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grub-install: error: cannot find a device for /boot/grub

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badtyprr
n00b
n00b

Joined: 11 Aug 2024
Posts: 6

Posted: Sun Aug 11, 2024 8:30 am Post subject: grub-install: error: cannot find a device for /boot/grub

I'm going through the Gentoo AMD64 Handbook, and I'm running across an error attempting to install GRUB as the secondary bootloader.

Code:

root # grub-install --efi-directory=/efi
Installing for x86_64-efi platform.
grub-install: error: cannot find a device for /boot/grub (is /dev mounted?).

/dev was mounted with:

Code:

root #mount --types proc /proc /mnt/gentoo/proc
root #mount --rbind /sys /mnt/gentoo/sys
root #mount --make-rslave /mnt/gentoo/sys
root #mount --rbind /dev /mnt/gentoo/dev
root #mount --make-rslave /mnt/gentoo/dev
root #mount --bind /run /mnt/gentoo/run
root #mount --make-slave /mnt/gentoo/run

/efi was mounted with:

Code:

root #chroot /mnt/gentoo /bin/bash
root #source /etc/profile
root #export PS1="(chroot) ${PS1}"
root #mkdir /efi
root #mount /dev/nvme1n1p1 /efi

What could I be doing wrong here?

sMueggli
Guru
Guru

Joined: 03 Sep 2022
Posts: 501

Posted: Sun Aug 11, 2024 8:47 am Post subject:

Please show all commands that you have executed.

badtyprr
n00b
n00b

Joined: 11 Aug 2024
Posts: 6

Posted: Sun Aug 11, 2024 9:02 am Post subject:

sMueggli wrote:

Please show all commands that you have executed.

It's a bit messy and incomplete (my installation got interrupted after disk partitioning), but here's the history:

Code:

1 exit
2 exit
3 source /etc/profile
4 export PS1="(chroot) ${PS1}"
5 mkdir /efi
6 lsblk -l
7 fdisk nvme1n1
8 fdisk /dev/nvme1
9 fdisk /dev/nvme1n1
10 mount /dev/nvme1n1p1 /efi
11 emerge-webrsync
12 emerge --ask --verbose --oneshot app-portage/mirrorselect
13 mirrorselect -i -o >> /etc/portage/make.conf
14 emerge --sync
15 eselect news list
16 eselect news read
17 eselect profile list
18 eselect profile list | grep kde
19 eselect profile list | grep plasma
20 eselect profile set 27
21 eselect profile list
22 eselect profile list | grep 27
23 emerge --info | grep ^USE
24 nano /etc/portage/make.conf
25 emerge --info | grep ^USE | grep amd
26 emerge --ask --oneshot app-portage/cpuid2cpuflags
27 cpuid2cpuflags
28 lspci | grep -i VGA
29 echo "*/* $(cpuid2cpuflags)" > /etc/portage/package.use/00cpu-flags
30 nano /etc/portage/make.conf
31 emerge --ask sys-kernel/linux-firmware
32 portageq envvar ACCEPT_LICENSE
33 mkdir /etc/portage/package.license
34 touch /etc/portage/package.license/kernel
35 echo "sys-kernel/linux-firmware linux-fw-redistributable" | tee /etc/portage/package.license/kernel
36 echo "sys-firmware/intel-microcode intel-ucode" | tee /etc/portage/package.license/kernel
37 nano /etc/portage/package.license/kernel
38 nano /etc/portage/package.license/kernel
39 emerge --ask sys-kernel/linux-firmware
40 emerge --ask --verbose --update --deep --newuse @world
41 emerge --ask --pretend --depclean
42 ls -l /usr/share/zoneinfo
43 ls -l /usr/share/zoneinfo | US
44 ls -l /usr/share/zoneinfo | grep US
45 ls -l /usr/share/zoneinfo/US
46 ls -l /usr/share/zoneinfo/US/Pacific
47 echo "US/Pacific" > /etc/timezone
48 emerge --config sys-libs/timezone-data
49 nano /etc/locale.gen
50 nano /etc/locale.gen
51 locale-gen
52 eselect locale list
53 eselect locale set 2
54 env-update && source /etc/profile && export PS1="(chroot) ${PS1}"
55 emerge --ask sys-kernel/linux-firmware
56 emerge --ask sys-firmware/sof-firmware
57 emerge --ask sys-firmware/intel-microcode
58 dracut
59 nano /etc/portage/package.use/installkernel
60 emerge --ask sys-kernel/gentoo-kernel
61 emerge --ask @module-rebuild
62 emerge --config sys-kernel/gentoo-kernel
63 emerge --ask sys-kernel/installkernel
64 emerge --ask sys-kernel/gentoo-sources
65 eselect kernel list
66 eselect kernel set 2
67 ls -l /usr/src/linux
68 nano /etc/portage/package.use/installkernel
69 nano /etc/portage/package.use/installkernel
70 nano /etc/portage/package.use/installkernel
71 ls /boot/initramfs/*
72 ls /boot/initramfs*
73 emerge --ask dev-libs/openssl sys-boot pesign sys-boot/mokutil
74 emerge --ask dev-libs/openssl sys-boot/pesign sys-boot/mokutil
75 find /lib/modules/6.6* -type f -iname '*.o' -or -iname '*.ko' | less
76 blkid
77 nano /etc/fstab
78 nano /etc/fstab
79 echo tux
80 echo siberian > /etc/hostname
81 emerge --ask net-misc/dhcpd
82 emerge --ask net-misc/dhcpcd
83 rc-update add dhcpcd default
84 rc-service dhcpcd start
85 rc-service dhcpcd stop
86 rc-service dhcpcd start
87 arp -a
88 ssh 192.168.50.126
89 nano /etc/hosts
90 nmap
91 emerge --ask net-analyzer/nmap
92 eselect news read
93 emerge --info net-analyzer/nmap
94 nmap --version
95 nmap -p 22 --open 192.168.50.0/24
96 ssh 192.168.50.115
97 ssh 192.168.50.115
98 ssh strieu@192.168.50.115
99 nano /etc/hosts
100 ping burmese
101 nano /etc/hosts
102 ping burmese
103 passwd
104 nano /etc/rc.conf
105 nano /etc/conf.d/keymaps
106 nano /etc/conf.d/keymaps
107 nano /etc/conf.d/hwclock
108 emerge --ask app-admin/sysklogd
109 rc-update add sysklogd default
110 emerge --ask sys-process/bcron
111 cpuid2cpuflags
112 nano /etc/portage/package.use/00cpu-flags
113 emerge --ask sys-apps/mlocate
114 rc-update add sshd default
115 emerge --ask app-shells/bash-completion
116 emerge --ask net-misc/chrony
117 rc-update add chronyd default
118 emerge --ask sys-fs/xfsprogs
119 emerge --ask sys-fs/dosfstools
120 emerge --ask sys-block/io-scheduler-udev-rules
121 emerge --ask net-misc/dhcpcd
122 emerge --ask net-wireless/iw net-wireless/wpa_supplicant
123 nano /etc/portage/make.conf
124 emerge --ask --verbose sys-boot/grub
125 eselect news read
126 emerge --ask --update --newuse --verbose sys-boot/grub
127 mount
128 mount | grep efi
129 grub-install --efi-directory=/efi
130 exit
131 fg
132 fg
133 nano /etc/fstab
134 exit
135 grub-install --efi-directory=/efi
136 mount
137 mount | grep dev
138 mount --rbind /dev /mnt/gentoo/dev
139 exit
140 source /etc/profile
141 export PS1="(chroot) ${PS1}"
142 grub-install --efi-directory=/efi
143 mount
144 mount | grep /dev
145 grub-install --efi-directory=/efi
146 ls /boot
147 ls /boot/grub
148 ls /boot -l
149 mount --rbind /dev /dev
150 grub-install --efi-directory=/efi
151 mount
152 df -l
153 grub-install --target=X86_64-efi --efi-directory=/efi
154 grub-install --efi-directory=/efi
155 grub-install --efi-directory=/efi
156 mount
157 lsblk
158 mount | grep /boot
159 lsblk
160 lsblk -H
161 lsblk
162 lsblk /dev/nvme1n1
163 history
164 history > history.txt

