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djentoo
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Joined: 17 Oct 2017
Posts: 37
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 Posted: Wed Apr 04, 2018 8:36 am Post subject: [solved] Troubleshooting - grub not loading on boot |
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Edited from original post. I am trying to install Gentoo on a Samsung Chronos 7 with the minimal install disc. It has an Intel i7, so I am following the amd64 handbook. As of now, it is partitioned and the system is installed, but GRUB is not booting and therefore the kernel is not loading. After toying around with BIOS options to ensure it wasn't a Secureboot problem (this is a UEFI system), I gave it a rest. The ubuntu fairy farted on it while I was asleep and now it will not boot or read the minimal install disc - either USB or DVD format. It also corrupted my USB ISO. Now it will work with a liveCD of Gentoo or Mint. Please help me to understand these issues and complete the installation!
Prepared the disks - I made a mistake by adding a bios boot as seen in the tutorial and later removed it.
| Quote: | /dev/sda2 - boot 128mb FAT32
/dev/sda3 - swap 512mb
/dev/sda4 - rootfs 100gb ext4
/dev/sda5 - home 500gb ext4 |
Installed the stage3-amd64-20180325T214502Z.tar.xz tarball.
Mounted proc and other fs and chrooted to the mounted partition with unpacked tarball. Mounted /boot. Performed the emerge steps.
- Profile: [25] default/linux/amd64/17.0/systemd (stable) (I do not know which DE to go with yet)
- I completed all the other steps in installing the base system.
- I chose not to configure the kernel and compiled genkernel instead, and I generated an initramfs, which is in /boot. (you can see fstab below)
- I skipped the module configuration.
- I configured the fstab and reviewed blkid. I did not spend much time here.
- I set up a wired connection and added it to init.d.
- I set up the root passwd.
- I skipped installing tools and software for now.
- I followed the steps for GRUB2:
| Code: | echo 'GRUB_PLATFORMS="efi-64"' >> /etc/portage/make.conf
emerge --ask sys-boot/grub:2
grub-install --target=x86_64-efi --efi-directory=/boot |
It did not boot, so I posted, and I attempted the recommendations by P Kosunen. I hope I followed correctly; steps completed:
| Code: | mounte /dev/sda4 /mnt/gentoo && mount /dev/sda4 /mnt/gentoo
rm -R /grub # old grubx64.efi installation
grub-install --target=x86_64-efi --efi-directory=/boot/efi #output lines of "device node not found", but it said installation completed with no problems |
There is an extra EFI directory; /boot/EFI/EFI/gentoo/grubx64.efi.
I think I misunderstood a step. Was I supposed to instead mount /dev/sda to /boot/EFI, rather than /boot?
Last edited by djentoo on Thu Apr 05, 2018 3:47 pm; edited 15 times in total |
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P.Kosunen
Guru
Joined: 21 Nov 2005
Posts: 309
Location: Finland
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| Posted: Wed Apr 04, 2018 11:17 am Post subject: |
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I would recommend mounting EFI partition to /mnt/gentoo/boot/efi after root is mounted to /mnt/gentoo, so only grubx64.fi file goes to EFI partition, kernels and grub modules etc stays on root partition.
https://wiki.gentoo.org/wiki/Handbook:AMD64/Installation/Bootloader#Install
| Code: | | grub-install --target=x86_64-efi --efi-directory=/boot/efi |
After this you should have only /EFI/gentoo/grubx64.efi file in EFI partition, it can load config from your root partition. |
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djentoo
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Joined: 17 Oct 2017
Posts: 37
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| Posted: Wed Apr 04, 2018 2:39 pm Post subject: |
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| Thanks, I will try this. I am now having trouble getting the install USB to boot like before. The computer is reading that all boot options have been tried even though it is recognizing the boot USB device in the option! I am not sure what happened. I have verified the USB boot works on another computer and I have gone in to reset UEFI settings to default and disabled secure boot again... hopefully resetting CMOS will fix the problem. Any ideas? |
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djentoo
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Joined: 17 Oct 2017
Posts: 37
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| Posted: Wed Apr 04, 2018 9:24 pm Post subject: |
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| P.Kosunen wrote: | I would recommend mounting EFI partition to /mnt/gentoo/boot/efi after root is mounted to /mnt/gentoo, so only grubx64.fi file goes to EFI partition, kernels and grub modules etc stays on root partition.
https://wiki.gentoo.org/wiki/Handbook:AMD64/Installation/Bootloader#Install
| Code: | | grub-install --target=x86_64-efi --efi-directory=/boot/efi |
After this you should have only /EFI/gentoo/grubx64.efi file in EFI partition, it can load config from your root partition. |
Okay, we have some other problems.
My USB boot was no longer readable by my other Linux machine. Not sure what happened. I can still format it, but it is now read only.
The target computer will not boot the minimal install disc period - whether USB or DVD. It does not even recognize it. I think this is something to do with UEFI/GPT??
It will run Linux Mint Live CD and Gentoo Live CD. I presume it will also load with other live CDs. Why not the minimal install disc, though?
