May 31, 2018 GRUB can only be installed in this setup by using blocklists. However, blocklists are UNRELIABLE and their use is discouraged error: will not proceed with blocklists. September 25, 2019 at 6:30 pm. I have to add this feedback for grub2-install. GRUB can only be installed in this setup by using blocklists. However, blocklists are UNRELIABLE and their use is discouraged. Installation finished.
Applicable Products
- XenServer 7.0
- XenServer 7.1
Symptoms or Error
Solution
Take pool metadata backup of the VM's on shared as well as Local SR's of the pool.
1. Eject the slave server out (make sure that there is no data on Local SR)
2. Check 'fdisk -l /dev/sda' on slave host,There would be /dev/sda1 listed as 'Dell Utility'
3. Delete the sda1 partition on slave using below commands,
-> fdisk /dev/sda
-> Enter 'd'
-> Select partition number as1
-> Enter 'w'
-> Enter 'q'
4. Perform clean installation of XS 6.5
5. Test by upgrading to 7.0 - if successful
6. Downgrade the server back to 6.5.
7. In order to add it back to the pool apply hotfixes upto same level as of the master host.
8. Add server back to the pool
9. Make it master.
10.Repeat the same steps with other host (from step 1 to 8)
11. Upgrade the pool to 7.0 now.
1. Eject the slave server out (make sure that there is no data on Local SR)
2. Check 'fdisk -l /dev/sda' on slave host,There would be /dev/sda1 listed as 'Dell Utility'
3. Delete the sda1 partition on slave using below commands,
-> fdisk /dev/sda
-> Enter 'd'
-> Select partition number as1
-> Enter 'w'
-> Enter 'q'
4. Perform clean installation of XS 6.5
5. Test by upgrading to 7.0 - if successful
6. Downgrade the server back to 6.5.
7. In order to add it back to the pool apply hotfixes upto same level as of the master host.
8. Add server back to the pool
9. Make it master.
10.Repeat the same steps with other host (from step 1 to 8)
11. Upgrade the pool to 7.0 now.
Problem Cause
/dev/sda1 partition was the Dell Utility Partition
Grub 2, the Ubuntu and Linux Mint’s default bootloader typically gets overridden when you install Windows as a dual-boot OS. To make Ubuntu and its derivatives boot again, you need to reinstall (repair/restore) Grub using a bootable Ubuntu/LinuxMint CD or USB.
Typically you’ll get the following error boot screen:
Tutorial Objectives:
- Reinstall Grub 2 when Ubuntu or Linux Mint won’t boot
- Enjoy!
To get started, insert your Ubuntu USB into computer and boot up. When you’re in, follow the steps below to reinstall grub 2:
1. Open Gparted Partition Editor from Unity Dash to check out which partition your Ubuntu/Linux Mint system installed. It is usually a EXT4 Partition.
In my case, there’re 3 Ext4 partitions. We can check the user names on each partition after step 2 by command
cd /mnt/ && ls home/
gparted partition editor
2. Press Ctrl+Alt+T on keyboard to open terminal. When it opens, run command below to mount the partition:
![Grub-install error embedding is not possible but this is required for cross-disk install Grub-install error embedding is not possible but this is required for cross-disk install](http://i.stack.imgur.com/5tpb2.png)
3. Now reinstall Grub2 via command below:
If the installation is successful, you will get the similar output:
4. Finally update grub boot loader and done!