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Box293
n00b
Joined: 12 May 2017
Posts: 9
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 Posted: Sun Oct 22, 2017 9:52 am Post subject: LVM Install - Trying to understand it to document it |
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I've a bit of a novice at Gentoo and after playing around with the handbook a few times I've wanted to get LVM added to the documentation.
I've almost got all the steps but I'm getting stuck, for some reason I need to do this twice:
| Code: | | genkernel --lvm --install initramfs |
I need to re-do it before I do this step:
| Code: | | emerge --ask --verbose sys-boot/grub:2 |
If I don't then:
| Code: | | grub-install /dev/sda |
and
| Code: | | grub-mkconfig -o /boot/grub/grub.cfg |
don't work, grub-mkconfig doesn't detect the linux image.
If I do the genkernel command the second time then everything works and it detect the linux image and gub boots successfully.
I've done a lot of test with VM's and snapshots, rolling back trying to pinpoint what is going on.
Here is the steps I've documented:
| Code: |
https://wiki.gentoo.org/wiki/Handbook:AMD64/Installation/Media
passwd
service sshd start
Now SSH to the VM
https://wiki.gentoo.org/wiki/Handbook:AMD64/Installation/Networking
ping -c 3 www.gentoo.org
https://wiki.gentoo.org/wiki/Handbook:AMD64/Installation/Disks
parted -a optimal /dev/sda
mklabel gpt
mkpart primary 1 3
name 1 grub
set 1 bios_grub on
mkpart primary 3 131
name 2 boot
set 2 boot on
mkpart primary 131 -1
name 3 lvm01
set 3 lvm on
print
Model: VMware Virtual disk (scsi)
Disk /dev/sda: 17.2GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Disk Flags:
Number Start End Size File system Name Flags
1 1049kB 3146kB 2097kB grub bios_grub
2 3146kB 131MB 128MB boot boot, esp
3 131MB 17.2GB 17.0GB lvm01 lvm
pvcreate /dev/sda3
Physical volume "/dev/sda3" successfully created.
vgcreate vg01 /dev/sda3
Volume group "vg01" successfully created
lvcreate -L 512M -n swap vg01
Logical volume "swap" created.
lvcreate -l 100%VG -n rootfs vg01
Logical volume "rootfs" created.
mkfs.ext2 /dev/sda2
mke2fs 1.43.3 (04-Sep-2016)
Creating filesystem with 124928 1k blocks and 31232 inodes
Filesystem UUID: 0014a5f5-3292-4aaf-8b2f-56265c532bae
Superblock backups stored on blocks:
8193, 24577, 40961, 57345, 73729
Allocating group tables: done
Writing inode tables: done
Writing superblocks and filesystem accounting information: done
mkfs.ext4 /dev/vg01/rootfs
mke2fs 1.43.3 (04-Sep-2016)
Creating filesystem with 4030464 4k blocks and 1007616 inodes
Filesystem UUID: a22d5428-fd8a-46a1-b204-9e4232b99335
Superblock backups stored on blocks:
32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208
Allocating group tables: done
Writing inode tables: done
Creating journal (16384 blocks): done
Writing superblocks and filesystem accounting information: done
mkswap /dev/vg01/swap
Setting up swapspace version 1, size = 512 MiB (536866816 bytes)
no label, UUID=65b0efcb-be33-4295-bcb9-2b359cfa6d86
swapon /dev/vg01/swap
mount /dev/vg01/rootfs /mnt/gentoo
https://wiki.gentoo.org/wiki/Handbook:AMD64/Installation/Stage
cd /mnt/gentoo
wget http://mirror.internode.on.net/pub/gentoo/releases/amd64/autobuilds/current-stage3-amd64/stage3-amd64-20171012.tar.bz2
tar xvjpf stage3-*.tar.bz2 --xattrs --numeric-owner
https://wiki.gentoo.org/wiki/Handbook:AMD64/Installation/Base
mirrorselect -i -o >> /mnt/gentoo/etc/portage/make.conf
mkdir /mnt/gentoo/etc/portage/repos.conf
cp /mnt/gentoo/usr/share/portage/config/repos.conf /mnt/gentoo/etc/portage/repos.conf/gentoo.conf
cp -L /etc/resolv.conf /mnt/gentoo/etc/
mount -t proc /proc /mnt/gentoo/proc
mount --rbind /sys /mnt/gentoo/sys
mount --make-rslave /mnt/gentoo/sys
mount --rbind /dev /mnt/gentoo/dev
mount --make-rslave /mnt/gentoo/dev
chroot /mnt/gentoo /bin/bash
source /etc/profile
export PS1="(chroot) $PS1"
