zfs uefi trouble

full-zfs-ecrypt-uefi-boot-trouble.md

@@ -0,0 +1,122 @@
+## Fixing Debian/Ubuntu UEFI boot manager with Debian/Ubuntu Live
+
+source : [Code Bites](https://emmanuel-galindo.github.io/en/2017/04/05/fixing-debian-boot-uefi-grub/)  
+
+Steps summary:  
+
+- Boot Debian Live
+- Verify Debian Live was loaded with UEFI
+- Review devices location and current configuration
+- Mount broken system (via chroot)
+- Reinstall grub-efi
+- Verify configuration
+- Logout from chroot and reboot
+
+### Verify Debian Live was loaded with UEFI :  
+
+~~~
+$ dmesg | grep -i efi 
+~~~
+
+~~~
+$ ls -l /sys/firmware/efi | grep vars
+~~~
+
+### Mount broken system (via chroot)
+
+Mounting another system via chroot is the usual procedure to recover broken system’s. Once the chroot comand is issues, Debian Live will treat the broken system’s “/” (root) as its own. Commands run in a chroot environment will affect the broken systems filesystems and not those of the Debian Live.  
+
+#### My system is full ZFS
+
+You have to add *-f* to force import because zfs think he should be on an other system.  
+*-R* is to use an altroot path.  
+
+~~~
+zpool import -f -R /mnt rpool
+~~~
+
+~~~
+zpool import bpool
+~~~
+
+Here system will tell you he can't mount it because /boot is in use. We don't wanted to mount it here, we will do it inside the chroot.  
+
+~~~
+zfs mount rpool/ROOT/ubuntu_myid
+~~~
+
+I'm in the case where ny zpool is encrypt !  
+
+see : [zfs trouble encrypt zpool](zfs-trouble-live-boot-solution)
+
+#### My system is not ZFS
+
+Mount root partition (for example an lvm)  
+
+~~~
+# mount /dev/volumegroup/logicalvolume /mnt
+~~~
+
+Mount boot partition (F.e. in drive sda)  
+
+~~~
+# mount /dev/sda2 /mnt/boot
+~~~
+
+Mount the EFI System Partition (usually in /dev/sda1)
+
+~~~
+# mount /dev/sda1 /mnt/boot/efi
+~~~
+
+### Prepare chroot env
+
+Mount the critical virtual filesystems with the following single command:
+
+~~~
+# for i in /dev /dev/pts /proc /sys /run; do sudo mount -B $i /mnt$i; done
+~~~
+   
+Mount all zfs file system on rpool.   
+   
+~~~
+# zfs mount -a
+~~~
+   
+Chroot to your normal (and broken) system device
+
+~~~
+# chroot /mnt
+~~~
+
+Then here mon bpool zfs vol.  
+
+~~~
+inside chroot # zfs mount -a
+~~~
+
+Mount your EFI partition:  
+
+~~~
+inside chroot # mount -a
+~~~
+
+You should see :  
+
+* all your rpool zfs vol.  
+* /boot from your bpool.  
+* Your efi partition.  
+
+### Reinstall grub-efi
+
+~~~
+# apt-get install --reinstall grub-efi
+~~~
+
+~~~
+# grub-install /dev/sda
+~~~
+
+~~~
+# update-grub
+~~~

zfs-trouble-live-boot-solution.md

@@ -1,16 +1,22 @@
-# zfs trouble live boot solution
-## zpool trouble you can mount it from live systeme
-
-boot on usb drive which permit zfs then :
-
-~~~
-zpool import -R /mnt rpool
-zfs load-key rpool
-zfs mount rpool/USERDATA/nomad_e8bdbt
-~~~
-
-## in case you wanted to change zpool passwd
-
-~~~{.shell}
-zfs change-key rpool
-~~~
+---
+format: markdown
+toc: no
+title: zfs trouble encrypt zpool
+...
+
+# zfs trouble live boot solution
+## zpool trouble you can mount it from live systeme
+
+boot on usb drive which permit zfs then :
+
+~~~
+zpool import -R /mnt rpool
+zfs load-key rpool
+zfs mount rpool/USERDATA/nomad_e8bdbt
+~~~
+
+## in case you wanted to change zpool passwd
+
+~~~{.shell}
+zfs change-key rpool
+~~~