This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:
apport-collect 1967562 and then change the status of the bug to 'Confirmed'. If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'. This change has been made by an automated script, maintained by the Ubuntu Kernel Team. ** Changed in: linux (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1967562 Title: jammy beta (220330) arm iso kernel panic during pxe boot Status in linux package in Ubuntu: Incomplete Status in subiquity package in Ubuntu: New Bug description: = Description = Platforms: Ampere Mt. Jade Altra (bizzy), Cavium thunderX crb2s (recht) Image: Jammy Beta (220330) I setup my pxe server to provision jammy beta and got the following kernel panic message after grub stage: log from console log [ 1.176614] integrity: Couldn't parse dbx signatures: -74^M [ 1.371630] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)^M [ 1.379891] CPU: 42 PID: 1 Comm: swapper/0 Not tainted 5.15.0-23-generic #23-Ubuntu^M [ 1.387535] Hardware name: WIWYNN Mt.Jade Server System B81.030Z1.0007/Mt.Jade Motherboard, BIOS 1.6.20210526 (SCP: 1.06.20210526) 2021/05/26^M [ 1.400215] Call trace:^M [ 1.402649] dump_backtrace+0x0/0x1ec^M [ 1.406310] show_stack+0x24/0x30^M [ 1.409614] dump_stack_lvl+0x68/0x84^M [ 1.413271] dump_stack+0x18/0x34^M [ 1.416573] panic+0x18c/0x39c^M [ 1.419616] mount_block_root+0x160/0x210^M [ 1.423622] mount_root+0x12c/0x14c^M [ 1.427097] prepare_namespace+0x140/0x1a0^M [ 1.431182] kernel_init_freeable+0x1c8/0x214^M [ 1.435527] kernel_init+0x30/0x160^M [ 1.439006] ret_from_fork+0x10/0x20^M [ 1.442573] SMP: stopping secondary CPUs^M [ 1.447323] Kernel Offset: 0x55263ee90000 from 0xffff800008000000^M [ 1.453404] PHYS_OFFSET: 0x80000000^M [ 1.456879] CPU features: 0x000085c1,a3302e42^M [ 1.461225] Memory Limit: none^M [ 1.464271] ---[ end Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0) ]---^M = Steps to Reproduce = 1. Followed this guide to setup the pxe server https://discourse.ubuntu.com/t/netbooting-the-live-server-installer-via-uefi-pxe-on-arm-aarch64-arm64-and-x86-64-amd64/19240 with the jammy beta image (220330) http://cdimage.ubuntu.com/ubuntu-server/daily-live/20220330/jammy-live-server-arm64.iso 1-1. You may use this script to perform the set-up https://github.com/tai271828/ubuntu-autoinstall-pxe-server by invoking: `sudo ./setup-pxe-server.sh --url http://cdimage.ubuntu.com/ubuntu-server/daily-live/20220330/jammy-live-server-arm64.iso` 2. Boot the system via PXE 3. Select Ubuntu at Grub menu = Expected Result = The image is loaded to the system locally via PXE, and subiquity is launched = Actual Result = Console log simply shows nothing for 10 seconds and then the kernel panic shows up. = Additional Information = - If we install via the virtual CD of the server, subiquity could be launched and the installation process completes successfully. - MAAS could deploy Jammy to the Mt. Jade server as well. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1967562/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp