Need help with Rocket 750 HBA in Arch Linux

Starlord · February 7, 2019, 6:46pm

So some backstory.

Ended up picking up a Rocket 750 HBA on ebay for dirt cheap a few years ago. I’ve been using it in my unraid server ever since. It “just worked” out of the box with every upgrade. Fast forward to now and I’ve ditched unraid for MerferFS+Snapraid on Arch but even the most modern driver on their website completely didn’t work.

At the time I only had 9 drives so I just ran them off the mobo. thus the HBA got shelved. Fast forward to today and due to finding a crazy good deal on 20 new 1tb sandisk ssds I now have need for the HBA again. Still running in to the same driver issues. Rocket refused to help because I bought the card used and suggested downgrading to 4.9, installing the driver, then upgrading back to 4.20. I can’t get 4.9 even booting on my 2990wx system. There has to be a way to make the driver work with modern kernels as in unraid (4.19) is still works!

Instead of a tarball they gave us a weird auto installer script here: http://www.highpoint-tech.com/USA_new/series_r750-Download.htm

When running in arch this is the error it spits:

⋊> ~/Downloads sh r750-linux-src-v1.2.10.1-17_01_23.bin                 10:42:48
Verifying archive integrity... All good.
Uncompressing R750 Linux Open Source package installer...................................................
Please supply root's password to install this package. 
Password: 
Starting install R750 Linux Open Source package ............
Current running system is not a CentOS 6/Debian system.
Do you want to continue the installation? (y/n): y
install: target '/etc/init.d/' is not a directory: No such file or directory
Checking and building device driver for R750............
env: ‘/etc/init.d/hptdrv-monitor’: No such file or directory
env: ‘/etc/init.d/hptdrv-monitor’: No such file or directory
Driver r750 for some kernel built failed, please refer to file /var/log/hptdrv.log

⋊> ~/Downloads cat /var/log/hptdrv.log                                                                                                                                                       10:44:02
cat: /var/log/hptdrv.log: No such file or directory

Relevant Logs:

0b:00.0 RAID bus controller [0104]: HighPoint Technologies, Inc. Device [1103:0750] (rev c3)
	Subsystem: HighPoint Technologies, Inc. Device [1103:0000]

If I’m missing any crucial diag info please let me know. I could really the help here!

Thanks!

TheCakeIsNaOH · February 7, 2019, 8:55pm

So it is puking because it is trying to use a init script and Arch now has SystemD rather then init scripts. Arch does not have an init.d directory for backward compatibility with old programs.

Theoretically, you should be able to build it manually just fine, then modprobe the module to use it.

install.sh

#!/bin/bash

if test $(id -u) != “0”; then
echo "Please supply root’s password to install this package. "
su -c “$0”
ret=$?
exit $ret
fi

pidfile=/var/run/yum.pid

export DEBIAN_FRONTEND=noninteractive

checkyum()
{
if test -f “$pidfile”; then
if test “$1” = “check”; then
echo “YUM is being used: enter ‘q’ to exit the kernel-devel list.”
else
echo “YUM is being used: enter ‘q’ to exit the $1 installation.”
fi
while test -f “$pidfile”; do
echo -n .
read -t 1 c
if test “${c}” = “q”; then
exit 1
fi
done
echo
fi
}

installpkgcentos()
{
if ! type $1 >/dev/null 2>&1; then
if ! rpm -qe --quiet $1; then
echo “Installing required package: $1”
checkyum $1
yum -y --quiet install ${1} >/dev/null 2>&1
if test $? != 0; then
echo “Failed to install package $1.”
return 1
fi
fi
fi
return 0
}

checkapt()
{
lockfile=/var/lib/dpkg/lock

if test -f “$lockfile”; then
if lsof “$lockfile” >/dev/null 2>&1 ;then
if test “$1” = “check”; then
echo “APT is being used: enter ‘q’ to exit the linux-headers list.”
else
echo “APT is being used: enter ‘q’ to exit the $1 installation.”
fi
fi
while lsof “$lockfile” >/dev/null 2>&1; do
echo -n .
read -t 1 c
if test “${c}” = “q”; then
return 1
fi
done
fi
return 0
}

