ZFS on Linux: Which mountpoint option when mounting manually per script?Upgraded Ubuntu, all drives in one...
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ZFS on Linux: Which mountpoint option when mounting manually per script?
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ZFS on Linux: Which mountpoint option when mounting manually per script?
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I want to create a zpool with ZFS on Linux (7.13) on Ubuntu 18.04. The problem is that the pool will be created based on LUKS encrypted drives (not root, only external). These drives are decrypted and loaded during boot by a script which i created since they are pulling a key file from an external source.
To avoid any issues with timing where the system wants to mount the zpool before the drives are decrypted and loaded I would like to mount the pool also manually as part of the script.
Now I ask myself which option I should choose for the mountpoint at creating the pool: none or legacy
The man page does not really help what the real difference is:
If a file system's mount point is set to legacy ZFS makes no attempt to manage the file system, and the administrator is responsible for mounting and unmounting the file system. Because pools must be imported before a legacy mount can succeed, administrators should ensure that legacy mounts are only attempted after the zpool import process finishes at boot time. For example, on machines using systemd, the mount option
Does anybody know the real differences and how to achieve a manual mounting later by script the best way?
mount ubuntu-18.04 zfsonlinux
asked 10 hours ago
MelBourbonMelBourbon
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MelBourbon is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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add a comment |
I want to create a zpool with ZFS on Linux (7.13) on Ubuntu 18.04. The problem is that the pool will be created based on LUKS encrypted drives (not root, only external). These drives are decrypted and loaded during boot by a script which i created since they are pulling a key file from an external source.
To avoid any issues with timing where the system wants to mount the zpool before the drives are decrypted and loaded I would like to mount the pool also manually as part of the script.
Now I ask myself which option I should choose for the mountpoint at creating the pool: none or legacy
The man page does not really help what the real difference is:
If a file system's mount point is set to legacy ZFS makes no attempt to manage the file system, and the administrator is responsible for mounting and unmounting the file system. Because pools must be imported before a legacy mount can succeed, administrators should ensure that legacy mounts are only attempted after the zpool import process finishes at boot time. For example, on machines using systemd, the mount option
Does anybody know the real differences and how to achieve a manual mounting later by script the best way?
mount ubuntu-18.04 zfsonlinux
asked 10 hours ago
MelBourbonMelBourbon
161 bronze badge
New contributor
MelBourbon is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
I want to create a zpool with ZFS on Linux (7.13) on Ubuntu 18.04. The problem is that the pool will be created based on LUKS encrypted drives (not root, only external). These drives are decrypted and loaded during boot by a script which i created since they are pulling a key file from an external source.
To avoid any issues with timing where the system wants to mount the zpool before the drives are decrypted and loaded I would like to mount the pool also manually as part of the script.
Now I ask myself which option I should choose for the mountpoint at creating the pool: none or legacy
The man page does not really help what the real difference is:
If a file system's mount point is set to legacy ZFS makes no attempt to manage the file system, and the administrator is responsible for mounting and unmounting the file system. Because pools must be imported before a legacy mount can succeed, administrators should ensure that legacy mounts are only attempted after the zpool import process finishes at boot time. For example, on machines using systemd, the mount option
Does anybody know the real differences and how to achieve a manual mounting later by script the best way?
mount ubuntu-18.04 zfsonlinux
asked 10 hours ago
MelBourbonMelBourbon
161 bronze badge
New contributor
MelBourbon 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 create a zpool with ZFS on Linux (7.13) on Ubuntu 18.04. The problem is that the pool will be created based on LUKS encrypted drives (not root, only external). These drives are decrypted and loaded during boot by a script which i created since they are pulling a key file from an external source.
To avoid any issues with timing where the system wants to mount the zpool before the drives are decrypted and loaded I would like to mount the pool also manually as part of the script.
