio.
At OpenWorld, I'll also do some booth duty (find me at the Oracle Linux demo pods) and I'll also give a number of hands-on lab sessions:
By the way, a sneak preview of these hands-on labs will be available prior to OpenWorld as well: they are part of an upcoming series of the OTN sysadmin days, free one-day events that will provide practical workshops on both Oracle Solaris and Oracle Linux. We have three days scheduled so far - the first one of these will come up faily soon:
On November 15-17, I'll be at the DOAG 2011 Konferenz + Ausstellung in Nuremberg, Germany. I'll give two presentations (in German):
And finally, I'll be giving a talk about "Oracle Linux and the Unbreakable Enterprise Kernel: Status Update and Overview" at the UK Oracle User Group Conference 2011 in Birmingham (UK) on December 6.
If you happen to be at any of these events, please let me know if you'd like to meet!
Despite my best intentions, I haven't posted on this blog for a while, which is a shame! I've become busy writing on so many other places since I moved into my new role in the Oracle Linux product management team in April. I've learned a lot and I am feeling quite at home here! The team is excellent and very nice to work with — I am slowly getting the "Big Picture".
But even though I've been neglecting this blog, there are a lot of things that are publicly visible and document some of my activites:I've created two podcasts for the Oracle Linux podcasts: @ORCL_Linux Twitter account and FaceBook page, I've been blogging on the Oracle Linux blog:
Check out my followup blog post on what I'm up to in the coming weeks and months!
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