| View previous topic :: View next topic |
| Author |
Message |
Amon2501
Tux's lil' helper
Joined: 12 Dec 2018
Posts: 131
|
 Posted: Tue Feb 08, 2022 5:53 pm Post subject: my grub-mkconfig seems to be ignoring 10_linux file |
 |
|
Hello. I have dualboot with windows 7, so i did my grub.cfg about 5 years ago and didn't updated it since then. Today i ran grub-mkconfig with output to test file and compared it with my actual config. Big surprise - NO LINUX. It only detects the windows partition. Here is my original working file (menu entries part)
| Code: | ### BEGIN /etc/grub.d/10_linux ###
menuentry 'Gentoo GNU/Linux' --class gentoo --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-simple-dd84ddf8-0856-4dd6-be78-0fe0d9dc2fd1' {
load_video
insmod gzio
insmod part_msdos
insmod ext2
set root='hd0,msdos2'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos2 --hint-efi=hd0,msdos2 --hint-baremetal=ahci0,msdos2 dd84ddf8-0856-4dd6-be78-0fe0d9dc2fd1
else
search --no-floppy --fs-uuid --set=root dd84ddf8-0856-4dd6-be78-0fe0d9dc2fd1
fi
echo 'Загружается Linux'
linux /boot/vmlinuz root=/dev/sda2 ro
}
submenu 'Дополнительные параметры для Gentoo GNU/Linux' $menuentry_id_option 'gnulinux-advanced-dd84ddf8-0856-4dd6-be78-0fe0d9dc2fd1' {
menuentry 'Gentoo GNU/Linux, предыдущее ядро' --class gentoo --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.4.39-gentoo-advanced-dd84ddf8-0856-4dd6-be78-0fe0d9dc2fd1' {
load_video
insmod gzio
insmod part_msdos
insmod ext2
set root='hd0,msdos2'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos2 --hint-efi=hd0,msdos2 --hint-baremetal=ahci0,msdos2 dd84ddf8-0856-4dd6-be78-0fe0d9dc2fd1
else
search --no-floppy --fs-uuid --set=root dd84ddf8-0856-4dd6-be78-0fe0d9dc2fd1
fi
echo 'Загружается Linux old'
linux /boot/vmlinuz.old root=/dev/sda2 ro
}
}
### 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 ###
menuentry 'Windows 7 (loader) (на /dev/sda1)' --class windows --class os $menuentry_id_option 'osprober-chain-545DAB33A275F517' {
insmod part_msdos
insmod ntfs
set root='hd0,msdos1'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos1 --hint-efi=hd0,msdos1 --hint-baremetal=ahci0,msdos1 545DAB33A275F517
else
search --no-floppy --fs-uuid --set=root 545DAB33A275F517
fi
parttool ${root} hidden-
chainloader +1
} |
And here is what i ve got in that newer test cfg file
| Code: | ### END /etc/grub.d/00_header ###
### BEGIN /etc/grub.d/10_linux ###
### 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 ###
menuentry 'Windows 7 (на /dev/sda1)' --class windows --class os $menuentry_id_option 'osprober-chain-545DAB33A275F517' {
insmod part_msdos
insmod ntfs
set root='hd0,msdos1'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos1 --hint-efi=hd0,msdos1 --hint-baremetal=ahci0,msdos1 545DAB33A275F517
else
search --no-floppy --fs-uuid --set=root 545DAB33A275F517
fi
parttool ${root} hidden-
chainloader +1
}
### END /etc/grub.d/30_os-prober ###
|
See? No linux entries at all! But why? How can i make it to detect Linux too? |
|
| Back to top |
|
 |
alamahant
Advocate
Joined: 23 Mar 2019
Posts: 3879
|
| Posted: Tue Feb 08, 2022 6:21 pm Post subject: |
|
|
You have
| Code: |
linux /boot/vmlinuz root=/dev/sda2 ro
|
Plz rename your kernel to vmlinuz-<version> and your initrd if any to initramfs-<version>.img
In <version> you can use any string you like.
But preferably plz use the actual(numeric) version of the kernel which you can see by
then update grub.