elover
Apprentice

Joined: 20 Nov 2019
Posts: 170
Location: Spain

Posted: Sun Aug 11, 2024 10:54 am Post subject:

USE=grub emerge sys-kernel/installkernel emerge --config gentoo-kernel

kimchi_sg
Advocate

Joined: 26 Nov 2004
Posts: 3038

Posted: Sun Aug 11, 2024 2:16 pm Post subject:

badtyprr wrote:

(my installation got interrupted after disk partitioning)

When resuming after interruption, you will have to repeat the mount commands.

In any case, you can confirm whether /dev is now mounted just by

Code:

# mount

Among the output should be

Code:

devtmpfs on /dev type devtmpfs (rw,nosuid,noexec,relatime,size=10240k,nr_inodes=4052318,mode=755,inode64)
mqueue on /dev/mqueue type mqueue (rw,nosuid,nodev,noexec,relatime)
devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000)
shm on /dev/shm type tmpfs (rw,nosuid,nodev,noexec,relatime,inode64)

badtyprr
n00b
n00b

Joined: 11 Aug 2024
Posts: 6

Posted: Sun Aug 11, 2024 2:40 pm Post subject:

kimchi_sg wrote:

badtyprr wrote:

(my installation got interrupted after disk partitioning)

When resuming after interruption, you will have to repeat the mount commands.

In any case, you can confirm whether /dev is now mounted just by

Code:

# mount

Among the output should be

Code:

Thanks, yes, I did make sure the mount commands were done again and confirmed /dev mounts were there. Here's the output of `mount`:

Code:

(chroot) livecd / # mount
/proc on /proc type proc (rw,relatime)
devtmpfs on /dev type devtmpfs (rw,nosuid,noexec,size=10240k,nr_inodes=4094122,mode=755,inode64)
devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000)
tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev,noexec,inode64)
mqueue on /dev/mqueue type mqueue (rw,nosuid,nodev,noexec,relatime)
tmpfs on /run type tmpfs (rw,nosuid,nodev,noexec,mode=755,inode64)
/dev/nvme1n1p1 on /efi type vfat (rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=ascii,shortname=mixed,errors=remount-ro)
devtmpfs on /dev type devtmpfs (rw,nosuid,noexec,size=10240k,nr_inodes=4094122,mode=755,inode64)
devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000)
tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev,noexec,inode64)
mqueue on /dev/mqueue type mqueue (rw,nosuid,nodev,noexec,relatime)
sysfs on /sys type sysfs (rw,nosuid,nodev,noexec,relatime)
securityfs on /sys/kernel/security type securityfs (rw,nosuid,nodev,noexec,relatime)
debugfs on /sys/kernel/debug type debugfs (rw,nosuid,nodev,noexec,relatime)
configfs on /sys/kernel/config type configfs (rw,nosuid,nodev,noexec,relatime)
pstore on /sys/fs/pstore type pstore (rw,nosuid,nodev,noexec,relatime)
efivarfs on /sys/firmware/efi/efivars type efivarfs (rw,nosuid,nodev,noexec,relatime)
none on /sys/fs/cgroup type cgroup2 (rw,nosuid,nodev,noexec,relatime,nsdelegate)
devtmpfs on /dev type devtmpfs (rw,nosuid,noexec,size=10240k,nr_inodes=4094122,mode=755,inode64)
devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000)
tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev,noexec,inode64)
mqueue on /dev/mqueue type mqueue (rw,nosuid,nodev,noexec,relatime)

badtyprr
n00b
n00b

Joined: 11 Aug 2024
Posts: 6

Posted: Sun Aug 11, 2024 2:51 pm Post subject:

elover wrote:

USE=grub emerge sys-kernel/installkernel

emerge --config gentoo-kernel

Thanks for the configuration advice. I am sorry, but I am new to the USE parameter and still reading through the documentation.

