[arch-general] install Arch on Btrfs - dual boot w10/arch - can't find vmlinuz on boot menu
I followed the arch install wiki to install arch alongside w10 and dual boot. (w10 was already installed). Here is a summarize of the output of fdisk: ---------------------------------------------- # fdisk -l Disk /dev/nvme0n1 /dev/nvme0n1p1........ 260M EFI System /dev/nvme0n1p3......... 186G Microsoft basic data /dev/nvme0n1p6......... 264.7G Linux filesystem -------------------------------------------------------- I formatted the Linux partition with Btrfs. In short: # mkdir /mnt/btrfs # cd /mnt/btrfs # btrfs subvolume create /mnt/home I created this way 5 subvol: ROOT, home, etc, .snapshots, development --------------------------------------------------------------------- Then generated fstab. Here I have a first doubt about how it has been done. The first line is : ------------------------------------------ #/dev/nvme0n1p6 LABEL=daffodil-root UUID=xxxyyyyy / btrfs rw,noatime,compress=lzo,ssd,subvolid=261,subvol=/ROOT,subvol=ROOT 0 0 ---------------------------------------------- ---> Question 1: why twice subvol ? Is it normal or shall I delete one? Then, still on install, I followed systemd-boot wiki. Once arch installed and chrooted, I did the following (*here I have doubts about my method*). I 1- mounted the EFI partition (/dev/nvme0n1p1) on /boot 2- bootctl --path=/boot install 3- copied the linux stuff (initramfs, vmlinuz...) on /boot. I finished with a /boot folder populated as described in systemd-boot articles. ---> Question 2 Then I wrote an enter in fstab for the vfat boot partition. I AM NOT SURE AT ALL I have to do this. Once installed finished, I rebooted. The systemd-boot menu appeared as expected, but didn't work as it was unable to find vmlinuz neither w10. ~~~~ Back to the install script, I try to fix things now. I first mounted the Linux partition in /mnt. I can see all the created btrfs subvol when running btrfs subvolume list ---------------------------- # btrfs subvolume list -p /mnt ID 261 gen 179 parent 5 top level 5 path ROOT ..... ID 267 gen 35 parent 261 top level 261 path ROOT/var/lib/machines --------------------------------------- A few questions: ------> Question 3 : why this line about systemd machines? Is it expected? ------> Question 4 : according to arch btrfs wiki, "Changing subvolume layouts is made simpler by not using the toplevel subvolume (ID=5) as /".It is not my case. How can I change this to avoid using the toplevel as / ? Thank you for your help and hints on: - why dual boot can't find OS - is my btrfs install clean
On Sat, Apr 1, 2017 at 12:27 PM arnaud gaboury
I followed the arch install wiki to install arch alongside w10 and dual boot. (w10 was already installed). Here is a summarize of the output of fdisk: ---------------------------------------------- # fdisk -l Disk /dev/nvme0n1
/dev/nvme0n1p1........ 260M EFI System /dev/nvme0n1p3......... 186G Microsoft basic data /dev/nvme0n1p6......... 264.7G Linux filesystem --------------------------------------------------------
I formatted the Linux partition with Btrfs. In short: # mkdir /mnt/btrfs # cd /mnt/btrfs # btrfs subvolume create /mnt/home I created this way 5 subvol: ROOT, home, etc, .snapshots, development ---------------------------------------------------------------------
Then generated fstab. Here I have a first doubt about how it has been done. The first line is : ------------------------------------------ #/dev/nvme0n1p6 LABEL=daffodil-root UUID=xxxyyyyy / btrfs rw,noatime,compress=lzo,ssd,subvolid=261,subvol=/ROOT,subvol=ROOT 0 0 ----------------------------------------------
---> Question 1: why twice subvol ? Is it normal or shall I delete one?
Then, still on install, I followed systemd-boot wiki. Once arch installed and chrooted, I did the following (*here I have doubts about my method*). I 1- mounted the EFI partition (/dev/nvme0n1p1) on /boot 2- bootctl --path=/boot install 3- copied the linux stuff (initramfs, vmlinuz...) on /boot. I finished with a /boot folder populated as described in systemd-boot articles. ---> Question 2 Then I wrote an enter in fstab for the vfat boot partition. I AM NOT SURE AT ALL I have to do this.
Once installed finished, I rebooted. The systemd-boot menu appeared as expected, but didn't work as it was unable to find vmlinuz neither w10.
~~~~ Back to the install script, I try to fix things now.
I first mounted the Linux partition in /mnt. I can see all the created btrfs subvol when running btrfs subvolume list ---------------------------- # btrfs subvolume list -p /mnt ID 261 gen 179 parent 5 top level 5 path ROOT ..... ID 267 gen 35 parent 261 top level 261 path ROOT/var/lib/machines --------------------------------------- A few questions: ------> Question 3 : why this line about systemd machines? Is it expected? ------> Question 4 : according to arch btrfs wiki, "Changing subvolume layouts is made simpler by not using the toplevel subvolume (ID=5) as /".It is not my case. How can I change this to avoid using the toplevel as / ?
Thank you for your help and hints on: - why dual boot can't find OS - is my btrfs install clean
I maybe find a hint: --------------------- # mount /dev/nvme0n1p1 /boot (mount the EFI partition) # bootctl Loader: Product : systemd-boot 232 Partition: n/a File: -- /EFI/BOOT/loader.efi .............. ------------------------------------------ *Here I should have a partition number.*
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arnaud gaboury