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Automount LVM logical volume with a udev rule and udisks2
create raid1 from existing lvm local volumeWhy is this udev remove rule not working?confused about udevadm usagePersistent names for physical USB portsPermissions incorrect on symlink to /dev/ttyACM0 created by udev ruleUdev Rule to discern 2 identical webcams on Linuxudev high cpu problemudevadm rule works using “udevadm test” but not with “udevadm trigger”LVM: PV missing after rebootPossible to force udev to create specific device event number, or change device event numbers
I want to automatically mount an LVM logical volume on an external drive as soon as it is connected to the computer.
The solution I choose here is to use udev to detect plug in events and udisks2 to mount the partition. For other alternatives see a more generic approach of logical volume auto-mounting
I am asking for help to know if my approach of udev and udisks2 is doomed or if it is my achievement that failed. The following is a brief sum-up of all my attempt.
The simplest udev rule that does not work
To my mind udev rules seems to be appropriate to assert drive presence and set UDISKS_AUTO so I created the following rule in its own file /etc/udev/rules.d/61-lvm-automount-lv.rules
SUBSYSTEM=="block"
, ENVID_FS_UUID=="b32cefaa-041e-4ef7-8c82-fe53739aefff"
, ENVUDISKS_AUTO="1"
Then I reload the rules sudo udevadm control --reload (or even better restart my computer), check that the rule is read and UDISKS_AUTO is set to one for the given partition sudo udevadm test /sys/devices/virtual/block/dm-1 and confirm that in the end of the output I can see UDISKS_AUTO=1
However, when I unlplug/plug the external disk the partition is not mounted automatically.
I tried to find the maximum of information about what's going wrong thanks to journactl, udisksctl monitor but the only useful messages was from udevadm monitor --environment --udev showing that:
UDEV [3897.839040] change /devices/virtual/block/dm-1 (block)
.ID_FS_TYPE_NEW=ext4
ACTION=change
DEVLINKS=/dev/mapper/wdhdd0-wd0 /dev/disk/by-uuid/b32cefaa-041e-4ef7-8c82-fe53739aefff /dev/disk/by-label/wd /dev/disk/by-id/dm-name-wdhdd0-wd0 /dev/wdhdd0/wd0 /dev/disk/by-id/dm-uuid-LVM-hwQrCjWSOCCGpJqcdPv3NHaP3OOK6kFQj2Y6j3X51A69FEYNQeHtt8wVnVnlb93N
DEVNAME=/dev/dm-1
DEVPATH=/devices/virtual/block/dm-1
DEVTYPE=disk
DM_ACTIVATION=1
DM_COOKIE=6324838
DM_LV_LAYER=
DM_LV_NAME=wd0
DM_NAME=wdhdd0-wd0
DM_SUSPENDED=0
DM_UDEV_DISABLE_LIBRARY_FALLBACK_FLAG=1
DM_UDEV_PRIMARY_SOURCE_FLAG=1
DM_UDEV_RULES=1
DM_UDEV_RULES_VSN=2
DM_UUID=LVM-hwQrCjWSOCCGpJqcdPv3NHaP3OOK6kFQj2Y6j3X51A69FEYNQeHtt8wVnVnlb93N
DM_VG_NAME=wdhdd0
ID_FS_LABEL=wd
ID_FS_LABEL_ENC=wd
ID_FS_TYPE=ext4
ID_FS_USAGE=filesystem
ID_FS_UUID=b32cefaa-041e-4ef7-8c82-fe53739aefff
ID_FS_UUID_ENC=b32cefaa-041e-4ef7-8c82-fe53739aefff
ID_FS_VERSION=1.0
MAJOR=253
MINOR=1
SEQNUM=6641
SUBSYSTEM=block
TAGS=:systemd:
UDISKS_AUTO=1
USEC_INITIALIZED=5756122
So it seems that udisks2 should automatically mount this partition thanks to UDISKS_AUTO=1 but no. However, I can still execute udisksctl mount -b /dev/wdhdd0/wd0 and now the partition is mounted manually.
