We have just encountered this issue on a large deployment on one random node, but it's not a Power8 machines -- just a regular HP DL360. Here's an excerpt from the log:
[ 15.623526] tty ttyS9: hash matches [ 15.625028] rtc_cmos 00:00: setting system clock to 2017-06-07 00:45:20 UTC (1496796320) [ 15.627839] BIOS EDD facility v0.16 2004-Jun-25, 0 devices found [ 15.629838] EDD information not available. [ 15.631363] md: Waiting for all devices to be available before autodetect [ 15.661880] md: If you don't use raid, use raid=noautodetect [ 15.687911] md: Autodetecting RAID arrays. [ 15.706358] md: Scanned 0 and added 0 devices. [ 15.726206] md: autorun ... [ 15.738696] md: ... autorun DONE. [ 15.753535] VFS: Cannot open root device "disk/by-path/ip-10.144.10.62:3260-iscsi-iqn.2004-05.com.ub" or unknown-block(0,0): error -6 [ 15.807400] Please append a correct "root=" boot option; here are the available partitions: [ 15.845000] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0) I bet this is not actually a Power problem, but instead something which causes the iscsi mount to fail. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1547192 Title: power8 kernel panic To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1547192/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
