Re: [CentOS] Intel RST RAID 1, partition tables and UUIDs

2020-11-16 Thread hw
On Mon, 2020-11-16 at 18:06 -0500, H wrote: > On 11/16/2020 01:23 PM, Jonathan Billings wrote: > > On Sun, Nov 15, 2020 at 07:49:09PM -0500, H wrote: > > > I have been having some problems with hardware RAID 1 on the > > > motherboard that I am running CentOS 7 on. After a BIOS upgrade of > > > the

[CentOS] Best practice preparing for disk restoring system

2020-11-16 Thread H
Short of backing up entire disks using dd, I'd like to collect all required information to make sure I can restore partitions, disk information, UUIDs and anything else required in the event of losing a disk. So far I am collecting information from: - fdisk -l - blkid - lsblk - grub2-efi.cfg - g

Re: [CentOS] Intel RST RAID 1, partition tables and UUIDs

2020-11-16 Thread H
On 11/16/2020 03:36 PM, John Pierce wrote: > the main advantage I know of for bios fake-raid is that the bios can boot > off either of the two mirrored boot devices.usually if the sata0 device > has failed, the BIOS isn't smart enough to boot from sata1 > > the only other reason is if you're ru

Re: [CentOS] Intel RST RAID 1, partition tables and UUIDs

2020-11-16 Thread H
On 11/16/2020 01:23 PM, Jonathan Billings wrote: > On Sun, Nov 15, 2020 at 07:49:09PM -0500, H wrote: >> I have been having some problems with hardware RAID 1 on the >> motherboard that I am running CentOS 7 on. After a BIOS upgrade of >> the system, I lost the RAID 1 setup and was no longer able t

Re: [CentOS] (C8) root on mdraid

2020-11-16 Thread Gordon Messmer
On 11/15/20 10:40 PM, Łukasz Posadowski wrote: Sun, 15 Nov 2020 14:16:48 -0800 Gordon Messmer : Use metadata version 1.2 instead of 0.9. Thanks, I'll try that. I'm use to metadata 0.9, because GRUB have (had?) some issue with the newer ones. If that doesn't work, and you need to use meta

Re: [CentOS] Intel RST RAID 1, partition tables and UUIDs

2020-11-16 Thread John Pierce
the main advantage I know of for bios fake-raid is that the bios can boot off either of the two mirrored boot devices.usually if the sata0 device has failed, the BIOS isn't smart enough to boot from sata1 the only other reason is if you're running MS Windows desktop which can't do mirroring on

Re: [CentOS] Intel RST RAID 1, partition tables and UUIDs

2020-11-16 Thread Jonathan Billings
On Sun, Nov 15, 2020 at 07:49:09PM -0500, H wrote: > > I have been having some problems with hardware RAID 1 on the > motherboard that I am running CentOS 7 on. After a BIOS upgrade of > the system, I lost the RAID 1 setup and was no longer able to boot > the system. The Intel RST RAID (aka Intel

Re: [CentOS] Apologies - possible hardware problem?

2020-11-16 Thread Jeffrey Layton
On Mon, Nov 16, 2020 at 4:49 PM wrote: > El 16/11/20 a las 15:43, Jeffrey Layton escribió: > > Thanks everyone for the help! I'm still struggling to get it working. I > > think I will have to go back and start simple: (1) one DIMM, (2) New PS, > > (3) maybe new MB (I can't ever access the BIOS an

Re: [CentOS] Apologies - possible hardware problem?

2020-11-16 Thread jtj
El 16/11/20 a las 15:43, Jeffrey Layton escribió: Thanks everyone for the help! I'm still struggling to get it working. I think I will have to go back and start simple: (1) one DIMM, (2) New PS, (3) maybe new MB (I can't ever access the BIOS any more). Jeff If you are going to discard all that

Re: [CentOS] mdadm raid-check

2020-11-16 Thread Valeri Galtsev
> On Nov 16, 2020, at 2:48 AM, hw wrote: > > On Sat, 2020-11-14 at 21:55 -0600, Valeri Galtsev wrote: >>> On Nov 14, 2020, at 8:20 PM, hw wrote: >>> >>> >>> Hi, >>> >>> is it required to run /usr/sbin/raid-check once per week? Centos 7 does >>> this. Maybe it's sufficient to run it monthl

Re: [CentOS] Apologies - possible hardware problem?

2020-11-16 Thread Jeffrey Layton
Thanks everyone for the help! I'm still struggling to get it working. I think I will have to go back and start simple: (1) one DIMM, (2) New PS, (3) maybe new MB (I can't ever access the BIOS any more). Jeff On Mon, Nov 16, 2020 at 9:54 AM José María Terry Jiménez wrote: > El 16/11/20 a las 10

Re: [CentOS] (C8) root on mdraid

2020-11-16 Thread John Pierce
On Mon, Nov 16, 2020, 2:29 AM Tony Mountifield wrote: > > I thought it was much more usual to partition both disks to give sda1,2,3 > and sdb1,2,3, and then create /dev/md0 from sda1/sdb1, /dev/md1 from > sda2/sdb3, > and so on. > What I always did was to mdraid a single full disk partition then

Re: [CentOS] (C8) root on mdraid

2020-11-16 Thread Tony Mountifield
In article <20201115123245.db62b8248e1f248afe028...@lukaszposadowski.pl>, Lukasz Posadowski wrote: > > Hello everyone. > > I'm trying to install CentOS 8 with root and swap partitions on > software raid. The plan is: > - create md0 raid level 1 with 2 hard drives: /dev/sda and /dev/sdb, > using

Re: [CentOS] Apologies - possible hardware problem?

2020-11-16 Thread José María Terry Jiménez
El 16/11/20 a las 10:03, hw escribió: On Mon, 2020-11-16 at 09:58 +0100, hw wrote: [...] Put a minimal amount of RAM in and go through all of the modules to see if one or some of them are broken. Replace all RAM or test it in another computer. Replace the power supply. Replace CPU or test it

Re: [CentOS] Apologies - possible hardware problem?

2020-11-16 Thread hw
On Mon, 2020-11-16 at 09:58 +0100, hw wrote: > > [...] > Put a minimal amount of RAM in and go through all of the modules to see if > one or some of them are broken. Replace all RAM or test it in another computer. > Replace the power supply. Replace CPU or test it in another mainboard. > Repla

Re: [CentOS] Apologies - possible hardware problem?

2020-11-16 Thread hw
On Sun, 2020-11-15 at 18:54 +, Jeffrey Layton wrote: > Good afternoon, > > I have a home workstation with an AMD CPU, Titan V GPU, 32 GB of memory, > and a root SSD and /home on spinning disks. > > Right now it has xubuntu 18.04 on it and it would boot fine. I shut it down > and restarted it

Re: [CentOS] mdadm raid-check

2020-11-16 Thread hw
On Sat, 2020-11-14 at 21:55 -0600, Valeri Galtsev wrote: > > On Nov 14, 2020, at 8:20 PM, hw wrote: > > > > > > Hi, > > > > is it required to run /usr/sbin/raid-check once per week? Centos 7 does > > this. Maybe it's sufficient to run it monthly? IIRC Debian did it monthly. > > On hardware