Now I ask myself which option I should choose for the mountpoint at creating the pool: none or legacy
The man page does not really help what the real difference is:
If a file system's mount point is set to legacy ZFS makes no attempt to manage the file system, and the administrator is responsible for mounting and unmounting the file system. Because pools must be imported before a legacy mount can succeed, administrators should ensure that legacy mounts are only attempted after the zpool import process finishes at boot time. For example, on machines using systemd, the mount option
Does anybody know the real differences and how to achieve a manual mounting later by script the best way?
mount ubuntu-18.04 zfsonlinux
mount ubuntu-18.04 zfsonlinux
asked 10 hours ago
MelBourbonMelBourbon
161 bronze badge
New contributor
MelBourbon is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 10 hours ago
MelBourbonMelBourbon
161 bronze badge
New contributor
MelBourbon is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 10 hours ago
MelBourbonMelBourbon
161 bronze badge
New contributor
MelBourbon is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 10 hours ago
MelBourbonMelBourbon
161 bronze badge
asked 10 hours ago
MelBourbonMelBourbon
161 bronze badge
161 bronze badge
New contributor
MelBourbon is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
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add a comment |
add a comment |
2 Answers
2
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votes
I use zfs on luks with portable drive. I have never had problems with the standard mount points. Mounting doesn’t happen until after the pool is imported, and that won’t happen until after the luks volume is unlocked. So I think you may be over thinking this.
Anyway, if you really want to, go with legacy for manual mounting.
answered 9 hours ago
ZoredacheZoredache
113k31 gold badges234 silver badges382 bronze badges
Mh, I tried, but nowzpool statusgivesno pools availableafter reboot and syslog showscannot import 'pool01': no such pool or dataset
– MelBourbon
6 hours ago
So it's like I expected. At the time ZFS is importing the pools at system boot the LUKS drive is not ready and syslog is showing a error message. I need to manually import the pool withzpool import poolnamea little bit after decrypting and loading of the drives to get it working.
– MelBourbon
5 hours ago
Not sure what to tell use. I have been using zfs on luks for external drives for archives for a while. I even have my notes handy with tall the commands I use mounting, closing, formatting/etc. It all pretty much 'just works'. Notes: gist.github.com/zoredache/31958af23baa090ac662546047b9db08
– Zoredache
3 hours ago
add a comment |
I've been using ZFS pools on LUKS encrypted volumes for the better part of a decade. It works fine.
There is no reason to mount the pool manually to attempt to defeat nonexistent timing problems. Just create your pool normally and enjoy.
To avoid any problems in the future, when creating and managing the pool, use the names beginning with luks- in the /dev/mapper directory to refer to the devices. For example, the devices:
lrwxrwxrwx. 1 root root 10 Jul 26 22:22 luks-ata-WDC_WD2000FYYZ-01UL1B1_WD-WCC1P1046856 -> ../../dm-5
lrwxrwxrwx. 1 root root 10 Jul 26 22:22 luks-ata-WDC_WD2000FYYZ-01UL1B1_WD-WCC1P1145175 -> ../../dm-4
lrwxrwxrwx. 1 root root 10 Jul 26 22:22 luks-ata-WDC_WD2000FYYZ-01UL1B1_WD-WCC1P1165144 -> ../../dm-2
lrwxrwxrwx. 1 root root 10 Jul 26 22:22 luks-ata-WDC_WD2000FYYZ-01UL1B1_WD-WMC1P0DHH53R -> ../../dm-3
correspond to:
pool: srv
state: ONLINE
scan: scrub repaired 0B in 0h42m with 0 errors on Tue Jul 30 14:42:04 2019
config:
NAME STATE READ WRITE CKSUM
srv ONLINE 0 0 0
mirror-0 ONLINE 0 0 0
luks-ata-WDC_WD2000FYYZ-01UL1B1_WD-WCC1P1046856 ONLINE 0 0 0
luks-ata-WDC_WD2000FYYZ-01UL1B1_WD-WCC1P1145175 ONLINE 0 0 0
mirror-1 ONLINE 0 0 0
luks-ata-WDC_WD2000FYYZ-01UL1B1_WD-WCC1P1165144 ONLINE 0 0 0
luks-ata-WDC_WD2000FYYZ-01UL1B1_WD-WMC1P0DHH53R ONLINE 0 0 0
This pool is created with:
zpool create -o ashift=12 srv
mirror
luks-ata-WDC_WD2000FYYZ-01UL1B1_WD-WCC1P1046856
luks-ata-WDC_WD2000FYYZ-01UL1B1_WD-WCC1P1145175
mirror
luks-ata-WDC_WD2000FYYZ-01UL1B1_WD-WCC1P1165144
luks-ata-WDC_WD2000FYYZ-01UL1B1_WD-WMC1P0DHH53R
answered 5 hours ago
Michael Hampton♦Michael Hampton
183k29 gold badges343 silver badges675 bronze badges
But my LUKS encrypted volumes will be decrypted by a manual script with a delay and not by the normal system boot sequence. Does your use case also cover this. Because so far it does not work for me.
