Useful GRUB KERNEL and LV Related Commands

...this is just a dump of a bash history file;

KERNEL Related;

journalctl _TRANSPORT=kernel MESSAGE=shutdown
sysctl kernel.perf_event_max_sample_rate
uname -r
dnf list available kernel
dnf list installed kernel
rpm -qa | grep kernel
dnf list kernel
dnf remove kernel-5.14.0-362.18.1.el9_3.0.1
dnf list kernel*
sudo dnf reinstall kernel kernel-core kernel-modules kernel-devel
dnf update --exclude=kernel* --exclude=kernel-core* --exclude=kernel-modules* --exclude=kernel-devel*
dnf update --exclude=kernel* --exclude=kernel-core* --exclude=kernel-modules* --exclude=kernel-devel* --exclude=kmod*
sudo dnf install dkms kernel-devel kernel-headers elfutils-libelf-devel
dnf install -y kernel-devel kernel-headers gcc make elfutils-libelf-devel
rpm -qf /usr/src/kernels/$(uname -r)

GRUB Related;

awk -F' '/menuentry / {print $2}' /etc/grub2.cfg
sudo awk -F' '/menuentry / {print $2}' /boot/grub2/grub.cfg
grubby --help
grubby --info=ALL
grub-editenv
grub2-editenv
grub2-editenv list
grub2-editenv - set timeout=3
sudo dd if=/dev/zero of=/boot/grub2/grubenv bs=1k count=1
sudo grub2-editenv /boot/grub2/grubenv create
sudo grub2-editenv /boot/grub2/grubenv set timeout=3
grub2-install --target=i386-pc --boot-directory=/tmp/sde1 /dev/sde
grub2-mkconfig -o /tmp/sde1/grub2/grub.cfg
dnf install grub2 grub2-tools grub2-efi-x64 shim efibootmgr
dnf reinstall grub2 grub2-tools grub2-efi-x64 shim efibootmgr
grub2-install --target=x86_64-efi --efi-directory=/boot/efi --bootloader-id=ApacheXa
grub2-install --target=x86_64-efi --efi-directory=/boot/efi --bootloader-id=ApacheXa --force
grub2-mkconfig -o /boot/grub2/grub.cfg

LV Related;

dnf install system-config-lvm
lvs --all --segments
lv display
lvd
lvm
lvdisplay
lvremove /dev/LVM_VMs/MariaDB.snapshot
lvremove /dev/LVM_VMs/STORAGE.snapshot
dnf lvm
dnf search lvm
dnf list *lvm*
lvremove VMs.snapshot
lvremove LVM_VMs-VMs.snapshot
lvremove LVM_VMs-VMs.snapshot-cow
pvcreate /dev/sdb2
vgcreate VG.SSD.P2 /dev/sdb2
lvcreate -L 32G -n LV.ROOT VG.SSD.P2
lvcreate -L 30G -n LV.ROOT VG.SSD.P2
vgs
vgdisplay
pvdisplay
pvcreate /dev/nvme1n1p4
vgcreate VG.NVMe.P4 /dev/nvme1n1p4
lvcreate --help
lvcreate -L 60G -n LV.Storage VG.NVMe.P4
lvm lvscan
vgchange -an LVM_ROOT_NVMe-ROOT
vgchange -an LVM_ROOT
vgchange -an LVM_ROOT_NVMe
vgchange -an LVM_Storage_NVMe
lvs -a -o +devices
dmsetup ls --target linear
dmsetup remove LVM_ROOT_NVMe-ROOT
dmsetup remove LVM_Storage_NVMe-Storage
pvdisplay /dev/nvme0n1p3
pvscan
pvscan /dev/nvme0n1
LVM_DEVICES=/dev/nvme0n1p3 pvs
LVM_DEVICES=/dev/nvme0n1p3 pvs -o+uuid
pvdisplay --help
pvdisplay --longhelp
pvcreate /dev/nvme0n1p1
lvremove /dev/VG.NVMe.P3/ApacheXb_VG.NVMe.P3-LV.ROOT.snapshot
lvremove /dev/VG.NVMe.P3/VG.NVMe.P3-LV.ROOT.snapshot
vgcfgbackup --help