mkdir /boot
mount /dev/sda2 /boot
emerge-webrsync
##### I'm not changing the profile so the default is OK
#####eselect profile list
emerge --ask --update --deep --newuse @world
echo "Australia/Victoria" > /etc/timezone
emerge --config sys-libs/timezone-data
nano -w /etc/locale.gen
locale-gen
eselect locale list
eselect locale set 5
env-update && source /etc/profile && export PS1="(chroot) $PS1"
https://wiki.gentoo.org/wiki/Handbook:AMD64/Installation/Kernel
emerge --ask sys-kernel/gentoo-sources
cd /usr/src/linux
make menuconfig
Processor type and features > Linux Guest Support
Device Drivers > Misc devices > VMware VMCI Driver
Device Drivers > Misc devices > VMware Balloon Driver
Device Drivers > SCSI device support > SCSI low-level drivers > VMware PVSCSI driver support
Device Drivers > Fusion MPT device support > Fusion MPT ScsiHost drivers for SPI
Networking support > Networking options > Virtual Socket protocol
make && make modules_install
make install
emerge --ask sys-kernel/genkernel
emerge --ask sys-fs/lvm2
genkernel --lvm --install initramfs
https://wiki.gentoo.org/wiki/Handbook:AMD64/Installation/System
nano -w /etc/fstab
/dev/sda2 /boot ext2 defaults,noatime 0 2
/dev/vg01/swap none swap sw 0 0
/dev/vg01/rootfs / ext4 noatime 0 1
/dev/cdrom /mnt/cdrom auto noauto,user 0 0
nano -w /etc/conf.d/hostname
nano -w /etc/conf.d/net
dns_domain_lo="test.local"
emerge --ask --noreplace net-misc/netifrc
nano -w /etc/conf.d/net
config_eno16777728="dhcp"
cd /etc/init.d
ln -s net.lo net.eno16777728
rc-update add net.eno16777728 default
passwd
https://wiki.gentoo.org/wiki/Handbook:AMD64/Installation/Tools
emerge --ask app-admin/sysklogd
emerge --ask sys-process/cronie
rc-update add cronie default
rc-update add sshd default
emerge --ask net-misc/dhcpcd
https://wiki.gentoo.org/wiki/Handbook:AMD64/Installation/Bootloader
# This is the second time I've run this
genkernel --lvm --install initramfs
nano -w /etc/portage/package.use/package.use
sys-boot/grub:2 device-mapper
emerge --ask --verbose sys-boot/grub:2
nano -w /etc/default/grub
GRUB_CMDLINE_LINUX_DEFAULT="dolvm"
grub-install /dev/sda
grub-mkconfig -o /boot/grub/grub.cfg
Generating grub configuration file ...
/run/lvm/lvmetad.socket: connect failed: No such file or directory
WARNING: Failed to connect to lvmetad. Falling back to internal scanning.
/run/lvm/lvmetad.socket: connect failed: No such file or directory
WARNING: Failed to connect to lvmetad. Falling back to internal scanning.
/run/lvm/lvmetad.socket: connect failed: No such file or directory
WARNING: Failed to connect to lvmetad. Falling back to internal scanning.
/run/lvm/lvmetad.socket: connect failed: No such file or directory
WARNING: Failed to connect to lvmetad. Falling back to internal scanning.
/run/lvm/lvmetad.socket: connect failed: No such file or directory
WARNING: Failed to connect to lvmetad. Falling back to internal scanning.
/run/lvm/lvmetad.socket: connect failed: No such file or directory
WARNING: Failed to connect to lvmetad. Falling back to internal scanning.
/run/lvm/lvmetad.socket: connect failed: No such file or directory
WARNING: Failed to connect to lvmetad. Falling back to internal scanning.
/run/lvm/lvmetad.socket: connect failed: No such file or directory
WARNING: Failed to connect to lvmetad. Falling back to internal scanning.
/run/lvm/lvmetad.socket: connect failed: No such file or directory
WARNING: Failed to connect to lvmetad. Falling back to internal scanning.
/run/lvm/lvmetad.socket: connect failed: No such file or directory
WARNING: Failed to connect to lvmetad. Falling back to internal scanning.
/run/lvm/lvmetad.socket: connect failed: No such file or directory
WARNING: Failed to connect to lvmetad. Falling back to internal scanning.
/run/lvm/lvmetad.socket: connect failed: No such file or directory
WARNING: Failed to connect to lvmetad. Falling back to internal scanning.