Does this mean I edit the /etc/portage/package.use/installkernel file and add the USE parameter?

Code:

USE=grub emerge sys-kernel/installkernel

This is the existing package.use/installkernel file:

Code:

sys-kernel/installkernel dracut
sys-kernel/installkernel grub

Last edited by badtyprr on Sun Aug 11, 2024 2:59 pm; edited 1 time in total

kimchi_sg
Advocate

Joined: 26 Nov 2004
Posts: 3038

Posted: Sun Aug 11, 2024 2:52 pm Post subject:

badtyprr wrote:

Thanks, yes, I did make sure the mount commands were done again and confirmed /dev mounts were there. Here's the output of `mount`:

Code:

Aha. Did you forget to mount your root partition to /mnt/gentoo ?

badtyprr
n00b
n00b

Joined: 11 Aug 2024
Posts: 6

Posted: Sun Aug 11, 2024 3:09 pm Post subject:

kimchi_sg wrote:

badtyprr wrote:

Thanks, yes, I did make sure the mount commands were done again and confirmed /dev mounts were there. Here's the output of `mount`:

Code:

Aha. Did you forget to mount your root partition to /mnt/gentoo ?

AHHHHH.

Root partition mounted. This painful installation process is teaching me to be more aware of the filesystem than I was before.

Code:

(chroot) livecd / # grub-install --efi-directory=/efi
bash: grub-install: command not found
(chroot) livecd / # mount
mount: failed to read mtab: No such file or directory

Am I supposed to remount the other partitions after mounting the root partition? Now, it appears that grub-install can't even be found (or mount). But mount points appear to be there:

Code:

livecd /home/gentoo # mount
proc on /proc type proc (rw,nosuid,nodev,noexec,relatime)
sysfs on /sys type sysfs (rw,nosuid,nodev,noexec,relatime)
devtmpfs on /dev type devtmpfs (rw,nosuid,noexec,size=10240k,nr_inodes=4094122,mode=755,inode64)
devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000)
tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev,noexec,inode64)
tmpfs on /run type tmpfs (rw,nosuid,nodev,noexec,mode=755,inode64)
/dev/sdc3 on /run/initramfs/live type hfsplus (ro,relatime,umask=22,uid=0,gid=0,nls=utf8)
/dev/loop0 on /run/rootfsbase type squashfs (ro,relatime,errors=continue)
LiveOS_rootfs on / type overlay (rw,relatime,lowerdir=/run/rootfsbase,upperdir=/run/overlayfs,workdir=/run/ovlwork,uuid=on)
securityfs on /sys/kernel/security type securityfs (rw,nosuid,nodev,noexec,relatime)
debugfs on /sys/kernel/debug type debugfs (rw,nosuid,nodev,noexec,relatime)
configfs on /sys/kernel/config type configfs (rw,nosuid,nodev,noexec,relatime)
pstore on /sys/fs/pstore type pstore (rw,nosuid,nodev,noexec,relatime)
efivarfs on /sys/firmware/efi/efivars type efivarfs (rw,nosuid,nodev,noexec,relatime)
none on /sys/fs/cgroup type cgroup2 (rw,nosuid,nodev,noexec,relatime,nsdelegate)
mqueue on /dev/mqueue type mqueue (rw,nosuid,nodev,noexec,relatime)
binfmt_misc on /proc/sys/fs/binfmt_misc type binfmt_misc (rw,nosuid,nodev,noexec,relatime)
tmpfs on /run/user/1000 type tmpfs (rw,nosuid,nodev,relatime,size=3280300k,nr_inodes=820075,mode=700,uid=1000,gid=100,inode64)
portal on /run/user/1000/doc type fuse.portal (rw,nosuid,nodev,relatime,user_id=1000,group_id=100)
/proc on /mnt/gentoo/proc type proc (rw,relatime)
devtmpfs on /mnt/gentoo/dev type devtmpfs (rw,nosuid,noexec,size=10240k,nr_inodes=4094122,mode=755,inode64)
devpts on /mnt/gentoo/dev/pts type devpts (rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000)
tmpfs on /mnt/gentoo/dev/shm type tmpfs (rw,nosuid,nodev,noexec,inode64)
mqueue on /mnt/gentoo/dev/mqueue type mqueue (rw,nosuid,nodev,noexec,relatime)
tmpfs on /mnt/gentoo/run type tmpfs (rw,nosuid,nodev,noexec,mode=755,inode64)
/dev/nvme1n1p1 on /mnt/gentoo/efi type vfat (rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=ascii,shortname=mixed,errors=remount-ro)
devtmpfs on /mnt/gentoo/dev type devtmpfs (rw,nosuid,noexec,size=10240k,nr_inodes=4094122,mode=755,inode64)
devpts on /mnt/gentoo/dev/pts type devpts (rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000)
tmpfs on /mnt/gentoo/dev/shm type tmpfs (rw,nosuid,nodev,noexec,inode64)
mqueue on /mnt/gentoo/dev/mqueue type mqueue (rw,nosuid,nodev,noexec,relatime)
sysfs on /mnt/gentoo/sys type sysfs (rw,nosuid,nodev,noexec,relatime)
securityfs on /mnt/gentoo/sys/kernel/security type securityfs (rw,nosuid,nodev,noexec,relatime)
debugfs on /mnt/gentoo/sys/kernel/debug type debugfs (rw,nosuid,nodev,noexec,relatime)
configfs on /mnt/gentoo/sys/kernel/config type configfs (rw,nosuid,nodev,noexec,relatime)
pstore on /mnt/gentoo/sys/fs/pstore type pstore (rw,nosuid,nodev,noexec,relatime)
efivarfs on /mnt/gentoo/sys/firmware/efi/efivars type efivarfs (rw,nosuid,nodev,noexec,relatime)
none on /mnt/gentoo/sys/fs/cgroup type cgroup2 (rw,nosuid,nodev,noexec,relatime,nsdelegate)
devtmpfs on /mnt/gentoo/dev type devtmpfs (rw,nosuid,noexec,size=10240k,nr_inodes=4094122,mode=755,inode64)
devpts on /mnt/gentoo/dev/pts type devpts (rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000)
tmpfs on /mnt/gentoo/dev/shm type tmpfs (rw,nosuid,nodev,noexec,inode64)
mqueue on /mnt/gentoo/dev/mqueue type mqueue (rw,nosuid,nodev,noexec,relatime)
/dev/nvme1n1p3 on /mnt/gentoo type xfs (rw,relatime,attr2,inode64,logbufs=8,logbsize=32k,noquota)

Edit: I think I know what happened. My progress was lost after the partitioning step because I failed to mount the root partition. Is that right? My progress was overridden by the mount command (partition).

kimchi_sg
Advocate

Joined: 26 Nov 2004
Posts: 3038

Posted: Sun Aug 11, 2024 3:14 pm Post subject:

badtyprr wrote:

Correct, mount /mnt/gentoo must precede all the other mount commands.

badtyprr
n00b
n00b

Joined: 11 Aug 2024
Posts: 6

Posted: Mon Aug 12, 2024 6:51 am Post subject:

kimchi_sg wrote:

badtyprr wrote:

Correct, mount /mnt/gentoo must precede all the other mount commands.

GRUB installed correctly, thank you.

Code:

(chroot) livecd /home # grub-install --efi-directory=/efi
Installing for x86_64-efi platform.
Installation finished. No error reported.

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