Hello Robert, Thank you for the reply. Let me first make sure that I have followed the correct procedure for booting from eSATA. Please review and let me know if I did anything wrong or I missed a step...
1. R444 resistor removed 2. Jumper placed on J3 between 1-2 and soldered 3. X15 debian image downloaded unzipped and image written to SATA via dd. 4. eSATA cable connected to X15 and SATA drive and attempted to power on and boot. This procedure failed as I mentioned in the original post. Thre is mention of removing R442-R444 in the reference manual. Was I supposed to remove R442 R443 and R444 and just place the single jumper on J3 between 1 and 2? This is what the reference manual implied and I'm interpretting the reference manual to place jumpers on J4 between 2-3 and on J6 between 2-3. This is how I am interpretting the instructions on the official reference manual. However, I was advised by another post to just remove the R444 resistor and jump J3 between 1-2. If I made the hardware modifications correctly this leaves me with the issue of a board that does not boot and there is no way of going back to soldering the original resistor (destroyed during removal). No access to eMMC and a dead board. I have not tried burning the same image to an SD card and hope it boots. I can try that next but I have a gut feeling that would fail as well. So, I don't have a way of implementing your instructions above without a functional eMMC and ability to boot from SATA or potentially inability to boot from SD either? Will future debian images include the boot software instead of having to install them? This may be my only option. Any other advice would be greatly appreciated. Thanks again for your intruction and response. Marc On Sunday, October 1, 2017 at 3:35:35 PM UTC-5, RobertCNelson wrote: > > On Sun, Oct 1, 2017 at 10:05 AM, <mab.mo...@gmail.com <javascript:>> > wrote: > > Sounds like I may missing something. I'm assuming u-boot would be on the > > debian image written to the SATA drive via dd? > > Sure, if you "patch" u-boot and "build" it for that situation, it > would work. The current U-Boot binary we ship for the debian images > does NOT support booting from the esata drive. Initially we did > support loading u-boot from the microSD and then scanning the sata for > a secondary rootfs but ran into compatibly problems with crappy sata > drives.. > > > Do I need to install this > > separetly? The Beagle Bone Black is pretty straight foreward with good > > documentation. The X15 is not. Are there any more detailed instructions > > on-line that can take me through the install/boot process via eSATA. The > > reference manual documentation is not adequate. > > Here's the documentation: > > What you "can" do, start with our image on the eMMC, run the > 'mv_rootfs_dev_sda.sh" script found under > /opt/scripts/tools/non-mmc-rootfs/ > > > https://github.com/RobertCNelson/boot-scripts/blob/master/tools/non-mmc-rootfs/mv_rootfs_dev_sda.sh > > > After this you have two options to load from the sata drive: > > Option 1: (u-boot, kernel, device tree is loaded from eMMC/microSD, > but rootfs = sata) > > Then edit /boot/uEnv.txt and have the uuid=ZYZ point to your /dev/sda1 > partition. > > Option 2: (u-boot, is loaded from eMMC/microSD, but sata = kernel, > device tree, rootfs) > > Follow these directions: > > > http://eewiki.net/display/linuxonarm/BeagleBoard-X15#BeagleBoard-X15-Bootloader:U-Boot > > > and change these lines in the patch: > > > https://github.com/RobertCNelson/Bootloader-Builder/blob/master/patches/ti-2017.01/0001-beagle_x15-uEnv.txt-bootz-n-fixes.patch#L1442-L1444 > > > + "echo usb_boot is currently disabled;" \ > + "setenv interface scsi; " \ > + "echo scsi_boot is currently disabled;" \ > > to: > > + "run usb_boot;" \ > + "setenv interface scsi; " \ > + "run scsi_boot;" \ > > and the U-Boot loaded over the microSD/eMMC will scan the usb bus and > sata bus.. (usb bus powers the sata bus, so it has to be run first).. > > But be forewarned, Option 2 turned out to be a little un-reliable, > especially which cheap sata drives... (things might get better when > we jump from u-boot v2017.01 -> v2017.11 in the coming weeks) > > Regards, > > -- > Robert Nelson > https://rcn-ee.com/ > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/a9087f85-0793-4899-9127-bc0886105a2a%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
