LinuxQuestions.org - TW 32 bit has disappeared from own grub menu

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TW 32 bit has disappeared from own grub menu

It happened after

Code:

zypper dup && reboot

Tuesday. Only Memtest remains in TW grub menu.

Multiboot with Debian 12.

/boot is on separate partition because Debian's grub can't access btrfs.

Code:

# cat /etc/fstab

UUID=SDA6_UUID  /                    btrfs  defaults                      0  0

UUID=SDA6_UUID  /var                btrfs  subvol=/@/var                0  0

UUID=SDA6_UUID  /usr/local          btrfs  subvol=/@/usr/local          0  0

UUID=SDA6_UUID  /tmp                btrfs  subvol=/@/tmp                0  0

UUID=SDA6_UUID  /srv                btrfs  subvol=/@/srv                0  0

UUID=SDA6_UUID  /root                btrfs  subvol=/@/root                0  0

UUID=SDA6_UUID  /opt                btrfs  subvol=/@/opt                0  0

UUID=SDA6_UUID  /home                btrfs  subvol=/@/home                0  0

UUID=SDA7_UUID  /boot/grub2  ext4  defaults  0  0

UUID=SDA6_UUID  /.snapshots          btrfs  subvol=/@/.snapshots          0  0

Code:

# mount | egrep -v "cgroup|rpc|tmpfs|^sys|on /dev|on /proc|on /sys|on /var" | sort

/dev/sda6 on /home type btrfs (rw,relatime,space_cache,subvolid=264,subvol=/@/home)

/dev/sda6 on /opt type btrfs (rw,relatime,space_cache,subvolid=263,subvol=/@/opt)

/dev/sda6 on /root type btrfs (rw,relatime,space_cache,subvolid=262,subvol=/@/root)

/dev/sda6 on /.snapshots type btrfs (rw,relatime,space_cache,subvolid=266,subvol=/@/.snapshots)

/dev/sda6 on /srv type btrfs (rw,relatime,space_cache,subvolid=261,subvol=/@/srv)

/dev/sda6 on /tmp type btrfs (rw,relatime,space_cache,subvolid=260,subvol=/@/tmp)

/dev/sda6 on / type btrfs (rw,relatime,space_cache,subvolid=267,subvol=/@/.snapshots/1/snapshot)

/dev/sda6 on /usr/local type btrfs (rw,relatime,space_cache,subvolid=259,subvol=/@/usr/local)

/dev/sda7 on /boot/grub2 type ext4 (rw,relatime)

gvfsd-fuse on /run/user/1000/gvfs type fuse.gvfsd-fuse (rw,nosuid,nodev,relatime,user_id=1000,group_id=100)

I've tried from TW grub command line:

Code:

set root=(hd0,6)

linux (hd0,7)/boot/vmlinuz-6.5.4-1-pae root=/dev/sda6

initrd (hd0,7)/boot/initrd-6.5.4-1-pae

boot

but

Code:

You are in emergency mode. After logging in, type "journalctl -xb" to view system logs, "systemctl reboot" to reboot, or "exit" to continue bootup.

Give root password for maintenance

(or press Control-D to continue)

Reloading system manager configuration.

Starting default.target.

You are in emergency mode. After logging in, type "journalctl -xb" to  view system logs, "systemctl reboot" to reboot, or "exit" to continue  bootup.

Give root password for maintenance

(or press Control-D to continue)

Code:

journalctl -xb

mount: /boot/grub2: unknown filesystem type 'ext4'.

...

boot-grub2.mount: Failed with result 'exit-code'.

Failed to mount /boot/grub2.

Any idea please ?

Post the contents of file /etc/default/grub and directory /etc/grub.d

Quote:

Originally Posted by colorpurple21859 (Post 6483606)

Post the contents of file /etc/default/grub and directory /etc/grub.d

Code:

# If you change this file, run 'grub2-mkconfig -o /boot/grub2/grub.cfg' afterwards to update

# /boot/grub2/grub.cfg.



# Uncomment to set your own custom distributor. If you leave it unset or empty, the default

# policy is to determine the value from /etc/os-release

GRUB_DISTRIBUTOR=

GRUB_DEFAULT=saved

GRUB_HIDDEN_TIMEOUT=0

GRUB_HIDDEN_TIMEOUT_QUIET=true

GRUB_TIMEOUT=8

GRUB_CMDLINE_LINUX_DEFAULT="splash=verbose mitigations=auto"

