[Bug 1813541] Re: Shim uses wrong TFTP server IP in proxyDHCP mode

2021-02-21 Thread patpat
This is still unsolved.
where is "upstream" to politely request this fixed?
Even if shim is highly security sensitive it's TFTP requesting 
the wrong server in a proxyDHCP environment.
thanks

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[Bug 1725680] Re: DNS name resolution doesn't work on Artful

2017-12-11 Thread patpat
It seems Casper does not update /etc/systemd/resolved.conf
then I do not really know how you get this working if booting 
from an untouched live 17.10 Ubuntu

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  DNS name resolution doesn't work on Artful

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[Bug 1725680] Re: DNS name resolution doesn't work on Artful

2017-12-10 Thread patpat
I'm PXE booting 17.10 live with Serva.
I also found that the booting image DNS is broken.

I traced the problem to Casper within the booting initrd.lz, the file
/script/casper-bottom/23networking
does not populate 
/etc/systemd/resolved.conf
therefore the DNS daemon does not work.

I've added to 23networking

if [ -f /root/etc/systemd/resolved.conf ]; then
resolv=/root/etc/systemd/resolved.conf

cat > $resolv <> $resolv
[ -n "$rc_server0" ] && [ "$rc_server0" != "0.0.0.0" ] && echo 
"DNS=$rc_server0" >> $resolv
[ -n "$rc_server1" ] && [ "$rc_server1" != "0.0.0.0" ] && echo 
"FallbackDNS=$rc_server1" >> $resolv
[ -n "$rc_server1" ] && [ "$rc_server1" = "0.0.0.0" ] && [ 
"$rc_server0" != "0.0.0.0" ] && echo "FallbackDNS=$rc_server0" >> $resolv
[ -n "$rc_domain" ] && echo "Domains=${rc_domain}" >> $resolv

echo "#LLMNR=yes" >> $resolv
echo "#MulticastDNS=yes" >> $resolv
echo "#DNSSEC=no" >> $resolv
echo "#Cache=yes" >> $resolv
echo "#DNSStubListener=udp" >> $resolv

fi

and now 17.10 live PXE boots correctly with a healthy DNS

Best,
Patrick


** Attachment added: "23networking"
   
https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1725680/+attachment/5021036/+files/23networking

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[Bug 1327412] Re: Delay during PXE Boot, IP-Config gives up

2016-11-02 Thread patpat
I stand corrected; 
there's a typo on my patch the correct line should look like:
+ bootp.flags = htons(0x8000);
as mentioned by jvosburgh

Unfortunately this mistake was not previously detected because 
all the net gear I've used on tests and Wireshark completely 
ignored it.


Best,
Patrick

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[Bug 1327412] Re: Delay during PXE Boot, IP-Config gives up

2016-07-06 Thread patpat
you know what 
fixing 2 + 2 = 5
with 2 + 2 = 4
does not really need to be "confirmed" in every single Ubuntu flavor.
if I were you I would not remove anything because that would only add confusion.

Best,
Patrick

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[Bug 1327412] Re: Delay during PXE Boot, IP-Config gives up

2016-06-30 Thread patpat
>This has broken DHCP in our environment.
>I suspect it has something to do with dhcp relaying.

If your DHCP relay is broken after this change that means your DHCP
relay needs the client's IP on the yiaddr field and that means you have
a broken DHCP relay.

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[Bug 1327412] Re: Delay during PXE Boot, IP-Config gives up

2016-05-09 Thread patpat
> * debian/patches/broadcast_dhcp_send.patch: set the broadcast 
> bit and yiaddr to 0 (INADDR_ANY) when sending DHCPDISCOVER/
> DHCPREQUEST, as per RFC 2131; section 4.1.

This is OK

>This helps when there is more than one interface 
>trying to do DHCP at the same time.

This is complete nonsense. 
The fixed bug has nothing to do with multi-homed PCs

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[Bug 1327412] Re: Delay during PXE Boot, IP-Config gives up

2016-04-29 Thread patpat
here you have also an old bug (2 years) affecting PXE scenarios when
using CIFS. It was never fixed even when the solution is right there.

seen in:
 ubuntu-14.04-desktop-amd64.iso
 ubuntu-14.04-desktop-i386.iso
 ubuntu-16.04-desktop-amd64.iso
 ubuntu-16.04-desktop-i386.iso

https://bugs.launchpad.net/ubuntu/+source/casper/+bug/1331547

Probably someone here can take a look at it. thanks.