– MelBourbon
5 hours ago
1
@MelBourbon In that case you shouldzpool importthe pool in your manual script also.
– Michael Hampton♦
5 hours ago
Thanks, yes this was helping. The only issue I know face is that there is a short delay between the luks decrypting and the time wherezpool importworks. If I do it directly afterwards the system tells me that the pool is not existing. I need now to figure out how much delay.
– MelBourbon
5 hours ago
@MelBourbon That's very strange. I have never seen such a delay. Exactly what is your script doing?
– Michael Hampton♦
4 hours ago
1
@MelBourbon Very strange, you shouldn't need any delay there. As soon as cryptsetup returns, the device should be ready to use. Your Ubuntu system might have something else wrong.
– Michael Hampton♦
3 hours ago
|
show 3 more comments
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2 Answers
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active
oldest
votes
2 Answers
2
active
oldest
votes
active
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votes
active
oldest
votes
I use zfs on luks with portable drive. I have never had problems with the standard mount points. Mounting doesn’t happen until after the pool is imported, and that won’t happen until after the luks volume is unlocked. So I think you may be over thinking this.
Anyway, if you really want to, go with legacy for manual mounting.
answered 9 hours ago
ZoredacheZoredache
113k31 gold badges234 silver badges382 bronze badges
Mh, I tried, but nowzpool statusgivesno pools availableafter reboot and syslog showscannot import 'pool01': no such pool or dataset
– MelBourbon
6 hours ago
So it's like I expected. At the time ZFS is importing the pools at system boot the LUKS drive is not ready and syslog is showing a error message. I need to manually import the pool withzpool import poolnamea little bit after decrypting and loading of the drives to get it working.
– MelBourbon
5 hours ago
Not sure what to tell use. I have been using zfs on luks for external drives for archives for a while. I even have my notes handy with tall the commands I use mounting, closing, formatting/etc. It all pretty much 'just works'. Notes: gist.github.com/zoredache/31958af23baa090ac662546047b9db08
– Zoredache
3 hours ago
add a comment |
I use zfs on luks with portable drive. I have never had problems with the standard mount points. Mounting doesn’t happen until after the pool is imported, and that won’t happen until after the luks volume is unlocked. So I think you may be over thinking this.
Anyway, if you really want to, go with legacy for manual mounting.
answered 9 hours ago
ZoredacheZoredache
113k31 gold badges234 silver badges382 bronze badges
Mh, I tried, but nowzpool statusgivesno pools availableafter reboot and syslog showscannot import 'pool01': no such pool or dataset
– MelBourbon
6 hours ago
So it's like I expected. At the time ZFS is importing the pools at system boot the LUKS drive is not ready and syslog is showing a error message. I need to manually import the pool withzpool import poolnamea little bit after decrypting and loading of the drives to get it working.
– MelBourbon
5 hours ago
Not sure what to tell use. I have been using zfs on luks for external drives for archives for a while. I even have my notes handy with tall the commands I use mounting, closing, formatting/etc. It all pretty much 'just works'. Notes: gist.github.com/zoredache/31958af23baa090ac662546047b9db08
– Zoredache
3 hours ago
add a comment |
I use zfs on luks with portable drive. I have never had problems with the standard mount points. Mounting doesn’t happen until after the pool is imported, and that won’t happen until after the luks volume is unlocked. So I think you may be over thinking this.
