Fixed
Created: Aug 31, 2017
Updated: Mar 4, 2019
Resolved Date: Oct 16, 2017
Found In Version: 9.0.0.9
Fix Version: 9.0.0.11
Severity: Severe
Applicable for: Wind River Linux 9
Component/s: Userspace
The system does not boot normally when using LVM inside /etc/fstab
It fails with the following error:
[FAILED] Failed to start LVM2 PV scan on device 3:1.
See 'systemctl status lvm2-pvscan@3:1.service' for details.
Disable the WRL9 lvm2 services and create a new one, based on the one from WRL8
# systemctl disable lvm2-lvmetad.service
# systemctl disable lvm2-lvmetad.socket
# systemctl disable lvm2-monitor.service
# systemctl disable lvm2-pvscan@.service
# systemctl mask lvm2-lvmetad.service
# systemctl mask lvm2-lvmetad.socket
# systemctl mask lvm2-monitor.service
# systemctl mask lvm2-pvscan@.service
# cat > /lib/systemd/system/lvm2.service << EOF
[Unit]
Description=LVM activation
DefaultDependencies=no
Before=local-fs.target
[Service]
ExecStart=/usr/sbin/vgchange -ay --sysinit
Type=oneshot
TimeoutSec=0
RemainAfterExit=yes
[Install]
WantedBy=sysinit.target
EOF
# systemctl enable lvm2.service
1. Clone the cgl branch of wrlinux9
$ git clone --branch WRLINUX_9_LTS_CVE https://windshare.windriver.com/ondemand/remote.php/gitsmart/WRLinux-9-LTS-CVE/wrlinux-9
2. Configure a project with:
$ ./wrlinux-9/setup.sh --machines qemux86-64 intel-x86-64 --distro wrlinux-cgl --layers wr-cgl --templates feature/kvm feature/vm-guest-support feature/wr-hp-support feature/syslog-ng feature/LAMP feature/installer-support feature/target-toolchain feature/gdb feature/oprofile feature/system-stats feature/valgrind feature/cgp-full
3. Source the environment
$ source oe-init-buil-env
4. change BB_NO_NETWORK to 0 in conf/local.conf
5. build the cgl image
$ bitbake wrlinux-image-glibc-cgl
6. create an aditional disk image for qemu
$ ./tmp/sysroots/x86_64-linux/usr/bin/qemu-img create -f qcow hd0.vdisk 5000M
7. Run the qemu image with the following command:
$ runqemu qemux86-64 nographic qemuparams="hd0.vdisk -boot order=c" bootparams="selinux=0"
9. Create a new partition for LVM volumes
# fdisk /dev/hda
Press n for a new partition.
Press p for a primary partition.
Partition number (1-4): 1
Enter the default first cylinder by pressing Enter.
Last cylinder or +size or +sizeM or +sizeK (2-400, default 400):
Set the type of partition by pressing t.
Choose the partition you created in the previous steps. In this example, the partition number is 1.
Enter 8e for a Linux LVM partition.
write changes to disk and quit.
Command (m for help): w
Command (m for help): q
10. Use lvmdiskscan to list the devices capable of being used as a physical volume. Then create a physical volume on one of them:
# pvcreate /dev/hda1
11. Create a volume group:
# vgcreate vg_opt /dev/hda1
12. Create logical volumes:
# lvcreate -L 4G vg_opt -n lv_opt
mkfs.ext4 /dev/mapper/vg_opt-lv_opt
mount /dev/mapper/vg_opt-lv_opt /opt
13. Create a mountpoint in /etc/fstab as such:
/dev/mapper/vg_opt-lv_opt /opt ext4 async,atime,auto,dev,exec,rw,suid,nouser 1 2
14. Reboot
After the reboot, the pvscan service will fail with a similar error:
[FAILED] Failed to start LVM2 PV scan on device 3:1.
See 'systemctl status lvm2-pvscan@3:1.service' for details.