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  Delay during PXE Boot, IP-Config gives up

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[Bug 1331547] Re: No network when PXE booting Live Ubuntu with CIFS

2016-04-28 Thread patpat
just by watching the code it is obvious the export command is missing.

the BUG remains; 
I do not see any "feature" here.

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  No network when PXE booting Live Ubuntu with CIFS

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[Bug 1327412] Re: Delay during PXE Boot, IP-Config gives up

2016-04-27 Thread patpat
I have sent the patch to Debian long ago, 
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=756633
I found Daniel Baumann there who systematically refused to do anything 
on this matter answering very funny things.

I have also sent the patch to the klibc list but it was completely
ignored.

Best,
Patrick

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  Delay during PXE Boot, IP-Config gives up

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[Bug 1327412] Re: Delay during PXE Boot, IP-Config gives up

2016-04-26 Thread patpat
--- a/usr/kinit/ipconfig/dhcp_proto.c
+++ b/usr/kinit/ipconfig/dhcp_proto.c
@@ -201,8 +201,14 @@ static int dhcp_send(struct netdev *dev,
bootp.hlen  = dev->hwlen;
bootp.xid   = dev->bootp.xid;
bootp.ciaddr= INADDR_ANY;
-   bootp.yiaddr= dev->ip_addr;
+   /* yiaddr should always be set to 0 for the messages we're likely
+* to send as a DHCP client: DHCPDISCOVER, DHCPREQUEST, DHCPDECLINE,
+* DHCPINFORM, DHCPRELEASE
+* cf. RFC2131 section 4.1.1, table 5.
+*/
+   bootp.yiaddr= INADDR_ANY;
bootp.giaddr= INADDR_ANY;
+   bootp.flags = htons(0x800);
bootp.secs  = htons(time(NULL) - dev->open_time);
memcpy(bootp.chaddr, dev->hwaddr, 16);


Hallelujah;
you got it done; Thank you!

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[Bug 1327412] Re: Delay during PXE Boot, IP-Config gives up

2016-04-26 Thread patpat
@Mathieu Trudel-Lapierre 
> please check whether this actually fixes the issue.
> this is no guesswork.
Yes it is; I'm saying here for almost 2 years what it has to be done to fix 
this problem and you recommend to see if a partial fix solves the problem or 
not. well...

>Bits can be missed.
Sure but do not make waste my time testing something I know that goes against 
the corresponding RFCs.

>I believe that you misunderstand how klibc on the whole works, 
You are guessing again... I just said "please do not flag this issue as solved 
by a patch that does not work".

>this is why we shouldn't change yiaddr directly in dhcp_send
you wrong again; by RFC2131 all the DHCP traffic generated by a DHCP client 
"must" have  yiaddr = 0, then you can VERY WELL define yiaddr = 0 at dhcp_send()

> I've re-read the spec, and it looks like klibc only ever does a discover and 
> request with the dhcp_send() method; so I'll rework the patch to make this 
> clear and correctly fix the issue.
You just want to re-invent the wheel here; just add the missing line and give 
all of us a break;

>This is the kind of package in which you really need to know what you're doing 
>when making changes.
I do. do you?

>dhcp_send_discover() was doing the right thing for yiaddr: it sets 
>dev->ip_addr = INADDR_ANY; 
>which value will get copied in yiaddr in dhcp_send(), "as it should", except 
>that's only good for dhcp_discover. >dhcp_send_request() also needs to keep 
>track of dev->ip_addr, and shouldn't overwrite it, 
>but still ought to send with yiaddr set to INADDR_ANY.
So??? Are you trying to tell me that you finally understood what's going on 
here ??? 
Did you finally see the problem? well it only takes one line of code to force 
yiaddr to 0 and 
finish with this long story. 

Best,
Patrick

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  Delay during PXE Boot, IP-Config gives up

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[Bug 1327412] Re: Delay during PXE Boot, IP-Config gives up

2016-03-21 Thread patpat
>yiaddr is set elsewhere in the code already (in dhcp_send_discover()
If that is the case it is also wrong; 
I wonder what IP are they using in a DHCP DISCOVERY?? 
that makes absolute not sense for a booting client trying to get an IP.

anyway it seems you are wrong:

int dhcp_send_discover(struct netdev *dev)
{
dev->ip_addr = INADDR_ANY;
dev->ip_gateway = INADDR_ANY;

dprintf("-> dhcp discover ");

return dhcp_send(dev, dhcp_discover_iov);
}

> please check whether this actually fixes the issue.
I encourage you to stop the guesswork and fix this upon what RFC2131 says
(which is pretty clear on this regard,  just see its page 36)
yiaddr must be 0 on packets sent by the client.