installpkgdebian()
{
if ! type $1 >/dev/null 2>&1; then
echo “Installing required package: $1”
checkapt $1
apt-get -y -qq install ${1} #>/dev/null 2>&1
if test $? != 0; then
echo “Failed to install package $1.”
return 1
fi
fi
return 0
}

checkpkg()
{
if ! type $1 > /dev/null 2>&1; then
return 1
else
return 0
fi
}

downloadinstall()
{
name=$(basename “$1”)
baseurl=$(dirname “$1”)
rm -f /var/tmp/${name}
if type curl > /dev/null 2>&1; then
if curl --connect-timeout 10 -s “${baseurl}/” 2>&1 | grep -s -q “${name}”; then
echo “Downloading package ${name} from ${baseurl}.”
curl --connect-timeout 10 -s -o /var/tmp/${name} “${baseurl}/${name}”
if test $? = 0; then
echo “Installing package ${name} from downloader.”
checkyum kernel-devel
yum -y --quiet localinstall /var/tmp/${name} >/dev/null 2>&1
rm -f /var/tmp/${name}
return 0
fi
fi
fi
return 1
}

installkerneldcentos()
{
cdroms=$(ls /dev/sr* 2>/dev/null)
if test “${cdroms}” != “”; then
for i in ${cdroms}; do
mkdir -p /var/tmp/cdrom
if test -e $i; then
mount $i /var/tmp/cdrom > /dev/null 2>&1
if test $? != “0”; then
rmdir /var/tmp/cdrom
continue
fi

    if test -f /var/tmp/cdrom/.discinfo; then
      break
   else
      umount /var/tmp/cdrom
      rmdir /var/tmp/cdrom
    fi
  fi
done

fi

#if ! test -d /var/tmp/cdrom; then

echo “Installation media was not found.”

#fi

kernels=$(rpm -qa kernel)

if test “$kernels” = “”; then
return 0
fi
kernelds=$(rpm -qa kernel-devel)
checkyum check
reps=$(yum --quiet --showduplicates list kernel-devel 2>/dev/null | grep ^Avail -A 100 | grep kernel-devel)

for kernel in ${kernels}; do
kerneld=${kernel/kernel/kernel-devel}
if echo “${kernelds}” | grep -s -q ^${kerneld}$; then
continue
fi

pkgversion=${kernel/kernel-}
pkgversion=$(echo ${pkgversion} | rev | cut -d. -f2- | rev)
inreps=0
if test "$pkgversion" != ""; then
  if echo "${reps}" | grep -s -q "${pkgversion}"; then
    inreps=1
  fi
fi

if test -f /var/tmp/cdrom/Packages/${kerneld}.rpm; then
  checkyum kernel-devel
  yum -y --quiet localinstall /var/tmp/cdrom/Packages/${kerneld}.rpm >/dev/null 2>&1
  if test $? != 0; then
    echo "Failed to install package ${kerneld}.rpm."
  fi
elif test "$inreps" = "1"; then
  echo "Installing package ${kerneld}.rpm from yum repository."
  checkyum kernel-devel
  yum -y --quiet install ${kerneld} >/dev/null 2>&1
  if test $? != 0; then
    echo "Failed to install package ${kerneld}.rpm."
  fi
elif test -e /etc/centos-release; then
  if echo ${pkgversion} | grep -s -q 2\\.6\\.32; then
    maj=6
    rev=$(echo ${pkgversion} | cut -d- -f2 | cut -d. -f1)
    dir=Packages
    if echo ${kerneld} | grep -s -q x86_64; then
      arch=x86_64
    else
      arch=i386
    fi
    case "${rev}" in
      71)
        dir=RPMS
        min=0
        ;;
      131)
        min=1
        ;;
      220)
        min=2
        ;;
      279)
        min=3
        ;;
      358)
        min=4
        ;;
      431)
        min=5
        ;;
      *)
        min=""
        ;;
    esac

