Problem EL7 (CentOS RHEL) to a Native ZFS Root Filesystem

[fernando-garcia-torre]

I have a problem after trying to install the system.
System:
3.10.0-957.5.1.el7.x86_64
CentOS Linux release 7.6.1810 (Core)

software:
kmod-spl.x86_64 0.7.13-1.el7_6 @zfs-kmod
kmod-zfs.x86_64 0.7.13-1.el7_6 @zfs-kmod
libnvpair1.x86_64 0.7.13-1.el7_6 @zfs-kmod
libuutil1.x86_64 0.7.13-1.el7_6 @zfs-kmod
libzfs2.x86_64 0.7.13-1.el7_6 @zfs-kmod
libzpool2.x86_64 0.7.13-1.el7_6 @zfs-kmod
spl.x86_64 0.7.13-1.el7_6 @zfs-kmod
zfs.x86_64 0.7.13-1.el7_6 @zfs-kmod
zfs-dracut.x86_64 0.7.13-1.el7_6 @zfs-kmod
zfs-release.noarch 1-6.el7 installed

When i restart i have this message: "unaligned pointer 0xf000ff53"
before reaching the menú of grub

[fernando-garcia-torre]

this is my menuentry:

menuentry 'CentOS Linux (3.10.0-957.5.1.el7.x86_64) 7 (Core)' --class centos --class gnu-linux --class gnu --class o$
load_video
set gfxpayload=keep
insmod gzio
insmod part_gpt
insmod zfs
set root='hd1,gpt1'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd1,gpt1 --hint-efi=hd1,gpt1 --hint-baremetal=ahci1,gp$
else
search --no-floppy --fs-uuid --set=root (null)
fi
linux16 /ROOT@/boot/vmlinuz-3.10.0-957.5.1.el7.x86_64 root=ZFS=(null)/ROOT ro crashkernel=auto rd.lvm.lv=cen$
initrd16 /ROOT@/boot/initramfs-3.10.0-957.5.1.el7.x86_64.img

[gordan-bobic]

This part looks broken:

root=ZFS=(null)/ROOT

[cf-sewe]

I did following workaround: /etc/grub.d/10_linux change the rpool= line 63 and hardcode the poolname of your root pool

Was not able to find a proper solution anywhere...

[Ryushin]

grub_10_linux.patch.txt

I attached my 10_linux patch that I used for Debian/Devuan. It relies on the bootfs parameter in your root pool.