similar to: Best way to deal with an idiosyncracy of Intel Boot Agent (IBA)...

On Tue, Mar 18, 2014 at 1:02 AM, Spike White <spikewhitetx at gmail.com> wrote: > I have a question on how to deal with a quirk of the Intel Boot Agent. > Both for PXE boots and for EFI boots. > > I've noticed this IBA quirk for years. According to the "DHCP options" > RFC, variable length DHCP options are not necessarily null-terminated. > So if I specify

All, I have a question on how to deal with a quirk of the Intel Boot Agent. Both for PXE boots and for EFI boots. I've noticed this IBA quirk for years. According to the "DHCP options" RFC, variable length DHCP options are not necessarily null-terminated. Here's the details: >From DHCP Options and BOOTP Vendor Extensions (http://tools.ietf.org/html/rfc2132#section-2)

On Tue, 2014-03-18 at 00:02 -0500, Spike White wrote: > So if I specify Bootfile name (option 67), frequently that's the last real > DHCP option. Thus the next byte is the DHCP "end option" aka 255. The IBA > code mistakenly parses this as "/boot/efi.x64/syslinux.efi^X", where ^X > is a char with value 0xFF (255). It requests this filename from the TFTP

On Fri, Mar 7, 2014 at 6:01 PM, Jeffrey Hutzelman <jhutz at cmu.edu> wrote: > On Fri, 2014-03-07 at 17:46 -0500, Gene Cumm wrote: >> On Fri, Mar 7, 2014 at 4:00 PM, Jeffrey Hutzelman <jhutz at cmu.edu> wrote: >> > On Fri, 2014-03-07 at 05:49 -0500, Gene Cumm wrote: >> >> >> 1) Thinking about the responses again, I'm absolutely surprised that

On Fri, Mar 7, 2014 at 4:00 PM, Jeffrey Hutzelman <jhutz at cmu.edu> wrote: > On Fri, 2014-03-07 at 05:49 -0500, Gene Cumm wrote: >> 1) Thinking about the responses again, I'm absolutely surprised that >> you can even boot PXELINUX. I would have expected the response from >> the Altiris server to override your attempts to block it. > > Nope. The PXE spec

When in VGA graphics mode, BIOS int 10h ah=09h doesn't seem to treat high-order attribute bits as a background color; instead, it apparently always uses black. This means that a background color requested via <SI> in a DISPLAY file is not honored in VGA mode. However, the BIOS supports an "XOR" mode, in which the pixels to be written are XORed with pixels already on the

When Syslinux is running in a VMWare virtual machine and Ctrl-P is typed while editing the boot command line, insert the contents of VMware's clipboard. This allows text to be copied from the host (or wherever the console client is running) into Syslinux. Signed-off-by: Jeffrey Hutzelman <jhutz at cmu.edu> --- core/ui.inc | 72

As subject says: With Intel PXE stack version 4.x (stack identifies itself in BIOS as IBA 4.0.x or 4.1.x), pxelinux' localboot option hangs instead of going to BIOS. This does not happen with older PXE stack. I have a feeling that the this broke somewhere in version 2.x - I *believe* 1.75 PXELINUX works fine - but haven't had a chance to try again. -alex

----- Original Message ----- From: Jeffrey Hutzelman <jhutz at cmu.edu> > The "bstrap.0" file is a small NBP that > handles the menu when booting from old PXE clients that don't implement > the menu-related parts of the protocol.? But even with bstrap.0, the > menu stuff doesn't work if the menu-related options weren't in whichever > DHCP response gets

On Fri, 2014-03-07 at 17:46 -0500, Gene Cumm wrote: > On Fri, Mar 7, 2014 at 4:00 PM, Jeffrey Hutzelman <jhutz at cmu.edu> wrote: > > On Fri, 2014-03-07 at 05:49 -0500, Gene Cumm wrote: > > >> 1) Thinking about the responses again, I'm absolutely surprised that > >> you can even boot PXELINUX. I would have expected the response from > >> the

On Thu, Dec 4, 2014 at 11:40 PM, Jeffrey Hutzelman <jhutz at cmu.edu> wrote: > On Thu, 2014-12-04 at 21:26 -0500, Gene Cumm wrote: > >> > Thanks, that works! How do I use that in the generic case? >> > The ?pxebsd.0? file can be called as? >> > >> > ? PXE loader >> > ? COMBOOT (16-bit) >> > ? DOS .COM >> > ? Multiboot

On Thu, Mar 6, 2014 at 11:20 AM, Jeffrey Hutzelman <jhutz at cmu.edu> wrote: > On Wed, 2014-03-05 at 13:18 -0500, Gene Cumm wrote: > >> Second, I notice the Altiris server specifies _3_ options of code 43, >> including one of length 253. The pack/unpack _should_ handle this but >> may split it differently. > > That's legal, and treated as if the values had

Running CentOS Linux 5 with sendmail-procmail putting email in /var/spool/mail. I'm running pop3 only with the servers configured to authenticate with ldap (which is configured and running OK). I do have this same configuration on an older FC6 box and it works fine. I'm thinking I just need to upgrade dovecot given all the nss_ldap problems it has had, but I hate not using RPM

Running CentOS Linux 5 with sendmail-procmail putting email in /var/spool/mail. I'm running pop3 only with the servers configured to authenticate with ldap (which is configured and running OK). I do have this same configuration on an older FC6 box and it works fine. I'm thinking I just need to upgrade dovecot given all the nss_ldap problems it has had, but I hate not using RPM

I'm following along with John T's examples book and I'm still befuddled on getting Samba working. The server is Fedora Core 5, Samba 3.0.23a-1.fc5.1 PDC is W2K SP4 with AD I basically copied/pasted the example smb.conf and nsswitch.conf to get a basic working config. The lines "template primary group" gave problems so I removed that one line. I run testparm -s and get:

Don't know what else to call this. Googling and some time on the IRC channel haven't gotten me anywhere. Here's the sitch, which is a bit complicated but is something my customers are in fact encountering on an everyday basis: 1. Bob is on a Zap channel talking through the PSTN to Carol. Both have the misfortune, like so many of us, of having LECs who do not offer disconnect

On Sat, 2014-01-11 at 06:31 -0500, Gene Cumm wrote: > On Sat, Jan 11, 2014 at 12:12 AM, Ronald F. Guilmette > <rfg at tristatelogic.com> wrote: > > > Unfortunately, regardless of whether I perform Step #4 (i.e. running > > the "makeboot.bat" script) while logged in as a user with Admin privs, > > > Accessing physical drive: Access is denied.

Dear Sir and Madam: I'm writing to you on behalf of the MIT Kerberos team and several other parties interested in the availability of Kerberos authentication for the SSH protocol. We recently noticed that the OpenSSH developers had added support for the kerberos-2 at ssh.com user authentication mechanism. We are delighted but we believe additional steps are necessary, as explained

Hi Could someone explain what this strings mean in dovecot 2.1.3 debug log? Mar 27 11:18:11 cartman dovecot: auth: Debug: master in: USER 1 test1 at example.net service=lib-storage Mar 27 11:18:11 cartman dovecot: auth: Debug: master in: USER 2 test2 at example.net service=lib-storage -- View this message in context:

Most excellent! The pre-compiled syslinux6.03-pre6 binaries work great! I'm able to load syslinux.efi and all necessary support libs. I get my expected syslinux boot menu. I've used syslinux 5 / vesamenu for yrs (Legacy PXE boots). So I know my way around from here. Thanks Gene & Feri. And thanks Peter, for making me feel better -- it's the TFTP protocol that's bizarre, I