    if test "${min}" = ""; then
      continue
    fi

    if test "${min}" -gt 3; then
      downloadinstall http://mirrors.kernel.org/centos/${maj}.${min}/os/${arch}/${dir}/${kerneld}.rpm
      if test $? = 0; then
        continue
      fi

      downloadinstall http://mirrors.kernel.org/centos/${maj}.${min}/updates/${arch}/${dir}/${kerneld}.rpm
      if test $? = 0; then
        continue
      fi
    fi

    downloadinstall http://mirror.symnds.com/distributions/CentOS-vault/${maj}.${min}/os/${arch}/${dir}/${kerneld}.rpm
    if test $? = 0; then
      continue
    fi

    downloadinstall http://mirror.symnds.com/distributions/CentOS-vault/${maj}.${min}/updates/${arch}/${dir}/${kerneld}.rpm
    if test $? = 0; then
      continue
    fi

    downloadinstall http://vault.centos.org/${maj}.${min}/os/${arch}/${dir}/${kerneld}.rpm
    if test $? = 0; then
      continue
    fi

    downloadinstall http://vault.centos.org/${maj}.${min}/updates/${arch}/${dir}/${kerneld}.rpm
    if test $? = 0; then
      continue
    else
      echo "Failed to download or install package ${kerneld}.rpm."
    fi
  fi
  continue
fi

done

if test -d /var/tmp/cdrom; then
umount /var/tmp/cdrom
rmdir /var/tmp/cdrom
fi
}

installkernelddebian()
{
for i in /boot/vmlinuz-*; do
#dpkg -S $i 2>/dev/null | cut -d: -f1
pkg=dpkg -S $i 2>/dev/null | cut -d: -f1
if test “$pkg” != “”; then
#pkg=echo $pkg
#pkg=echo $pkg
pkgd=${pkg/image/headers}
checkapt $pkgd
echo “Installing package ${pkgd} from APT repository.”
apt-get -y -qq install $pkgd
fi
done
}

#MODNAME=grep TARGETNAME product/*/linux/Makefile | sed s'# ##'g | cut -d\= -f2 | sed s'#\r##'
echo “Starting install R750 Linux Open Source package …”
MODNAME=r750

if test “$NOCOMPINSTALL” = “”; then
if test -e /etc/redhat-release; then
installpkgcentos gcc
checkpkg gcc
if test $? != 0; then
echo “Package gcc not installed and failed to install. exiting …”
exit 1
fi

installpkgcentos make
checkpkg make
if test $? != 0; then
  echo "Package make not installed and failed to install. exiting ..."
  exit 1
fi

installpkgcentos perl
checkpkg perl
if test $? != 0; then
  echo "Package perl not installed and failed to install. exiting ..."
  exit 1
fi

installkerneldcentos

elif test -e /etc/debian_version; then
installpkgdebian gcc
checkpkg gcc
if test $? != 0; then
echo “Package gcc not installed and failed to install. exiting …”
exit 1
fi

installpkgdebian make
checkpkg make
if test $? != 0; then
  echo "Package make not installed and failed to install. exiting ..."
  exit 1
fi

installpkgdebian perl
checkpkg perl
if test $? != 0; then
  echo "Package perl not installed and failed to install. exiting ..."
  exit 1
fi

installkernelddebian

else
echo “Current running system is not a CentOS 6/Debian system.”
echo -n "Do you want to continue the installation? (y/n): "
read ans
if test “$ans” != “y”; then
exit 1
fi

checkpkg gcc
if test $? != 0; then
  echo "Package gcc not installed. exiting ..."
  exit 1
fi

checkpkg make
if test $? != 0; then
  echo "Package make not installed. exiting ..."
  exit 1
fi

checkpkg perl
if test $? != 0; then
  echo "Package perl not installed. exiting ..."
  exit 1
fi

fi
fi

if [ “$MODNAME” == “” ]; then
echo “Could not determine driver name”
fi

rm -rf product//linux/.ko
rm -rf product/*/linux/.build

rm -rf /usr/share/hptdrv/$MODNAME
mkdir -p /usr/share/hptdrv/
cp -R pwd /usr/share/hptdrv/$MODNAME
rm -f /usr/share/hptdrv/$MODNAME/install.sh
rm -rf /usr/share/hptdrv/$MODNAME/dist
chown -R 0:0 /usr/share/hptdrv/$MODNAME