Found linux image: /boot/vmlinuz-4.12.12-gentoo
Found initrd image: /boot/initramfs-genkernel-x86_64-4.12.12-gentoo
/run/lvm/lvmetad.socket: connect failed: No such file or directory
WARNING: Failed to connect to lvmetad. Falling back to internal scanning.
/run/lvm/lvmetad.socket: connect failed: No such file or directory
WARNING: Failed to connect to lvmetad. Falling back to internal scanning.
done
exit
cd
umount -l /mnt/gentoo/dev{/shm,/pts,}
umount -R /mnt/gentoo
reboot
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If I don't run "genkernel --lvm --install initramfs" the second time then "grub-install /dev/sda" outputs this:
| Code: | Installing for i386-pc platform.
/run/lvm/lvmetad.socket: connect failed: No such file or directory
WARNING: Failed to connect to lvmetad. Falling back to internal scanning.
/run/lvm/lvmetad.socket: connect failed: No such file or directory
WARNING: Failed to connect to lvmetad. Falling back to internal scanning.
/run/lvm/lvmetad.socket: connect failed: No such file or directory
WARNING: Failed to connect to lvmetad. Falling back to internal scanning.
Installation finished. No error reported. |
Here is what is reported by "grub-mkconfig -o /boot/grub/grub.cfg" if I don't run "genkernel --lvm --install initramfs" the second time:
| Code: | Generating grub configuration file ...
/run/lvm/lvmetad.socket: connect failed: No such file or directory
WARNING: Failed to connect to lvmetad. Falling back to internal scanning.
/run/lvm/lvmetad.socket: connect failed: No such file or directory
WARNING: Failed to connect to lvmetad. Falling back to internal scanning.
/run/lvm/lvmetad.socket: connect failed: No such file or directory
WARNING: Failed to connect to lvmetad. Falling back to internal scanning.
/run/lvm/lvmetad.socket: connect failed: No such file or directory
WARNING: Failed to connect to lvmetad. Falling back to internal scanning.
/run/lvm/lvmetad.socket: connect failed: No such file or directory
WARNING: Failed to connect to lvmetad. Falling back to internal scanning.
/run/lvm/lvmetad.socket: connect failed: No such file or directory
WARNING: Failed to connect to lvmetad. Falling back to internal scanning.
/run/lvm/lvmetad.socket: connect failed: No such file or directory
WARNING: Failed to connect to lvmetad. Falling back to internal scanning.
/run/lvm/lvmetad.socket: connect failed: No such file or directory
WARNING: Failed to connect to lvmetad. Falling back to internal scanning.
/run/lvm/lvmetad.socket: connect failed: No such file or directory
WARNING: Failed to connect to lvmetad. Falling back to internal scanning.
/run/lvm/lvmetad.socket: connect failed: No such file or directory
WARNING: Failed to connect to lvmetad. Falling back to internal scanning.
/run/lvm/lvmetad.socket: connect failed: No such file or directory
WARNING: Failed to connect to lvmetad. Falling back to internal scanning.
/run/lvm/lvmetad.socket: connect failed: No such file or directory
WARNING: Failed to connect to lvmetad. Falling back to internal scanning.
/run/lvm/lvmetad.socket: connect failed: No such file or directory
WARNING: Failed to connect to lvmetad. Falling back to internal scanning.
/run/lvm/lvmetad.socket: connect failed: No such file or directory
WARNING: Failed to connect to lvmetad. Falling back to internal scanning.
done |
When I run "genkernel --lvm --install initramfs" the second time then "grub-install /dev/sda" outputs this:
| Code: | Installing for i386-pc platform.
Installation finished. No error reported. |
And the linux image is found when running "grub-mkconfig -o /boot/grub/grub.cfg":[/code]
| Code: | Generating grub configuration file ...
/run/lvm/lvmetad.socket: connect failed: No such file or directory
WARNING: Failed to connect to lvmetad. Falling back to internal scanning.
/run/lvm/lvmetad.socket: connect failed: No such file or directory
WARNING: Failed to connect to lvmetad. Falling back to internal scanning.
/run/lvm/lvmetad.socket: connect failed: No such file or directory
WARNING: Failed to connect to lvmetad. Falling back to internal scanning.
/run/lvm/lvmetad.socket: connect failed: No such file or directory
WARNING: Failed to connect to lvmetad. Falling back to internal scanning.
/run/lvm/lvmetad.socket: connect failed: No such file or directory
WARNING: Failed to connect to lvmetad. Falling back to internal scanning.
/run/lvm/lvmetad.socket: connect failed: No such file or directory
WARNING: Failed to connect to lvmetad. Falling back to internal scanning.