Anyway, if you really want to, go with legacy for manual mounting.
answered 9 hours ago
ZoredacheZoredache
113k31 gold badges234 silver badges382 bronze badges
I use zfs on luks with portable drive. I have never had problems with the standard mount points. Mounting doesn’t happen until after the pool is imported, and that won’t happen until after the luks volume is unlocked. So I think you may be over thinking this.
Anyway, if you really want to, go with legacy for manual mounting.
answered 9 hours ago
ZoredacheZoredache
113k31 gold badges234 silver badges382 bronze badges
answered 9 hours ago
ZoredacheZoredache
113k31 gold badges234 silver badges382 bronze badges
answered 9 hours ago
ZoredacheZoredache
113k31 gold badges234 silver badges382 bronze badges
answered 9 hours ago
ZoredacheZoredache
113k31 gold badges234 silver badges382 bronze badges
113k31 gold badges234 silver badges382 bronze badges
Mh, I tried, but nowzpool statusgivesno pools availableafter reboot and syslog showscannot import 'pool01': no such pool or dataset
– MelBourbon
6 hours ago
So it's like I expected. At the time ZFS is importing the pools at system boot the LUKS drive is not ready and syslog is showing a error message. I need to manually import the pool withzpool import poolnamea little bit after decrypting and loading of the drives to get it working.
– MelBourbon
5 hours ago
Not sure what to tell use. I have been using zfs on luks for external drives for archives for a while. I even have my notes handy with tall the commands I use mounting, closing, formatting/etc. It all pretty much 'just works'. Notes: gist.github.com/zoredache/31958af23baa090ac662546047b9db08
– Zoredache
3 hours ago
add a comment |
Mh, I tried, but nowzpool statusgivesno pools availableafter reboot and syslog showscannot import 'pool01': no such pool or dataset
– MelBourbon
6 hours ago
So it's like I expected. At the time ZFS is importing the pools at system boot the LUKS drive is not ready and syslog is showing a error message. I need to manually import the pool withzpool import poolnamea little bit after decrypting and loading of the drives to get it working.
– MelBourbon
5 hours ago
Not sure what to tell use. I have been using zfs on luks for external drives for archives for a while. I even have my notes handy with tall the commands I use mounting, closing, formatting/etc. It all pretty much 'just works'. Notes: gist.github.com/zoredache/31958af23baa090ac662546047b9db08
– Zoredache
3 hours ago
Mh, I tried, but now
zpool status gives no pools available after reboot and syslog shows cannot import 'pool01': no such pool or dataset– MelBourbon
6 hours ago
Mh, I tried, but now
zpool status gives no pools available after reboot and syslog shows cannot import 'pool01': no such pool or dataset– MelBourbon
6 hours ago
So it's like I expected. At the time ZFS is importing the pools at system boot the LUKS drive is not ready and syslog is showing a error message. I need to manually import the pool with
zpool import poolname a little bit after decrypting and loading of the drives to get it working.– MelBourbon
5 hours ago
So it's like I expected. At the time ZFS is importing the pools at system boot the LUKS drive is not ready and syslog is showing a error message. I need to manually import the pool with
zpool import poolname a little bit after decrypting and loading of the drives to get it working.– MelBourbon
5 hours ago
Not sure what to tell use. I have been using zfs on luks for external drives for archives for a while. I even have my notes handy with tall the commands I use mounting, closing, formatting/etc. It all pretty much 'just works'. Notes: gist.github.com/zoredache/31958af23baa090ac662546047b9db08
– Zoredache
3 hours ago
Not sure what to tell use. I have been using zfs on luks for external drives for archives for a while. I even have my notes handy with tall the commands I use mounting, closing, formatting/etc. It all pretty much 'just works'. Notes: gist.github.com/zoredache/31958af23baa090ac662546047b9db08
– Zoredache
3 hours ago
add a comment |
I've been using ZFS pools on LUKS encrypted volumes for the better part of a decade. It works fine.
There is no reason to mount the pool manually to attempt to defeat nonexistent timing problems. Just create your pool normally and enjoy.