#touch /etc/sysconfig/hptdrv || exit 1
#echo MODLIST="$MODNAME" > /etc/sysconfig/hptdrv

if test -d /etc/rc.d/init.d; then
rm -f /etc/rc.d/init.d/hptdrv-monitor
install -m 755 -o root -g root dist/hptdrv-monitor /etc/rc.d/init.d/

if test -e /etc/debian_version; then
rm -f /etc/rc.d/init.d/hptmod
install -m 755 -o root -g root dist/hptmod /etc/rc.d/init.d/
str_sed=sed -n '/Required-Start:.*hptmod/p' /etc/rc.d/init.d/udev
if test “$str_sed” = “” ;then
sed -i ‘/Required-Start:/s/.*/&hptmod/’ /etc/rc.d/init.d/udev
fi
fi
elif test -d /etc/init.d; then
rm -f /etc/init.d/hptdrv-monitor
install -m 755 -o root -g root dist/hptdrv-monitor /etc/init.d/

if test -e /etc/debian_version; then
rm -f /etc/init.d/hptmod
install -m 755 -o root -g root dist/hptmod /etc/init.d/
str_sed=sed -n '/Required-Start:.*hptmod/p' /etc/init.d/udev
if test “$str_sed” = “” ;then
sed -i ‘/Required-Start:/s/.*/&hptmod/’ /etc/init.d/udev
fi
fi
fi
install -m 755 -o root -g root dist/hptdrv-rebuild /usr/sbin/

if test -d /var/lock/subsys; then
touch /var/lock/subsys/hptdrv-monitor
fi

if type update-rc.d >/dev/null 2>&1; then
update-rc.d -f hptdrv-monitor remove >/dev/null 2>&1
update-rc.d hptdrv-monitor defaults >/dev/null 2>&1

if test -e /etc/debian_version; then
update-rc.d -f hptmod remove >/dev/null 2>&1
if test -s /etc/init.d/.depend.boot; then
update-rc.d hptmod defaults >/dev/null 2>&1
update-rc.d hptmod enable S >/dev/null 2>&1
else
# start it before udev
update-rc.d hptmod start 03 S . >/dev/null 2>&1
fi
fi
else
if test -d /etc/rc.d/rc0.d; then
ln -sf …/init.d/hptdrv-monitor /etc/rc.d/rc0.d/K10hptdrv-monitor
fi
if test -d /etc/rc.d/rc6.d; then
ln -sf …/init.d/hptdrv-monitor /etc/rc.d/rc6.d/K10hptdrv-monitor
fi
if test -d /etc/rc.d/rc1.d; then
ln -sf …/init.d/hptdrv-monitor /etc/rc.d/rc1.d/S10hptdrv-monitor
fi
if test -d /etc/rc.d/rc2.d; then
ln -sf …/init.d/hptdrv-monitor /etc/rc.d/rc2.d/S10hptdrv-monitor
fi
if test -d /etc/rc.d/rc3.d; then
ln -sf …/init.d/hptdrv-monitor /etc/rc.d/rc3.d/S10hptdrv-monitor
fi
if test -d /etc/rc.d/rc4.d; then
ln -sf …/init.d/hptdrv-monitor /etc/rc.d/rc4.d/S10hptdrv-monitor
fi
if test -d /etc/rc.d/rc5.d; then
ln -sf …/init.d/hptdrv-monitor /etc/rc.d/rc5.d/S10hptdrv-monitor
fi
fi

