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lhuge
n00b
Joined: 28 Jan 2018
Posts: 9
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 Posted: Tue Jan 30, 2018 9:21 pm Post subject: [SOLVED] Kernel panic on new computer SSD |
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Hi,
I've been using Gentoo for years on others computers. I've just bought a new one with an MSI B350 motherboard, an AMD Ryzen 5 cpu, and my first SSD disk. It's also the first time I use UEFI boot...
... and I always go on Kernel panic with no idea to get it works 
Here is the screen shot.
It seems there are no disk ("here are the available partitions : " ?). However BIOS correctly detects my drive, as the first SATA device.
My installation is
parted /dev/sdb print
| Code: | Model: ATA CT240BX300SSD1 (scsi)
Disk /dev/sdb: 240GB
Sector size (logical/physical): 512B/4096B
Partition Table: gpt
Disk Flags:
Number Start End Size File system Name Flags
1 1049kB 240GB 240GB ext4
2 240GB 240GB 104MB fat32 boot, esp
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in chroot mount -t ext4,vfat
| Code: | /dev/sdb1 on / type ext4 (rw,relatime,data=ordered)
/dev/sdb2 on /boot type vfat (rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro)
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I've applied https://wiki.gentoo.org/wiki/Handbook:AMD64/Installation/Bootloader#Install, and https://wiki.gentoo.org/wiki/EFI_System_Partition's help, with --target=x86_64-efi, and no errors shown.
The interesting part of /boot/grub/grub.cfg (I've manually changed /dev/sdb to /dev/sda because of the LiveUSB key currently on /dev/sda).
| Code: | ...
### BEGIN /etc/grub.d/10_linux ###
menuentry 'Gentoo GNU/Linux' --class gentoo --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-simple-3e5664e7-a05e-4057-8971-bd51fae1c5fd' {
load_video
if [ "x$grub_platform" = xefi ]; then
set gfxpayload=keep
fi
insmod gzio
insmod part_gpt
insmod fat
set root='hd1,gpt2'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd1,gpt2 --hint-efi=hd1,gpt2 --hint-baremetal=ahci1,gpt2 6394-1BB3
else
search --no-floppy --fs-uuid --set=root 6394-1BB3
fi
echo 'Chargement de Linux 4.14.6…'
linux /vmlinuz-4.14.6 root=/dev/sda1 ro
}
submenu 'Options avancées pour Gentoo GNU/Linux' $menuentry_id_option 'gnulinux-advanced-3e5664e7-a05e-4057-8971-bd51fae1c5fd' {
menuentry 'Gentoo GNU/Linux, avec Linux 4.14.6' --class gentoo --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.14.6-advanced-3e5664e7-a05e-4057-8971-bd51fae1c5fd' {
load_video
if [ "x$grub_platform" = xefi ]; then
set gfxpayload=keep
fi
insmod gzio
insmod part_gpt
insmod fat
set root='hd1,gpt2'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd1,gpt2 --hint-efi=hd1,gpt2 --hint-baremetal=ahci1,gpt2 6394-1BB3
else
search --no-floppy --fs-uuid --set=root 6394-1BB3
fi
echo 'Chargement de Linux 4.14.6…'
linux /vmlinuz-4.14.6 root=/dev/sda1 ro
}
menuentry 'Gentoo GNU/Linux, avec Linux 4.14.6 (mode de dépannage)' --class gentoo --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.14.6-recovery-3e5664e7-a05e-4057-8971-bd51fae1c5fd' {
load_video
if [ "x$grub_platform" = xefi ]; then
set gfxpayload=keep
fi
insmod gzio
insmod part_gpt
insmod fat
set root='hd1,gpt2'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd1,gpt2 --hint-efi=hd1,gpt2 --hint-baremetal=ahci1,gpt2 6394-1BB3
else
search --no-floppy --fs-uuid --set=root 6394-1BB3
fi
echo 'Chargement de Linux 4.14.6…'
linux /vmlinuz-4.14.6 root=/dev/sda1 ro single
}
}
### END /etc/grub.d/10_linux ###
... |
To configure my kernel, I've used the liveUSB configuration (Ubuntu 16.04.3, i'm sorry  ), with all EXT_FS (ext2 and 3 as modules). But I don't think it's a fs problem, as there's apparently no partition detected.
During boot attempts, I've tried and change sda1 to sda2, because there is the EFI partition. With no success.
Is there anything I cant do (I think especially about SSD) ?
Thanks in advance
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LinuxCounter 313324
Last edited by lhuge on Sat Feb 10, 2018 8:47 am; edited 1 time in total |
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eccerr0r
Watchman
Joined: 01 Jul 2004
Posts: 7270
Location: almost Mile High in the USA
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| Posted: Tue Jan 30, 2018 9:44 pm Post subject: |
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Since you're not using initramfs, you have to build your root disk driver (SATA and such) and root filesystem (ext4 or whatever you're using) into the kernel = "Y". I can't tell whether you did this or not, but this must be the case. The worry is that the livecd/livedvd may have some of the drivers in the initramfs which won't work as you aren't using one.
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Intel Core i7 2700K@ 4.1GHz/HD3000 graphics/8GB DDR3/180GB SSD
What am I supposed watching? |
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NeddySeagoon
Administrator
Joined: 05 Jul 2003
Posts: 44154
Location: 56N 3W
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| Posted: Tue Jan 30, 2018 10:44 pm Post subject: |
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lhuge,
and the empty list of partitions after "Here are the available partitions:" both point to a kernel configured to need an initrd and no initrd provided.
Everything needed to mount root munt be configured as built in, since the kernel has to do that unaided.
_________________
Regards,
NeddySeagoon
Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail. |
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P.Kosunen
Guru
Joined: 21 Nov 2005
Posts: 309
Location: Finland
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| Posted: Wed Jan 31, 2018 5:21 pm Post subject: Re: Kernel panic on new computer SSD |
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| lhuge wrote: | | But I don't think it's a fs problem, as there's apparently no partition detected. |
Missing MBR or GPT partition support from kernel could be problem, root filesystem support must be in kernel also.
Edit: | Quote: | | To configure my kernel, I've used the liveUSB configuration (Ubuntu 16.04.3, i'm sorry ), with all EXT_FS (ext2 and 3 as modules). |
This might not be easiest way. |
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lhuge
n00b
Joined: 28 Jan 2018
Posts: 9
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| Posted: Wed Jan 31, 2018 7:40 pm Post subject: |
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OK. I may be too stupid, or lazy (or both  ). I've believed I can do it when the system will be operative.
I'm going to tune my kernel, make all necessary modules integrated, and report when it will work.
Thanks for these pieces of advice.
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lhuge
n00b
Joined: 28 Jan 2018
Posts: 9
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| Posted: Sat Feb 10, 2018 9:05 am Post subject: A few configuration and SATA cable management |
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Hi,
Eventually, I found my way to make my system boot...
First of all, I've added ext2 in the kernel, but it shows it doesn't have effect (now that my computer boots, I've got only ext4 in the kernel, ext2 and ext3 are modules, and there are not loaded).
Then I've followed P.Kosunen's advice, and rebuilt the disk to make it in GPT format. It is one of the most important progress.
I've had times to times fails because of forgetting to change boot disk to /dev/sda (LiveUSB key is on /dev/sda).
But what determine my success is that I've detected in dmesg sentences as link is slow to respond, please be patient. And I've solved them by freeing the SATA cables in the tower (I've read about not folding them to 90°, but I'm sure it is vital now).
Then my system boots fluently  .
Thanks for you help.
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