Thanks! I did have a look, but understanding the context helps more, otherwise you find a hundred different answers
sed -i 's/bullseye\/updates/bullseye-security/g' /etc/apt/sources.listThis looks like it has worked - upgrade in progress...
Evening all, I'm a long way out of touch/date but need an update (also beefed up the cpu in my mini server). I've run the excellent upgrade script from 4->5 worked a treat (except I stupidly ran it direct from the git repo and not pull and keep plex running, grrr). But rather than get my additional stuff in, thought it better to get the 5->6 jump in place first.
So I ran the omv-release-upgrade, and I'm getting
Err:18 https://deb.debian.org/debian-security bullseye/updates Release
404 Not Found [IP: 151.101.18.132 443]
...
E: The repository 'https://deb.debian.org/debian-security bullseye/updates Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.Now I've seen stiff about bullseye etc. but seems odd I got a 404? Once I'm on 6 I'll probably need help sorting my missing plugs (plex/transmissionweb) etc. 
thanks all
That worked for me as well after replacing 2TB drives (1 at a time then rebuilding) with 4TB, but didn't get any extra space - Thanks, not have 7.28TB instead of 3.1TB! Woohoo
Think I have this sorted - first fail the dick
mdadm --manage /dev/mdXXX --fail /dev/sdXWhere XXX is the raid IS and X is the disk ID - in my case "127" and "d" - This put the raid into a failed state, shut down the system, replaced the disk, then ran the recovery to rebuild.
I've got a Raid 5, which originally was 3 x 2TB disks - One disk failed, so I replaced it with a 4TB thinking thinking that at some stage I could upgrade the others to give me more space. I bought a couple of new disks about 6 months ago so thought about time to upgrade another disk, then after rebuild the last disk and then grow it. Problem is, if I just rip out the disk then the raid management then shows nothing at all, so I can't rebuild or do anything? After some advise - Current detail of raid below:-
Version : 1.2
Creation Time : Mon Dec 31 11:54:40 2012
Raid Level : raid5
Array Size : 3907025920 (3726.03 GiB 4000.79 GB)
Used Dev Size : 1953512960 (1863.02 GiB 2000.40 GB)
Raid Devices : 3
Total Devices : 3
Persistence : Superblock is persistent
Update Time : Wed Oct 21 21:26:44 2020
State : clean
Active Devices : 3
Working Devices : 3
Failed Devices : 0
Spare Devices : 0
Layout : left-symmetric
Chunk Size : 512K
Name : CowShed:Udders
UUID : 1c5ae26a:1c6abeac:888454b5:02badf80
Events : 19847Number Major Minor RaidDevice State
0 8 16 0 active sync /dev/sdb
3 8 32 1 active sync /dev/sdc
2 8 48 2 active sync /dev/sdd
So didn't get anywhere with this, so ended up disabling onboard raid... then it worked fine!!! Using software raid anyway so no loss, but still don't know why it changed.
A Picture tells a thousand words (so they say) - So my OMV won't boot, so I created a rescue USB http://www.system-rescue-cd.org/ and booted off of that. I can then mount and view the disk and it looks fine, even reinstall grub and check the boot partition... but still refusing to boot. Any ideas?
I't s HP Gen 8 microserver, first bay is 250gb disk for boot / system then other 3 disks are data (currently removed just in case!!)
Hmmm at a loss 
disk is there I can boot of a livecd and see everything but not booting from it at all. And all I get when I try a livecd is that the grub commands don't exist. ALmost quicker to just reinstall!
No bootable media...
Not really sure what's happened, but had some funnies so did an update and all seemed ok (except my xbox wouldn't talk to plex) so rebooted.... but it won't reboot, looks like grub is missing or something as disk seems ok. How do I sort/fix/repair the grub?
OK well, went for it, moved all 3 raid disks from one to the other, keeping them in the same order, and raid was seen all correctly on the gen 8! However 1 disk has now decided it doesn't like working any more... grrr.
I've had a Gen 8 micro server sitting around for a couple of months due to no time, but today was a day I had time!
Current NL54 setup - 30GB ssd boot/os drive (sda) , 3 x 2TB disks in raid 5, running OMV 2.
New Gen8 - 256GB HDD (sda, might swap to the above ssd once all running) running OMV 3. The Gen8 is a far more complex BIOS then the NL54 (which is just a PC), and I don't have the capacity to backup 4TB of data at present unless I buy a 4TB drive just to backup on. I had to make a single disk raid just to see a boot disk!
Whats the best way to move and rebuild the array without losing anything?
All advise welcome
So I’ve just bought. Hp gen8 server to replace my old nl54 (decided on 8 as I can upgrade cpu)... I’ve had a quick search and the impression I can get is that I can swap all the disks around and should be good? Seems a bit too easy? Currently I’ve a ssd boot drive in the nl54 and 4 x 1tb drives running as 1 (software raid I think).
Advice welcome before I lose everything 
Plexmediaserver update problems
This worked for me as well!
Ok, so been able to play less and less recently with my plex media server (1.03.2461) so ran "Sudo apt-get update/upgrade" to update and got to version 1.5... but still had a DEB download of 1.8 I could access. So downloaded this to the server and ran sudo dpkg -i plexmediaserver... and chose to keep my current config, and it all died and I don't know what to do ? SOS!:)
I can't seem to get or see any upgrades from the OMV web portal? Is there anything on command line I can do to kick an upgrade or clear cache for updates to latest 2.x?
Wiped and re-installed, quicker
So? Just re-install from USB? Or any chance of getting this running?
8.2
(Thanks)
Was paying a quick visit to my parents to copy a few bits *cough* and decided to do an upgrade while I was there.... bad move I've tried lots of stuff and now if I use apt-get install openmediavault it fails with unmet dependencies :-
php5-pam
proftpd-mod-vroot
php-proctitle
Unable to correct problems, you have broken packages
Really ballsed this up HELP! (Please)