Public bug reported:
1) new install, ubuntu 16.04, (single / partition (ext4?) + swap partition)
2) upgrade to bionic/18.04
3) upgrade to cosmic/18.10
4) upgrade grub2 via aptitude to most recent version
5) update asks if I wish to chain load, I select yes
6) update asks if I wish to install maintainer's version of grub.lst or
menu.lst or something. I choose the maintainer's version
result (timestamps omitted):
upon boot
Booting ubuntu cosmic cuttlefish (development branch) kernel 4.17.0-6-generic
Booting ubuntu cosmic cuttlefish (development branch) kernel 4.17.0-6-generic
Booting ubuntu cosmic cuttlefish (development branch) kernel 4.17.0-6-generic
in 0 seconds [0.328965] Kernel Panic - not synching: VFS: unable to mount root
fs on unknown-block(0,0)
CPU 2: PID: 1 Comm: swapper/0 not tainted 4.17.0-6-generic #7-Ubuntu
Hardware name Red Hat KVM , BIOS 0.5.1 01/01/2007
Call Trace
dump_stack+0x63/0x83
panic+0xe7/0x247
mount_block_root+0x231/0x2d8
? do_early_param +0x95/0x95
mount_root+0x38/0x3a
prepare_namespace+0x139/0x18e
kernel_init_freeable+0x236/0x261
?rest_init +0xb0/0xb0
kernel_init +0xe/0x10d
ret_from_fork +0x35/0x40
Kernel Offset : 0x8e00000 from 0xffffffff81000000 relocation range
0xffffffff80000000)
--- [ end kernel panic - not synching: VFS: Unable to mount root fs on
unknown-block(0,0) ] ---
server: vps, ext4 partitions(?),
** Affects: grub2 (Ubuntu)
Importance: Undecided
Status: New
** Tags: cosmic
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https://bugs.launchpad.net/bugs/1785506
Title:
most recent update on cosmic leads to unable to mount
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