I encourage you not to tag this bug as "fix released"

Best,
Patrick

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[Bug 1327412] Re: Delay during PXE Boot, IP-Config gives up

2016-03-21 Thread patpat
Patch sent upstream 
But I think that list is not really active
http://www.zytor.com/pipermail/klibc/2016-March/003923.html

Best,
Patrick

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  Delay during PXE Boot, IP-Config gives up

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[Bug 1327412] Re: Delay during PXE Boot, IP-Config gives up

2016-03-19 Thread patpat
I just recompiled ipconfig "once" and I got it working
I can confirm that   /klibc-2.0.4/usr/kinit/ipconfig/dhcp_proto.c
did not fix this bug yet 

static int dhcp_send(struct netdev *dev, struct iovec *vec)
{
struct bootp_hdr bootp;
char dhcp_hostname[SYS_NMLN+2];
uint8_t padding[BOOTP_MIN_LEN - sizeof(struct bootp_hdr)];
int padding_len;
int i = 4;
int j;

memset(, 0, sizeof(struct bootp_hdr));

bootp.op= BOOTP_REQUEST;
bootp.htype = dev->hwtype;
bootp.hlen  = dev->hwlen;
bootp.xid   = dev->bootp.xid;
bootp.ciaddr= INADDR_ANY;
 -  bootp.yiaddr= dev->ip_addr;   //<<< wrong >>>
 +bootp.yiaddr = INADDR_ANY;// needed
 +bootp.flags = htons(0x800);   // needed
bootp.giaddr= INADDR_ANY;
bootp.secs  = htons(time(NULL) - dev->open_time);
memcpy(bootp.chaddr, dev->hwaddr, 16);

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[Bug 1327412] Re: Delay during PXE Boot, IP-Config gives up

2016-03-19 Thread patpat
It seems the fix is only partial ;

>From RFC2131 (Dynamic Host Configuration Protocol) for a client we have:

FieldDHCPDISCOVER  DHCPREQUEST   DHCPDECLINE,
  DHCPINFORM  DHCPRELEASE
-    ---
  ---
'yiaddr'0  0
   0


but the mentioned patch does not include
-   bootp.yiaddr= dev->ip_addr;
+   bootp.yiaddr= INADDR_ANY;
The patch only adds the flags... Considering it is the client DHCP request the 
yiaddr should be 0 (INADDR_ANY)

***debian/patches/broadcast_dhcp_send.patch***
--- a/usr/kinit/ipconfig/dhcp_proto.c
+++ b/usr/kinit/ipconfig/dhcp_proto.c
@@ -203,6 +203,7 @@ static int dhcp_send(struct netdev *dev,
bootp.ciaddr= INADDR_ANY;
bootp.yiaddr= dev->ip_addr;
bootp.giaddr= INADDR_ANY;
+   bootp.flags = htons(0x800);
bootp.secs  = htons(time(NULL) - dev->open_time);
memcpy(bootp.chaddr, dev->hwaddr, 16);

Best,
Patrick

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[Bug 1327412] Re: Delay during PXE Boot, IP-Config gives up

2016-03-12 Thread patpat
This is an old bug never fixed by Ubuntu, never fixed by Debian either...
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=756633

You have to recompile ipconfig with the patch I wrote above and everything 
works OK.
Hopefully some day Ubuntu and/or Debian will fix this  ;-)

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[Bug 1327412] Re: Delay during PXE Boot, IP-Config gives up

2015-11-27 Thread patpat
PXE booting w/o the ipconfig issue

;  ubuntu-15.10-desktop-amd64.iso
;  ubuntu-15.10-desktop-i386.iso
;  ubuntukylin-15.10-desktop-amd64.iso
;  ubuntukylin-15.10-desktop-i386.iso

requires INITRD_N11.1.GZ

source:
http://www.vercot.com/~serva/an/NonWindowsPXE3.html

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[Bug 1327412] Re: Delay during PXE Boot, IP-Config gives up

2015-11-05 Thread patpat
no news from Ubuntu, your link seems broken...

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[Bug 1327412] Re: Delay during PXE Boot, IP-Config gives up

2015-06-09 Thread patpat
This is the patch that fix this issue...
I have been using this patch for almost a year and works perfectly

static int dhcp_send(struct netdev *dev, struct iovec *vec)
{
...
 - bootp.yiaddr = dev-ip_addr; 
 +bootp.yiaddr = INADDR_ANY;
 +bootp.flags = htons(0x800);
...
}

I have been talking to Debian people (Daniel Baumann, )who have proved their 
complete lack of understanding/interest; they just do not care about this bug.  
Talking to them is wasting my time; hopefully Ubuntu will fix this soon.

