Yeah, that is it. Thanks a lot for reminding me. That brought me a step further. sda now is detected and init starts, though I have some other problem now. Great, thanks again.
Andreas -------- Original Message -------- Subject: [Clfs-support] Kernel unable to mount root fs From: Petric Frank <[EMAIL PROTECTED]> To: [email protected] Date: Donnerstag, 06. Dezember 2007 09:37:21 > Hello, > > only a guess - do you see your hard disk (i.e. flash) listed on the screen > when booting ? > > I often boot from an external USB hard disk and it takes often a few seconds > between loading the USB support by the kernel and detecting the hard disk. > So i added a kernel parameter "rootdelay=<delay>" to grubs's menu.lst. With > this option the kernel waits <delay> seconds to give the USB subsystem the > chance to detect the USB hard disk. > > Hope that helps. > > regards > Petric > > On Donnerstag, 6. Dezember 2007, Andreas Hofer wrote: >> Good morning folks, >> >> I finally managed to install CLFS (embedded version, following the book) >> onto a USB (flash) disk and also configured GRUB. But, the boot process >> stops when the kernel tries to mount the root filesystem. The kernel >> messages are: >> >> ============================================================ >> VFS: Cannot open root device "sda1" or unknown-block(0,0) >> Please append a correct "root=" boot option >> Kernel panic - not syncing: VFS: Unable to mount root fs on >> unknown-block(0,0) >> ============================================================ >> >> The relevant entry in GRUB's menu.lst is: >> kernel /boot/clfskernel-2.6.20.1-DMP root=/dev/sda1 >> >> The root partition is of type ext2, so I included e2fs_stage1_5 in >> /boot/grub. >> >> Since the disk is a USB flash device, the kernel has following feature >> compiled in: >> >> Device drivers / USB support : >> Support for Host-side USB >> USB device filesystem >> EHCI HCD (USB 2.0) support >> OHCI HCD support >> USB mass storage support >> Device drivers / SCSI device support : >> SCSI device support >> SCSI disk support >> File systems: >> Second extended fs support >> Ext3 journaling file system support >> >> I thought I had everything "on board" to mount the root fs. >> >> Any idea somebody? >> >> Andreas >> >> _______________________________________________ >> Clfs-support mailing list >> [email protected] >> http://lists.cross-lfs.org/listinfo.cgi/clfs-support-cross-lfs.org > > > _______________________________________________ > Clfs-support mailing list > [email protected] > http://lists.cross-lfs.org/listinfo.cgi/clfs-support-cross-lfs.org > _______________________________________________ Clfs-support mailing list [email protected] http://lists.cross-lfs.org/listinfo.cgi/clfs-support-cross-lfs.org