For some more detail plz see
| Code: |
globs="$GRUB_LINUX_KERNEL_GLOBS"
167 [ -z "$globs" ] && case "x$machine" in
168 xi?86 | xx86_64)
169 globs="/boot/vmlinuz-* /vmlinuz-* /boot/kernel-*"
170 ;;
171 *)
172 globs="/boot/vmlinuz-* /boot/vmlinux-* /vmlinuz-* /vmlinux-* /boot/kernel-*"
173 ;;
174 esac
|
and
| Code: |
for i in "initrd.img-${version}" "initrd-${version}.img" "initrd-${version}.gz" \
"initrd-${version}" "initramfs-${version}.img" \
"initrd.img-${alt_version}" "initrd-${alt_version}.img" \
"initrd-${alt_version}" "initramfs-${alt_version}.img" \
"initramfs-genkernel-${version}" \
"initramfs-genkernel-${alt_version}" \
"initramfs-genkernel-${GENKERNEL_ARCH}-${version}" \
"initramfs-genkernel-${GENKERNEL_ARCH}-${alt_version}"; do
if test -e "${dirname}/${i}" ; then
initrd_real="${i}"
break
fi
done
|
These are the naming formats for kernel and initrd that grub will recognize as legitimate
according to
/etc/grub.d/10_linux
_________________
 |
|
| Back to top |
|
|
Amon2501
Tux's lil' helper
Joined: 12 Dec 2018
Posts: 131
|
| Posted: Tue Feb 08, 2022 7:17 pm Post subject: |
|
|
| alamahant wrote: | You have
| Code: |
linux /boot/vmlinuz root=/dev/sda2 ro
|
Plz rename your kernel to vmlinuz-<version> and your initrd if any to initramfs-<version>.img
In <version> you can use any string you like.
But preferably plz use the actual(numeric) version of the kernel which you can see by |
I didnt changed the name of a kernel file myself. That name was generated by "make bzImage && make install" commands every time i bult it from the gentoo-sources package. Also im okay with just vmlinuz and vmlinux.old since i dont want to keep more than one recent and one "backup" kernels and only in case something goes wrong.
Also i dont have initrd because its just the root ext4 partition not RAID nor SSD.
then update grub.
For some more detail plz see
| Code: |
globs="$GRUB_LINUX_KERNEL_GLOBS"
167 [ -z "$globs" ] && case "x$machine" in
168 xi?86 | xx86_64)
169 globs="/boot/vmlinuz-* /vmlinuz-* /boot/kernel-*"
170 ;;
171 *)
172 globs="/boot/vmlinuz-* /boot/vmlinux-* /vmlinuz-* /vmlinux-* /boot/kernel-*"
173 ;;
174 esac
|
and
| Code: |
for i in "initrd.img-${version}" "initrd-${version}.img" "initrd-${version}.gz" \
"initrd-${version}" "initramfs-${version}.img" \
"initrd.img-${alt_version}" "initrd-${alt_version}.img" \
"initrd-${alt_version}" "initramfs-${alt_version}.img" \
"initramfs-genkernel-${version}" \
"initramfs-genkernel-${alt_version}" \
"initramfs-genkernel-${GENKERNEL_ARCH}-${version}" \
"initramfs-genkernel-${GENKERNEL_ARCH}-${alt_version}"; do
if test -e "${dirname}/${i}" ; then
initrd_real="${i}"
break
fi
done
|
These are the naming formats for kernel and initrd that grub will recognize as legitimate
according to
/etc/grub.d/10_linux[/quote]
But that working cfg file also was generated someday by grub-mkconfig, not written by me. Was anything changed in it? |
|
| Back to top |
|
|
alamahant
Advocate
Joined: 23 Mar 2019
Posts: 3879
|
| Posted: Tue Feb 08, 2022 7:23 pm Post subject: |
|
|
Try renaming it plz and check if grub creates an entry..
I dont know if something changed.Probably-- since your grub.cfg was super old
Try renaming it to vmlinuz-gentoo or anything at least.
If you dont i think grub will ignore it.
Or you can modify the etc/grub.d/10_linux file.
or MUCH BETTER use 40_custom file
to create a static custom entry.
by appending
| Code: |
menuentry 'Gentoo GNU/Linux' --class gentoo --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-simple-dd84ddf8-0856-4dd6-be78-0fe0d9dc2fd1' {
load_video
insmod gzio
insmod part_msdos
insmod ext2
set root='hd0,msdos2'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos2 --hint-efi=hd0,msdos2 --hint-baremetal=ahci0,msdos2 dd84ddf8-0856-4dd6-be78-0fe0d9dc2fd1
else
search --no-floppy --fs-uuid --set=root dd84ddf8-0856-4dd6-be78-0fe0d9dc2fd1
fi
echo 'Загружается Linux'
linux /boot/vmlinuz root=/dev/sda2 ro
}
|
to it.
