| View previous topic :: View next topic |
| Author |
Message |
eatingthenight
n00b
Joined: 28 Apr 2018
Posts: 10
|
 Posted: Sat Apr 28, 2018 4:39 pm Post subject: [Solved] Boot issues GRUB2/NVMe/GPT/EFI |
 |
|
Hey the forums have been real helpful throught the install so far however a few hours of searching haven't turned up anything obvious for fixing this. I am trying to install Gentoo on a new Carbon X1 6th Gen laptop and upon booting up I get an error that it can't fine the needed root drive. I have tried booting without the initramfs which clearly didn't have nvme enabled in it and thus makes sense that it would fail. I removed the initramfs and tried booting both with genkernel and a custom kernel that I ensured is compiled with NVMe enabled in the kernel not as a module. With both kernels it segfauls saying VFS can't mount root fs.
Some System Info:
Drive Format
| Code: |
root@sysresccd /root % parted /dev/nvme0n1
GNU Parted 3.2
Using /dev/nvme0n1
Welcome to GNU Parted! Type 'help' to view a list of commands.
(parted) print
Model: NVMe Device (nvme)
Disk /dev/nvme0n1: 256GB
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 137MB 134MB fat16 boot boot, esp
3 137MB 256GB 256GB ext4 rootfs
|
My boot directory containing both my custom kernel and genkernal
| Code: |
sysresccd /boot # ls -lah
total 17M
drwxr-xr-x 4 root root 16K Dec 31 1969 .
drwxr-xr-x 21 root root 4.0K Apr 23 20:00 ..
-rwxr-xr-x 1 root root 145K Apr 28 07:51 config-4.9.76-gentoo-r1
drwxr-xr-x 3 root root 2.0K Apr 27 21:53 EFI
drwxr-xr-x 6 root root 2.0K Apr 28 08:02 grub
-rwxr-xr-x 1 root root 5.2M Apr 27 21:30 kernel-genkernel-x86_64-4.9.76-gentoo-r1
-rwxr-xr-x 1 root root 3.1M Apr 28 07:51 System.map-4.9.76-gentoo-r1
-rwxr-xr-x 1 root root 3.1M Apr 27 21:30 System.map-genkernel-x86_64-4.9.76-gentoo-r1
-rwxr-xr-x 1 root root 5.2M Apr 28 07:51 vmlinuz-4.9.76-gentoo-r1
|
My grub config file
| Code: |
sysresccd /boot/grub # cat grub.cfg
#
# DO NOT EDIT THIS FILE
#
# It is automatically generated by grub-mkconfig using templates
# from /etc/grub.d and settings from /etc/default/grub
#
### BEGIN /etc/grub.d/00_header ###
if [ -s $prefix/grubenv ]; then
load_env
fi
if [ "${next_entry}" ] ; then
set default="${next_entry}"
set next_entry=
save_env next_entry
set boot_once=true
else
set default="0"
fi
if [ x"${feature_menuentry_id}" = xy ]; then
menuentry_id_option="--id"
else
menuentry_id_option=""
fi
export menuentry_id_option
if [ "${prev_saved_entry}" ]; then
set saved_entry="${prev_saved_entry}"
save_env saved_entry
set prev_saved_entry=
save_env prev_saved_entry
set boot_once=true
fi
function savedefault {
if [ -z "${boot_once}" ]; then
saved_entry="${chosen}"
save_env saved_entry
fi
}
function load_video {
if [ x$feature_all_video_module = xy ]; then
insmod all_video
else
insmod efi_gop
insmod efi_uga
insmod ieee1275_fb
insmod vbe
insmod vga
insmod video_bochs
insmod video_cirrus
fi
}
if [ x$feature_default_font_path = xy ] ; then
font=unicode
else
insmod part_gpt
insmod ext2
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root bac30a0a-1bcf-45e5-a9bf-8783d47141f0
else
search --no-floppy --fs-uuid --set=root bac30a0a-1bcf-45e5-a9bf-8783d47141f0
fi
font="/usr/share/grub/unicode.pf2"
