How to setup lvm to cache /root on 18.04?
I have two drives and can use lvmcache to cache the hard drive with the SSD with 16.04. However, when I follow the same process with 18.04, I can create the lvmcache but when I reboot, I get the Grub2 screen and prompt.
How do I setup lvmcache to cache /root on 18.04?
grub2 18.04 ssd lvmcache
asked Jan 7 at 18:42
cabryancabryan
63
add a comment |
I have two drives and can use lvmcache to cache the hard drive with the SSD with 16.04. However, when I follow the same process with 18.04, I can create the lvmcache but when I reboot, I get the Grub2 screen and prompt.
How do I setup lvmcache to cache /root on 18.04?
grub2 18.04 ssd lvmcache
asked Jan 7 at 18:42
cabryancabryan
63
add a comment |
I have two drives and can use lvmcache to cache the hard drive with the SSD with 16.04. However, when I follow the same process with 18.04, I can create the lvmcache but when I reboot, I get the Grub2 screen and prompt.
How do I setup lvmcache to cache /root on 18.04?
grub2 18.04 ssd lvmcache
asked Jan 7 at 18:42
cabryancabryan
63
I have two drives and can use lvmcache to cache the hard drive with the SSD with 16.04. However, when I follow the same process with 18.04, I can create the lvmcache but when I reboot, I get the Grub2 screen and prompt.
How do I setup lvmcache to cache /root on 18.04?
grub2 18.04 ssd lvmcache
grub2 18.04 ssd lvmcache
asked Jan 7 at 18:42
cabryancabryan
63
asked Jan 7 at 18:42
cabryancabryan
63
edited Jan 8 at 18:02
cabryan
asked Jan 7 at 18:42
cabryancabryan
63
asked Jan 7 at 18:42
cabryancabryan
63
asked Jan 7 at 18:42
cabryancabryan
63
63
add a comment |
add a comment |
1 Answer
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Here is what worked for me:
- I used the alternate ISO to install so I could manually set partition the drives and set up LVM.
- On my hard drive, I created a partition for EFI and another partition formated to Ext4 mounted to /boot.
- I created my volume group and logical volumes for /root and /swap on the remaining space on my hard drive.
- I expanded my volume group to include my SSD, then set up logical volumes for the cache data and cache meta data.
- After completing the install & rebooting, I followed the steps from Jethro's blog (http://scyu.logdown.com/posts/519001-ubuntu-lvmcache-setup). I skipped directly to the lvconvert steps since the logical volumes had already been created on the SSD. I also removed "--cachepolicy mg".
- I also followed Johannes Bauer's advice adding "copy_exec /usr/sbin/cache_check" to /usr/share/initramfs-tools/hooks/lvm2 and making lvm2 executable.
- Then I updated initramfs (update-initramfs -u -k all) then updated (apt-get update) and upgraded (apt-get full-upgrade).
I may have done more that I needed to, but I've followed these steps to set up three machines running 18.04 with SSD caching through lvmcache.
answered Jan 16 at 20:05
cabryancabryan
63
add a comment |
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1 Answer
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active
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votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
Here is what worked for me:
- I used the alternate ISO to install so I could manually set partition the drives and set up LVM.
- On my hard drive, I created a partition for EFI and another partition formated to Ext4 mounted to /boot.
- I created my volume group and logical volumes for /root and /swap on the remaining space on my hard drive.
- I expanded my volume group to include my SSD, then set up logical volumes for the cache data and cache meta data.
- After completing the install & rebooting, I followed the steps from Jethro's blog (http://scyu.logdown.com/posts/519001-ubuntu-lvmcache-setup). I skipped directly to the lvconvert steps since the logical volumes had already been created on the SSD. I also removed "--cachepolicy mg".
- I also followed Johannes Bauer's advice adding "copy_exec /usr/sbin/cache_check" to /usr/share/initramfs-tools/hooks/lvm2 and making lvm2 executable.