To avoid any problems in the future, when creating and managing the pool, use the names beginning with luks- in the /dev/mapper directory to refer to the devices. For example, the devices:
lrwxrwxrwx. 1 root root 10 Jul 26 22:22 luks-ata-WDC_WD2000FYYZ-01UL1B1_WD-WCC1P1046856 -> ../../dm-5
lrwxrwxrwx. 1 root root 10 Jul 26 22:22 luks-ata-WDC_WD2000FYYZ-01UL1B1_WD-WCC1P1145175 -> ../../dm-4
lrwxrwxrwx. 1 root root 10 Jul 26 22:22 luks-ata-WDC_WD2000FYYZ-01UL1B1_WD-WCC1P1165144 -> ../../dm-2
lrwxrwxrwx. 1 root root 10 Jul 26 22:22 luks-ata-WDC_WD2000FYYZ-01UL1B1_WD-WMC1P0DHH53R -> ../../dm-3
correspond to:
pool: srv
state: ONLINE
scan: scrub repaired 0B in 0h42m with 0 errors on Tue Jul 30 14:42:04 2019
config:
NAME STATE READ WRITE CKSUM
srv ONLINE 0 0 0
mirror-0 ONLINE 0 0 0
luks-ata-WDC_WD2000FYYZ-01UL1B1_WD-WCC1P1046856 ONLINE 0 0 0
luks-ata-WDC_WD2000FYYZ-01UL1B1_WD-WCC1P1145175 ONLINE 0 0 0
mirror-1 ONLINE 0 0 0
luks-ata-WDC_WD2000FYYZ-01UL1B1_WD-WCC1P1165144 ONLINE 0 0 0
luks-ata-WDC_WD2000FYYZ-01UL1B1_WD-WMC1P0DHH53R ONLINE 0 0 0
This pool is created with:
zpool create -o ashift=12 srv
mirror
luks-ata-WDC_WD2000FYYZ-01UL1B1_WD-WCC1P1046856
luks-ata-WDC_WD2000FYYZ-01UL1B1_WD-WCC1P1145175
mirror
luks-ata-WDC_WD2000FYYZ-01UL1B1_WD-WCC1P1165144
luks-ata-WDC_WD2000FYYZ-01UL1B1_WD-WMC1P0DHH53R
answered 5 hours ago
Michael Hampton♦Michael Hampton
183k29 gold badges343 silver badges675 bronze badges
But my LUKS encrypted volumes will be decrypted by a manual script with a delay and not by the normal system boot sequence. Does your use case also cover this. Because so far it does not work for me.
– MelBourbon
5 hours ago
1
@MelBourbon In that case you shouldzpool importthe pool in your manual script also.
– Michael Hampton♦
5 hours ago
Thanks, yes this was helping. The only issue I know face is that there is a short delay between the luks decrypting and the time wherezpool importworks. If I do it directly afterwards the system tells me that the pool is not existing. I need now to figure out how much delay.
– MelBourbon
5 hours ago
@MelBourbon That's very strange. I have never seen such a delay. Exactly what is your script doing?
– Michael Hampton♦
4 hours ago
1
@MelBourbon Very strange, you shouldn't need any delay there. As soon as cryptsetup returns, the device should be ready to use. Your Ubuntu system might have something else wrong.
– Michael Hampton♦
3 hours ago
|
show 3 more comments
I've been using ZFS pools on LUKS encrypted volumes for the better part of a decade. It works fine.
There is no reason to mount the pool manually to attempt to defeat nonexistent timing problems. Just create your pool normally and enjoy.