_________________
|
|
| Back to top |
|
|
Amon2501
Tux's lil' helper
Joined: 12 Dec 2018
Posts: 131
|
| Posted: Tue Feb 08, 2022 8:00 pm Post subject: |
|
|
| Thanks, that entry in 40_custom worked. The bad thing that it puts Gentoo entry after the windows now. which means windows will be loaded by default as the first one in list, but i think i can just copy and paste it manually back. |
|
| Back to top |
|
|
Goverp
Advocate
Joined: 07 Mar 2007
Posts: 2014
|
| Posted: Tue Feb 08, 2022 8:11 pm Post subject: |
|
|
| Amon2501 wrote: | | Thanks, that entry in 40_custom worked. The bad thing that it puts Gentoo entry after the windows now. which means windows will be loaded by default as the first one in list, but i think i can just copy and paste it manually back. |
And while you are editing it, you could also change the name to use "vmlinuz" without any version number, and ditto for the file, then it will find whatever "make install" creates.
You can also duplicate the entire entry but for "vmlinuz.old",, because I think you're find "make install" has moved the previous kernel to that name.
IMHO grub-mkconfig is a heap of crode.
_________________
Greybeard |
|
| Back to top |
|
|
Amon2501
Tux's lil' helper
Joined: 12 Dec 2018
Posts: 131
|
| Posted: Tue Feb 08, 2022 8:11 pm Post subject: |
|
|
| Amon2501 wrote: | | Thanks, that entry in 40_custom worked. The bad thing that it puts Gentoo entry after the windows now. which means windows will be loaded by default as the first one in list, but i think i can just copy and paste it manually back. |
Also yes it started to recognise kernel afteri copied vmlinuz to vmlinuz-blahblah in /boot. The question now is Why "make install" produces only vmlinuz file instead of vmlinuz-something. As far as i could remember it was always named that way and never vmlinuz-<version> |
|
| Back to top |
|
|
alamahant
Advocate
Joined: 23 Mar 2019
Posts: 3879
|
| Posted: Tue Feb 08, 2022 8:12 pm Post subject: |
|
|
Or use
| Code: |
GRUB_DEFAULT=1 #or 2
|
in /etc/default/grub
_________________
|
|
| Back to top |
|
|
Amon2501
Tux's lil' helper
Joined: 12 Dec 2018
Posts: 131
|
| Posted: Tue Feb 08, 2022 8:19 pm Post subject: |
|
|
| alamahant wrote: | Or use
in /etc/default/grub |
That`s exactly why i found that strange behaviour and started that topic. I wanted to play a Windows game, so change the default boot to Windows for a while. Thanks goodness i didnt just "grub-mkconfig -o /boot/grub/grub.cfg" without checking it first.
PS BTW will GRUB_DEFAULT=saved work as it does in Fedora for example. |
|
| Back to top |
|
|
mike155
Advocate
Joined: 17 Sep 2010
Posts: 4438
Location: Frankfurt, Germany
|
| Posted: Tue Feb 08, 2022 9:05 pm Post subject: |
|
|
I don't use grub-mkconfig at all. I have a short and handmade grub.cfg:
| Code: | timeout=5
default=0
menu_color_normal=white/blue
menuentry 'Linux' {
set root='hd0,msdos1'
linux /vmlinuz root=/dev/nvme0n1p2 ro init=/usr/lib/systemd/systemd acpi_enforce_resources=lax
}
|
|
|
| Back to top |
|
|
Goverp
Advocate
Joined: 07 Mar 2007
Posts: 2014
|
| Posted: Wed Feb 09, 2022 9:23 am Post subject: |
|
|
| Amon2501 wrote: | ...
Also yes it started to recognise kernel afteri copied vmlinuz to vmlinuz-blahblah in /boot. The question now is Why "make install" produces only vmlinuz file instead of vmlinuz-something. As far as i could remember it was always named that way and never vmlinuz-<version> |
"make install" ends up running /sbin/installkernel, which copies vmlinuz, .config and System.map to /boot. On my system, I get vmlinz-5.16.7-gentoo and so forth, with symlinks "vmlinuz" and "vmlinuz.old". If your /boot is on a vfat or suchlike filesystem (e.g. in the EFI partition) that doesn't support symlinks, perhaps the symlink process is fouling things up.
