Thanks! I will take a look at U-BOOT. BTW: Could you please tell me what's the diffence among U-BOOT, REDBOOT, and YAMON? Thanks again! > --- Wolfgang Denk <wd@xxxxxxx> wrote: > > In message > > > <20050401071559.69834.qmail@xxxxxxxxxxxxxxxxxxxxxxxxxxx> > > you wrote: > > > > Don't re-invent the wheel. Consider using > > (porting) > > > > U-Boot. > > > > > > BTW, do you know how big is U-Boot ? > > > > Sure :-) > > > > This depends on which features you have on your > > board and configure > > into U-Boot. Typical image sizes are 150...200 kB > > with most features > > enabled (network support including TFTP, DHCP, > NFS; > > hush shell with > > the capability to run shell scripts; support > for > > IDE, CompactFlash > > cards, USB (memory sticks), NAND flash; support > for > > DOS, ext2 and > > JFFS2 filesystems; graphical display on LCD/VGA, > > splash screen etc. > > etc.). The biggest configuration I am aware of > at > > the moment is > > 280kB; small configurations can be fit in 128 kB; > if > > you really throw > > out everything you can get rid of you may even > make > > it fit into 64kB. > > As mentioned before: this depends on > > architecture and hardware > > features that have to be supported. > > > > > > And referring to the original question: of > course > > U-Boot supports > > booting of compressed images (kernel, ramdisk, > > other) uzing gzip or > > gzip2 compression. > > > > Best regards, > > > > Wolfgang Denk > > > > -- > > Software Engineering: Embedded and Realtime > > Systems, Embedded Linux > > Phone: (+49)-8142-66989-10 Fax: > (+49)-8142-66989-80 > > Email: wd@xxxxxxx > > Respect is a rational process > > -- McCoy, "The Galileo Seven", stardate 2822.3 > > > > > > _________________________________________________________ > Do You Yahoo!? > 150万曲MP3疯狂搜，带您闯入音乐殿堂 > http://music.yisou.com/ > 美女明星应有尽有，搜遍美图、艳图和酷图 > http://image.yisou.com > 1G就是1000兆，雅虎电邮自助扩容！ > http://cn.rd.yahoo.com/mail_cn/tag/1g/*http://cn.mail.yahoo.com/event/mail_1g/ > _________________________________________________________ Do You Yahoo!? 150万曲MP3疯狂搜，带您闯入音乐殿堂 http://music.yisou.com/ 美女明星应有尽有，搜遍美图、艳图和酷图 http://image.yisou.com 1G就是1000兆，雅虎电邮自助扩容！ http://cn.rd.yahoo.com/mail_cn/tag/1g/*http://cn.mail.yahoo.com/event/mail_1g/