fi
if loadfont $font ; then
set gfxmode=auto
load_video
insmod gfxterm
set locale_dir=$prefix/locale
set lang=en_US
insmod gettext
fi
terminal_output gfxterm
if [ x$feature_timeout_style = xy ] ; then
set timeout_style=menu
set timeout=5
# Fallback normal timeout code in case the timeout_style feature is
# unavailable.
else
set timeout=5
fi
### END /etc/grub.d/00_header ###
### BEGIN /etc/grub.d/10_linux ###
menuentry 'Gentoo GNU/Linux' --class gentoo --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-simple-bac30a0a-1bcf-45e5-a9bf-8783d47141f0' {
load_video
if [ "x$grub_platform" = xefi ]; then
set gfxpayload=keep
fi
insmod gzio
insmod part_gpt
insmod fat
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root B63C-3429
else
search --no-floppy --fs-uuid --set=root B63C-3429
fi
echo 'Loading Linux x86_64-4.9.76-gentoo-r1 ...'
linux /kernel-genkernel-x86_64-4.9.76-gentoo-r1 root=/dev/nvme0n1p3 ro
}
submenu 'Advanced options for Gentoo GNU/Linux' $menuentry_id_option 'gnulinux-advanced-bac30a0a-1bcf-45e5-a9bf-8783d47141f0' {
menuentry 'Gentoo GNU/Linux, with Linux x86_64-4.9.76-gentoo-r1' --class gentoo --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-x86_64-4.9.76-gentoo-r1-advanced-bac30a0a-1bcf-45e5-a9bf-8783d47141f0' {
load_video
if [ "x$grub_platform" = xefi ]; then
set gfxpayload=keep
fi
insmod gzio
insmod part_gpt
insmod fat
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root B63C-3429
else
search --no-floppy --fs-uuid --set=root B63C-3429
fi
echo 'Loading Linux x86_64-4.9.76-gentoo-r1 ...'
linux /kernel-genkernel-x86_64-4.9.76-gentoo-r1 root=/dev/nvme0n1p3 ro
}
menuentry 'Gentoo GNU/Linux, with Linux x86_64-4.9.76-gentoo-r1 (recovery mode)' --class gentoo --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-x86_64-4.9.76-gentoo-r1-recovery-bac30a0a-1bcf-45e5-a9bf-8783d47141f0' {
load_video
if [ "x$grub_platform" = xefi ]; then
set gfxpayload=keep
fi
insmod gzio
insmod part_gpt
insmod fat
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root B63C-3429
else
search --no-floppy --fs-uuid --set=root B63C-3429
fi
echo 'Loading Linux x86_64-4.9.76-gentoo-r1 ...'
linux /kernel-genkernel-x86_64-4.9.76-gentoo-r1 root=/dev/nvme0n1p3 ro single
}
menuentry 'Gentoo GNU/Linux, with Linux 4.9.76-gentoo-r1' --class gentoo --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.9.76-gentoo-r1-advanced-bac30a0a-1bcf-45e5-a9bf-8783d47141f0' {
load_video
if [ "x$grub_platform" = xefi ]; then
set gfxpayload=keep
fi
insmod gzio
insmod part_gpt
insmod fat
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root B63C-3429
else
search --no-floppy --fs-uuid --set=root B63C-3429
fi
echo 'Loading Linux 4.9.76-gentoo-r1 ...'
linux /vmlinuz-4.9.76-gentoo-r1 root=/dev/nvme0n1p3 ro
}
menuentry 'Gentoo GNU/Linux, with Linux 4.9.76-gentoo-r1 (recovery mode)' --class gentoo --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.9.76-gentoo-r1-recovery-bac30a0a-1bcf-45e5-a9bf-8783d47141f0' {
load_video
if [ "x$grub_platform" = xefi ]; then
set gfxpayload=keep
fi
insmod gzio
insmod part_gpt
insmod fat
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root B63C-3429
else
search --no-floppy --fs-uuid --set=root B63C-3429
fi
echo 'Loading Linux 4.9.76-gentoo-r1 ...'
