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...t part -------------- 31.07.2020 Tried, successfully, to fix the boot problems on maui (Centos 7.8) To get maui to boot at all an F32 USB stick was used and the first F32 boot option edited for every boot attempt. The changes required are summarised below. insmod part_gpt insmod ext2 linux (hd2, gpt3)/vm ... 18 ... root=/dev/sda5 iinitrd (hd2, gpt3)/initramfs ... 18 ... The above booted OK with a 90 second delay if /global & /home SSDs were not plugged in. fstab was subsequently edited and the nfs related entries temporarily commented out. //------------------------------------------------...

...hd1, gpt2)/grub2 > root = hd1, gpt2 > > grub# ls -lha > Device proc: filesystem type procfs > Device hd0: no known filesystem detected > Device hd1: no known filesystem detected > Partition hd1, gpt3: no known filesystem detected > Partition hd1, gpt2: filesystem xfs > Partition hd1, gpt1: filesystem fat > Device hd2: no known filesystem detected > Partition hd2, gpt3: no known filesystem detected >...

I am running an Intel x64 machine using UEFI to boot an SSD. Installing the latest yum update which includes grub2 and kernel 4.18.0-193.14.2.el8_2.x86_64 renders the machine unbootable, blank screen where grub should be, no error messages, just hangs. After some hours I managed to modify another bootable partition (containing older software) and boot it from there. After that, I? found out

...e:) prefix = (hd1, gpt2)/grub2 root = hd1, gpt2 grub# ls -lha Device proc: filesystem type procfs Device hd0: no known filesystem detected Device hd1: no known filesystem detected Partition hd1, gpt3: no known filesystem detected Partition hd1, gpt2: filesystem xfs Partition hd1, gpt1: filesystem fat Device hd2: no known filesystem detected Partition hd2, gpt3: no known filesystem detected Parti...