Public bug reported:

Binary package hint: linux-image-2.6.22-14-386

The problem occurred after upgrading from 7.04 to 7.10 Ubuntu.  I have
followed all instructions on how to upgrade posted in UBUNTU WIKI
(update-manager -d).  Before describing my problem, here is my hardware
info:

=> cat /proc/cpuinfo
processor       : 0
vendor_id       : GenuineIntel
cpu family      : 15
model           : 2
model name      : Intel(R) Pentium(R) 4 CPU 2.00GHz
stepping        : 4
cpu MHz         : 1992.051
cache size      : 512 KB
fdiv_bug        : no
hlt_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 2
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov 
pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm
bogomips        : 3986.87
clflush size    : 64


512Mb of RAM,
120Mb ATA hard drive

2 external USB drives:
Bus 002 Device 003: ID 067b:3507 Prolific Technology, Inc. PL3507 ATAPI6 Bridge
Bus 002 Device 002: ID 0d49:7010 Maxtor

PCI:
00:00.0 Host bridge: Silicon Integrated Systems [SiS] 650/M650 Host (rev 01)
00:01.0 PCI bridge: Silicon Integrated Systems [SiS] Virtual PCI-to-PCI bridge 
(AGP)
00:02.0 ISA bridge: Silicon Integrated Systems [SiS] SiS961 [MuTIOL Media IO]
00:02.1 SMBus: Silicon Integrated Systems [SiS] SiS961/2 SMBus Controller
00:02.5 IDE interface: Silicon Integrated Systems [SiS] 5513 [IDE] (rev d0)
00:02.7 Multimedia audio controller: Silicon Integrated Systems [SiS] AC'97 
Sound Controller (rev a0)
00:06.0 USB Controller: NEC Corporation USB (rev 43)
00:06.1 USB Controller: NEC Corporation USB (rev 43)
00:06.2 USB Controller: NEC Corporation USB 2.0 (rev 04)
00:07.0 Multimedia video controller: Brooktree Corporation Bt878 Video Capture 
(rev 11)
00:07.1 Multimedia controller: Brooktree Corporation Bt878 Audio Capture (rev 
11)
00:0f.0 Ethernet controller: Realtek Semiconductor Co., Ltd. 
RTL-8139/8139C/8139C+ (rev 10)
01:00.0 VGA compatible controller: nVidia Corporation NV17 [GeForce4 MX 420] 
(rev a3)

Currently working and running kernel on my 7.10 installation is
2.6.20-16-386.

Problem.
During the initial boot process, /boot file system  and my external drives are 
not mounted.  It fails with the following error: file system is already mounted 
or another process is currently using it.

At that point I am given a choice of dropping to a shell for further
diagnostics or pressing Ctrl-D to continue.  After dropping to a shell
and trying to perform an fsck, a file system busy error is displayed.  I
cannot mount /boot nor my external USB drives.

I am at a loss here.  What was the major change in I/O stack between .20
and .22 kernel series?  Something is executed before all partition and
file systems have a chance to get mounted.  Reverting back to my working
kernel (2.6.20-16-386) solves my issue but what about 2.6.22?

** Affects: linux-source-2.6.22 (Ubuntu)
     Importance: Undecided
         Status: New

-- 
Upgrade to linux-image-2.6.22-14 kernel renders my PC unbootable
https://bugs.launchpad.net/bugs/152820
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