When I attempt to boot CentOS 7 to a machine with an NVIDIA graphics card using a boot stick, the boot attempt fails with the message "Unknown Maxwell Chipset". I have read other reports on this site including viewtopic.php?f=49&t=48563 which describes replacing the nouveau drivers with NVIDIA drivers. The other posting that they hope support for Maxwell/NVIDIA drivers will be a part of CentOS 7.1, but I downloaded CentOS 7 a few days ago from http://www.centos.org/download. Is there a newer ISO download that supports the Maxwell chipset? Otherwise, I need a workaround using the shell as follows:
In my case, the boot failure generates the http://man7.org/linux/man-pages/man8/dracut.8.html. It also gives the path of a log file, and the ability to run journalctl, but I do not know how to save those logs to a disk for printing from windows.
How can I use the Dracut Emergency Shell to install the NVIDIA drivers required to resolve this error? A series of specific code lines to type into the Dracut Emergency Shell would be an answer.
I found http://www.advancedclustering.com/act-k ... l-centos-7 which lists the following steps for replacing the nouveau drivers with the NVidia drivers:
•yum -y update
•yum -y groupinstall “GNOME Desktop” “Development Tools”
•yum -y install kernel-devel
•Edit /etc/default/grub. Add “rd.driver.blacklist=nouveau nouveau.modeset=0″ to “GRUB_CMDLINE_LINUX”
•grub2-mkconfig -o /boot/grub2/grub.cfg
•List available kernels: awk -F\’ ‘$1==”menuentry ” {print $2}’ /etc/grub2.cfg
•Use grub2-set-default to set the updated kernel to the default. The kernels are enumerated starting at 0
•Reboot
•Download the appropriate Nvidia driver for your card
•Switch from graphical to text mode: systemctl isolate multi-user.target
•Run the Nvidia driver installer
•Remove the nouveau driver: yum remove xorg-x11-drv-nouveau
•Backup old the old initramfs: mv /boot/initramfs-$(uname -r).img /boot/initramfs-$(uname -r)-nouveau.img
•Create new initramfs: dracut /boot/initramfs-$(uname -r).img $(uname -r)
•Reboot
The problem is that most of the above commands are not available in the Dracot Emergency Shell. So the need is to translate the above commands into Dracut-friendly syntax.How do I make the translation?
A complete list of commands accepted by the Dracut Emergency Shell is as follows:
Code: Select all
!
./
:
[
[[
]]
alias
arping
basename
bash
bg
bind
biosdevname
blkid
blockdev
brctl
break
btrfs
btrfs-zero-log
btrfsck
builtin
caller
case
cat
cd
checkisomd5
chroot
command
compgen
complete
compopt
continue
coproc
cp
crypt-run-generator
crypt-root-ask
cryptsetup
dcbtool
dd
declare
dhclient
dhclient-script
dirs
disown
dmesg
dmeventd
dmraid
dmraid_scan
dmsetup
dmsquash-live-root
do
done
dracut-cmdline
dracut-cmdline-ask
dracut-emergency
dracut-initqueue
dracut-mount
dracut-pre-mount
dracut-pre-pivot
dracut-pre-pivot
dracut-pre-pivot
dracut-pre-trigger
dracut-pre-udev
e2fsck
echo
elif
else
enable
esac
eval
exec
exit
export
false
fc
fcoe-edd
fcoe-genrules.sh
fcoe-up
fg
fi
findmnt
fipvlan
flock
for
fsck
fsck.btrfs
fsck.cramfs
fsck.ext2
fsck.ext3
fsck.ext4
fsck.fat
fsck.minix
fsck.msdos
fsck.vfat
fsck.xfs
function
getopts
grep
gzip
halt
hash
help
history
hostname
if
ifup
in
init
initqueue
insmodpost.sh
ip
iscsi-iname
iscsiroot
iscsistart
iscsiuio
iso-scan
jobs
journalctl
kbd_mode
kexec
kill
kmod
kpartx
less
let
llpad
lldptool
ln
loadkeys
local
loginctl
loginit
logout
losetup
ls
lvm
lvm_scan
mapfile
mdadm
mdman
mdraid-cleanup
mdraid_start
mkdir
mkfifo
mknod
modprob
mount
mpathpersist
multipath
multipathd
mv
netroot
nologin
partx
pdata_tools
ping
ping6
Plymouth
plymouthd
popd
poweroff
printf
probe-keydev
ps
pushdev
pwd
rdsosreport
read
readarray
readlink
readonly
reboot
return
rm
rmdir
rmmod
sed
select
set
setfont
setsid
sh
shift
shopt
sleep
source
stty
suspend
swapoff
systemctl
systemd-ask-password
system-cgls
system-run
system-tmpfiles
system-tty-ask-password-agent
teamd
teamdctl
teamnl
test
then
thin-check
thin-dump
thin-repair
thin-restore
time
times
tr
trap
true
type
typeset
udevadm
ulimit
umask
umount
unalias
uname
unset
until
vi
wait
while
xfs_db
xfs_metadump
xfs_repair
{
}
Finally, if there is an easier way to install CentOS 7 from a bootstick onto a machine with an NVIDIA graphics card, please let me know. The above is just my work so far from the research I have been able to do.