/run/lvm/lvmetad.socket: connect failed: No such file or directory
WARNING: Failed to connect to lvmetad. Falling back to internal scanning.
/run/lvm/lvmetad.socket: connect failed: No such file or directory
WARNING: Failed to connect to lvmetad. Falling back to internal scanning.
/run/lvm/lvmetad.socket: connect failed: No such file or directory
WARNING: Failed to connect to lvmetad. Falling back to internal scanning.
/run/lvm/lvmetad.socket: connect failed: No such file or directory
WARNING: Failed to connect to lvmetad. Falling back to internal scanning.
/run/lvm/lvmetad.socket: connect failed: No such file or directory
WARNING: Failed to connect to lvmetad. Falling back to internal scanning.
/run/lvm/lvmetad.socket: connect failed: No such file or directory
WARNING: Failed to connect to lvmetad. Falling back to internal scanning.
Found linux image: /boot/vmlinuz-4.12.12-gentoo
Found initrd image: /boot/initramfs-genkernel-x86_64-4.12.12-gentoo
/run/lvm/lvmetad.socket: connect failed: No such file or directory
WARNING: Failed to connect to lvmetad. Falling back to internal scanning.
/run/lvm/lvmetad.socket: connect failed: No such file or directory
WARNING: Failed to connect to lvmetad. Falling back to internal scanning.
done |
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nokilli
Apprentice
Joined: 25 Feb 2004
Posts: 196
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| Posted: Sun Oct 22, 2017 11:10 am Post subject: |
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I'm just going to throw out a couple of things that stand out, not really knowing whether this is the source of your problem.
It's an amd64 system, so you probably want...
| Code: | | GRUB_PLATFORMS="efi-64" |
... in your make.conf.
I think you need a link to your efi partition from boot so that grub-install finds it, or otherwise point grub-install to it via the command line. I also think you need to format it vfat. Either genkernel or grub-install may do this for you automatically but the order is somehow important which may explain why you need to run genkernel twice.
_________________
Today is the first day of the rest of your Gentoo installation. |
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Box293
n00b
Joined: 12 May 2017
Posts: 9
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| Posted: Sun Oct 22, 2017 10:20 pm Post subject: |
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| Great, thanks for the ideas, I'll give them a try and report back. |
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Box293
n00b
Joined: 12 May 2017
Posts: 9
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| Posted: Mon Oct 23, 2017 10:10 am Post subject: |
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OK I worked it out and it was something simple I overlooked.
As I was working through each stage of the handbook I would shutdown the VM and taking a snapshot.
I completed the Kernel stage, shut it down and took a snapshot. When I powered it back on I used the following commands before continuing:
| Code: | vgchange -ay vg01
swapon /dev/vg01/swap
mount /dev/vg01/rootfs /mnt/gentoo
mount -t proc /proc /mnt/gentoo/proc
mount --rbind /sys /mnt/gentoo/sys
mount --make-rslave /mnt/gentoo/sys
mount --rbind /dev /mnt/gentoo/dev
mount --make-rslave /mnt/gentoo/dev
chroot /mnt/gentoo /bin/bash
source /etc/profile
export PS1="(chroot) $PS1" |
I had completely missed this command:
| Code: | | mount /dev/sda2 /boot |
Obviously that is why I needed to run "genkernel" the second time when I was on the "Configuring the bootloader" stage, because nothing existed in /boot.
I certainly learnt a lot, now I can work on getting the specific LVM steps added to the handbook / LVM guides. |
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charles17
Advocate
Joined: 02 Mar 2008
Posts: 3664
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| Posted: Mon Oct 23, 2017 10:23 am Post subject: |
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| Box293 wrote: | Obviously that is why I needed to run "genkernel" the second time when I was on the "Configuring the bootloader" stage, because nothing existed in /boot.
I certainly learnt a lot, now I can work on getting the specific LVM steps added to the handbook / LVM guides. |
For solution using custom initramfs instead of genkernel and EFI stub kernel instead of grub see topic 1068042 |
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Box293
n00b
Joined: 12 May 2017
Posts: 9
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| Posted: Mon Oct 23, 2017 12:09 pm Post subject: |
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I added all the required steps to the LVM guide:
https://wiki.gentoo.org/wiki/LVM#Handbook
Hopefully this will save others time when wanting to install Gentoo using LVM.
Some of the formatting in the guide needs to be fixed, I tried to duplicate as much as possible looking at other guides but some things I couldn't figure out.
Thanks charles17 for your input as well. |
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Installing Gentoo
