Re: [gentoo-user] Kernel doesn't accept any initramfs
On Thursday, March 26, 2020 7:50:29 AM CET andrey@gmail.com wrote: > On Wed, Mar 25, 2020 at 8:23 AM J. Roeleveld wrote: > > On Tuesday, March 24, 2020 10:57:59 PM CET andrey@gmail.com wrote: > > > On Tue, Mar 24, 2020 at 2:45 AM J. Roeleveld wrote: > > > > On Tuesday, March 24, 2020 4:55:49 AM CET andrey@gmail.com wrote: > > > > > I've somehow built a kernel that won't accept any initramfs. To > > > > > elaborate, it hangs in shell in dracut and panicks with a minimal > > > > > initramfs as if it rejects the initramfs entirely and tries to boot > > > > > an > > > > > lvm volume, which of course, fails. > > > > > > > > > > Kernel config: > > > > > http://sprunge.us/tqz3BM > > > > > > > > > > The minimal initramfs is described by the file listing > > > > > http://sprunge.us/GQVbqc > > > > > and init script http://sprunge.us/YHWY9Z , though this script is of > > > > > limited use since even with `exec sh` in the first non-comment line, > > > > > the kernel doesn't follow through. > > > > > > > > > > Thoughts? > > > > > > > > Please provide the info as attachments instead of temporary links. > > > > Few thoughts: > > > > 1) Are you certain your initramfs includes everything? My "config" file is > > a lot longer. > > Yes, and it is the absolute bare minimum necessary. Ok, I don't use static binaries, simply use a ldd-script to generate the shared libs-list for the config. > > 2) How are you generating the initramfs? > > /usr/src/linux/usr/gen_init_cpio /usr/src/initramfs/files.list | xz -z Have you checked all files are included after this? > > /boot/intramfs-img > > > > 3) how are you adding it to the bootloader? > > Grub's default form. To elaborate, the usual method grub does when > generating a linux entry in grub-mkconfig. Did you manage to find out if the initramfs file was actually added to the correct entry? > > 4) Have you tried embedding the initramfs into the kernel? > > Yes, and that made it work. Weird how it didn't work not embedded into > the kernel. > On further thought, it worked after a couple of debugging iterations. > Could it have been the bugs in the script at fault? Perhaps, but I suggested this as it's the only way I could make it work on my old laptop. "grub-mkconfig" only matches kernels and initramfs files together if they follow a specific naming convention. > > Also, can you provide the kernel messages leading to and including the > > panic? (Either full text or a clear photo taken with a > > camera/phone/tablet) > Well, the two panics were either trying to kill init or the familiar > "VFS: Unable to mount root fs on unknown-block(0,0)". Kernel > framebuffer load reset grub's high res console and the panic took over > the screen so messages right before would've been impossible to > extract without something like a serial console. I tend to disable the framebuffer and screen cleaning until I have a working boot. And when it boots, I tend to forget enabling all that as I have more important things to do. -- Joost
Re: [gentoo-user] Kernel doesn't accept any initramfs
On Wed, Mar 25, 2020 at 8:23 AM J. Roeleveld wrote: > > On Tuesday, March 24, 2020 10:57:59 PM CET andrey@gmail.com wrote: > > On Tue, Mar 24, 2020 at 2:45 AM J. Roeleveld wrote: > > > On Tuesday, March 24, 2020 4:55:49 AM CET andrey@gmail.com wrote: > > > > I've somehow built a kernel that won't accept any initramfs. To > > > > elaborate, it hangs in shell in dracut and panicks with a minimal > > > > initramfs as if it rejects the initramfs entirely and tries to boot an > > > > lvm volume, which of course, fails. > > > > > > > > Kernel config: > > > > http://sprunge.us/tqz3BM > > > > > > > > The minimal initramfs is described by the file listing > > > > http://sprunge.us/GQVbqc > > > > and init script http://sprunge.us/YHWY9Z , though this script is of > > > > limited use since even with `exec sh` in the first non-comment line, > > > > the kernel doesn't follow through. > > > > > > > > Thoughts? > > > > > > Please