To avoid any problems in the future, when creating and managing the pool, use the names beginning with luks- in the /dev/mapper directory to refer to the devices. For example, the devices:
lrwxrwxrwx. 1 root root 10 Jul 26 22:22 luks-ata-WDC_WD2000FYYZ-01UL1B1_WD-WCC1P1046856 -> ../../dm-5
lrwxrwxrwx. 1 root root 10 Jul 26 22:22 luks-ata-WDC_WD2000FYYZ-01UL1B1_WD-WCC1P1145175 -> ../../dm-4
lrwxrwxrwx. 1 root root 10 Jul 26 22:22 luks-ata-WDC_WD2000FYYZ-01UL1B1_WD-WCC1P1165144 -> ../../dm-2
lrwxrwxrwx. 1 root root 10 Jul 26 22:22 luks-ata-WDC_WD2000FYYZ-01UL1B1_WD-WMC1P0DHH53R -> ../../dm-3
correspond to:
pool: srv
state: ONLINE
scan: scrub repaired 0B in 0h42m with 0 errors on Tue Jul 30 14:42:04 2019
config:
NAME STATE READ WRITE CKSUM
srv ONLINE 0 0 0
mirror-0 ONLINE 0 0 0
luks-ata-WDC_WD2000FYYZ-01UL1B1_WD-WCC1P1046856 ONLINE 0 0 0
luks-ata-WDC_WD2000FYYZ-01UL1B1_WD-WCC1P1145175 ONLINE 0 0 0
mirror-1 ONLINE 0 0 0
luks-ata-WDC_WD2000FYYZ-01UL1B1_WD-WCC1P1165144 ONLINE 0 0 0
luks-ata-WDC_WD2000FYYZ-01UL1B1_WD-WMC1P0DHH53R ONLINE 0 0 0
This pool is created with:
zpool create -o ashift=12 srv
mirror
luks-ata-WDC_WD2000FYYZ-01UL1B1_WD-WCC1P1046856
luks-ata-WDC_WD2000FYYZ-01UL1B1_WD-WCC1P1145175
mirror
luks-ata-WDC_WD2000FYYZ-01UL1B1_WD-WCC1P1165144
luks-ata-WDC_WD2000FYYZ-01UL1B1_WD-WMC1P0DHH53R
answered 5 hours ago
Michael Hampton♦Michael Hampton
183k29 gold badges343 silver badges675 bronze badges
But my LUKS encrypted volumes will be decrypted by a manual script with a delay and not by the normal system boot sequence. Does your use case also cover this. Because so far it does not work for me.
– MelBourbon
5 hours ago
1
@MelBourbon In that case you shouldzpool importthe pool in your manual script also.
– Michael Hampton♦
5 hours ago
Thanks, yes this was helping. The only issue I know face is that there is a short delay between the luks decrypting and the time wherezpool importworks. If I do it directly afterwards the system tells me that the pool is not existing. I need now to figure out how much delay.
– MelBourbon
5 hours ago
@MelBourbon That's very strange. I have never seen such a delay. Exactly what is your script doing?
– Michael Hampton♦
4 hours ago
1
@MelBourbon Very strange, you shouldn't need any delay there. As soon as cryptsetup returns, the device should be ready to use. Your Ubuntu system might have something else wrong.
– Michael Hampton♦
3 hours ago
|
show 3 more comments
I've been using ZFS pools on LUKS encrypted volumes for the better part of a decade. It works fine.
There is no reason to mount the pool manually to attempt to defeat nonexistent timing problems. Just create your pool normally and enjoy.