GRUB_CMDLINE_LINUX=""



# Uncomment to automatically save last booted menu entry in GRUB2 environment



# variable `saved_entry'

# GRUB_SAVEDEFAULT="true"

#Uncomment to enable BadRAM filtering, modify to suit your needs



# This works with Linux (no patch required) and with any kernel that obtains

# the memory map information from GRUB (GNU Mach, kernel of FreeBSD ...)

# GRUB_BADRAM="0x01234567,0xfefefefe,0x89abcdef,0xefefefef"

#Uncomment to disable graphical terminal (grub-pc only)



#GRUB_TERMINAL="gfxterm"

# The resolution used on graphical terminal

#note that you can use only modes which your graphic card supports via VBE



# you can see them in real GRUB with the command `vbeinfo'

GRUB_GFXMODE="auto"

# Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux

# GRUB_DISABLE_LINUX_UUID=true

#Uncomment to disable generation of recovery mode menu entries



# GRUB_DISABLE_RECOVERY="true"

#Uncomment to get a beep at grub start



# GRUB_INIT_TUNE="480 440 1"

GRUB_BACKGROUND=

GRUB_THEME=/boot/grub2/themes/openSUSE/theme.txt

SUSE_BTRFS_SNAPSHOT_BOOTING="true"

GRUB_DISABLE_OS_PROBER="false"

GRUB_ENABLE_CRYPTODISK="n"

GRUB_CMDLINE_XEN_DEFAULT="vga=gfx-1024x768x16"

Code:

ls grub.d/

00_header    10_linux      25_bli            40_custom              90_persistent

00_tuned    20_linux_xen  30_os-prober      41_custom              95_textmode

05_crypttab  20_memtest86+  30_uefi-firmware  80_suse_btrfs_snapshot  README

what is the output of the following:

Code:

sudo tune2fs -l /dev/sda7 | grep metadata_csum_seed

Code:

sudo grub2-probe --target=fs --device /dev/sda7

Quote:

Originally Posted by pan64 (Post 6483730)

it is the same issue as this other thread: https://www.linuxquestions.org/quest...ll-4175733843/

probably this helps: https://bbs.archlinux.org/viewtopic.php?pid=1644982

Problem on archlinux thread was solved after /boot was added to fstab. Here is /boot already present in fstab. ( https://www.linuxquestions.org/quest...6/ )

Quote:

Originally Posted by colorpurple21859 (Post 6483925)

what is the output of the following:

Code:

sudo tune2fs -l /dev/sda7 | grep metadata_csum_seed

Code:

sudo grub2-probe --target=fs --device /dev/sda7

Code:

# tune2fs -l /dev/sda7 | grep metadata_csum_seed

#

Code:

# grub2-probe --target=fs --device /dev/sda7

ext2

#

No issues there, this is the other problem I see based on fstab:

Quote:

UUID=SDA7_UUID /boot/grub2 ext4

and grub prompt command:

Quote:

linux (hd0,7)/boot/vmlinuz-6.5.4-1-pae

You have a /boot on the sda7, however mounting sda7 on /boot/grub2. If you are mounting sda7 on /boot/grub2 the only files that should be in the root of sda7 would be the files that are located in /boot/grub2. If you are attempting to create a boot partition, only the files and directories in /boot without the boot directory should be in sda7 and the mount point in fstab would be

Code:

UUID=SDA7_UUID /boot ext4 ....

and the grub prompt entry would be

Code:

linux (hd0,7)/vmlinuz-6.5.4-1-pae root=/dev/sda6

initrd (hd0,7)/initrd-6.5.4-1-pae

boot

note the '(hd0,7)/vmlinuz ...." the (hd0,7) overrides the previous "set root=(hd0,6)"
Without knowing the contents of sda6 /boot and the contents of sda7, without sda7 mounted to /boot/grub2 can't give any real advice.

Quote:

Originally Posted by colorpurple21859 (Post 6484429)

No issues there, this is the other problem I see based on fstab:

and grub prompt command:
You have a /boot on the sda7, however mounting sda7 on /boot/grub2. If you are mounting sda7 on /boot/grub2 the only files that should be in the root of sda7 would be the files that are located in /boot/grub2. If you are attempting to create a boot partition, only the files and directories in /boot without the boot directory should be in sda7 and the mount point in fstab would be

Code:

UUID=SDA7_UUID /boot ext4 ....

and the grub prompt entry would be

Code:

linux (hd0,7)/vmlinuz-6.5.4-1-pae root=/dev/sda6

initrd (hd0,7)/initrd-6.5.4-1-pae

boot

Quote:

UUID=SDA7_UUID /boot/grub2 ext4

Yes it looks strange but it worked until recently. I had to solve it ASAP and by myself because no one other (on another forum) could help me.

