RHEV-M and gpt on RHEL Hypervisor
Hi,
we have the following problem:
We have some HS22 blades that should be used as hosts in an RHEV 3 cluster.
Those blades were installed with RHEL 6.2 on local disks. They have UEFI and are using a gpt.
Installation went fine and the blades were configured as described in the RHEV 3 installation guide.
They were even rebooted several time because of a kernel update and some test with the FC storage they are attached to.
Then we added them to the RHEV-M this installation also went without error and the bladed were rebooted and showed up as active in the RHEV-M.
After we rebooted one of those blades because of some hardware problem it would not boot because the filesystem check on bootup could not find the UUID for /boot as it was in /etc/fstab. After commenting this line in fstab the blade booted again but /boot is not accessible.
Parted shows three partitions on the local disk sda3 with lvm (standard rhel installation with swap, home, and root on lvm), one partiton with ext4 and on as fat16 (?)
Model: LSILOGIC Logical Volume (scsi)
Disk /dev/sda: 146GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Number Start End Size File system Name Flags
1 1049kB 211MB 210MB fat16 boot
2 211MB 735MB 524MB ext4
3 735MB 146GB 145GB lvm
/proc/partitions only shows sda and sda3
major minor #blocks name
8 0 142577664 sda
8 3 141858816 sda3
253 0 52428800 dm-0
253 1 67629056 dm-1
8 16 1073741824 sdb
8 48 524288000 sdd
8 32 1073741824 sdc
8 64 1073741824 sde
8 80 1073741824 sdf
8 96 524288000 sdg
8 112 1073741824 sdh
8 128 1073741824 sdi
8 144 524288000 sdj
8 160 1073741824 sdk
8 176 1073741824 sdl
8 192 524288000 sdm
253 2 1073741824 dm-2
253 3 524288000 dm-3
253 4 1073741824 dm-4
253 5 21798912 dm-5
253 6 524288 dm-6
253 7 2097152 dm-7
253 8 131072 dm-8
253 9 131072 dm-9
253 10 131072 dm-10
253 11 1048576 dm-11
According to fstab boot should be on UUID f492a943-cbca-49a7-bd10-fe9167bb2e64 but blkid does not show it:
/dev/block/253:4: UUID="5Lx0LZ-XTtv-Ch2j-kXrG-1Rl8-0pd4-blsrsu" TYPE="LVM2_member"
/dev/block/253:3: UUID="YWRoyg-VBy5-O4cP-w2gU-6j6H-drxc-IUo5C0" TYPE="LVM2_member"
/dev/sda3: UUID="3gSPH5-8SSO-z7nO-uzIC-Q9UJ-n4lI-n17wjf" TYPE="LVM2_member"
/dev/mapper/vg_rhevh02-lv_root: UUID="0d849236-17cf-4e49-aa24-c8f30569c5ad" TYPE="ext4"
/dev/mapper/vg_rhevh02-lv_swap: UUID="2ffb0c30-f597-4278-bf17-49a474183f45" TYPE="swap"
/dev/sdc: UUID="5Lx0LZ-XTtv-Ch2j-kXrG-1Rl8-0pd4-blsrsu" TYPE="LVM2_member"
/dev/sdd: UUID="YWRoyg-VBy5-O4cP-w2gU-6j6H-drxc-IUo5C0" TYPE="LVM2_member"
/dev/sde: UUID="n66IdL-tCFS-Np0e-P8Vl-3r11-IYqe-QDm3qy" TYPE="LVM2_member"
/dev/mapper/360080e5000241f88000002244ecfc6ca: UUID="n66IdL-tCFS-Np0e-P8Vl-3r11-IYqe-QDm3qy" TYPE="LVM2_member"
/dev/mapper/vg_rhevh02-lv_home: UUID="0f387474-e3dd-44db-ab9a-2aadce90f08c" TYPE="ext4"
/dev/sdh: UUID="n66IdL-tCFS-Np0e-P8Vl-3r11-IYqe-QDm3qy" TYPE="LVM2_member"
/dev/sdl: UUID="5Lx0LZ-XTtv-Ch2j-kXrG-1Rl8-0pd4-blsrsu" TYPE="LVM2_member"
/dev/sdm: UUID="YWRoyg-VBy5-O4cP-w2gU-6j6H-drxc-IUo5C0" TYPE="LVM2_member"
/dev/mapper/45a7ca1a--d836--4e8a--b3e8--866d5b514eda-master: UUID="4e21dbed-9254-4995-a110-20abf0f4a1cf" TYPE="ext3"
After checking the other blades (which did not have hardware issues) we noticed the same problem on them.
How can I get boot back?
Regards,
André