Other rules that does not work
Changing the value of UDISKS_SYSTEM
SUBSYSTEM=="block", ENVID_FS_UUID=="b32cefaa-041e-4ef7-8c82-fe53739aefff", ENVUDISKS_SYSTEM="0", ENVUDISKS_AUTO="1"
Add a rule to unignore the physical volume containing the logical volume with ENVUDISKS_IGNORE="0". I undestand perfectly why physical volume has to be hidden and not mounted in the filesystem but I though that maybe the logical volume inherit some properties.
Set my simple rule earlier in the order of the udev files to be loaded first. It requires adding IMPORTbuiltin="blkid" in the begining of the rule for those who wants to try. Conversely, I tried to put the simple rule in the end. It only requires to change the number in the name of the file 61-lvm-automount-lv.rules.
Goal
Ultimately, I would like that a given logical volume could be automatically mounted by my system exactly as standard (non-lvm) partitions are usually mounted. I am open to any suggestion on the best way to do that. I oriented this question with udev and udisks2 because it seems to do a perfect job for standard partition under Ubuntu, so I would like to achieve the same thing for LVM.
Edit
my /var/log/syslog right after plugging in the disk:
[12766.403419] usb 1-1: new high-speed USB device number 9 using xhci_hcd
[12766.553014] usb 1-1: New USB device found, idVendor=1058, idProduct=1003
[12766.553020] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[12766.553024] usb 1-1: Product: External HDD
[12766.553029] usb 1-1: Manufacturer: Western Digital
[12766.553032] usb 1-1: SerialNumber: 57442D574D41565531333130343938
[12766.553817] usb-storage 1-1:1.0: USB Mass Storage device detected
[12766.554314] scsi host5: usb-storage 1-1:1.0
mtp-probe: checking bus 1, device 9: "/sys/devices/pci0000:00/0000:00:14.0/usb1/1-1"
mtp-probe: bus: 1, device: 9 was not an MTP device
upowerd[2160]: unhandled action 'bind' on /sys/devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1:1.0
upowerd[2160]: unhandled action 'bind' on /sys/devices/pci0000:00/0000:00:14.0/usb1/1-1
kernel: [12767.564246] scsi 5:0:0:0: Direct-Access WD 15EARS External 1.75 PQ: 0 ANSI: 4
kernel: [12767.565075] sd 5:0:0:0: Attached scsi generic sg1 type 0
kernel: [12767.565196] sd 5:0:0:0: [sdc] 2930277168 512-byte logical blocks: (1.50 TB/1.36 TiB)
kernel: [12767.565482] sd 5:0:0:0: [sdc] Write Protect is off
kernel: [12767.565487] sd 5:0:0:0: [sdc] Mode Sense: 23 00 00 00
kernel: [12767.565740] sd 5:0:0:0: [sdc] No Caching mode page found
kernel: [12767.565749] sd 5:0:0:0: [sdc] Assuming drive cache: write through
kernel: [12767.620230] sdc: sdc1
kernel: [12767.621669] sd 5:0:0:0: [sdc] Attached SCSI disk
systemd[1]: Starting LVM2 PV scan on device 8:33...
lvm[31988]: 1 logical volume(s) in volume group "wdhdd0" now active
systemd[1]: Started LVM2 PV scan on device 8:33.
lvm udev automounting external-hdd udisks
asked yesterday
ÉmilienÉmilien
64
New contributor
Émilien is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
|
show 11 more comments
I want to automatically mount an LVM logical volume on an external drive as soon as it is connected to the computer.
The solution I choose here is to use udev to detect plug in events and udisks2 to mount the partition. For other alternatives see a more generic approach of logical volume auto-mounting
I am asking for help to know if my approach of udev and udisks2 is doomed or if it is my achievement that failed. The following is a brief sum-up of all my attempt.
The simplest udev rule that does not work
To my mind udev rules seems to be appropriate to assert drive presence and set UDISKS_AUTO so I created the following rule in its own file /etc/udev/rules.d/61-lvm-automount-lv.rules
SUBSYSTEM=="block"
, ENVID_FS_UUID=="b32cefaa-041e-4ef7-8c82-fe53739aefff"
, ENVUDISKS_AUTO="1"
Then I reload the rules sudo udevadm control --reload (or even better restart my computer), check that the rule is read and UDISKS_AUTO is set to one for the given partition sudo udevadm test /sys/devices/virtual/block/dm-1 and confirm that in the end of the output I can see UDISKS_AUTO=1
However, when I unlplug/plug the external disk the partition is not mounted automatically.
