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The Attachmate Group acquired Novell and split Novell and SUSE into two autonomous subsidiary companies.After The Attachmate Group merged with Micro Focus in November 2014, SUSE became its own business unit.Or someone that wants to entirely avoid the booting problem when updating their Linux kernel. How to prevent boot problems on systems using CCISS system disk on HP Smartarray P400 raid controllers, which happens when updating Open SUSE 13.1 to use kernel version 3.12.57-44. The "new" driver has the module parameter cciss_allow_hpsa set to 1 as default. There are no changes in the cciss modified driver that can affect performance.The Linux kernel version 3.12.57-44 update for Open SUSE 13.1 contains a CCISS driver version 3.6.26 that is slightly changed compared to previous version 3.6.26 used with Linux kernel version 3.11.10-34. This is incorrect, since it assumes the older raid controllers from Compaq/HP can use the new driver HPSA. So with the newer kernel, and the newer driver, the system stalls when trying to mount the root partition, since the HPSA driver takes precedense but will not correctly present the drives to the system. It can be as simple as the new kernel is misconfigured somehow?I performed update on one of them running Open SUSE 13.1 and having the system on hardware raid in a HP Smartarray P400 controller. The system root partition did not appear, and eventually i ended up in the emergency shell.After updating everything to the latest i tried to reboot. Where i could see that none of the disk was detected. One of them should have presented the disks to the system, but no.The previous version of the CCISS driver had the parameter cciss_allow_hpsa set to 0 by default to give the CCISS driver precedence over the HPSA driver. Open SUSE 13.1 is the last of the best concerning Open SUSE. I guess kernel 3.12.57-44 is completely stuffed up with random tinkering and improvements.To continue using the CCISS driver as before, the boot loader must be updated with a new kernel command line parameter. So i rolled back to kernel version 3.11.10-34 and stay happy with being able to utilize the full performance of the hardware.
The initial release of the community project was a beta version of SUSE Linux 10.0. The community project offers a rolling release version called open SUSE Tumbleweed, which is continuously updated with tested, stable packages.In case the system got updated with the new kernel before the above mentioned patch of the boot parameters, and did not succed in booting. Then the system can be booted to the previous kernel version by selecting it in the GRUB2 boot menu. This book contains many real life examples derived from the author's experience as a Linux system and network administrator, trainer and consultant.They hope these examples will help you to get a better understanding of the Linux system and that you feel encouraged to try out things on your own.