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View Full Version : Getting "attempt to read or write outside of disk 'hd0'" after install.



n9vmo
June 4th, 2020, 05:58 PM
After installing 20.04 (and any other previous version both desktop and server) I keep getting the error message attempt to read or write outside of disk "hd0" Entering rescue mode...


I have done a lot of reading on this and have tried all of the given solutions and none of them have worked. I have even loaded the Ubuntu LiveCd and run the Boot Rescue program and I still get the stated error.


The machine is a Dell R710 with a H700 Raid Controller with six 3TB HDDs in a Raid 50 configuration and I'm using all but ~500MB.


I also know that this is an Ubuntu install issue as I can load Windows 10 and have absolutely no errors.

What am I missing???

n9vmo
June 5th, 2020, 06:13 PM
Figured out my issue.

Machine was not set to UEFI but was in BIOS.

Changed setting and all is working now.