NOTE:
Please consider ipconfig needs to know (command line parameter) 
if your server is of type bootp or dhcp, if this parameter is wrong
ipconfig gives up.

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[Bug 1327412] Re: Delay during PXE Boot, IP-Config gives up

2014-08-08 Thread patpat
Additional info
1)
When PXE installing on a VMware Workstation using the VMware DHCP server plus 
Serva as proxyDHCP the bug is not present.
When PXE installing on a real PC with a Netgear ISP router as DHCP plus Serva 
as proxyDHCP the bug is present.

In the first case the VMware DHCP module ignores the bad conformed
ipconfig DHCP request but in the second case the NETGEAR DHCP refuses to
provide the required DHCP parameters.

2) This bug has also been reported upstream
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=756633


Please guys do something with this; today this issue affects virtually all the 
Debian/Ubuntu distros and their derivatives.

** Bug watch added: Debian Bug tracker #756633
   http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=756633

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[Bug 1327412] Re: Delay during PXE Boot, IP-Config gives up

2014-07-31 Thread patpat
** Package changed: initramfs-tools (Ubuntu) = klibc (Ubuntu)

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[Bug 1327412] Re: Delay during PXE Boot, IP-Config gives up

2014-07-31 Thread patpat
I think I have found/solved this bug; 
The problem is located at ipconfig (klibc-utils) not implementing the DHCP 
standard as it should at the file 
/klibc-2.0.3/usr/kinit/ipconfig/dhcp_proto.c

old:
static int dhcp_send(struct netdev *dev, struct iovec *vec)
{
...
bootp.yiaddr= dev-ip_addr;  //this line must be replaced by the 
following two lines
...
}

new:
static int dhcp_send(struct netdev *dev, struct iovec *vec)
{
...
bootp.yiaddr= INADDR_ANY;
bootp.flags = htons(0x800);
...
}

This bug does not affect 100% of the DHCP servers as some of them are more 
forgiving than others with client protocol mistakes;
for those needing a quick solution for PXE booting see/get Serva complementary 
INITRD_N11.GZ which includes the already patched ipconfig

http://www.vercot.com/~serva/an/NonWindowsPXE3.html

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[Bug 1327412] Re: Delay during PXE Boot, IP-Config gives up

2014-07-30 Thread patpat
Very weird bug; 
I have PXE booted over VMWare VM w/o problem but when PXE booting on real 
hardware I got the problem.

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[Bug 1331547] Re: No network when PXE booting Live Ubuntu with CIFS

2014-06-19 Thread patpat
** Summary changed:

- No network when PXE booting with CIFS (Live)
+ No network when PXE booting Live Ubuntu with CIFS

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Title:
  No network when PXE booting Live Ubuntu with CIFS

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[Bug 1331547] [NEW] No network when PXE booting with CIFS (Live)

2014-06-18 Thread patpat
Public bug reported:

the initrd.lz\initrd\scripts\casper script has a bug

function
do_netmount() {

...
if [ ${NETBOOT} != nfs ]  do_cifsmount ; then
rc=0
elif do_nfsmount ; then
NETBOOT=nfs
export NETBOOT
rc=0
fi
...

should be changed to
...
if [ ${NETBOOT} != nfs ]  do_cifsmount ; then
export NETBOOT   ##
rc=0
elif do_nfsmount ; then
NETBOOT=nfs
export NETBOOT
rc=0
fi
...

If we use netboot=cifs the variable NETBOOT is not exported and that impacts
initrd.lz\initrd\scripts\casper-bottom\23networking
that ends up recreating with delay and errors /etc/network/interfaces.
Next when Ubuntu boots Internet/Networking is not available.

seen in 
 ubuntu-14.04-desktop-amd64.iso
 ubuntu-14.04-desktop-i386.iso

** Affects: casper (Ubuntu)
 Importance: Undecided
 Status: New

** Package changed: dia (Ubuntu) = casper (Ubuntu)

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Title:
  No network when PXE booting with CIFS (Live)

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[Bug 1169581] Re: desktop LTS 12.04.2 broken cifs support on install

2013-09-05 Thread patpat
There's even a new annoyance;

ubuntu-12.04.3-desktop-amd64.iso

has a renamed kernel; the old

\casper\vmlinuz

is now called

\casper\vmlinuz.efi

forcing to edit all the working scripts and menus only for the 12.04.3
amd64 version...