To avoid any problems in the future, when creating and managing the pool, use the names beginning with luks- in the /dev/mapper directory to refer to the devices. For example, the devices:
lrwxrwxrwx. 1 root root 10 Jul 26 22:22 luks-ata-WDC_WD2000FYYZ-01UL1B1_WD-WCC1P1046856 -> ../../dm-5
lrwxrwxrwx. 1 root root 10 Jul 26 22:22 luks-ata-WDC_WD2000FYYZ-01UL1B1_WD-WCC1P1145175 -> ../../dm-4
lrwxrwxrwx. 1 root root 10 Jul 26 22:22 luks-ata-WDC_WD2000FYYZ-01UL1B1_WD-WCC1P1165144 -> ../../dm-2
lrwxrwxrwx. 1 root root 10 Jul 26 22:22 luks-ata-WDC_WD2000FYYZ-01UL1B1_WD-WMC1P0DHH53R -> ../../dm-3
correspond to:
pool: srv
state: ONLINE
scan: scrub repaired 0B in 0h42m with 0 errors on Tue Jul 30 14:42:04 2019
config:
NAME STATE READ WRITE CKSUM
srv ONLINE 0 0 0
mirror-0 ONLINE 0 0 0
luks-ata-WDC_WD2000FYYZ-01UL1B1_WD-WCC1P1046856 ONLINE 0 0 0
luks-ata-WDC_WD2000FYYZ-01UL1B1_WD-WCC1P1145175 ONLINE 0 0 0
mirror-1 ONLINE 0 0 0
luks-ata-WDC_WD2000FYYZ-01UL1B1_WD-WCC1P1165144 ONLINE 0 0 0
luks-ata-WDC_WD2000FYYZ-01UL1B1_WD-WMC1P0DHH53R ONLINE 0 0 0
This pool is created with:
zpool create -o ashift=12 srv
mirror
luks-ata-WDC_WD2000FYYZ-01UL1B1_WD-WCC1P1046856
luks-ata-WDC_WD2000FYYZ-01UL1B1_WD-WCC1P1145175
mirror
luks-ata-WDC_WD2000FYYZ-01UL1B1_WD-WCC1P1165144
luks-ata-WDC_WD2000FYYZ-01UL1B1_WD-WMC1P0DHH53R
answered 5 hours ago
Michael Hampton♦Michael Hampton
183k29 gold badges343 silver badges675 bronze badges
I've been using ZFS pools on LUKS encrypted volumes for the better part of a decade. It works fine.
There is no reason to mount the pool manually to attempt to defeat nonexistent timing problems. Just create your pool normally and enjoy.
To avoid any problems in the future, when creating and managing the pool, use the names beginning with luks- in the /dev/mapper directory to refer to the devices. For example, the devices:
lrwxrwxrwx. 1 root root 10 Jul 26 22:22 luks-ata-WDC_WD2000FYYZ-01UL1B1_WD-WCC1P1046856 -> ../../dm-5
lrwxrwxrwx. 1 root root 10 Jul 26 22:22 luks-ata-WDC_WD2000FYYZ-01UL1B1_WD-WCC1P1145175 -> ../../dm-4
lrwxrwxrwx. 1 root root 10 Jul 26 22:22 luks-ata-WDC_WD2000FYYZ-01UL1B1_WD-WCC1P1165144 -> ../../dm-2
lrwxrwxrwx. 1 root root 10 Jul 26 22:22 luks-ata-WDC_WD2000FYYZ-01UL1B1_WD-WMC1P0DHH53R -> ../../dm-3
correspond to:
pool: srv
state: ONLINE
scan: scrub repaired 0B in 0h42m with 0 errors on Tue Jul 30 14:42:04 2019
config:
NAME STATE READ WRITE CKSUM
srv ONLINE 0 0 0
mirror-0 ONLINE 0 0 0
luks-ata-WDC_WD2000FYYZ-01UL1B1_WD-WCC1P1046856 ONLINE 0 0 0
luks-ata-WDC_WD2000FYYZ-01UL1B1_WD-WCC1P1145175 ONLINE 0 0 0
mirror-1 ONLINE 0 0 0
luks-ata-WDC_WD2000FYYZ-01UL1B1_WD-WCC1P1165144 ONLINE 0 0 0
luks-ata-WDC_WD2000FYYZ-01UL1B1_WD-WMC1P0DHH53R ONLINE 0 0 0
This pool is created with:
zpool create -o ashift=12 srv
mirror
luks-ata-WDC_WD2000FYYZ-01UL1B1_WD-WCC1P1046856
luks-ata-WDC_WD2000FYYZ-01UL1B1_WD-WCC1P1145175
mirror
luks-ata-WDC_WD2000FYYZ-01UL1B1_WD-WCC1P1165144
luks-ata-WDC_WD2000FYYZ-01UL1B1_WD-WMC1P0DHH53R
answered 5 hours ago
Michael Hampton♦Michael Hampton
183k29 gold badges343 silver badges675 bronze badges
edited 5 hours ago
answered 5 hours ago
Michael Hampton♦Michael Hampton
183k29 gold badges343 silver badges675 bronze badges
answered 5 hours ago
Michael Hampton♦Michael Hampton
183k29 gold badges343 silver badges675 bronze badges
answered 5 hours ago
Michael Hampton♦Michael Hampton
183k29 gold badges343 silver badges675 bronze badges
183k29 gold badges343 silver badges675 bronze badges
But my LUKS encrypted volumes will be decrypted by a manual script with a delay and not by the normal system boot sequence. Does your use case also cover this. Because so far it does not work for me.
