else
search --no-floppy --fs-uuid --set=root 8f04e328-185b-40d9-8f8a-19d3561dd769
fi
linux16 /vmlinuz-3.10.0-514.el7.x86_64 root=/dev/mapper/rhel-root ro
crashkernel=auto rd.lvm.lv=rhel/root rd.lvm.lv=rhel/swap rhgb quiet
LANG=en_US.UTF-8
pciehp.pciehp_force=1 pci=pcie_bus_perf
initrd16 /initramfs-3.10.0-514.el7.x86_64.img
}
menuentry 'Red Hat Enterprise Linux Server (0-
rescue-144afff501d4492e8c752cca7ff44971) 7.3 (Maipo)' --class red --class gnu-
linux --class gnu --class os --unrestricted $menuentry_id_option 'gnulinux-0-
rescue-144afff501d4492e8c752cca7ff44971-
advanced-13434f8c-9fd6-4b12-81bc-91f85ad32a89' {
load_video
insmod gzio
insmod part_msdos
insmod xfs
set root='hd0,msdos1'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos1 --hint-
efi=hd0,msdos1 --hint-baremetal=ahci0,msdos1 --hint='hd0,msdos1'
8f04e328-185b-40d9-8f8a-19d3561dd769
else
search --no-floppy --fs-uuid --set=root 8f04e328-185b-40d9-8f8a-19d3561dd769
fi
linux16 /vmlinuz-0-rescue-144afff501d4492e8c752cca7ff44971 root=/dev/mapper/rhel-
root ro crashkernel=auto rd.lvm.lv=rhel/root rd.lvm.lv=rhel/swap rhgb quiet
pciehp.pciehp_force=1 pci=pcie_bus_perf
initrd16 /initramfs-0-rescue-144afff501d4492e8c752cca7ff44971.img
}
### END /etc/grub.d/10_linux ###
…(Some code omitted.)
Step 5
Press
Esc
, enter
:wq
, and press
Enter
to save the edits.
Step 6
Restart the OS for the settings to take effect.
Step 7
Go to
----End
Kernel Parameter Configuration on RHEL 7.0/7.1/7.2 and CentOS 7.0/7.1/7.2
The following procedure uses CentOS 7.0 as an example.
Step 1
Log in to the operating system (OS) as an administrator.
Step 2
Run the
vim /boot/grub2/grub.cfg
command to open the boot configuration file.
Step 3
Enter
i
.
Step 4
In the boot configuration file, add
pciehp.pciehp_force=1 pci=pcie_bus_perf
to the boldface
part shown in the following:
Between the added content and its preceding content, a space is required and no line feed is
allowed.
…(Some code omitted.)
### BEGIN /etc/grub.d/10_linux ###
menuentry 'CentOS Linux, with Linux 3.10.0-123.el7.x86_64' --class centos --class
ES3000 V5 NVMe PCIe SSD
User Guide
4 Hot Swap
Issue 07 (2019-03-19)
Copyright © Huawei Technologies Co., Ltd.
49