Updated elevator noop->none and ensure sysfsutils is enabled at boot

5 files changed, 27 insertions, 5 deletions

diff --git a/README.txt b/README.txt
index f89715f..3fce4a5 100644
--- a/README.txt
+++ b/README.txt
@@ -211,19 +211,29 @@ ZFS_INITRD_ADDITIONAL_DATASETS="$POOL/users $POOL/users/root $POOL/backup $POOL/
 vi /etc/default/grub
 +++
 Remove quiet from: GRUB_CMDLINE_LINUX_DEFAULT
-Add 'elevator=noop' to: GRUB_CMDLINE_LINUX_DEFAULT
-    GRUB_CMDLINE_LINUX_DEFAULT="elevator=noop"
+Add 'elevator=none' to: GRUB_CMDLINE_LINUX_DEFAULT
+    GRUB_CMDLINE_LINUX_DEFAULT="elevator=none"
 Uncomment: GRUB_TERMINAL=console
 Save and quit.
 +++
 # (JAU - Required for ZFS 0.7)
 ++
 # /etc/default/grub
-GRUB_CMDLINE_LINUX_DEFAULT="elevator=noop"
+GRUB_CMDLINE_LINUX_DEFAULT="elevator=none"
 GRUB_CMDLINE_LINUX="root=ZFS=$POOL/system/debian boot=zfs rpool=$POOL bootfs=$POOL/system/debian"
 ++
 +++
 
++++
+# ensure sysfsutils is enabled at boot
+systemctl is-enabled sysfsutils
++++
+
+Also check if you need /etc/sysfs.d/block_scheduler.conf using sysfsutil
++++
+/sys/block/nvme0n1/queue/scheduler = none
++++
+
 #5.0 Configure a basic system environment:
 #
 
diff --git a/scripts/check-io_scheduler.sh b/scripts/check-io_scheduler.sh
new file mode 100644
index 0000000..a63fa79
--- /dev/null
+++ b/scripts/check-io_scheduler.sh
@@ -0,0 +1,3 @@
+#! /bin/sh
+
+for i in /sys/block/* ; do echo $i ; cat $i//queue/scheduler ; done
diff --git a/scripts/debootstrap01.sh b/scripts/debootstrap01.sh
index 9c33ebe..58dba90 100644
--- a/scripts/debootstrap01.sh
+++ b/scripts/debootstrap01.sh
@@ -24,7 +24,7 @@ mkdir -p $STRAPROOT/var/tmp
 chmod 1777 $STRAPROOT/var/tmp
 
 debootstrap --arch=amd64 --variant=buildd \
-   --include=net-tools,ifupdown,isc-dhcp-client,vim,openssh-server,locales,rsync,sharutils,psmisc,htop,iftop,patch,less \
+   --include=sysfsutils,net-tools,ifupdown,isc-dhcp-client,vim,openssh-server,locales,rsync,sharutils,psmisc,htop,iftop,patch,less \
    --components main,contrib,non-free bullseye $STRAPROOT
 
 echo $MYHOSTNAME > $STRAPROOT/etc/hostname
diff --git a/scripts/debootstrap02.sh b/scripts/debootstrap02.sh
index 513b8de..f683d48 100644
--- a/scripts/debootstrap02.sh
+++ b/scripts/debootstrap02.sh
@@ -39,7 +39,7 @@ apt-get install --yes \
     debootstrap xorriso live-build syslinux isolinux squashfs-tools genisoimage memtest86+
 
 apt-get install --yes \
-    hwinfo dmidecode cpuid cpufrequtils pciutils usbutils hwdata discover \
+    sysfsutils hwinfo dmidecode cpuid cpufrequtils pciutils usbutils hwdata discover \
     gnupg gnupg-agent gnupg2 \
     git git-buildpackage git-cola git-core git-cvs git-doc git-email git-gui git-man git-svn gitk \
     nano pv vim \
@@ -52,6 +52,9 @@ apt-get install --yes \
     rsync tcpdump wget openssh-server openssh-client iptables \
     lsof rpcbind iptraf iftop wireshark tcpdump pcaputils ngrep
 
+# ensure sysfsutils is enabled at boot
+systemctl is-enabled sysfsutils
+
 # Replace Debian ZFS packages and replace with vanilla latest release
 . ./zfs-bullseye-remove.sh
 . ./zfs-2.0.2-1-install-debian11.sh
diff --git a/scripts/s02.sh b/scripts/s02.sh
index 4cf1622..290abd4 100644
--- a/scripts/s02.sh
+++ b/scripts/s02.sh
@@ -8,6 +8,12 @@ apt-get clean
 echo SET ROOT PASSWORD
 passwd root
 
+echo "Check /etc/default/grub for ZFS ROOT and elevator=none"
+echo "/etc/default/grub: GRUB_CMDLINE_LINUX_DEFAULT=\"elevator=none\""
+echo
+echo "Also check if you need /etc/sysfs.d/block_scheduler.conf using sysfsutil"
+echo
+
 echo Test whether grub detects ZFS ROOT
 echo grub-probe /
 grub-probe /