I tried to find the maximum of information about what's going wrong thanks to journactl, udisksctl monitor but the only useful messages was from udevadm monitor --environment --udev showing that:
UDEV [3897.839040] change /devices/virtual/block/dm-1 (block)
.ID_FS_TYPE_NEW=ext4
ACTION=change
DEVLINKS=/dev/mapper/wdhdd0-wd0 /dev/disk/by-uuid/b32cefaa-041e-4ef7-8c82-fe53739aefff /dev/disk/by-label/wd /dev/disk/by-id/dm-name-wdhdd0-wd0 /dev/wdhdd0/wd0 /dev/disk/by-id/dm-uuid-LVM-hwQrCjWSOCCGpJqcdPv3NHaP3OOK6kFQj2Y6j3X51A69FEYNQeHtt8wVnVnlb93N
DEVNAME=/dev/dm-1
DEVPATH=/devices/virtual/block/dm-1
DEVTYPE=disk
DM_ACTIVATION=1
DM_COOKIE=6324838
DM_LV_LAYER=
DM_LV_NAME=wd0
DM_NAME=wdhdd0-wd0
DM_SUSPENDED=0
DM_UDEV_DISABLE_LIBRARY_FALLBACK_FLAG=1
DM_UDEV_PRIMARY_SOURCE_FLAG=1
DM_UDEV_RULES=1
DM_UDEV_RULES_VSN=2
DM_UUID=LVM-hwQrCjWSOCCGpJqcdPv3NHaP3OOK6kFQj2Y6j3X51A69FEYNQeHtt8wVnVnlb93N
DM_VG_NAME=wdhdd0
ID_FS_LABEL=wd
ID_FS_LABEL_ENC=wd
ID_FS_TYPE=ext4
ID_FS_USAGE=filesystem
ID_FS_UUID=b32cefaa-041e-4ef7-8c82-fe53739aefff
ID_FS_UUID_ENC=b32cefaa-041e-4ef7-8c82-fe53739aefff
ID_FS_VERSION=1.0
MAJOR=253
MINOR=1
SEQNUM=6641
SUBSYSTEM=block
TAGS=:systemd:
UDISKS_AUTO=1
USEC_INITIALIZED=5756122
So it seems that udisks2 should automatically mount this partition thanks to UDISKS_AUTO=1 but no. However, I can still execute udisksctl mount -b /dev/wdhdd0/wd0 and now the partition is mounted manually.
Other rules that does not work
Changing the value of UDISKS_SYSTEM
SUBSYSTEM=="block", ENVID_FS_UUID=="b32cefaa-041e-4ef7-8c82-fe53739aefff", ENVUDISKS_SYSTEM="0", ENVUDISKS_AUTO="1"
Add a rule to unignore the physical volume containing the logical volume with ENVUDISKS_IGNORE="0". I undestand perfectly why physical volume has to be hidden and not mounted in the filesystem but I though that maybe the logical volume inherit some properties.
Set my simple rule earlier in the order of the udev files to be loaded first. It requires adding IMPORTbuiltin="blkid" in the begining of the rule for those who wants to try. Conversely, I tried to put the simple rule in the end. It only requires to change the number in the name of the file 61-lvm-automount-lv.rules.
Goal
Ultimately, I would like that a given logical volume could be automatically mounted by my system exactly as standard (non-lvm) partitions are usually mounted. I am open to any suggestion on the best way to do that. I oriented this question with udev and udisks2 because it seems to do a perfect job for standard partition under Ubuntu, so I would like to achieve the same thing for LVM.
