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NeddySeagoon
Administrator
Joined: 05 Jul 2003
Posts: 54421
Location: 56N 3W
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 Posted: Thu May 05, 2022 4:25 pm Post subject: |
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ElRay70K70H,
| Code: | | unknown-block (0,0) |
tells that the kernel cannot see the device that holds the root filesystem.
It also tells that you do not use an initrd or that error would have dropped you to a shell in the initrd.
That's fine. Together it gives us something to poke at.
fstab is in the clear as its on the root filesystem so cannot have been read yet.
As root is going to be on an SSD attached over USB, all the required drivers must be configured as <*> for built in, so there is nowhere to load any modules from without an initrd.
Modules are stored in /lib/modules/`uname -r`/... which is on the root filesystem which is not mounted yet.
An initrd contains whatever you want and a script that controls what it does.
Its a temporary root fs.
Building the right bits into the kernel will be simpler.
An initrd with kernel modules needs to be recreated every kernel change.
Its also passible that your cmdline.txt is incorrect.
| Code: | | root=/dev/... rootwait |
are both required
Until it works, rootdelay=30 may be better. rootwait will wait for the rootfs forever. Rootdelay=30 waits for 30 sec, then either succeeds or show the panic message.
_________________
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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ShorTie
Tux's lil' helper
Joined: 12 Feb 2006
Posts: 101
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| Posted: Thu May 05, 2022 8:54 pm Post subject: |
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Here is a simple script I use to build and install the kernel
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eselect kernel list
eselect kernel set 2
eselect kernel list
echo; echo; echo " make mrproper"
make -C linux mrproper
echo; echo " Setting scmKernel_version to plus/+"
echo + > linux/.scmKernel_version
echo; echo; echo " Creating bcm2711_defconfig .config"
make -C linux bcm2711_defconfig
echo; echo; echo " make prepare"
make -C linux prepare
echo; echo " Set hostname"
sed -e 's/CONFIG_DEFAULT_HOSTNAME="(none)"/CONFIG_DEFAULT_HOSTNAME="tux"/' -i linux/.config
echo; echo; echo "make oldconfig"; echo
make -C linux oldconfig
echo; echo; echo " Compile-kernel"
make -j 4 V=1 -C linux
echo; echo; echo " Make modules"
make -j 4 V=1 -C linux modules
echo; echo; echo " Make dtbs"
make -j 4 V=1 -C linux dtbs
echo; echo " Make modules_install"
make -C linux modules_install
echo; echo " Some Copies"
cp -v /usr/src/linux/arch/arm64/boot/Image /boot/kernel8.img
cp -v /usr/src/linux/System.map /boot/System.map-5.15.32
cp -v /usr/src/linux/arch/arm64/boot/dts/overlays/*.dtb* /boot/overlays/
cp -v /usr/src/linux/arch/arm64/boot/dts/overlays/README /boot/overlays/
cp -v /usr/src/linux/.config /boot/linux.config-5.15.32
cp -v /usr/src/linux/arch/arm64/boot/dts/broadcom/bcm271*.dtb /boot
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NeddySeagoon
Administrator
Joined: 05 Jul 2003
Posts: 54421
Location: 56N 3W
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| Posted: Thu May 05, 2022 9:36 pm Post subject: |
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ShorTie,
How does that set the kernel options required for USB booting and root on USB to built in?
bcm2711_defconfig didn't used to do it.
_________________
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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ElRay70K70H
n00b
Joined: 12 Apr 2022
Posts: 17
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| Posted: Thu May 05, 2022 10:05 pm Post subject: |
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The last batch of changed did the trick. I'm in at the cmdline now.
Woo ... Hoo!!
Thanks all. |
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ShorTie
Tux's lil' helper
Joined: 12 Feb 2006
Posts: 101
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| Posted: Thu May 05, 2022 10:08 pm Post subject: |
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bcm2711_defconfig I guess, as I've never have adjusted bcm2711_defconfig for much.
Like only modem's to modules and add a few ciphers.
But I do that with sed .. :/~
Never heard of any "root on USB to built in?", that has always been a cmdline.txt thing.
But it is not really usb now.
Your booting the 1st vfat partition it see's, with a root of PARTUUID.
They switched to using PARTUUID so the image can be writen to any thing.
Instead of being nailed to mmcblkp02 or what ever. |
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NeddySeagoon
Administrator
Joined: 05 Jul 2003
Posts: 54421
Location: 56N 3W
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| Posted: Fri May 06, 2022 5:08 pm Post subject: |
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ShorTie,
The OP is not using an MMC card at all. The PI3 and Pi4 can boot directly from USB.
The Pi3 needs a One Time Programmable Fuse blown and early Pi4s need a firmware update.
The firmware can read the vfat partition from USB storage.
The kernel needs to be able to read root from USB storage too, so no modules permitted for that code.
There is another wrinkle to root over USB. The kernel normally mounts root before it starts USB.
That's bound to fail with root on USB, so rootwait or rootdelay fixes that.
One of those options are required for root on MMC too but for a different reason.
MMC scanning is asynchronous, so it may not be ready in time.
_________________
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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ShorTie
Tux's lil' helper
Joined: 12 Feb 2006
Posts: 101
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| Posted: Sat May 07, 2022 11:50 am Post subject: |
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Ok
Once again I see your the Master.
And I'm just a fool trying to help.
Y'all Have A Great Day Now |
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Gentoo on ARM
