Re: [CentOS] Software RAID and GRUB on CentOS 7
$ sudo grep grub2 /var/log/anaconda/program.log This will get you the commands the installer used for installing the bootloader. Chris Murphy ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Software RAID and GRUB on CentOS 7
On 08/13/2016 11:31 AM, Gordon Messmer wrote: Anaconda will install grub2 to each component device for BIOS boot on RAID levels 0, 1, 4, 5, 6, and 10. Under EFI, only RAID1 is supported. https://github.com/rhinstaller/anaconda/blob/master/pyanaconda/bootloader.py ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Software RAID and GRUB on CentOS 7
On 08/11/2016 12:26 AM, Nicolas Kovacs wrote: When I perform a software RAID 1 or RAID 5 installation on a LAN server with several hard disks, I wonder if GRUB already gets installed on each individual MBR, or if I have to do that manually. Anaconda will install grub2 to each component device for BIOS boot on RAID levels 0, 1, 4, 5, 6, and 10. Under EFI, only RAID1 is supported. ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Software RAID and GRUB on CentOS 7
On 12/08/16 01:20, William A. Mahaffey III wrote: On 08/11/16 02:33, Nicolas Kovacs wrote: Hi, When I perform a software RAID 1 or RAID 5 installation on a LAN server with several hard disks, I wonder if GRUB already gets installed on each individual MBR, or if I have to do that manually. On CentOS 5.x and 6.x, this had to be done like this: # grub grub> device (hd0) /dev/sda grub> device (hd1) /dev/sdb grub> root (hd0,0) grub> setup (hd0) grub> root (hd1,0) grub> setup (hd1) grub> quit I'd like my server to be able to boot a degraded software RAID after an eventual hard disk failure. Any suggestions? Niki Kovacs I have an aging FC14 () system, w/ mdadm RAID partitions. I have /boot setup as mdadm RAID1's, 2 drives (actually partitions). Machine boots AOK, & I believe it does (& maintains) that setup automatically. I got that recommendation from a mailing list ages ago, can't remember where, sorry. $0.02, no more, no less [root@Q6600:/etc, Thu Aug 11, 08:25 AM] 1018 # df -h FilesystemTypeSize Used Avail Use% Mounted on /dev/md1 ext4917G 8.0G 863G 1% / tmpfstmpfs4.0G 0 4.0G 0% /dev/shm /dev/md0 ext4186M 60M 117M 34% /boot /dev/md3 ext41.8T 1.4T 333G 81% /home [root@Q6600:/etc, Thu Aug 11, 08:26 AM] 1019 # uname -a Linux Q6600 2.6.35.14-106.fc14.x86_64 #1 SMP Wed Nov 23 13:07:52 UTC 2011 x86_64 x86_64 x86_64 GNU/Linux [root@Q6600:/etc, Thu Aug 11, 08:26 AM] 1020 # I too use this kind of set up. however I do not believe that anything on the MBR is updated automatically by any yum/rpm updates. Thus in this kind of a setup, one needs to take manual steps. HTH Rob ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Software RAID and GRUB on CentOS 7
On 08/11/16 02:33, Nicolas Kovacs wrote: Hi, When I perform a software RAID 1 or RAID 5 installation on a LAN server with several hard disks, I wonder if GRUB already gets installed on each individual MBR, or if I have to do that manually. On CentOS 5.x and 6.x, this had to be done like this: # grub grub> device (hd0) /dev/sda grub> device (hd1) /dev/sdb grub> root (hd0,0) grub> setup (hd0) grub> root (hd1,0) grub> setup (hd1) grub> quit I'd like my server to be able to boot a degraded software RAID after an eventual hard disk failure. Any suggestions? Niki Kovacs I have an aging FC14 () system, w/ mdadm RAID partitions. I have /boot setup as mdadm RAID1's, 2 drives (actually partitions). Machine boots AOK, & I believe it does (& maintains) that setup automatically. I got that recommendation from a mailing list ages ago, can't remember where, sorry. $0.02, no more, no less [root@Q6600:/etc, Thu Aug 11, 08:25 AM] 1018 # df -h FilesystemTypeSize Used Avail Use% Mounted on /dev/md1 ext4917G 8.0G 863G 1% / tmpfstmpfs4.0G 0 4.0G 0% /dev/shm /dev/md0 ext4186M 60M 117M 34% /boot /dev/md3 ext41.8T 1.4T 333G 81% /home [root@Q6600:/etc, Thu Aug 11, 08:26 AM] 1019 # uname -a Linux Q6600 2.6.35.14-106.fc14.x86_64 #1 SMP Wed Nov 23 13:07:52 UTC 2011 x86_64 x86_64 x86_64 GNU/Linux [root@Q6600:/etc, Thu Aug 11, 08:26 AM] 1020 # -- William A. Mahaffey III -- "The M1 Garand is without doubt the finest implement of war ever devised by man." -- Gen. George S. Patton Jr. ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
[CentOS] Software RAID and GRUB on CentOS 7
Hi, When I perform a software RAID 1 or RAID 5 installation on a LAN server with several hard disks, I wonder if GRUB already gets installed on each individual MBR, or if I have to do that manually. On CentOS 5.x and 6.x, this had to be done like this: # grub grub> device (hd0) /dev/sda grub> device (hd1) /dev/sdb grub> root (hd0,0) grub> setup (hd0) grub> root (hd1,0) grub> setup (hd1) grub> quit I'd like my server to be able to boot a degraded software RAID after an eventual hard disk failure. Any suggestions? Niki Kovacs -- Microlinux - Solutions informatiques durables 7, place de l'église - 30730 Montpezat Web : http://www.microlinux.fr Mail : i...@microlinux.fr Tél. : 04 66 63 10 32 ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
