[SOLVED] Ubuntu boots randonly from wrong Hard drive

[g1rnz]

Hi all, I have a PC with three Hard drives Master and two Slaves, Master has Ubuntu on and the first Slave has a cloned copy of the first as a backup and is bootable. my grub loader has an entry for both hard drives. however when booting if I select the master from the Grub list it will often but not always boot the slave. if I restart and try again it will then boot the correct hard drive ie the master. Any ideas what is the cause of this?

Graham

[logos34]

when booting if I select the master from the Grub list it will often but not always boot the slave. if I restart and try again it will then boot the correct hard drive ie the master. Any ideas what is the cause of this?

Identical UUIDs?

When you clone a drive, the UUID is copied too. If the menu.lst entries have duplicate kernel lines ('root=UUID=xxxx...') , that might be what's causing the mixup

[g1rnz]

Identical UUIDs?

When you clone a drive, the UUID is copied too. If the menu.lst entries have duplicate kernel lines ('root=UUID=xxxx...') , that might be what's causing the mixup

Both Hard drives had the Same UUID I had changed the menu.lst to show /dev/sdx instead of UUID but it still caused problems. I have now used tune2fs -u ramdom <device> to change one of the drives UUID and this seems to have solved the problem. The only issue now is that as I wish to backup the Master drive in the future with cloneziller I will have to change the UUID afterwards.

Thanks for help.
Graham