I've corrected it to

Code:

UUID=SDA7_UUID /boot ext4 ....

Problem was that latest kernel was from Oct. 2023 so I've booted TW iso from usb flash disk, chrooted and installed kernel-pae.
TW grub is used now and everything works.

But situation has changed - kernel is only installed in sda6:

Code:

ls -lt /mnt/sda6/boot/

drwxr-xr-x 1 root root      98 12 Mar  08:27 grub2

-rw------- 1 root root 47423255 12 Mar  08:26 initrd-6.7.7-1-pae

lrwxrwxrwx 1 root root      18 12 Mar  07:54 initrd -> initrd-6.7.7-1-pae

lrwxrwxrwx 1 root root      19 12 Mar  07:54 vmlinuz -> vmlinuz-6.7.7-1-pae

lrwxrwxrwx 1 root root      37 12 Mar  07:54 config-6.7.7-1-pae -> ../usr/lib/modules/6.7.7-1-pae/config

lrwxrwxrwx 1 root root      42 12 Mar  07:54 sysctl.conf-6.7.7-1-pae -> ../usr/lib/modules/6.7.7-1-pae/sysctl.conf

lrwxrwxrwx 1 root root      41 12 Mar  07:54 System.map-6.7.7-1-pae -> ../usr/lib/modules/6.7.7-1-pae/System.map

lrwxrwxrwx 1 root root      38 12 Mar  07:54 vmlinuz-6.7.7-1-pae -> ../usr/lib/modules/6.7.7-1-pae/vmlinuz

-rw------- 1 root root 47345854  1 Mar  14:59 initrd-6.7.6-1-default

-rw------- 1 root root 47359066  1 Mar  14:58 initrd-6.7.4-1-default

lrwxrwxrwx 1 root root      41  1 Mar  14:40 config-6.7.6-1-default -> ../usr/lib/modules/6.7.6-1-default/config

lrwxrwxrwx 1 root root      46  1 Mar  14:40 sysctl.conf-6.7.6-1-default -> ../usr/lib/modules/6.7.6-1-default/sysctl.conf

lrwxrwxrwx 1 root root      45  1 Mar  14:40 System.map-6.7.6-1-default -> ../usr/lib/modules/6.7.6-1-default/System.map

lrwxrwxrwx 1 root root      42  1 Mar  14:40 vmlinuz-6.7.6-1-default -> ../usr/lib/modules/6.7.6-1-default/vmlinuz

-rw-r--r-- 1 root root        0  1 Mar  14:40 do_purge_kernels

lrwxrwxrwx 1 root root      41 18 Feb 12:47 config-6.7.4-1-default -> ../usr/lib/modules/6.7.4-1-default/config

lrwxrwxrwx 1 root root      45 18 Feb 12:47 System.map-6.7.4-1-default -> ../usr/lib/modules/6.7.4-1-default/System.map

lrwxrwxrwx 1 root root      46 18 Feb 12:47 sysctl.conf-6.7.4-1-default -> ../usr/lib/modules/6.7.4-1-default/sysctl.conf

lrwxrwxrwx 1 root root      42 18 Feb 12:47 vmlinuz-6.7.4-1-default -> ../usr/lib/modules/6.7.4-1-default/vmlinuz

drwxr-xr-x 1 root root        6  9 Feb 00:58 efi

-rw-r--r-- 1 root root  142796  9 Feb 00:58 memtest.bin

Code:

ls -lt /mnt/sda6/boot/grub2

-rw------- 1 root root 14011 12 Mar  08:27 grub.cfg

drwxr-xr-x 1 root root  396 12 Mar  08:27 locale

drwxr-xr-x 1 root root  6536 12 Mar  08:27 i386-pc

drwxr-xr-x 1 root root    16 12 Mar  08:20 themes

drwxr-xr-x 1 root root    22 29 Feb  2020 fonts

-rw-r--r-- 1 root root    30 29 Feb  2020 device.map

-rw-r--r-- 1 root root  1024 29 Feb  2020 grubenv

(called from another distro)

No *6.7.7-1* kernel files in sda7.