provide the info as attachments instead of temporary links. > > Few thoughts: > > 1) Are you certain your initramfs includes everything? My "config" file is a > lot longer. Yes, and it is the absolute bare minimum necessary. > > 2) How are you generating the initramfs? /usr/src/linux/usr/gen_init_cpio /usr/src/initramfs/files.list | xz -z > /boot/intramfs-img > > 3) how are you adding it to the bootloader? Grub's default form. To elaborate, the usual method grub does when generating a linux entry in grub-mkconfig. > > 4) Have you tried embedding the initramfs into the kernel? Yes, and that made it work. Weird how it didn't work not embedded into the kernel. On further thought, it worked after a couple of debugging iterations. Could it have been the bugs in the script at fault? > > Also, can you provide the kernel messages leading to and including the panic? > (Either full text or a clear photo taken with a camera/phone/tablet) Well, the two panics were either trying to kill init or the familiar "VFS: Unable to mount root fs on unknown-block(0,0)". Kernel framebuffer load reset grub's high res console and the panic took over the screen so messages right before would've been impossible to extract without something like a serial console.
Re: [gentoo-user] Kernel doesn't accept any initramfs
On Tuesday, March 24, 2020 10:57:59 PM CET andrey@gmail.com wrote: > On Tue, Mar 24, 2020 at 2:45 AM J. Roeleveld wrote: > > On Tuesday, March 24, 2020 4:55:49 AM CET andrey@gmail.com wrote: > > > I've somehow built a kernel that won't accept any initramfs. To > > > elaborate, it hangs in shell in dracut and panicks with a minimal > > > initramfs as if it rejects the initramfs entirely and tries to boot an > > > lvm volume, which of course, fails. > > > > > > Kernel config: > > > http://sprunge.us/tqz3BM > > > > > > The minimal initramfs is described by the file listing > > > http://sprunge.us/GQVbqc > > > and init script http://sprunge.us/YHWY9Z , though this script is of > > > limited use since even with `exec sh` in the first non-comment line, > > > the kernel doesn't follow through. > > > > > > Thoughts? > > > > Please provide the info as attachments instead of temporary links. Few thoughts: 1) Are you certain your initramfs includes everything? My "config" file is a lot longer. 2) How are you generating the initramfs? 3) how are you adding it to the bootloader? 4) Have you tried embedding the initramfs into the kernel? Also, can you provide the kernel messages leading to and including the panic? (Either full text or a clear photo taken with a camera/phone/tablet) -- Joost
Re: [gentoo-user] Kernel doesn't accept any initramfs
On Tuesday, March 24, 2020 4:55:49 AM CET andrey@gmail.com wrote: > I've somehow built a kernel that won't accept any initramfs. To > elaborate, it hangs in shell in dracut and panicks with a minimal > initramfs as if it rejects the initramfs entirely and tries to boot an > lvm volume, which of course, fails. > > Kernel config: > http://sprunge.us/tqz3BM > > The minimal initramfs is described by the file listing > http://sprunge.us/GQVbqc > and init script http://sprunge.us/YHWY9Z , though this script is of > limited use since even with `exec sh` in the first non-comment line, > the kernel doesn't follow through. > > Thoughts? > > -- AV Please provide the info as attachments instead of temporary links. -- Joost
[gentoo-user] Kernel doesn't accept any initramfs
I've somehow built a kernel that won't accept any initramfs. To elaborate, it hangs in shell in dracut and panicks with a minimal initramfs as if it rejects the initramfs entirely and tries to boot an lvm volume, which of course, fails. Kernel config: http://sprunge.us/tqz3BM The minimal initramfs is described by the file listing http://sprunge.us/GQVbqc and init script http://sprunge.us/YHWY9Z , though this script is of limited use since even with `exec sh` in the first non-comment line, the kernel doesn't follow through. Thoughts? -- AV
