update-initramfs, wubi: bad check for read-only /boot partition

[Jonas Weinen]

Binary package hint: initramfs-tools

This bug appears on a gutsy wubi installation, but I think it is a general problem in update-initramfs (version 0.85eubuntu20).

EDIT: Debian already fixed this. See Debian bug #451151

update-initramfs checks whether /boot is mounted read-only with this awk line (l. 263-264):

> (awk '/boot/{if (match($4, /ro/) && $2 == "/boot") print "ro"}' /proc/mounts

However, on my machine the corresponding line in /proc/mounts says:

> /dev/disk/by-uuid/6C44DC2444DBEF38 /boot fuseblk rw,nosuid,nodev,noatime,user_id=0,group_id=0,allow_other 0 0

I'm not an expert in awk, but I think it is matching the 'ro' from 'gROup'. The result is that update-initramfs refuses to work:

> sudo update-initramfs -vu
> WARNING: /boot is ro mounted.
> update-initramfs: Not updating /boot/initrd.img-2.6.22-14-generic

An ugly fix would be to match the pattern /^ro/ because all mounts in /proc/mounts seem to have the rw/ro state in the first position, but there is probably a more elegant way.

In ver 0.85eubuntu21 = current hardy package, it is still the same.

[Igor Kolker (igor-kolker)]

running 8.04 server and was getting same thing with

UUID=f13f0150-047b-40bc-abb9-64e8d43a5e09 /boot ext2 suid,errors=remount-ro,dev,exec 0 2

the string in /usr/sbin/update-initramfs was

boot_opts=$(awk '/boot/{if (match($4, /([^a-zA-Z0-9]|^)ro([^a-zA-Z0-9]|$)/) && $2 == "/boot") print "ro"}' /proc/mounts)

I added "\-"

boot_opts=$(awk '/boot/{if (match($4, /([^a-zA-Z0-9\-]|^)ro([^a-zA-Z0-9]|$)/) && $2 == "/boot") print "ro"}' /proc/mounts)

its it no longer picks up the "remount-ro"

[Jonas Weinen (weinen)]

This is fixed in Hardy and can be closed.