Alternatively, perhaps /sbin/installkernel isn't the Gentoo default which claims to be copyright 2009 from Debian. Mine seems to come from sys-kernel/installkernel-gentoo, but there's a different version in sys-kernel/installkernel-systemd-boot, and presumably another (broken) one in sys-apps/debianutils, according to the Portage file list.
_________________
Greybeard |
|
| Back to top |
|
|
figueroa
Advocate
Joined: 14 Aug 2005
Posts: 2965
Location: Edge of marsh USA
|
| Posted: Fri Feb 11, 2022 5:45 am Post subject: |
|
|
Goverp -- I knew there was an underlying reason why I don't run "make install" and instead hand jam my kernel files after building, i.e.:
| Code: | $ ls -1 /boot/*5.10.93*
/boot/config-5.10.93-gentoo
/boot/kernel-5.10.93-gentoo
/boot/System.map-5.10.93-gentoo |
I copy and paste the version from number the last line of the "make" standard output to avoid typos, and then update grub.cfg. I also make a symlink vmlinuz pointing to the new kernel in case I would need to boot with grub from a commandline. I personally prefer the name kernel to vmlinuz just because it's plain English and that's my native language. I do the whole kernel compile of gentoo-sources manually because if I didn't, I'd forget how to do it. I got my (bad) habits from a now ancient version of the gentoo-handbook.
I do miss the old grub because editing gbub.conf used to be muscle memory and I don't seem to be getting the same easy hang of editing /boot/grub/custom.cfg, but I do it or I wouldn't learn new things.
_________________
Andy Figueroa
hp pavilion hpe h8-1260t/2AB5; spinning rust x3
i7-2600 @ 3.40GHz; 16 gb; Radeon HD 7570
amd64/23.0/split-usr/desktop (stable), OpenRC, -systemd -pulseaudio -uefi |
|
| Back to top |
|
|
Goverp
Advocate
Joined: 07 Mar 2007
Posts: 2014
|
| Posted: Fri Feb 11, 2022 9:26 am Post subject: |
|
|
You might like my "universal" grub.cfg that has a base menu for booting from vmlinuz, vmlinuz.new and vmlinuz.old symlinks, and a submenu that lists all vmlinuz-n.nn.nn kernels sorted by version. I don't recall if it handles initramfs/initrd.
_________________
Greybeard |
|
| Back to top |
|
|
pjp
Administrator
Joined: 16 Apr 2002
Posts: 20067
|
| Posted: Fri Feb 11, 2022 5:16 pm Post subject: |
|
|
| Goverp wrote: | | Amon2501 wrote: | ...
Also yes it started to recognise kernel afteri copied vmlinuz to vmlinuz-blahblah in /boot. The question now is Why "make install" produces only vmlinuz file instead of vmlinuz-something. As far as i could remember it was always named that way and never vmlinuz-<version> |
"make install" ends up running /sbin/installkernel, which copies vmlinuz, .config and System.map to /boot. On my system, I get vmlinz-5.16.7-gentoo and so forth, with symlinks "vmlinuz" and "vmlinuz.old". If your /boot is on a vfat or suchlike filesystem (e.g. in the EFI partition) that doesn't support symlinks, perhaps the symlink process is fouling things up.
Alternatively, perhaps /sbin/installkernel isn't the Gentoo default which claims to be copyright 2009 from Debian. Mine seems to come from sys-kernel/installkernel-gentoo, but there's a different version in sys-kernel/installkernel-systemd-boot, and presumably another (broken) one in sys-apps/debianutils, according to the Portage file list. |
You can also make your own.
I recently discovered the INSTALLKERNEL variable: | https://www.kernel.org/doc/html/latest/kbuild/kbuild.html: | INSTALLKERNEL
Install script called when using “make install”. The default name is “installkernel”.
The script will be called with the following arguments:
$1 - kernel version
$2 - kernel image file
$3 - kernel map file
$4 - default install path (use root directory if blank)
The implementation of “make install” is architecture specific and it may differ from the above.
INSTALLKERNEL is provided to enable the possibility to specify a custom installer when cross compiling a kernel. |
_________________
Quis separabit? Quo animo? |
|
| Back to top |
|
|
|
Other Things Gentoo
