On 9 Mar 2025 at 5:37, Michael D. Setzer II via user wrote:
To: Community support for Fedora users
<users@xxxxxxxxxxxxxxxxxxxxxxx>
Date sent: Sun, 09 Mar 2025 05:37:13 +1000
Subject: Re: getting core dump with grub2-mkconfig on
systems with windows7
partitions??
Priority: normal
Send reply to: mikes@xxxxxxxx,
Community support for Fedora users
<users@xxxxxxxxxxxxxxxxxxxxxxx>
From: "Michael D. Setzer II via users"
<users@xxxxxxxxxxxxxxxxxxxxxxx>
Copies to: Camina Shell
<fedoraproject.5cqga@xxxxxxxxxxx>,
"Michael D. Setzer II" <mikes@xxxxxxxx>
> On 8 Mar 2025 at 13:53, Camina Shell via users wrote:
>
> Subject: Re: getting core dump with grub2-mkconfig on
> systems with windows7
> partitions??
> To: users@xxxxxxxxxxxxxxxxxxxxxxx
> Date sent: Sat, 08 Mar 2025 13:53:50 -0000
> Send reply to: Community support for Fedora users
> <users@xxxxxxxxxxxxxxxxxxxxxxx>
> From: Camina Shell via users
> <users@xxxxxxxxxxxxxxxxxxxxxxx>
> Copies to: Camina Shell
> <fedoraproject.5cqga@xxxxxxxxxxx>
>
> > Running os-prober on its own also reveals this seg fault.
> >
> > ❯ sudo os-prober
> > /dev/nvme2n1p1@/efi/Microsoft/Boot/bootmgfw.efi:Windows Boot Manager:Windows:efi
> > /usr/libexec/os-probes/50mounted-tests: line 186: 224295 Segmentation fault (core dumped) grub2-mount "$partition" "$tmpmnt" 2> /dev/null
> > --
>
> Did a test with grub2-probe and it gives same Segmentation fault
> on nfts partitions. Note book had 9 partitions.
>
> for a in $(cat /proc/partitions | grep sda. | cut -b26-40); do echo -n
> /dev/$a" " ; grub2-probe -d /dev/$a; done
> /dev/sda1 Segmentation fault (core dumped)
> /dev/sda2 Segmentation fault (core dumped)
> /dev/sda3 Segmentation fault (core dumped)
> /dev/sda4 grub2-probe: error: cannot find a GRUB drive for
> /dev/sda4. Check your device.map.
> /dev/sda5 ext2
> /dev/sda6 grub2-probe: error: ../grub-core/kern/fs.c:123:unknown
> filesystem.
> /dev/sda7 ext2
> /dev/sda8 ext2
> /dev/sda9 ext2
>
> Also, noticed /etc/filesystems and /proc/filesystems don't have ntfs??
>
> Partitions on this notebook.
>
> /dev/sda1 2048 39847935 39845888 19G 27 Hidden
> NTFS WinRE
> /dev/sda2 * 39847936 40052735 204800 100M 7
> HPFS/NTFS/exFAT
> /dev/sda3 40052736 379084799 339032064 161.7G 7
> HPFS/NTFS/exFAT
> /dev/sda4 379084800 1953523711 1574438912 750.8G 5
> Extended
> /dev/sda5 714633216 716730367 2097152 1G 83 Linux
> /dev/sda6 716732416 724756479 8024064 3.8G 82 Linux
> swap / Solaris
> /dev/sda7 724758528 835887103 111128576 53G 83 Linux
> /dev/sda8 835889152 1953523711 1117634560 532.9G 83
> Linux
> /dev/sda9 379086848 714631167 335544320 160G 83 Linux
>
Actually rebooted machine to check what windows option was
showing, and found that there was no option to select windows
from the grub2 menu??
Looking at grub.cfg found.
### BEGIN /etc/grub.d/30_os-prober ###
### END /etc/grub.d/30_os-prober ###
Then manually added this to have it have an option for windows?
The worked fine to boot the windows, but will require manually
updating grub.cfg after running a grub2-mkconfig or other similar
process.
### BEGIN /etc/grub.d/30_os-prober ###
menuentry "Windows 7" {
insmod ntfs
set root=(hd0,2) # Modify this to match your Windows partition
chainloader +1
}
### END /etc/grub.d/30_os-prober ###
Note both machines had Windows 7 from Acer installed, and don't
seem to be be EFI setup, so just the regular ntldr setup.
Hadn't booted machine to Windows 7 for a long time, but had
worked fine in past?
So, issue is bigger than an error message that does make a
difference?
Thanks.
>
>
>
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>
> +------------------------------------------------------------+
> Michael D. Setzer II - Computer Science Instructor (Retired)
> mailto:mikes@xxxxxxxx
> mailto:msetzerii@xxxxxxxxx
> mailto:msetzerii@xxxxxxx
> Guam - Where America's Day Begins
> G4L Disk Imaging Project maintainer
> http://sourceforge.net/projects/g4l/
> +------------------------------------------------------------+
>
>
>
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+------------------------------------------------------------+
Michael D. Setzer II - Computer Science Instructor (Retired)
mailto:mikes@xxxxxxxx
mailto:msetzerii@xxxxxxxxx
mailto:msetzerii@xxxxxxx
Guam - Where America's Day Begins
G4L Disk Imaging Project maintainer
http://sourceforge.net/projects/g4l/
+------------------------------------------------------------+
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