OS=
[ -f /etc/lsb-release ] && OS=sed -n '/DISTRIB_ID/p' /etc/lsb-release | cut -d'=' -f2 | tr [[:upper:]] [[:lower:]]
if [ “${OS}” = “ubuntu” ] ;then
type upstart-udev-bridge > /dev/null 2>&1
if [ “$?” = 0 ] ;then
install -m 755 -o root -g root dist/hptdrv.conf /etc/init/
install -m 755 -o root -g root dist/udev.override /etc/init/
fi
fi

if type systemctl >/dev/null 2>&1; then
rm -f /lib/systemd/system/systemd-hptdrv.service
rm -f /usr/lib/systemd/system/systemd-hptdrv.service

if test -d /lib/systemd/system; then
install -m 644 -o root -g root dist/systemd-hptdrv.service /lib/systemd/system/
install -m 644 -o root -g root dist/hptdrv-monitor.service /lib/systemd/system/
elif test -d /usr/lib/systemd/system; then
# suse 13.1 bug
if test -f “/usr/lib/systemd/system/[email protected]”; then
mkdir -p “/usr/lib/systemd/system/[email protected]/”
install -m 644 -o root -g root dist/50-before-network-online.conf “/usr/lib/systemd/system/[email protected]/”
fi
install -m 644 -o root -g root dist/hptdrv-monitor.service /usr/lib/systemd/system/
install -m 644 -o root -g root dist/systemd-hptdrv.service /usr/lib/systemd/system/
fi

systemctl daemon-reload >/dev/null 2>&1
systemctl enable hptdrv-monitor.service >/dev/null 2>&1
systemctl enable systemd-hptdrv >/dev/null 2>&1
systemctl start hptdrv-monitor.service >/dev/null 2>&1
rm -f /etc/init.d/hptmod
install -m 755 -o root -g root dist/hptmod /etc/init.d/
fi

if [ -d /etc/initramfs-tools/scripts/init-top ]; then
install -m 755 -o root -g root dist/hptdrv /etc/initramfs-tools/scripts/init-top/
fi

#if [ -d /etc/initramfs-tools/conf.d ];then

file_p=/etc/initramfs-tools/conf.d/driver-policy

conf=""

if [ -f ${file_p} ] ;then

conf=`sed -n '/^MODULES=[a-z]*/p' ${file_p}`

fi

if [ “${conf}” = “” ] ;then

echo MODULES=dep >> ${file_p}

else

sed -i ‘s/^MODULES=[a-z]*/MODULES=dep/’ ${file_p}

fi

#fi

#if [ -d /etc/dracut.conf.d ]; then

echo “omit_drivers+=$MODNAME” > /etc/dracut.conf.d/${MODNAME}.conf

#fi

echo “Checking and building device driver for R750…”
env MODINSTALL=1 /etc/init.d/hptdrv-monitor start

if test “$NOCOMPINSTALL” = “”; then
env modules="${MODNAME}" /etc/init.d/hptdrv-monitor force-stop
if test $? != 0; then
echo “Driver r750 for some kernel built failed, please refer to file /var/log/hptdrv.log”
fi
fi

vim: expandtab ts=2 sw=2 ai

Starlord · February 8, 2019, 12:02am

Ok I tried that… maybe I’m missing a dependency?

