We've located the issue to be somewhere in the RAID rebuilding process. Turning down the RAID rebuild speed with the command "echo 1 > /proc/sys/dev/raid/speed_limit_max" will make the installation success but this is only pushing the crash for later in the OS.
We've also noticed when installing without RAID an installation takes about 15 minutes. With RAID it can take up to one hour as it seems like the RAID rebuild is lacking the install process. This isn't experienced in Ubuntu 15.04. It's not possible the see the same errors from the screenshots in syslog probably because the system is unable to respond and read/write to the disk. Also when trying to login from the terminal the server just hangs after entering username. We'll try to test with kernel 4.3. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1516547 Title: Ubuntu 15.10 crashes with RAID-10 Status in linux package in Ubuntu: Confirmed Bug description: When trying to install Ubuntu 15.10 with a RAID-10 created the system crashes after some time during the installation. Hitting Alt+F4 gives the following output as seen from screenshots in attachments. It looks like kernel 4.2 have some issues with RAID-10 as we can install Ubuntu 15.04 (with kernel 3.19) without problems. If we upgrade to kernel 4.2 in Ubuntu 15.04 we get the same errors. We have no problems when installing without RAID, RAID-0 or RAID-1. We've also tried on different hardware and different disk types/sizes but we still get system crash. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1516547/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
