Victor Sologoubov
2019-Jan-16 06:44 UTC
[syslinux] A bug in command localboot was introduced in version 6.03.
A bug in command localboot was introduced in version 6.03. This bug was created because of inserting memsets in core/localboot.c. The third memset before /* Read one sector */ clears the field ireg.edx, which was assigned earlier and is required for subsequent __intcall0x13. So localboot type works as localboot 0. I think, this third memset in core/localboot.c is useless and excessive.
Erwan Velu
2019-Jan-19 21:35 UTC
[syslinux] A bug in command localboot was introduced in version 6.03.
Can you detail what bug that introduce ? Behavior with the current code and with your change proposal ? That's pretty unclear for me. Thanks ! Le mer. 16 janv. 2019 ? 07:46, Victor Sologoubov via Syslinux <syslinux at zytor.com> a ?crit :> > A bug in command localboot was introduced in version 6.03. > This bug was created because of inserting memsets in core/localboot.c. > The third memset before /* Read one sector */ clears the field ireg.edx, > which was assigned earlier and is required for subsequent __intcall0x13. > > So localboot type works as localboot 0. > > I think, this third memset in core/localboot.c is useless and excessive. > _______________________________________________ > Syslinux mailing list > Submissions to Syslinux at zytor.com > Unsubscribe or set options at: > http://www.zytor.com/mailman/listinfo/syslinux
Victor Sologoubov
2019-Jan-21 07:43 UTC
[syslinux] A bug in command localboot was introduced in version 6.03.
I created a bootable usb flash with boot menu. One of items was "Boot from hard drive" with command "localboot 0x81". This item worked when this usb flash was prepared with syslinux 6.02. And it stopped working when the flash was prepared with syslinux 6.03. The message was Booting from local disk... Boot error I extracted the source code, investigated, changed, compiled and used for the flash. This menu item works again. 20.01.2019 0:35, Erwan Velu writes:> Can you detail what bug that introduce ? > Behavior with the current code and with your change proposal ? > That's pretty unclear for me. > Thanks ! >
Seemingly Similar Threads
- A bug in command localboot was introduced in version 6.03.
- A bug in command localboot was introduced in version 6.03.
- A bug in command localboot was introduced in version 6.03.
- A bug in command localboot was introduced in version 6.03.
- A bug in command localboot was introduced in version 6.03.