[syslinux] extlinux device trouble

[Johann Obermayr]

Am 15.01.2014 04:57, schrieb Gene Cumm:
> On Tue, Jan 14, 2014 at 10:50 PM, Gene Cumm <gene.cumm at gmail.com> wrote:
>> On Tue, Jan 14, 2014 at 9:28 AM, Johann Obermayr
>> <johann.obermayr at sigmatek.at> wrote:
>>> Hello,
>>>
>>> i'm using version 4.07.
>>> On my computer extlinux does not work.
>>> after debugging, i found the trouble.
>>>
>>> in the function parse_mountinfo there was using a function get_string.
>>> in the function get_string there was a line (42) } else if (ch == '\\') {
>>> but in my mountinfo list, there was \ , but not with octal digit.
>>> so the function get_string will fail.
>>>
>>> here are some information
>>> ### fstab ###
>>> #Mount Build environment
>>> //10.30.20.61/platform          /home/platform  smbfs guest,ro        0 0
>>> //10.30.20.61/builds            /home/builds            smbfs guest,ro
>>> 0 0
>>>
>>> #### this is a part from /proc/self/mountinfo ########
>>> 33 20 0:23 / /home/builds ro,relatime - cifs //10.30.20.61/builds
>>> ro,sec=ntlm,unc=\\10.30.20.61\builds,username=,uid=0,noforceuid,gid=0,noforcegid,addr=10.30.20.61,unix,posixpaths,serverino,acl,rsize=1048576,wsize=65536,actimeo=1
>>> 32 20 0:24 / /home/platform ro,relatime - cifs //10.30.20.61/platform
>>> ro,sec=ntlm,unc=\\10.30.20.61\platform,username=,uid=0,noforceuid,gid=0,noforcegid,addr=10.30.20.61,unix,posixpaths,serverino,acl,rsize=1048576,wsize=65536,actimeo=1
>>>
>>> and after this entrys, there are my mounting points. extlinux does not found
>>> the correct entry.
>> If I'm reading correctly, you feel the get_string() call on line 163
>> (retrieving the mount options for m->mountopt will return -1 due to
>> the double backslash).  Am I correct?  This seems rather odd that your
>> mount options have the DOS form of the UNC path.
> Your mountinfo should have \134\134 not \\.
>
Hello,

all our Linux Computer use Ubuntu 12.04 with the same mount entrys.
And all have unc=\\ipaddr.....  in the file /proc/<pid>/mountinfo
We don't known, how to change this to \134\134.

Best regards
   Johann