Edit
my /var/log/syslog right after plugging in the disk:
[12766.403419] usb 1-1: new high-speed USB device number 9 using xhci_hcd
[12766.553014] usb 1-1: New USB device found, idVendor=1058, idProduct=1003
[12766.553020] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[12766.553024] usb 1-1: Product: External HDD
[12766.553029] usb 1-1: Manufacturer: Western Digital
[12766.553032] usb 1-1: SerialNumber: 57442D574D41565531333130343938
[12766.553817] usb-storage 1-1:1.0: USB Mass Storage device detected
[12766.554314] scsi host5: usb-storage 1-1:1.0
mtp-probe: checking bus 1, device 9: "/sys/devices/pci0000:00/0000:00:14.0/usb1/1-1"
mtp-probe: bus: 1, device: 9 was not an MTP device
upowerd[2160]: unhandled action 'bind' on /sys/devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1:1.0
upowerd[2160]: unhandled action 'bind' on /sys/devices/pci0000:00/0000:00:14.0/usb1/1-1
kernel: [12767.564246] scsi 5:0:0:0: Direct-Access WD 15EARS External 1.75 PQ: 0 ANSI: 4
kernel: [12767.565075] sd 5:0:0:0: Attached scsi generic sg1 type 0
kernel: [12767.565196] sd 5:0:0:0: [sdc] 2930277168 512-byte logical blocks: (1.50 TB/1.36 TiB)
kernel: [12767.565482] sd 5:0:0:0: [sdc] Write Protect is off
kernel: [12767.565487] sd 5:0:0:0: [sdc] Mode Sense: 23 00 00 00
kernel: [12767.565740] sd 5:0:0:0: [sdc] No Caching mode page found
kernel: [12767.565749] sd 5:0:0:0: [sdc] Assuming drive cache: write through
kernel: [12767.620230] sdc: sdc1
kernel: [12767.621669] sd 5:0:0:0: [sdc] Attached SCSI disk
systemd[1]: Starting LVM2 PV scan on device 8:33...
lvm[31988]: 1 logical volume(s) in volume group "wdhdd0" now active
systemd[1]: Started LVM2 PV scan on device 8:33.
lvm udev automounting external-hdd udisks
asked yesterday
ÉmilienÉmilien
64
New contributor
Émilien is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
This should work automatically. As far as I know, there is nothing special about LVs in this context - they are just another block device. But the place to look for problems/error messages are the system logs in/var/log, specificallymessageandsyslog. What do those say?
– Faheem Mitha
yesterday
1
I'd also recommend checking out udiskie. That's what I use. It's packaged for Debian, and thus for Ubuntu. And it sounds like you are using Ubuntu.
– Faheem Mitha
yesterday
Yes thanks for your advice I'll edit the main post with the content of syslog right after the disk is plugged in. Also I have seen udiskie while I was browsing the documentation and all the help I could find about udisks and udev, but I hav not tried udiskie yet so I'll try that latter and report my experience.
– Émilien
yesterday
However I have no /var/log/messages or anything similar maybe it has been removed from Ubuntu 18.04
– Émilien
yesterday
1
Check/var/log/syslog.
– Faheem Mitha
yesterday
|
show 11 more comments
I want to automatically mount an LVM logical volume on an external drive as soon as it is connected to the computer.
The solution I choose here is to use udev to detect plug in events and udisks2 to mount the partition. For other alternatives see a more generic approach of logical volume auto-mounting
I am asking for help to know if my approach of udev and udisks2 is doomed or if it is my achievement that failed. The following is a brief sum-up of all my attempt.
The simplest udev rule that does not work
To my mind udev rules seems to be appropriate to assert drive presence and set UDISKS_AUTO so I created the following rule in its own file /etc/udev/rules.d/61-lvm-automount-lv.rules
SUBSYSTEM=="block"
, ENVID_FS_UUID=="b32cefaa-041e-4ef7-8c82-fe53739aefff"
, ENVUDISKS_AUTO="1"
Then I reload the rules sudo udevadm control --reload (or even better restart my computer), check that the rule is read and UDISKS_AUTO is set to one for the given partition sudo udevadm test /sys/devices/virtual/block/dm-1 and confirm that in the end of the output I can see UDISKS_AUTO=1
However, when I unlplug/plug the external disk the partition is not mounted automatically.