I used the Linux Mint Live CD to mount /dev/sda4 onto /mnt/gentoo and /dev/sda2 to boot. I followed your instructions to install GRUB, and then I removed /boot/gentoo recursively. I verified the /EFI/gentoo/grubx64.efi was there. When I installed GRUB, I got several output lines of "device node not found", but it said installation completed with no problems.
After all that, it still did not boot GRUB. It won't read the Gentoo Live USB, but it will read the DVD. I would like to know what is going on though, to ensure that I did not fry my BIOS and need to reflash it or something. |
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djentoo
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Joined: 17 Oct 2017
Posts: 37
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| Posted: Wed Apr 04, 2018 10:18 pm Post subject: |
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OK, I am now logged in Gentoo liveCD and posting from there. Here is some output below that may be useful in determining what the problem is. Looking at /boot, it seems I need to move /gentoo/grubx64.efi to /boot/EFI and remove /boot/EFI/EFI. Correct? Not sure what else it may be. Please have a look at the directory lists, fstab, and blkid output.
| Code: | gentoo@livecd ~ $ sudo passwd root
New password:
Retype new password:
passwd: password updated successfully
gentoo@livecd ~ $ sudo login root
Password:
Last login: Thu Feb 11 17:44:17 UTC 2016 on pts/1
livecd ~ # mount /dev/sda4 /mnt/gentoo
livecd ~ # mount /dev/sda2 /mnt/gentoo/boot
livecd ~ # chroot /mnt/gentoo
livecd / # ls
bin etc lib32 media proc sbin tmp
boot home lib64 mnt root stage3-amd64-20180325T214502Z.tar.xz usr
dev lib lost+found opt run sys var
livecd / # ls -R /boot
/boot:
EFI grub initramfs-genkernel-x86_64-4.9.76-gentoo-r1
/boot/EFI:
EFI
/boot/EFI/EFI:
gentoo
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/boot/EFI/EFI/gentoo:
| Code: | grubx64.efi
/boot/grub:
fonts grub.cfg grubenv locale themes x86_64-efi
/boot/grub/fonts:
unicode.pf2
/boot/grub/locale:
ast.mo de_CH.mo en@piglatin.mo fr.mo it.mo nl.mo sl.mo vi.mo
ca.mo en@arabic.mo en@quot.mo gl.mo ja.mo pa.mo sr.mo zh_CN.mo
da.mo en@cyrillic.mo eo.mo hr.mo ko.mo pl.mo sv.mo zh_TW.mo
de.mo en@greek.mo es.mo hu.mo lt.mo pt_BR.mo tr.mo
de@hebrew.mo en@hebrew.mo fi.mo id.mo nb.mo ru.mo uk.mo
/boot/grub/themes:
starfield
/boot/grub/themes/starfield:
COPYING.CC-BY-SA-3.0 boot_menu_s.png dejavu_bold_14.pf2 terminal_box_ne.png
README boot_menu_se.png slider_c.png terminal_box_nw.png
blob_w.png boot_menu_sw.png slider_n.png terminal_box_s.png
boot_menu_c.png boot_menu_w.png slider_s.png terminal_box_se.png
boot_menu_e.png dejavu_10.pf2 starfield.png terminal_box_sw.png
boot_menu_n.png dejavu_12.pf2 terminal_box_c.png terminal_box_w.png
boot_menu_ne.png dejavu_14.pf2 terminal_box_e.png theme.txt
boot_menu_nw.png dejavu_16.pf2 terminal_box_n.png
/boot/grub/x86_64-efi:
acpi.mod gcry_tiger.mod part_sun.mod
adler32.mod gcry_twofish.mod part_sunpc.mod
affs.mod gcry_whirlpool.mod partmap.lst
afs.mod geli.mod parttool.lst
ahci.mod gettext.mod parttool.mod
all_video.mod gfxmenu.mod password.mod
aout.mod gfxterm.mod password_pbkdf2.mod
appleldr.mod gfxterm_background.mod pata.mod
archelp.mod gfxterm_menu.mod pbkdf2.mod
at_keyboard.mod gptsync.mod pbkdf2_test.mod
ata.mod grub.efi pcidump.mod
backtrace.mod gzio.mod play.mod
bfs.mod halt.mod png.mod
bitmap.mod hashsum.mod priority_queue.mod
bitmap_scale.mod hdparm.mod probe.mod
blocklist.mod hello.mod procfs.mod
boot.mod help.mod progress.mod
bsd.mod hexdump.mod raid5rec.mod
bswap_test.mod hfs.mod raid6rec.mod
btrfs.mod hfsplus.mod random.mod
bufio.mod hfspluscomp.mod read.mod
cat.mod http.mod reboot.mod
cbfs.mod iorw.mod regexp.mod
cbls.mod iso9660.mod reiserfs.mod
cbmemc.mod jfs.mod relocator.mod
cbtable.mod jpeg.mod romfs.mod
cbtime.mod keylayouts.mod scsi.mod
chain.mod keystatus.mod search.mod