– MelBourbon
5 hours ago
1
@MelBourbon In that case you shouldzpool importthe pool in your manual script also.
– Michael Hampton♦
5 hours ago
Thanks, yes this was helping. The only issue I know face is that there is a short delay between the luks decrypting and the time wherezpool importworks. If I do it directly afterwards the system tells me that the pool is not existing. I need now to figure out how much delay.
– MelBourbon
5 hours ago
@MelBourbon That's very strange. I have never seen such a delay. Exactly what is your script doing?
– Michael Hampton♦
4 hours ago
1
@MelBourbon Very strange, you shouldn't need any delay there. As soon as cryptsetup returns, the device should be ready to use. Your Ubuntu system might have something else wrong.
– Michael Hampton♦
3 hours ago
|
show 3 more comments
But my LUKS encrypted volumes will be decrypted by a manual script with a delay and not by the normal system boot sequence. Does your use case also cover this. Because so far it does not work for me.
– MelBourbon
5 hours ago
1
@MelBourbon In that case you shouldzpool importthe pool in your manual script also.
– Michael Hampton♦
5 hours ago
Thanks, yes this was helping. The only issue I know face is that there is a short delay between the luks decrypting and the time wherezpool importworks. If I do it directly afterwards the system tells me that the pool is not existing. I need now to figure out how much delay.
– MelBourbon
5 hours ago
@MelBourbon That's very strange. I have never seen such a delay. Exactly what is your script doing?
– Michael Hampton♦
4 hours ago
1
@MelBourbon Very strange, you shouldn't need any delay there. As soon as cryptsetup returns, the device should be ready to use. Your Ubuntu system might have something else wrong.
– Michael Hampton♦
3 hours ago
But my LUKS encrypted volumes will be decrypted by a manual script with a delay and not by the normal system boot sequence. Does your use case also cover this. Because so far it does not work for me.
– MelBourbon
5 hours ago
But my LUKS encrypted volumes will be decrypted by a manual script with a delay and not by the normal system boot sequence. Does your use case also cover this. Because so far it does not work for me.
– MelBourbon
5 hours ago
1
1
@MelBourbon In that case you should
zpool import the pool in your manual script also.– Michael Hampton♦
5 hours ago
@MelBourbon In that case you should
zpool import the pool in your manual script also.– Michael Hampton♦
5 hours ago
Thanks, yes this was helping. The only issue I know face is that there is a short delay between the luks decrypting and the time where
zpool import works. If I do it directly afterwards the system tells me that the pool is not existing. I need now to figure out how much delay.– MelBourbon
5 hours ago
Thanks, yes this was helping. The only issue I know face is that there is a short delay between the luks decrypting and the time where
zpool import works. If I do it directly afterwards the system tells me that the pool is not existing. I need now to figure out how much delay.– MelBourbon
5 hours ago
@MelBourbon That's very strange. I have never seen such a delay. Exactly what is your script doing?
– Michael Hampton♦
4 hours ago
@MelBourbon That's very strange. I have never seen such a delay. Exactly what is your script doing?
– Michael Hampton♦
4 hours ago
1
1
@MelBourbon Very strange, you shouldn't need any delay there. As soon as cryptsetup returns, the device should be ready to use. Your Ubuntu system might have something else wrong.
– Michael Hampton♦
3 hours ago
@MelBourbon Very strange, you shouldn't need any delay there. As soon as cryptsetup returns, the device should be ready to use. Your Ubuntu system might have something else wrong.
– Michael Hampton♦
3 hours ago
|
show 3 more comments
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MelBourbon is a new contributor. Be nice, and check out our Code of Conduct.
MelBourbon is a new contributor. Be nice, and check out our Code of Conduct.
MelBourbon is a new contributor. Be nice, and check out our Code of Conduct.
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