I tried to find the maximum of information about what's going wrong thanks to journactl, udisksctl monitor but the only useful messages was from udevadm monitor --environment --udev showing that:
UDEV [3897.839040] change /devices/virtual/block/dm-1 (block)
.ID_FS_TYPE_NEW=ext4
ACTION=change
DEVLINKS=/dev/mapper/wdhdd0-wd0 /dev/disk/by-uuid/b32cefaa-041e-4ef7-8c82-fe53739aefff /dev/disk/by-label/wd /dev/disk/by-id/dm-name-wdhdd0-wd0 /dev/wdhdd0/wd0 /dev/disk/by-id/dm-uuid-LVM-hwQrCjWSOCCGpJqcdPv3NHaP3OOK6kFQj2Y6j3X51A69FEYNQeHtt8wVnVnlb93N
DEVNAME=/dev/dm-1
DEVPATH=/devices/virtual/block/dm-1
DEVTYPE=disk
DM_ACTIVATION=1
DM_COOKIE=6324838
DM_LV_LAYER=
DM_LV_NAME=wd0
DM_NAME=wdhdd0-wd0
DM_SUSPENDED=0
DM_UDEV_DISABLE_LIBRARY_FALLBACK_FLAG=1
DM_UDEV_PRIMARY_SOURCE_FLAG=1
DM_UDEV_RULES=1
DM_UDEV_RULES_VSN=2
DM_UUID=LVM-hwQrCjWSOCCGpJqcdPv3NHaP3OOK6kFQj2Y6j3X51A69FEYNQeHtt8wVnVnlb93N
DM_VG_NAME=wdhdd0
ID_FS_LABEL=wd
ID_FS_LABEL_ENC=wd
ID_FS_TYPE=ext4
ID_FS_USAGE=filesystem
ID_FS_UUID=b32cefaa-041e-4ef7-8c82-fe53739aefff
ID_FS_UUID_ENC=b32cefaa-041e-4ef7-8c82-fe53739aefff
ID_FS_VERSION=1.0
MAJOR=253
MINOR=1
SEQNUM=6641
SUBSYSTEM=block
TAGS=:systemd:
UDISKS_AUTO=1
USEC_INITIALIZED=5756122
So it seems that udisks2 should automatically mount this partition thanks to UDISKS_AUTO=1 but no. However, I can still execute udisksctl mount -b /dev/wdhdd0/wd0 and now the partition is mounted manually.
Other rules that does not work
Changing the value of UDISKS_SYSTEM
SUBSYSTEM=="block", ENVID_FS_UUID=="b32cefaa-041e-4ef7-8c82-fe53739aefff", ENVUDISKS_SYSTEM="0", ENVUDISKS_AUTO="1"
Add a rule to unignore the physical volume containing the logical volume with ENVUDISKS_IGNORE="0". I undestand perfectly why physical volume has to be hidden and not mounted in the filesystem but I though that maybe the logical volume inherit some properties.
Set my simple rule earlier in the order of the udev files to be loaded first. It requires adding IMPORTbuiltin="blkid" in the begining of the rule for those who wants to try. Conversely, I tried to put the simple rule in the end. It only requires to change the number in the name of the file 61-lvm-automount-lv.rules.
Goal
Ultimately, I would like that a given logical volume could be automatically mounted by my system exactly as standard (non-lvm) partitions are usually mounted. I am open to any suggestion on the best way to do that. I oriented this question with udev and udisks2 because it seems to do a perfect job for standard partition under Ubuntu, so I would like to achieve the same thing for LVM.
Edit
my /var/log/syslog right after plugging in the disk:
[12766.403419] usb 1-1: new high-speed USB device number 9 using xhci_hcd
[12766.553014] usb 1-1: New USB device found, idVendor=1058, idProduct=1003
[12766.553020] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[12766.553024] usb 1-1: Product: External HDD
[12766.553029] usb 1-1: Manufacturer: Western Digital
[12766.553032] usb 1-1: SerialNumber: 57442D574D41565531333130343938
[12766.553817] usb-storage 1-1:1.0: USB Mass Storage device detected
[12766.554314] scsi host5: usb-storage 1-1:1.0
mtp-probe: checking bus 1, device 9: "/sys/devices/pci0000:00/0000:00:14.0/usb1/1-1"
mtp-probe: bus: 1, device: 9 was not an MTP device
upowerd[2160]: unhandled action 'bind' on /sys/devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1:1.0
upowerd[2160]: unhandled action 'bind' on /sys/devices/pci0000:00/0000:00:14.0/usb1/1-1
kernel: [12767.564246] scsi 5:0:0:0: Direct-Access WD 15EARS External 1.75 PQ: 0 ANSI: 4
kernel: [12767.565075] sd 5:0:0:0: Attached scsi generic sg1 type 0
kernel: [12767.565196] sd 5:0:0:0: [sdc] 2930277168 512-byte logical blocks: (1.50 TB/1.36 TiB)
kernel: [12767.565482] sd 5:0:0:0: [sdc] Write Protect is off
kernel: [12767.565487] sd 5:0:0:0: [sdc] Mode Sense: 23 00 00 00
kernel: [12767.565740] sd 5:0:0:0: [sdc] No Caching mode page found
kernel: [12767.565749] sd 5:0:0:0: [sdc] Assuming drive cache: write through
kernel: [12767.620230] sdc: sdc1
kernel: [12767.621669] sd 5:0:0:0: [sdc] Attached SCSI disk
systemd[1]: Starting LVM2 PV scan on device 8:33...
