I did a brand new install of Ubutu 23.04 on this computer and it was working find - until kernel 6.2.0-26-generic came out (same problem with all later kernels, but kernel 25 still works great). Since then whenever I boot I get the following (see section begining with DMAR). Looking at all the information, I'm wondering if somehow the first kernel update (to kernel 26) figured that obviously /dev/sda would be the boot device (after all, a comes before b), especially since it's the SATA 0.0 and that seems to be where the system is looking for the root fs. However, for all that I have been using Unix/Linux for the last, well, let's stick with "a long time" and not be specific, I've never really researched the boot sequence and so that could be completely wrong.
Any advice on how to fix this would be very much appreciated.
Code:
DMAR: DRHD: handling fault status reg 2
DMAR: [INTR-REMAP] Request device [f0:1f.0] fault index 0x0 [fault reason 0x25] Blocked a compatibility format interrupt request
x86/cpu: SGX disabled by BIOS.
/dev/root: Can't open blockdev
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)
CPU: 0 PID: 1 Comm: swapper/0 Not tainted 6.2.0-32-generic #32-Ubuntu
OR 6.2.0-31-generic #31-Ubuntu
OR 6.2.0-26-generic #26-Ubuntu
Hardware name: Dell Inc. Inspiron 7472/06KVJV, BIOS 1.11.0 03/18/2022
Call Trace:
<TASK>
dump_stack_lvl+0x48/0x70
dump_stack+0x10/0x20
panic+0x37b/0x3c0
mount_block_root+0x2c9/0x2d0
mount_root+0x83/0xb0
prepare_namespace+0xf5/0x200
kernel_init_freeable+0x1e5/0x220
? __pfx_kernel_init+0x10/0x10
kernel_init_0x1b/0x200
? __pfx_kernel_init+0x10/0x10
ret_from_fork+0x29/0x50
</TASK>
Kernel Offset: 0x2a00000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff)
---[ end Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0) ]---Disk configuration info:
Two drives - an SDD (1.28 GiB) for boot, and a 1 TB HDD (for data) (at least that's what I would like it to be)
From the BIOS Configuration:
Code:
SATA 0.0 ST1000LM035-1RK172 => Terabyte HDD, apparently /dev/sda
SATA 0.2 LITON CV8-8E128-11 => 128 GiB SDD, apparently /dev/sdbFrom gparted:
Code:
/dev/sda1, 930.46
Partition File system Mount Point Size Used Unused Flags
--------- ---- ------ ----- ----- ---- ---- ------ -----
/dev/sda2 fat32 1.05 GiB boot, esp
/dev/sda1 ext4 /home 930.46 GiB 178.40 GiB 752.06 GiB
Unallocated 1.71 MiB
/dev/sdb2, 118.19 GiB
Partition File system Mount Point Size Used Unused Flags
--------- ---- ------ ----- ----- ---- ---- ------ -----
/dev/sdb1 fat 32 1.05 GiB 11.59 MiB 1.04 GiB boot, esp
/dev/sdb2 ext4 /,/var/snap... 118.19 GiB 24.02 GiB 94.17 GiB
unallocated 1.34 MiB