From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Wed, 21 Nov 2007 17:29:26 +0100 To: 9fans@cse.psu.edu Message-ID: <20071121162925.GA14392@lisa.galaxy> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline From: frank@inua.be (Frank Lenaerts) Subject: [9fans] panic Topicbox-Message-UUID: 076e22a0-ead3-11e9-9d60-3106f5b1d025 Hi, Yesterday, I downloaded the Plan 9 live CD and tried to boot it on a Fujitsu-Siemens Scenic PC (which is about 2 years old). Unfortunately, booting from the CD fails: --- begin --- ... ... Plan 9 E820: ... panic: vmap: va=0xf0400000 pa=0x00400000 pde=0x00400083 panic: vmap: va=0xf0400000 pa=0x00400000 pde=0x00400083 dumpstack disabled cpu0: exiting --- end --- Not knowing where to start looking for the possible cause, I just googled for the panic line and found a post in an old archive[*]. This person mentions that in his case the everything seemed ok when *noe820scan is specified. As this machine does not have a floppy drive and I do not want to burn a new CD just to modify plan9.ini, I tried to boot the system using PXE (from a Linux machine running a dhcp and tftp server). The intention was to get 9pxeload to load a plan9.ini file from the Linux machine and to then continue booting from the CD (i.e. trying to pass the *noe820scan to the kernel). To do this, I did the following: - configured the dhcp server (MAC, filename...) - put 9pxeload in place - modified plan9.ini so that it contains *noe820scan and renamed it to the MAC address of the NIC Booting the PC using PXE loads 9pxeload but the plan9.ini file is not found: --- begin --- initial probe, to find plan9.ini...pcirouting: ... Boot devices: fd0 boot from: --- end --- The 9load manpage says that the file should be put in /cfg/pxe (which I then created under /tftpboot on the Linux box). I thought that 9pxeload would request /cfg/pxe/ using TFTP but even that does not seem to be the case i.e. it seems as if 9pxeload doesn't request any file using TFTP... Could somebody explain me how it is supposed to work? [*] http://lists.cse.psu.edu/archives/9fans/2006-July.txt Kind regards, -- Frank Lenaerts ---------------------------------------- frank@inua.be