lvm[31988]: 1 logical volume(s) in volume group "wdhdd0" now active
systemd[1]: Started LVM2 PV scan on device 8:33.
lvm udev automounting external-hdd udisks
asked yesterday
ÉmilienÉmilien
64
New contributor
Émilien is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
I want to automatically mount an LVM logical volume on an external drive as soon as it is connected to the computer.
The solution I choose here is to use udev to detect plug in events and udisks2 to mount the partition. For other alternatives see a more generic approach of logical volume auto-mounting
I am asking for help to know if my approach of udev and udisks2 is doomed or if it is my achievement that failed. The following is a brief sum-up of all my attempt.
The simplest udev rule that does not work
To my mind udev rules seems to be appropriate to assert drive presence and set UDISKS_AUTO so I created the following rule in its own file /etc/udev/rules.d/61-lvm-automount-lv.rules
SUBSYSTEM=="block"
, ENVID_FS_UUID=="b32cefaa-041e-4ef7-8c82-fe53739aefff"
, ENVUDISKS_AUTO="1"
Then I reload the rules sudo udevadm control --reload (or even better restart my computer), check that the rule is read and UDISKS_AUTO is set to one for the given partition sudo udevadm test /sys/devices/virtual/block/dm-1 and confirm that in the end of the output I can see UDISKS_AUTO=1
However, when I unlplug/plug the external disk the partition is not mounted automatically.
I tried to find the maximum of information about what's going wrong thanks to journactl, udisksctl monitor but the only useful messages was from udevadm monitor --environment --udev showing that:
UDEV [3897.839040] change /devices/virtual/block/dm-1 (block)
.ID_FS_TYPE_NEW=ext4
ACTION=change
DEVLINKS=/dev/mapper/wdhdd0-wd0 /dev/disk/by-uuid/b32cefaa-041e-4ef7-8c82-fe53739aefff /dev/disk/by-label/wd /dev/disk/by-id/dm-name-wdhdd0-wd0 /dev/wdhdd0/wd0 /dev/disk/by-id/dm-uuid-LVM-hwQrCjWSOCCGpJqcdPv3NHaP3OOK6kFQj2Y6j3X51A69FEYNQeHtt8wVnVnlb93N
DEVNAME=/dev/dm-1
DEVPATH=/devices/virtual/block/dm-1
DEVTYPE=disk
DM_ACTIVATION=1
DM_COOKIE=6324838
DM_LV_LAYER=
DM_LV_NAME=wd0
DM_NAME=wdhdd0-wd0
DM_SUSPENDED=0
DM_UDEV_DISABLE_LIBRARY_FALLBACK_FLAG=1
DM_UDEV_PRIMARY_SOURCE_FLAG=1
DM_UDEV_RULES=1
DM_UDEV_RULES_VSN=2
DM_UUID=LVM-hwQrCjWSOCCGpJqcdPv3NHaP3OOK6kFQj2Y6j3X51A69FEYNQeHtt8wVnVnlb93N
DM_VG_NAME=wdhdd0
ID_FS_LABEL=wd
ID_FS_LABEL_ENC=wd
ID_FS_TYPE=ext4
ID_FS_USAGE=filesystem
ID_FS_UUID=b32cefaa-041e-4ef7-8c82-fe53739aefff
ID_FS_UUID_ENC=b32cefaa-041e-4ef7-8c82-fe53739aefff
ID_FS_VERSION=1.0
MAJOR=253
MINOR=1
SEQNUM=6641
SUBSYSTEM=block
TAGS=:systemd:
UDISKS_AUTO=1
USEC_INITIALIZED=5756122
So it seems that udisks2 should automatically mount this partition thanks to UDISKS_AUTO=1 but no. However, I can still execute udisksctl mount -b /dev/wdhdd0/wd0 and now the partition is mounted manually.
