I confirm, still there in 20.04
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Title:
Unable to mount lvmcache root device at boot time
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Still a problem in 20.04...
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Title:
Unable to mount lvmcache root device at boot time
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yah I have actually never seen a bug fixed on the Ubuntu bug tracker, just deal
with it upstream or use a different distribution.
IMO Ubuntu should delete bugs.launchpad.net and just merge pull requests on
github/etc.
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This is still broken in Ubuntu 18.04.
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Title:
Unable to mount lvmcache root device at boot time
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** Tags added: cscc
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Title:
Unable to mount lvmcache root device at boot time
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Related to debian bug #773731
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Title:
Unable to mount lvmcache root device at boot time
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I just ran into this with a cleanly installed 17.04. Figured it out
myself, added "copy_exec /usr/sbin/cache_check" to /usr/share/initramfs-
tools/hooks/lvm2 in order to fix it.
Can we PLEASE get this bug -- which renders systems UNBOOTABLE after
attaching a cache -- fixed, especially since there
Same bug in 17.04: configure lvmcache and reboot - system can't map cached
device to /dev/mapper/
Fixed by update initramfs with hook in upper comment:
https://bugs.launchpad.net/ubuntu/+source/lvm2/+bug/1423796/comments/12
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@George:
George Moutsopoulos (gmoutso) wrote on 2015-04-29:
> OK, I managed! I had to add more modules
>
> sudo echo "dm_cache" >> /etc/initramfs-tools/modules
> sudo echo "dm_cache_mq" >> /etc/initramfs-tools/modules
> sudo echo "dm_persistent_data" >> /etc/initramfs-tools/modules
> sudo echo
That new file could be added to the thin-provisioning-tools which would
trigger an initramfs update.
I forgot to remove cache_dump, cache_restore and cache_metadata_size
which are not needed to boot.
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After making my system work again, which took a while since most live
media and even the installer don't support LVM cache, I had it working
for writeback on my system with the following.
/etc/initramfs-tools/hooks/lvm2_cache
{{{
#!/bin/sh
PREREQ="lvm2"
prereqs()
{
echo "$PREREQ"
}
case $1
Correction, I was able to get gmoutso's solution to work. I realized
that I needed to create a separate boot partition that didn't use lvm
caching. In retrospect, this makes a lot of sense.
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** Changed in: linux (Ubuntu)
Milestone: ubuntu-16.02 => ubuntu-16.03
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Title:
Unable to mount lvmcache root device at boot time
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I'm running Ubuntu 15.10 and I was unable to get gmoutso's solution
working.
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Title:
Unable to mount lvmcache root device at boot time
To
** Changed in: linux (Ubuntu)
Milestone: ubuntu-16.01 => ubuntu-16.02
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Title:
Unable to mount lvmcache root device at boot time
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** Changed in: linux (Ubuntu)
Milestone: ubuntu-15.12 => ubuntu-16.01
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Title:
Unable to mount lvmcache root device at boot time
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** Changed in: linux (Ubuntu)
Milestone: ubuntu-15.11 => ubuntu-15.12
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Title:
Unable to mount lvmcache root device at boot time
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** Changed in: linux (Ubuntu)
Milestone: ubuntu-15.10 => ubuntu-15.11
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Title:
Unable to mount lvmcache root device at boot time
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Is this corrected in the 15.10 ?
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Title:
Unable to mount lvmcache root device at boot time
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** Changed in: linux (Ubuntu)
Milestone: ubuntu-15.09 => ubuntu-15.10
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Title:
Unable to mount lvmcache root device at boot time
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** Changed in: linux (Ubuntu)
Milestone: ubuntu-15.08 => ubuntu-15.09
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Title:
Unable to mount lvmcache root device at boot time
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** Changed in: linux (Ubuntu)
Milestone: ubuntu-15.07 = ubuntu-15.08
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Title:
Unable to mount lvmcache root device at boot time
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** Changed in: linux (Ubuntu)
Milestone: ubuntu-15.03 = ubuntu-15.07
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Title:
Unable to mount lvmcache root device at boot time
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I have the same problem with Ubuntu 15.04
The solution of gmoutso worked thanks !
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Title:
Unable to mount lvmcache root device at boot time
To
Thank you George! Your contribution was the final thing I needed to get
this to work :
http://askubuntu.com/questions/620480/how-to-install-ubuntu-with-both-
disk-encryption-and-ssd-caching
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OK, I managed! I had to add more modules
sudo echo dm_cache /etc/initramfs-tools/modules
sudo echo dm_cache_mq /etc/initramfs-tools/modules
sudo echo dm_persistent_data /etc/initramfs-tools/modules
sudo echo dm_bufio /etc/initramfs-tools/modules
plus, add cache_check as in
MegaBrutal, can you give some instructions. I followed the instructions at
http://forums.debian.net/viewtopic.php?f=5t=119644
but still couldn't boot
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I also tried the instructions in
http://forums.debian.net/viewtopic.php?f=5t=119644
but still cannot reboot into cached hdd system
removing the cache (lvremove lvcache) every time I fail to boot, by
using a rescue usb, gave me some corruption and was just inconvenient to
further experiment. so I
** Also affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Also affects: initramfs-tools (Ubuntu)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu)
Status: New = Confirmed
** Changed in: initramfs-tools (Ubuntu)
Status: New = Confirmed
Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: lvm2 (Ubuntu)
Status: New = Confirmed
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Title:
** Package changed: linux (Ubuntu) = lvm2 (Ubuntu)
** Changed in: lvm2 (Ubuntu)
Status: Incomplete = New
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Title:
Unable to mount
** Description changed:
- I'm experiencing with Vivid Vervet on a virtual machine and tried a new
+ I'm experimenting with Vivid Vervet on a virtual machine and tried a new
LVM feature, lvmcache. I made a cache for the root file system, rebuilt
the initrd and rebooted the VM.
At boot
** Tags added: vivid
** Description changed:
I'm experiencing with Vivid Vervet on a virtual machine and tried a new
LVM feature, lvmcache. I made a cache for the root file system, rebuilt
the initrd and rebooted the VM.
At boot time, the system failed to activate the root LV. After
This is an lvm2 bug and I wanted to report it to lvm2, not Linux. I
remember that I exactly typed lvm2, I don't know why it was still
reported to linux. Could someone help me to sort it out?
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