⋊> ~/r/p/r/linux make                                                   15:59:32
make[1]: Entering directory '/usr/lib/modules/4.20.5-arch1-1-ARCH/build'
  CC [M]  /home/timb/r750-linux/product/r750/linux/.build/os_linux.o
In file included from /home/timb/r750-linux/product/r750/linux/.build/os_linux.c:6:
/home/timb/r750-linux/product/r750/linux/.build/os_linux.c: In function ‘pcicfg_read_byte’:
/home/timb/r750-linux/osm/linux/osm_linux.h:211:30: error: implicit declaration of function ‘pci_get_bus_and_slot’; did you mean ‘pci_get_domain_bus_and_slot’? [-Werror=implicit-function-declaration]
 #define HPT_FIND_SLOT_DEVICE pci_get_bus_and_slot
                              ^~~~~~~~~~~~~~~~~~~~
/home/timb/r750-linux/product/r750/linux/.build/os_linux.c:267:28: note: in expansion of macro ‘HPT_FIND_SLOT_DEVICE’
  struct pci_dev *pPciDev = HPT_FIND_SLOT_DEVICE(bus, PCI_DEVFN(dev,func));
                            ^~~~~~~~~~~~~~~~~~~~
/home/timb/r750-linux/osm/linux/osm_linux.h:211:30: warning: initialization of ‘struct pci_dev *’ from ‘int’ makes pointer from integer without a cast [-Wint-conversion]
 #define HPT_FIND_SLOT_DEVICE pci_get_bus_and_slot
                              ^~~~~~~~~~~~~~~~~~~~
/home/timb/r750-linux/product/r750/linux/.build/os_linux.c:267:28: note: in expansion of macro ‘HPT_FIND_SLOT_DEVICE’
  struct pci_dev *pPciDev = HPT_FIND_SLOT_DEVICE(bus, PCI_DEVFN(dev,func));
                            ^~~~~~~~~~~~~~~~~~~~
/home/timb/r750-linux/product/r750/linux/.build/os_linux.c: In function ‘pcicfg_read_word’:
/home/timb/r750-linux/osm/linux/osm_linux.h:211:30: warning: initialization of ‘struct pci_dev *’ from ‘int’ makes pointer from integer without a cast [-Wint-conversion]
 #define HPT_FIND_SLOT_DEVICE pci_get_bus_and_slot
                              ^~~~~~~~~~~~~~~~~~~~
/home/timb/r750-linux/product/r750/linux/.build/os_linux.c:276:28: note: in expansion of macro ‘HPT_FIND_SLOT_DEVICE’
  struct pci_dev *pPciDev = HPT_FIND_SLOT_DEVICE(bus, PCI_DEVFN(dev,func));
                            ^~~~~~~~~~~~~~~~~~~~
/home/timb/r750-linux/product/r750/linux/.build/os_linux.c: In function ‘pcicfg_read_dword’:
/home/timb/r750-linux/osm/linux/osm_linux.h:211:30: warning: initialization of ‘struct pci_dev *’ from ‘int’ makes pointer from integer without a cast [-Wint-conversion]
 #define HPT_FIND_SLOT_DEVICE pci_get_bus_and_slot
                              ^~~~~~~~~~~~~~~~~~~~
/home/timb/r750-linux/product/r750/linux/.build/os_linux.c:285:28: note: in expansion of macro ‘HPT_FIND_SLOT_DEVICE’
  struct pci_dev *pPciDev = HPT_FIND_SLOT_DEVICE(bus, PCI_DEVFN(dev,func));
                            ^~~~~~~~~~~~~~~~~~~~
/home/timb/r750-linux/product/r750/linux/.build/os_linux.c: In function ‘pcicfg_write_byte’:
/home/timb/r750-linux/osm/linux/osm_linux.h:211:30: warning: initialization of ‘struct pci_dev *’ from ‘int’ makes pointer from integer without a cast [-Wint-conversion]
 #define HPT_FIND_SLOT_DEVICE pci_get_bus_and_slot
                              ^~~~~~~~~~~~~~~~~~~~
/home/timb/r750-linux/product/r750/linux/.build/os_linux.c:294:28: note: in expansion of macro ‘HPT_FIND_SLOT_DEVICE’
  struct pci_dev *pPciDev = HPT_FIND_SLOT_DEVICE(bus, PCI_DEVFN(dev,func));
                            ^~~~~~~~~~~~~~~~~~~~
/home/timb/r750-linux/product/r750/linux/.build/os_linux.c: In function ‘pcicfg_write_word’:
/home/timb/r750-linux/osm/linux/osm_linux.h:211:30: warning: initialization of ‘struct pci_dev *’ from ‘int’ makes pointer from integer without a cast [-Wint-conversion]
 #define HPT_FIND_SLOT_DEVICE pci_get_bus_and_slot
                              ^~~~~~~~~~~~~~~~~~~~