- Then I updated initramfs (update-initramfs -u -k all) then updated (apt-get update) and upgraded (apt-get full-upgrade).
I may have done more that I needed to, but I've followed these steps to set up three machines running 18.04 with SSD caching through lvmcache.
answered Jan 16 at 20:05
cabryancabryan
63
add a comment |
Here is what worked for me:
- I used the alternate ISO to install so I could manually set partition the drives and set up LVM.
- On my hard drive, I created a partition for EFI and another partition formated to Ext4 mounted to /boot.
- I created my volume group and logical volumes for /root and /swap on the remaining space on my hard drive.
- I expanded my volume group to include my SSD, then set up logical volumes for the cache data and cache meta data.
- After completing the install & rebooting, I followed the steps from Jethro's blog (http://scyu.logdown.com/posts/519001-ubuntu-lvmcache-setup). I skipped directly to the lvconvert steps since the logical volumes had already been created on the SSD. I also removed "--cachepolicy mg".
- I also followed Johannes Bauer's advice adding "copy_exec /usr/sbin/cache_check" to /usr/share/initramfs-tools/hooks/lvm2 and making lvm2 executable.
- Then I updated initramfs (update-initramfs -u -k all) then updated (apt-get update) and upgraded (apt-get full-upgrade).
I may have done more that I needed to, but I've followed these steps to set up three machines running 18.04 with SSD caching through lvmcache.
answered Jan 16 at 20:05
cabryancabryan
63
add a comment |
Here is what worked for me:
- I used the alternate ISO to install so I could manually set partition the drives and set up LVM.
- On my hard drive, I created a partition for EFI and another partition formated to Ext4 mounted to /boot.
- I created my volume group and logical volumes for /root and /swap on the remaining space on my hard drive.
- I expanded my volume group to include my SSD, then set up logical volumes for the cache data and cache meta data.
- After completing the install & rebooting, I followed the steps from Jethro's blog (http://scyu.logdown.com/posts/519001-ubuntu-lvmcache-setup). I skipped directly to the lvconvert steps since the logical volumes had already been created on the SSD. I also removed "--cachepolicy mg".
- I also followed Johannes Bauer's advice adding "copy_exec /usr/sbin/cache_check" to /usr/share/initramfs-tools/hooks/lvm2 and making lvm2 executable.
- Then I updated initramfs (update-initramfs -u -k all) then updated (apt-get update) and upgraded (apt-get full-upgrade).
I may have done more that I needed to, but I've followed these steps to set up three machines running 18.04 with SSD caching through lvmcache.
answered Jan 16 at 20:05
cabryancabryan
63
Here is what worked for me:
- I used the alternate ISO to install so I could manually set partition the drives and set up LVM.
- On my hard drive, I created a partition for EFI and another partition formated to Ext4 mounted to /boot.
- I created my volume group and logical volumes for /root and /swap on the remaining space on my hard drive.
- I expanded my volume group to include my SSD, then set up logical volumes for the cache data and cache meta data.
- After completing the install & rebooting, I followed the steps from Jethro's blog (http://scyu.logdown.com/posts/519001-ubuntu-lvmcache-setup). I skipped directly to the lvconvert steps since the logical volumes had already been created on the SSD. I also removed "--cachepolicy mg".
- I also followed Johannes Bauer's advice adding "copy_exec /usr/sbin/cache_check" to /usr/share/initramfs-tools/hooks/lvm2 and making lvm2 executable.
- Then I updated initramfs (update-initramfs -u -k all) then updated (apt-get update) and upgraded (apt-get full-upgrade).
I may have done more that I needed to, but I've followed these steps to set up three machines running 18.04 with SSD caching through lvmcache.
answered Jan 16 at 20:05
cabryancabryan
63
answered Jan 16 at 20:05
cabryancabryan
63
answered Jan 16 at 20:05
cabryancabryan
63
answered Jan 16 at 20:05
cabryancabryan
63
63
add a comment |
add a comment |
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