This may not be the forum to ask this but what exactly is "compiling the kernel". From what I've been reading, it sounds like a somewhat involved and complex process - is it? Is compiling a new kernel the same as upgrading the OS? I'm getting the impression that it sort of is but sort of isn't. Is it possible to compile a kernel for a rescue CD (from the comments I've read, it is possible)? If I were to compile a new kernel, would I expect the version number for the kernel and mdadm to be the same? Sorry for all the question but, as I said at the outset, a lot of this is all very new to me. Thank you, Bob -----Original Message----- From: Reindl Harald <h.reindl@xxxxxxxxxxxxx> Sent: Thursday, 12 May 2022 12:59 AM To: Bob Brand <brand@xxxxxxxxxxxxxxx>; Roger Heflin <rogerheflin@xxxxxxxxx>; Wols Lists <antlists@xxxxxxxxxxxxxxx> Cc: Linux RAID <linux-raid@xxxxxxxxxxxxxxx>; Phil Turmel <philip@xxxxxxxxxx>; NeilBrown <neilb@xxxxxxxx> Subject: Re: Failed adadm RAID array after aborted Grown operation Am 11.05.22 um 16:56 schrieb Reindl Harald: > > > Am 11.05.22 um 15:22 schrieb Bob Brand: >> Sorry Reindl. I'm not sure I understand. Are you saying I did or >> didn't do the right thing in booting from a CentOS rescue disk? At >> the moment it's running from the rescue disk and, be it the best >> distro to have used (or not), I would imagine that I need to keep >> running from the rescue disk until the reshape is complete as >> rebooting in the middle of a reshape is what got me in this mess. and nowhere did i say reboot now and i only responded to your "Do I understand that you would recommend upgrading our installation of Linux once the repair is complete or are advising downloading and compiling a new kernel as part of the repair?" nobody said that - the only point was use a as recent kernel as possible with all rgow/reshape operations > and i don't understand what you did not understand in the clear > response below you got days ago! > > due reshape you where advised use whatever rescue/live system with a > recent kernel and mdadm, not more and not less > > just to avoid probaly long fixed bugs in your old kernel > > --------------------- > > Try and get a CentOS 8.5 disk. At the end of the day, the version of > linux doesn't matter. What you need is an up-to-date rescue disk. > Distro/whatever is unimportant - what IS important is that you are > using the latest mdadm, and a kernel that matches. > > The problem you have sounds like a long-standing but now-fixed bug. An > original CentOS disk might be okay (with matched kernel and mdadm), > but almost certainly has what I consider to be a "dodgy" version of mdadm. > > If you can afford the downtime, after you've reverted the reshape, I'd > try starting it again with the rescue disk. It'll probably run fine. > Let it complete and then your old CentOS 7 will be fine with it CAUTION!!! This E-mail originated from outside of WMA Water. Do not click links or open attachments unless you recognize the sender and know the content is safe.