Other rules that does not work
Changing the value of UDISKS_SYSTEM
SUBSYSTEM=="block", ENVID_FS_UUID=="b32cefaa-041e-4ef7-8c82-fe53739aefff", ENVUDISKS_SYSTEM="0", ENVUDISKS_AUTO="1"
Add a rule to unignore the physical volume containing the logical volume with ENVUDISKS_IGNORE="0". I undestand perfectly why physical volume has to be hidden and not mounted in the filesystem but I though that maybe the logical volume inherit some properties.
Set my simple rule earlier in the order of the udev files to be loaded first. It requires adding IMPORTbuiltin="blkid" in the begining of the rule for those who wants to try. Conversely, I tried to put the simple rule in the end. It only requires to change the number in the name of the file 61-lvm-automount-lv.rules.
Goal
Ultimately, I would like that a given logical volume could be automatically mounted by my system exactly as standard (non-lvm) partitions are usually mounted. I am open to any suggestion on the best way to do that. I oriented this question with udev and udisks2 because it seems to do a perfect job for standard partition under Ubuntu, so I would like to achieve the same thing for LVM.
Edit
my /var/log/syslog right after plugging in the disk:
[12766.403419] usb 1-1: new high-speed USB device number 9 using xhci_hcd
[12766.553014] usb 1-1: New USB device found, idVendor=1058, idProduct=1003
[12766.553020] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[12766.553024] usb 1-1: Product: External HDD
[12766.553029] usb 1-1: Manufacturer: Western Digital
[12766.553032] usb 1-1: SerialNumber: 57442D574D41565531333130343938
[12766.553817] usb-storage 1-1:1.0: USB Mass Storage device detected
[12766.554314] scsi host5: usb-storage 1-1:1.0
mtp-probe: checking bus 1, device 9: "/sys/devices/pci0000:00/0000:00:14.0/usb1/1-1"
mtp-probe: bus: 1, device: 9 was not an MTP device
upowerd[2160]: unhandled action 'bind' on /sys/devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1:1.0
upowerd[2160]: unhandled action 'bind' on /sys/devices/pci0000:00/0000:00:14.0/usb1/1-1
kernel: [12767.564246] scsi 5:0:0:0: Direct-Access WD 15EARS External 1.75 PQ: 0 ANSI: 4
kernel: [12767.565075] sd 5:0:0:0: Attached scsi generic sg1 type 0
kernel: [12767.565196] sd 5:0:0:0: [sdc] 2930277168 512-byte logical blocks: (1.50 TB/1.36 TiB)
kernel: [12767.565482] sd 5:0:0:0: [sdc] Write Protect is off
kernel: [12767.565487] sd 5:0:0:0: [sdc] Mode Sense: 23 00 00 00
kernel: [12767.565740] sd 5:0:0:0: [sdc] No Caching mode page found
kernel: [12767.565749] sd 5:0:0:0: [sdc] Assuming drive cache: write through
kernel: [12767.620230] sdc: sdc1
kernel: [12767.621669] sd 5:0:0:0: [sdc] Attached SCSI disk
systemd[1]: Starting LVM2 PV scan on device 8:33...
lvm[31988]: 1 logical volume(s) in volume group "wdhdd0" now active
systemd[1]: Started LVM2 PV scan on device 8:33.
lvm udev automounting external-hdd udisks
lvm udev automounting external-hdd udisks
asked yesterday
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edited 19 hours ago
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asked yesterday
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asked yesterday
ÉmilienÉmilien
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asked yesterday
ÉmilienÉmilien
64
64
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Émilien is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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New contributor
Émilien is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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This should work automatically. As far as I know, there is nothing special about LVs in this context - they are just another block device. But the place to look for problems/error messages are the system logs in/var/log, specificallymessageandsyslog. What do those say?
– Faheem Mitha
yesterday
1
I'd also recommend checking out udiskie. That's what I use. It's packaged for Debian, and thus for Ubuntu. And it sounds like you are using Ubuntu.
