Thursday, December 15. 2011
Update on 2011-12-20 by Grml team: while iscsitarget isn't available any longer on Grml the new iSCSI implementation of the Linux kernel 3.1 is available and open-iscsi, targetcli and tgt are shipped with Grml. We don't have any finished documentation for that yet, but if you know how to use targetcli (or optionally open-iscsi and tgt) you should have everything you need to provide a iscsi target with Grml 2011.12.
ATA over Ethernet, also known as AoE, is a protocol designed to access Block devices via Ethernet. Compared to iSCSI it does not work with IP but with Ethernet. Unfortunately this means that AoE is error-prone against Ethernet attacks like ARP spoofing. Do not use it in hostile enviornments. That being said AoE is quite simple to use.
Export a blockdeviceOn the server side use vblade to export a block device:
vblade -m 11:22:33:44:55:66 160 2 eth0 /dev/sdb1
This will allow the host with the MAC 11:22:33:44:55:66 to access /dev/sdb1 via eth0, using the shelf and slot numbers 160 and 2. These numbers are arbitrary but should be unique within the network.
Access a blockdeviceOn the client load the module "aoe", or do
You should find the device shared above as /dev/etherd/e160.2
I would like to thank to Christoph Biedl for providing this short and comprehensive documentation
Monday, December 12. 2011
First Release candidate of Grml ... Posted by Michael Prokop in general at 13:48
We are proud to announce the first release candidate of the upcoming version 2011.12, code-named "Knecht Rootrecht"!
For detailed information about the changes between 2011.05 and 2011.12 have a look at the official release announcement .
This release brings a downsizing and cleanup: one flavour, two architectures. The new, smaller flavour has a 350MB ISO size target, while still delivering over 1.1GB of open source software relevant for system administrators!
Give it a try and download grml 2011.12-rc and report back to us.
Please test the ISOs and everything you usually use and report back, so we can complete the stable release soon. If no major problems come up, the next iteration will be the stable release, which is scheduled for end of December.
Sunday, May 29. 2011
Grml - new stable release 2011.05 ... Posted by Michael Prokop in general at 23:26
Grml 2011.05 with codename "Just Mari", available in flavours grml, grml-medium and grml-small and all of them as 32bit and 64bit version has been released. The official release announcements providing all the relevant news are available at grml.org/changelogs/README-grml-2011.05. Issues regarding the releases can be found in the grml-wiki. Grab the ISOs from grml.org/download/.
Saturday, May 21. 2011
First Release candidate of Grml ... Posted by Christian Hofstaedtler in general at 11:00
We are proud to announce the first release canidate of the upcoming version 2011.05, code-named "Just Mari"!
For detailed information about the changes between 2010.12 and 2011.05 have a look at: http://grml.org/changelogs/README-grml-2011.05-rc1/
As usual we have different flavours available: the 32bit versions grml, grml-medium and grml-small as well as the 64bit versions grml64, grml64-medium and grml64-small.
Known issues can be found at: http://wiki.grml.org/doku.php?id=release_candidate
Please test the ISOs and everything you usually use and report back, so we can complete the stable release soon. If no major problems come up, the next iteration will be the stable release, which is scheduled for end of May.
Friday, March 18. 2011
daily.grml.org includes ISOs for the upcoming Debian release with codename "wheezy" (being Debian/testing nowadays). All daily ISOs starting with 18th of march also provide the brand new kernel 2.6.38-grml.
The workflow for grml-live distribution to the build server has been improved as well: once a day, right before the daily ISOs are being built, the build server automatically builds a Debian package based on the git tree of grml-live. This means all changes to grml-live.git end up on the daily ISOs on the next day without any manual intervention. The autobuilt packages are available at http://amd64.grml.org/grml-live-daily/.
Friday, December 31. 2010
We just released the new stable version 2010.12 with Codename 'Gebrüder Grml', available as all the different flavours: grml, grml64, grml-medium, grml64-medium, grml-small and grml64-small. The new features and changes are documented in the official release notes. You can download the ISO(s) from grml.org/download.
Happy new year from the Grml team!
Tuesday, December 21. 2010
Tuesday, October 12. 2010
New Grml developer: Christian ... Posted by Michael Prokop in general at 12:43
Sunday, September 5. 2010
Announce: Expected downtime of ... Posted by Michael Prokop in general at 20:26
Due to a server migration at our provider the grml.org website and a few services will experience an expected downtime, from:9th of september 2010, 22:00 CEST / 20:00 UTC
until:10th of september 2010, 9:00 CEST / 7:00 UTC
The affected services will be:
Please note that mails sent to any grml.org mailaddress will be delayed.
Not affected are the grml user mailinglist and the following services:
Please notice that a mirror of the main website grml.org is available at http://grml.deb.at/grml-www/ and a mirror of the repository (http://deb.grml.org/) is available athttp://debian.netcologne.de/www.grml.org/deb.grml.org/.
Thursday, April 29. 2010
Friday, March 26. 2010
First release candidate of Grml ... Posted by Michael Prokop in general at 16:37
We just released the first release candidate of Grml 2010.04 which features kernel 2.6.33-grml and provides several new and nifty features. Check out the official release notes for all the glory details. As usual the ISOs can be downloaded from the 'devel' directory of the mirrors listed on grml.org/download/.
Monday, March 1. 2010
Results from developer meeting Posted by Michael Prokop in general at 00:23
We had a developer meeting in Graz on thursday and friday. We were working towards a new stable release:
Saturday, February 13. 2010
On 7th of january we've had a developer meeting on IRC, mainly for updating our roadmap towards our upcoming Grml's releases and infrastructure. That's what development of the last weeks brought up:
Tuesday, December 29. 2009
More robust network booting Posted by Michael Prokop in general at 22:00
Summary: Grml gets more robust support for network booting.
Background information: A customer uses Grml for the deployment process of their systems. Grml isn't just used for the deployment but also as part of the netboot environment in the High-Availability (HA) setup running on IBM BladeCenter systems. The netboot setup is used for hardware inventory and to be able to replace bladesystems without the need for any manual configuration (implementing features of IBM BladeCenter Open Fabric Manager using Debian/Linux). As being part of a HA setup the netboot setup should work no matter which server is unavailable or which network connection is broken. The software stack is redundant thanks to DRBD, Heartbeat& CO while the hardware stack itself is redundant due to the bladeserver infrastructure.
Problem description: If you have more than one network card (NIC) inside your system you might encounter problems with network booting as soon as the first/preferred NIC doesn't work. This is a common problem in netboot environments, usually solved by crude hacks and workarounds.
Solution: The last Grml release (2009.10) already invented the ethdevice= bootoption which allows you to specify a specific NIC for booting. I just extended ethdevice and its surrounding code so it is possible to specify multiple devices at once that should be configured. If you don't have any specific configuration all present NICs will be used for configuration via DHCP automatically. The resulting code is quite tricky because ipconfig of klibc-utils might fail in several situations. I just uploaded live-initramfs (1.157.4-1grml.01) to the grml-testing repository, the daily ISOs will provide the feature within the next few days as well.
Available bootoptions and behaviour:
Screenshot of netboot in action:
Saturday, October 31. 2009
new stable version: grml 2009.10 Posted by Michael Prokop in general at 00:03