Douglas McClendon
2008-Jan-14 18:38 UTC
[syslinux] crazy isolinux bug?- cmdline truncated only on vaio vgn-n250e
Ok, this is crazy, but I have a livedvd I created with fedora-8's syslinux-3.36-7.fc8 and when I boot under qemu ( -boot d -cdrom /dev/dvd) it boots just fine, but when I boot it on the actual hardware (vaio vgn-n250e), the kernel cmdline gets truncated at about the 99th character, causing problems. The same exact physical livedvd booted on a different box does not get truncated. The stock fedora f8 livecd on the vaio does not get truncated (even when I make the cmdline ridiculously long). I'm pretty sure prior (and probably subsequent) livedvds have not had this problem. Anything I should do to help determine if this is an isolinux, or a hardware bug? I ran memtest86 for a little while and it didn't fail. -dmc
H. Peter Anvin
2008-Jan-15 03:24 UTC
[syslinux] crazy isolinux bug?- cmdline truncated only on vaio vgn-n250e
Douglas McClendon wrote:> Ok, this is crazy, but I have a livedvd I created with fedora-8's > > syslinux-3.36-7.fc8 > > and when I boot under qemu ( -boot d -cdrom /dev/dvd) it boots just > fine, but when I boot it on the actual hardware (vaio vgn-n250e), the > kernel cmdline gets truncated at about the 99th character, causing problems. > > The same exact physical livedvd booted on a different box does not get > truncated. > > The stock fedora f8 livecd on the vaio does not get truncated (even when > I make the cmdline ridiculously long). > > I'm pretty sure prior (and probably subsequent) livedvds have not had > this problem. > > Anything I should do to help determine if this is an isolinux, or a > hardware bug? I ran memtest86 for a little while and it didn't fail. >Could you upgrade isolinux to either 3.55 or 3.60? There was a bug fix in 3.50 which may have this result. -hpa