– Faheem Mitha
yesterday
Yes thanks for your advice I'll edit the main post with the content of syslog right after the disk is plugged in. Also I have seen udiskie while I was browsing the documentation and all the help I could find about udisks and udev, but I hav not tried udiskie yet so I'll try that latter and report my experience.
– Émilien
yesterday
However I have no /var/log/messages or anything similar maybe it has been removed from Ubuntu 18.04
– Émilien
yesterday
1
Check/var/log/syslog.
– Faheem Mitha
yesterday
|
show 11 more comments
This should work automatically. As far as I know, there is nothing special about LVs in this context - they are just another block device. But the place to look for problems/error messages are the system logs in/var/log, specificallymessageandsyslog. What do those say?
– Faheem Mitha
yesterday
1
I'd also recommend checking out udiskie. That's what I use. It's packaged for Debian, and thus for Ubuntu. And it sounds like you are using Ubuntu.
– Faheem Mitha
yesterday
Yes thanks for your advice I'll edit the main post with the content of syslog right after the disk is plugged in. Also I have seen udiskie while I was browsing the documentation and all the help I could find about udisks and udev, but I hav not tried udiskie yet so I'll try that latter and report my experience.
– Émilien
yesterday
However I have no /var/log/messages or anything similar maybe it has been removed from Ubuntu 18.04
– Émilien
yesterday
1
Check/var/log/syslog.
– Faheem Mitha
yesterday
This should work automatically. As far as I know, there is nothing special about LVs in this context - they are just another block device. But the place to look for problems/error messages are the system logs in
/var/log, specifically message and syslog. What do those say?– Faheem Mitha
yesterday
This should work automatically. As far as I know, there is nothing special about LVs in this context - they are just another block device. But the place to look for problems/error messages are the system logs in
/var/log, specifically message and syslog. What do those say?– Faheem Mitha
yesterday
1
1
I'd also recommend checking out udiskie. That's what I use. It's packaged for Debian, and thus for Ubuntu. And it sounds like you are using Ubuntu.
– Faheem Mitha
yesterday
I'd also recommend checking out udiskie. That's what I use. It's packaged for Debian, and thus for Ubuntu. And it sounds like you are using Ubuntu.
– Faheem Mitha
yesterday
Yes thanks for your advice I'll edit the main post with the content of syslog right after the disk is plugged in. Also I have seen udiskie while I was browsing the documentation and all the help I could find about udisks and udev, but I hav not tried udiskie yet so I'll try that latter and report my experience.
– Émilien
yesterday
Yes thanks for your advice I'll edit the main post with the content of syslog right after the disk is plugged in. Also I have seen udiskie while I was browsing the documentation and all the help I could find about udisks and udev, but I hav not tried udiskie yet so I'll try that latter and report my experience.
– Émilien
yesterday
However I have no /var/log/messages or anything similar maybe it has been removed from Ubuntu 18.04
– Émilien
yesterday
However I have no /var/log/messages or anything similar maybe it has been removed from Ubuntu 18.04
– Émilien
yesterday
1
1
Check
/var/log/syslog.– Faheem Mitha
yesterday
Check
/var/log/syslog.– Faheem Mitha
yesterday
|
show 11 more comments
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-automounting, external-hdd, lvm, udev, udisks
This should work automatically. As far as I know, there is nothing special about LVs in this context - they are just another block device. But the place to look for problems/error messages are the system logs in
/var/log, specificallymessageandsyslog. What do those say?– Faheem Mitha
yesterday
1
I'd also recommend checking out udiskie. That's what I use. It's packaged for Debian, and thus for Ubuntu. And it sounds like you are using Ubuntu.
– Faheem Mitha
yesterday
Yes thanks for your advice I'll edit the main post with the content of syslog right after the disk is plugged in. Also I have seen udiskie while I was browsing the documentation and all the help I could find about udisks and udev, but I hav not tried udiskie yet so I'll try that latter and report my experience.
– Émilien
yesterday
However I have no /var/log/messages or anything similar maybe it has been removed from Ubuntu 18.04
– Émilien
yesterday
1
Check
/var/log/syslog.– Faheem Mitha
yesterday