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Title:
  desktop LTS 12.04.2 broken cifs support on install

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[Bug 1169581] Re: desktop LTS 12.04.2 broken cifs support on install

2013-09-04 Thread patpat
@mantas

ubuntu-12.04.3-desktop-amd64.iso
ubuntu-12.04.3-desktop-i386.iso

des_generic.ko and md4.ko are still not included within initrd

PXE/CIFS still broken

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Title:
  desktop LTS 12.04.2 broken cifs support on install

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[Bug 1169581] [NEW] desktop LTS 12.04/.2 broken cifs support on install

2013-04-16 Thread patpat
Public bug reported:

desktop LTS 12.04/.2 broken cifs support on install

While initrd.lz includes cifs.ko the modules des_generic.ko and md4.ko
are missing.

CIFS is very handy when PXE booting Ubuntu LTS Desktop live from Windows OSs as 
Serva does it here.
http://vercot.com/~serva/an/NonWindowsPXE3.html

The inclusion of des_generic.ko  and md4.ko within initrd.lz would avoid
the need of loading manually made complementary initrd files.

I hope you guys can add these 2 files for 12.04.3 considering this is an LTS.
Thanks

** Affects: ubuntu
 Importance: Undecided
 Status: New

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Title:
  desktop LTS 12.04/.2 broken cifs support on install

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[Bug 1169581] Re: desktop LTS 12.04/.2 broken cifs support on install

2013-04-16 Thread patpat
The bug is confirmed and it is displayed on install when CIFS services are 
needed; The install aborts.
The solution has been tested and is included in the first post.


** Changed in: linux (Ubuntu)
   Status: Incomplete = Confirmed

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Title:
  desktop LTS 12.04/.2 broken cifs support on install

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[Bug 44194] Re: wpasupplicant doesn't start when the network start

2010-10-18 Thread patpat
I agree 100% with Paul;
I preffer a slower rate on new releases than this mess of unsolved bugs on LTS 
editions...

how can we serioulsy consider an LTS edition if bugs are only solved on
new releases forcing us to upgrade when what we really want is
stability???

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[Bug 131134] Re: When attempting to install lamp-server, returns aptitude failed (100)

2010-07-20 Thread patpat
the above comment is not always true...
8.04 custom install defining new tasks for tasksel, tasksel works ok but when 
invoke apt-get install this one is unable to find the requested task for its 
installation... the tasks are perfectly defined on 
/usr/share/tasksel/ubuntu-tasks.desc but they never get to apt-get cache even 
after a apt-get update, a manual apt-get install xxx_task^ will also fail...

question... when apt-get populates its cache; does ever read
/usr/share/tasksel/ubuntu-tasks.desc ???

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[Bug 349469] Re: debconf: DbDriver config: /var/cache/debconf/config.dat is locked by another process: Resource temporarily unavailable

2010-06-23 Thread patpat
the same thing here on 8.04 tryng to run a humble debconf script...

the proposed solution didn't work , the file has no one locking it...
I've reinstalled debconf  debconf-utils... so far no luck...

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[Bug 569503] Re: errors messages are not ended by \n

2010-05-26 Thread patpat
there you can se what I say...
console on putty com1  final phase of booting

** Attachment added: screen with the problem
   http://launchpadlibrarian.net/49135618/screen.jpg

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[Bug 569503] Re: errors messages are not ended by \n

2010-05-25 Thread patpat
guau... nobody reads this?

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[Bug 569503] Re: errors messages are not ended by \n

2010-04-26 Thread patpat
more info, the problem appears when booting a 8.04.3 headless system, messages 
are routed to a serial console,
When chown fails finding certaing files on /var it sends error messages to 
console with missing carriage returns.

taking a look to the package source it seems al non-interactive utils
use the error routines provided by error.c. this file uses  \n when
writing to stderr but for some reason the serial console requieres the
\r also?

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[Bug 35839] Re: defoptions overwritten by update-grub

2010-04-24 Thread patpat
8.04.3 still has this problem...
'# defoptions=' is NOT empty but update-grub prepends the line with 'quiet 
splash'

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[Bug 569503] [NEW] errors messages are not ended by \n

2010-04-24 Thread patpat
Public bug reported:

Binary package hint: coreutils

When coreutils utilities report errors to console using error.c/error.h
their error messages are not prepended with a new line character, then
the console error report results scrambled...

** Affects: coreutils (Ubuntu)
 Importance: Undecided
 Status: New

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[Bug 569503] Re: errors messages are not ended by \n

2010-04-24 Thread patpat
acually it seems the new line is there the one is missing is the
carriage return...

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