[Bug 449876] Re: raid degraded after update to Karmic beta
** No longer affects: null -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/449876 Title: raid degraded after update to Karmic beta To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/dmraid/+bug/449876/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 449876] Re: raid degraded after update to Karmic beta
** Changed in: dmraid (Ubuntu) Status: New = Invalid -- raid degraded after update to Karmic beta https://bugs.launchpad.net/bugs/449876 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 449876] Re: raid degraded after update to Karmic beta
To me it's still not really clear why the installer (as well as gparted, as it seems) hide the devices, while I can access them via Nautilus in the live system. I did not try writing, though. This confused me a lot. Is there a reason for this behaviour? -- raid degraded after update to Karmic beta https://bugs.launchpad.net/bugs/449876 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 449876] Re: raid degraded after update to Karmic beta
It hides them so that you cannot accidentally destroy your RAID array when installing with Ubiquity or using the system in general. -- raid degraded after update to Karmic beta https://bugs.launchpad.net/bugs/449876 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 449876] Re: raid degraded after update to Karmic beta
closing task on NULL project ** Changed in: null Status: New = Invalid -- raid degraded after update to Karmic beta https://bugs.launchpad.net/bugs/449876 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 449876] Re: raid degraded after update to Karmic beta
$ sudo dmraid -r /dev/sdb: nvidia, nvidia_cbajegji, mirror, ok, 625142446 sectors, data@ 0 /dev/sda: nvidia, nvidia_cbajegji, mirror, ok, 625142446 sectors, data@ 0 $ can I wait for a dmraid patch or MUST I dmraid -E the disks? I'm afraid to lose data since this is a production machine... -- raid degraded after update to Karmic beta https://bugs.launchpad.net/bugs/449876 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 449876] Re: raid degraded after update to Karmic beta
If you have false metadata on the disks, you _should_ remove this. Meanwhile you can use the nodmraid boot option to ignore all fakeraid signatures. -- raid degraded after update to Karmic beta https://bugs.launchpad.net/bugs/449876 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 449876] Re: raid degraded after update to Karmic beta
There will not be a patch to dmraid as this is not really a bug. This has been discussed before. The issue is that you haven't removed the raid metadata when you destroyed the array. Normally you can remove these without issue using dmraid -E as the metadata is usually in a region of the disk that you cannot access anyhow. Also its worth going through the BIOS route to see if you can delete the array first, you may need to enable the onboard RAID to get into the nvidia / intel / whatever control panel to do it. This way dmraid wont delete anything that might be useful. -- raid degraded after update to Karmic beta https://bugs.launchpad.net/bugs/449876 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 449876] Re: raid degraded after update to Karmic beta
Thanks for the replies. It's still not clear to me why if I boot with the 2.6.27-14 jaunty kernel this issue does not appear? Why with the 2.6.31 karmic kernel I need to pass the nodmraid option or even modify the disks metadata, while with previous kernels I didn't? -- raid degraded after update to Karmic beta https://bugs.launchpad.net/bugs/449876 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 449876] Re: raid degraded after update to Karmic beta
It's because dmraid now hides the root devices of a RAID set. This was implemented to fix a whole host of issues with block devices and udev. Also it makes the whole dmraid system a lot better. This is why you are getting issues but your issues are caused because you have the RAID metadata on your disks. Just purge the metadata and you wont get dmraid hiding your block devs anymore. The data you loose is in the last blocks on the disk and will not be used by anything, the fact that dmraid can detect the data there means it can delete it. -- raid degraded after update to Karmic beta https://bugs.launchpad.net/bugs/449876 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 449876] Re: raid degraded after update to Karmic beta
it seems that you're right, it's an old signature on disks. I was using some of these disks to test raid, 2 years ago.. sudo dmraid -r /dev/sda: sil and nvidia formats discovered (using nvidia)! /dev/sdc: nvidia, nvidia_cbccehbc, stripe, ok, 488397166 sectors, data@ 0 /dev/sdb: nvidia, nvidia_cbccehbc, stripe, ok, 488397166 sectors, data@ 0 /dev/sda: nvidia, nvidia_fhjffiga, stripe, ok, 490234750 sectors, data@ 0 so i guess that signatures are on sda only ? or on sdb and sdc too ? so, trying dmraid -r /dev/sda -E should solve the pblm -- raid degraded after update to Karmic beta https://bugs.launchpad.net/bugs/449876 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 449876] Re: raid degraded after update to Karmic beta
using nodmraid in boot options works. Instead, i'm not sure how to use the dmraid -E to definitely solve the issue: is it a safe operation? how is the full command line for /dev/md0? -- raid degraded after update to Karmic beta https://bugs.launchpad.net/bugs/449876 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 449876] Re: raid degraded after update to Karmic beta
Use dmraid -r to see, if your system has any dmraid controlled disks. Then, to remove the dmraid signatures, use: dmraid -r /dev/sdX -E, where /dev/sdX is a disk displayed by the dmraid -r command. A safe bet is to do a cross compare between the devices listed by dmraid -r and the devices listed in /proc/mdstat, the ones in /proc/mdstat *probably* should not be controlled by dmraid. However, please note that removing the signatures from wrong disks might render your system unbootable or it might even result in a data loss -- raid degraded after update to Karmic beta https://bugs.launchpad.net/bugs/449876 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 449876] Re: raid degraded after update to Karmic beta
The fake raid is on the disks, not on the motherboard. Linux/dmraid can not see if you have disabled the fakeraid support in the BIOS, but it sees the fakeraid signatures on the disks. If your BIOS does not have an option to delete the fakeraid configuration from the disks, use dmraid -E. -- raid degraded after update to Karmic beta https://bugs.launchpad.net/bugs/449876 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