/home/timb/r750-linux/product/r750/linux/.build/os_linux.c:301:28: note: in expansion of macro ‘HPT_FIND_SLOT_DEVICE’
  struct pci_dev *pPciDev = HPT_FIND_SLOT_DEVICE(bus, PCI_DEVFN(dev,func));
                            ^~~~~~~~~~~~~~~~~~~~
/home/timb/r750-linux/product/r750/linux/.build/os_linux.c: In function ‘pcicfg_write_dword’:
/home/timb/r750-linux/osm/linux/osm_linux.h:211:30: warning: initialization of ‘struct pci_dev *’ from ‘int’ makes pointer from integer without a cast [-Wint-conversion]
 #define HPT_FIND_SLOT_DEVICE pci_get_bus_and_slot
                              ^~~~~~~~~~~~~~~~~~~~
/home/timb/r750-linux/product/r750/linux/.build/os_linux.c:308:28: note: in expansion of macro ‘HPT_FIND_SLOT_DEVICE’
  struct pci_dev *pPciDev = HPT_FIND_SLOT_DEVICE(bus, PCI_DEVFN(dev,func));
                            ^~~~~~~~~~~~~~~~~~~~
/home/timb/r750-linux/product/r750/linux/.build/os_linux.c: In function ‘refresh_sd_flags’:
/home/timb/r750-linux/product/r750/linux/.build/os_linux.c:367:41: error: ‘struct gendisk’ has no member named ‘driverfs_dev’
       if (bdev->bd_disk && bdev->bd_disk->driverfs_dev==&SDptr->sdev_gendev) {
                                         ^~
/home/timb/r750-linux/product/r750/linux/.build/os_linux.c:372:37: error: ‘struct inode’ has no member named ‘i_mutex’; did you mean ‘i_mode’?
         mutex_lock(&bdev->bd_inode->i_mutex);
                                     ^~~~~~~
                                     i_mode
/home/timb/r750-linux/product/r750/linux/.build/os_linux.c:378:39: error: ‘struct inode’ has no member named ‘i_mutex’; did you mean ‘i_mode’?
         mutex_unlock(&bdev->bd_inode->i_mutex);
                                       ^~~~~~~
                                       i_mode
/home/timb/r750-linux/product/r750/linux/.build/os_linux.c: In function ‘os_request_timer’:
/home/timb/r750-linux/product/r750/linux/.build/os_linux.c:641:27: error: assignment to ‘void (*)(struct timer_list *)’ from incompatible pointer type ‘void (*)(long unsigned int)’ [-Werror=incompatible-pointer-types]
  vbus_ext->timer.function = os_timer_for_ldm;
                           ^
/home/timb/r750-linux/product/r750/linux/.build/os_linux.c:642:17: error: ‘struct timer_list’ has no member named ‘data’
  vbus_ext->timer.data = (unsigned long)vbus_ext;
                 ^
cc1: some warnings being treated as errors
make[2]: *** [scripts/Makefile.build:292: /home/timb/r750-linux/product/r750/linux/.build/os_linux.o] Error 1
make[1]: *** [Makefile:1562: _module_/home/timb/r750-linux/product/r750/linux/.build] Error 2
make[1]: Leaving directory '/usr/lib/modules/4.20.5-arch1-1-ARCH/build'
make: *** [../../../inc/linux_64mpa/Makefile.def:111: r750.ko] Error 2
⋊> ~/r/p/r/linux

Wait I’ve got a horribly stupid idea… hold my beer.

Edit 2: Ah damnit.

⋊> ~/r750-linux sudo strat centos sh install.sh                                                                                                                                                                    16:05:29
[sudo] password for timb: 
Starting install R750 Linux Open Source package ............
Checking and building device driver for R750............
Failed to build driver r750 for default boot kernel 4.20.6-arch1-1-ARCH.
⋊> ~/r750-linux

TheCakeIsNaOH · February 11, 2019, 6:47pm

Sorry, I totally forgot about this.

Since you have Unraid, and it works there, maybe you could check their kernel sources for what they have for the R750 driver? They HAVE to share the actual kernel since it is GPL, but they do not have to for the R750 module since it is not GPL, but they might anyway, you can’t know unless you look.

Then play around with the code and see if you can get something to compile correctly.