Bug#826999: Kernel build scripts confused by entries for SCSI devices in /proc/mounts

[Elliott Mitchell <ehem+debian@m5p.com>]

Package: src:linux
Version: 3.2.63-2
Control: found -1 linux/2.6.18
Control: found -1 linux/3.16.7-ckt25-2
Control: found -1 linux/3.16.7-ckt20-1+deb8u3
Control: found -1 linux/3.2.78-1
Control: found -1 linux/3.16.7-ckt11-1+deb8u6~bpo70+1
Control: found -1 linux/2.6.32

The kernel build scripts are confused by what the SCSI subsystem produces
in /proc/mounts:

$ awk '$2 == "/" && $1 != "rootfs"' < /proc/mounts
/dev/root / ext3 ro
$ 

A kernel build on such a system will panic on boot unless the root
filesystem is explicitly passed to the kernel by the bootloader.  While
in common configurations bootloaders generally default to telling the
kernel what device it should use as root, that has not been documented to
be required.

Since Ben Hutchings thinks #588675 is too insignificant to ever be worthy
of a single line of code to fix, this bug now needs to be fixed (along
with many other utilities that are broken by #588675).


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