linux /vmlinuz-4.9.76-gentoo-r1 root=/dev/nvme0n1p3 ro single
}
}
### END /etc/grub.d/10_linux ###
### BEGIN /etc/grub.d/20_linux_xen ###
### END /etc/grub.d/20_linux_xen ###
### BEGIN /etc/grub.d/30_os-prober ###
### END /etc/grub.d/30_os-prober ###
### BEGIN /etc/grub.d/40_custom ###
# This file provides an easy way to add custom menu entries. Simply type the
# menu entries you want to add after this comment. Be careful not to change
# the 'exec tail' line above.
### END /etc/grub.d/40_custom ###
### BEGIN /etc/grub.d/41_custom ###
if [ -f ${config_directory}/custom.cfg ]; then
source ${config_directory}/custom.cfg
elif [ -z "${config_directory}" -a -f $prefix/custom.cfg ]; then
source $prefix/custom.cfg;
fi
### END /etc/grub.d/41_custom ###
|
Also a random question what is the purpose of the /boot/grub/x86_64-efi folder it looks like it contains a much of modules but I would expect to see an nvme one in it but I do not.
Other random information while I'm thinking of it. When i messed around in the initramfs I tried to manually modprobe nvme and it failed saying it couldn't find the nvme_core.ko file.
Any help much appreciated.
Last edited by eatingthenight on Sun Apr 29, 2018 7:13 pm; edited 1 time in total |
|
| Back to top |
|
 |
eatingthenight
n00b
Joined: 28 Apr 2018
Posts: 10
|
| Posted: Sat Apr 28, 2018 8:01 pm Post subject: |
|
|
EFI output if helpful for anything
| Code: |
root@sysresccd /boot % efibootmgr -v
BootCurrent: 001C
Timeout: 0 seconds
BootOrder: 0001,0000,001C,0018,0019,001A,001B,001D,001E,001F,0024
Boot0000* Windows Boot Manager HD(2,GPT,4a4b7ff4-4771-4c1d-9751-f2a97be01b0e,0x1800,0x40000)/File(\EFI\Microsoft\Boot\bootmgfw.efi)WINDOWS.........x...B.C.D.O.B.J.E.C.T.=.{.9.d.e.a.8.6.2.c.-.5.c.d.d.-.4.e.7.0.-.a.c.c.1.-.f.3.2.b.3.4.4.d.4.7.9.5.}....................
Boot0001* gentoo HD(2,GPT,4a4b7ff4-4771-4c1d-9751-f2a97be01b0e,0x1800,0x40000)/File(\EFI\gentoo\grubx64.efi)
Boot0010 Setup FvFile(721c8b66-426c-4e86-8e99-3457c46ab0b9)
Boot0011 Boot Menu FvFile(126a762d-5758-4fca-8531-201a7f57f850)
Boot0012 Diagnostic Splash Screen FvFile(a7d8d9a6-6ab0-4aeb-ad9d-163e59a7a380)
Boot0013 Lenovo Diagnostics FvFile(3f7e615b-0d45-4f80-88dc-26b234958560)
Boot0014 Regulatory Information FvFile(478c92a0-2622-42b7-a65d-5894169e4d24)
Boot0015 Startup Interrupt Menu FvFile(f46ee6f4-4785-43a3-923d-7f786c3c8479)
Boot0016 Rescue and Recovery FvFile(665d3f60-ad3e-4cad-8e26-db46eee9f1b5)
Boot0017 MEBx Hot Key FvFile(ac6fd56a-3d41-4efd-a1b9-870293811a28)
Boot0018* USB CD VenMsg(bc7838d2-0f82-4d60-8316-c068ee79d25b,86701296aa5a7848b66cd49dd3ba6a55)
Boot0019* USB FDD VenMsg(bc7838d2-0f82-4d60-8316-c068ee79d25b,6ff015a28830b543a8b8641009461e49)
Boot001A* NVMe0 VenMsg(bc7838d2-0f82-4d60-8316-c068ee79d25b,001c199932d94c4eae9aa0b6e98eb8a400)
Boot001B* ATA HDD0 VenMsg(bc7838d2-0f82-4d60-8316-c068ee79d25b,91af625956449f41a7b91f4f892ab0f601)
Boot001C* USB HDD VenMsg(bc7838d2-0f82-4d60-8316-c068ee79d25b,33e821aaaf33bc4789bd419f88c50803)
Boot001D* PCI LAN VenMsg(bc7838d2-0f82-4d60-8316-c068ee79d25b,78a84aaf2b2afc4ea79cf5cc8f3d3803)
Boot001E Other CD VenMsg(bc7838d2-0f82-4d60-8316-c068ee79d25b,aea2090adfde214e8b3a5e471856a35406)
Boot001F Other HDD VenMsg(bc7838d2-0f82-4d60-8316-c068ee79d25b,91af625956449f41a7b91f4f892ab0f606)
Boot0020* USBR BOOT CDROM PciRoot(0x0)/Pci(0x14,0x0)/USB(11,1)
Boot0021* USBR BOOT Floppy PciRoot(0x0)/Pci(0x14,0x0)/USB(11,0)
Boot0022* ATA HDD VenMsg(bc7838d2-0f82-4d60-8316-c068ee79d25b,91af625956449f41a7b91f4f892ab0f6)
Boot0023* ATAPI CD VenMsg(bc7838d2-0f82-4d60-8316-c068ee79d25b,aea2090adfde214e8b3a5e471856a354)
Boot0024* PCI LAN VenMsg(bc7838d2-0f82-4d60-8316-c068ee79d25b,78a84aaf2b2afc4ea79cf5cc8f3d3803)
|
|
|
| Back to top |
|
|
eatingthenight
n00b
Joined: 28 Apr 2018
Posts: 10
|
| Posted: Sat Apr 28, 2018 8:40 pm Post subject: |
|
|
| I did manage to get it to fine NVME drives on boot and can see them listed however now it isn't loading them now. The genkernel tries to load the proper drive but doens't load the NVME module so I'm missing something I imagine in my custom kernel config. |
|
| Back to top |
|
|
eatingthenight
n00b
Joined: 28 Apr 2018
Posts: 10
|
| Posted: Sat Apr 28, 2018 9:21 pm Post subject: |
|
|
Not to leave anyone hanging if they come across this later but I was able to get this working. Make sure to check in the .config file for your kernel and ENSURE that it says all NVME config is turned on and installed in the kernel not as a module. I turned on CONFIG_NVME_CORE and CONFIG_BLK_DEV_NVME although i'm not sure if both were needed.
This gets you almost all the way to what you want. You need to re-create your initramfs as well. I did this using genkernel --install initramfs which was set to use the kernel in /usr/src/linux which we have just updated to support NVME devices.
I am curious why an initramfs is needed in this case however. The install guide made it sound like having one was optional unless you wanted to do something like RAID or root encryption. It seems like the initramfs is needed for the nvme driver to be loaded however which ... seems strange due to limited knowledge of the boot process internals.
Thanks! |
|
| Back to top |
|
|
eatingthenight
n00b
Joined: 28 Apr 2018
Posts: 10
|
| Posted: Tue May 08, 2018 1:55 am Post subject: |
|
|
| So i looked into my issue a bit more today and wanted to post back here for anyone who comes across this. I forgot to build ext4 support which my root file system uses into the kernel. After doing this and rebooting I was able to boot. Note that you can't use UUID if you aren't using a initramfs since this it not yet available so you will need to set root to the block device which should look something like /dev/nvme0n1p3 or /dev/sda. |
|
| Back to top |
|
|
|
|
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
|
|
Installing Gentoo
