@Stephan Beck, Sorry, English isnt good enough, may be it's hard to get what i really mean :(
If you really follow the installation guide > ch04s03.html.en#usb-copy-flexible, you have to create a syslinux.cfg > yourself, there is no existing syslinux.cfg (content), > There was no existing syslinux.cfg. I followed the instruction, I created the syslinux.cfg. I wrote these lines into syslinux.cfg : 1: default vmlinuz 2: append initrd=initrd.gz I tried to boot the USB, and it complained about having a 'kernel panic - vfs unable to ... ' I then edit the syslinux.cfg, replaced them with these four lines: 1: default debi 2: label debi 3: kernel vmlinuz 4: append initrd=initrd.gz and the USB disk booted normally, no complain, and proceed to the installation menu. Doing it the flexible way, the content of the syslinux.cfg to be created > should be (it's from the stick I used for a real installation, so > priority=medium is optional) : > > default vmlinuz initrd=initrd.gz priority=medium > After having debian installed on my machine, I formatted my USB disk, I haven't tried your suggestion, but it should work. My purpose writing this is to confirm that those two lines from https://www.debian.org/releases/stable/amd64/ch04s03. html.en#usb-copy-flexible didn't work out for me. The installation guide might need a tiny fix... (If I'm not wrong) Debian Jessie itself uses syslinux version 6.03. Creating a USB boot disk using those two lines in syslinux.cfg will not work. Refer to the official syslinux site http://www.syslinux.org/wiki/i ndex.php?title=Directives/append > Take the following simple configuration: > > DEFAULT mykernel > APPEND root=/dev/sda2 > > Note that the APPEND line here is a *global* directive, as it is not part > of any LABEL entry. > > For Syslinux 4.xx and older, the above simple configuration works as (it > used to be) expected. > *Since version 5.00,* the result for the above sample configuration is > that the *root=/dev/sda2* argument is not parsed, which will lead to > unexpected results, most probably with some kind of failure to boot the OS. > In other words, the *global* APPEND is ignored by the DEFAULT directive. > Regards, Bill