cmdline_cat_test.mod ldm.mod search_fs_file.mod
cmp.mod legacy_password_test.mod search_fs_uuid.mod
cmp_test.mod legacycfg.mod search_label.mod
command.lst linux.mod serial.mod
configfile.mod linux16.mod setjmp.mod
core.efi loadbios.mod setjmp_test.mod
cpio.mod loadenv.mod setpci.mod
cpio_be.mod loopback.mod sfs.mod
cpuid.mod ls.mod shift_test.mod
crc64.mod lsacpi.mod signature_test.mod
crypto.lst lsefi.mod sleep.mod
crypto.mod lsefimmap.mod sleep_test.mod
cryptodisk.mod lsefisystab.mod spkmodem.mod
cs5536.mod lsmmap.mod squash4.mod
ctz_test.mod lspci.mod syslinuxcfg.mod
date.mod lssal.mod tar.mod
datehook.mod luks.mod terminal.lst
datetime.mod lvm.mod terminal.mod
disk.mod lzopio.mod terminfo.mod
diskfilter.mod macbless.mod test.mod
div.mod macho.mod test_blockarg.mod
div_test.mod mdraid09.mod testload.mod
dm_nv.mod mdraid09_be.mod testspeed.mod
echo.mod mdraid1x.mod tftp.mod
efi_gop.mod memdisk.mod tga.mod
efi_uga.mod memrw.mod time.mod
efifwsetup.mod minicmd.mod tr.mod
efinet.mod minix.mod trig.mod
ehci.mod minix2.mod true.mod
elf.mod minix2_be.mod udf.mod
eval.mod minix3.mod ufs1.mod
exfat.mod minix3_be.mod ufs1_be.mod
exfctest.mod minix_be.mod ufs2.mod
ext2.mod mmap.mod uhci.mod
extcmd.mod moddep.lst usb.mod
fat.mod modinfo.sh usb_keyboard.mod
file.mod morse.mod usbms.mod
fixvideo.mod mpi.mod usbserial_common.mod
font.mod msdospart.mod usbserial_ftdi.mod
fs.lst mul_test.mod usbserial_pl2303.mod
fshelp.mod multiboot.mod usbserial_usbdebug.mod
functional_test.mod multiboot2.mod usbtest.mod
gcry_arcfour.mod nativedisk.mod verify.mod
gcry_blowfish.mod net.mod video.lst
gcry_camellia.mod newc.mod video.mod
gcry_cast5.mod nilfs2.mod video_bochs.mod
gcry_crc.mod normal.mod video_cirrus.mod
gcry_des.mod ntfs.mod video_colors.mod
gcry_dsa.mod ntfscomp.mod video_fb.mod
gcry_idea.mod odc.mod videoinfo.mod
gcry_md4.mod offsetio.mod videotest.mod
gcry_md5.mod ohci.mod videotest_checksum.mod
gcry_rfc2268.mod part_acorn.mod xfs.mod
gcry_rijndael.mod part_amiga.mod xnu.mod
gcry_rmd160.mod part_apple.mod xnu_uuid.mod
gcry_rsa.mod part_bsd.mod xnu_uuid_test.mod
gcry_seed.mod part_dfly.mod xzio.mod
gcry_serpent.mod part_dvh.mod zfs.mod
gcry_sha1.mod part_gpt.mod zfscrypt.mod
gcry_sha256.mod part_msdos.mod zfsinfo.mod
gcry_sha512.mod part_plan.mod
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livecd / # cat /etc/fstab
| Code: | # comments edited out
/dev/sda2 /boot vfat defaults,noatime 0 2
/dev/sda3 none swap sw 0 0
/dev/sda4 / ext4 noatime 0 1
/dev/sda5 / ext4 noatime 0 1
/dev/cdrom /mnt/cdrom auto noauto,ro 0 0
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livecd / # blkid
| Code: | /dev/sda2: UUID="5F0D-F0BD" TYPE="vfat"
/dev/sda3: UUID="05467a8b-5e29-47d9-91b8-a376ce589a10" TYPE="swap"
/dev/sda4: UUID="62888c3d-8112-44d1-86fd-cd8ed32f86f5" TYPE="ext4"
/dev/sda5: UUID="5ad5f364-9b0a-4616-84c9-1f9b971030d0" TYPE="ext4"
livecd / # |
[Moderator edit: added [code] tags to preserve output layout. -Hu] |
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P.Kosunen
Guru
Joined: 21 Nov 2005
Posts: 309
Location: Finland
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| Posted: Thu Apr 05, 2018 11:14 am Post subject: |
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| Use SystemRescueCD for install, it is UEFI and Gentoo compatible. |
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djentoo
n00b
Joined: 17 Oct 2017
Posts: 37
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| Posted: Thu Apr 05, 2018 3:46 pm Post subject: |
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| P.Kosunen wrote: | | Use SystemRescueCD for install, it is UEFI and Gentoo compatible. |
Thank you. This is what I decided to do last night. I am marking this thread as solved because I started over. Everything is going much more smoothly, but taking longer because I went with a larger profile. |
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Installing Gentoo
