| 09:04 | topi`> | the UBOOT on my mbin lacks "sata" commands, there's just scsi and nothing else. How do I boot it from SATA? |
| 09:05 | topi`> | it seems the UBOOT on mbin is fairly specialised, it has commands like "mss_boot" |
| 09:21 | jnettlet[m]> | topi`: AHCI mode sata is accessed via the SCSI command |
| 09:21 | jnettlet[m]> | same protocol different connector basically |
| 09:22 | jnettlet[m]> | Ke: will get you those. Sorry been very focused on some other work. |
| 09:49 | topi`> | OK |
| 09:53 | topi`> | hmm, "ext2ls scsi 0:5" says Bad device scsi 0 |
| 09:54 | topi`> | ah! it was scsi device 8 |
| 09:54 | topi`> | seems to work, let's load the zImage |
| 09:55 | topi`> | Image-4.4.8-mcbin-marvell, what format is this? uImage? |
| 09:55 | Ke> | does ARM64 now support zImages, I heard there was no decompression implemented in the kernel at linux-4.9 |
| 09:55 | Ke> | what we used on ***board was just Image IIRC, anything else refused to boot |
| 09:57 | topi`> | yeah, I had to use "booti" command to get it to boot |
| 09:58 | topi`> | ata3: SATA link up 6.0 Gbps (SStatus 133 SControl 300) |
| 09:58 | topi`> | seems to work |
| 10:00 | Ke> | nice |
| 10:01 | topi`> | can't log in. Maybe I mounted the wrong partition as root |
| 10:01 | topi`> | yes. THe old password worked. |
| 10:03 | agraf> | Ke: why would you want the kernel to self-compress? |
| 10:03 | suihkulokki> | Ke: on arm64 bootloader is expected to handle decompressing. for example grub does it fine. |
| 10:03 | topi`> | I might want to set up an emergency root on mmcblk0 so that in case of SATA malfunction, I can still boot the board somehow |
| 10:03 | Ke> | agraf: in our case we did not have documentation and there seemed to be awfully few places to put the kernel without killing the bootloader |
| 10:04 | topi`> | is there any easy way to reset the board electrically remotely? the board goes into a dark server room |
| 10:04 | topi`> | maybe I'll set up a raspberry pi next to it, with a fixed ip address |
| 10:05 | Ke> | agraf: in well documented case bootloader decompression is most of the time just as fine, just as long as bootloader does not occupy the physical memory you would want for kernel |
| 10:06 | Ke> | in our case the easy solution was to strip kernel of unneeded parts so did not investigate better solutions |
| 10:06 | topi`> | the brute approach :) |
| 10:06 | agraf> | Ke: i see, so you wanted to reduce the chance to clash with boot loader reserved memory by having the kernel image compressed |
| 10:06 | Ke> | agraf: no we literally tried a couple of locations and boot failed |
| 10:07 | agraf> | Ke: in a sane world you have uefi memory maps which tell you exactly what regions are available - that way you can always take a region that is guaranteed to be unused |
| 10:07 | agraf> | Ke: what boot loader did you have on that system? |
| 10:07 | Ke> | u-boot -variant |
| 10:07 | Ke> | also no uefi |
| 10:07 | agraf> | Ke: k, i see :) |
| 10:07 | agraf> | Ke: well - recent u-boot supports uefi interfaces |
| 10:08 | agraf> | Ke: but that doesn't mean that the board vendor went through the effort to actually mark all used dram ranges as reserved (atf, random embedded controllers, etc) |
| 10:08 | Ke> | we even had the sources, we could have just recompiled |
| 10:09 | Ke> | anyway recompiling the kernel was the solution we were most familiar with anyway |
| 10:10 | agraf> | sure, that doesn't help a lot if you can't load it though ;) |
| 10:10 | topi`> | stick with the familiar things |
| 10:10 | topi`> | unless you're willing to spend the whole month on the thing ;) |
| 10:10 | agraf> | Ke: but yeah, going forward a good bunch of that stuff *should* get easier, let's see how much of it plays out :) |
| 10:11 | Ke> | hopefully |
| 10:11 | agraf> | suihkulokki: btw, have you see? rob got the uefi shell working in u-boot :) |
| 10:12 | topi`> | is uefi property of Intel, like EFI is? |
| 10:13 | agraf> | nope - that's what the u stands for ;) |
| 10:13 | agraf> | u means "not proprietary" ;) |
| 10:15 | topi`> | Unproprietary |
| 11:16 | Ke> | jnettlet[m]: and thanks, that's fine =o) |
| 11:18 | suihkulokki> | agraf: cool :) |
| 12:01 | topi`> | SATA link 1 timeout. |
| 12:02 | topi`> | I get this twice, and it cannot find my SATA drive which is in sata 8 |
| 12:02 | topi`> | unless I manually say "scsi rescan" |
| 12:02 | topi`> | any idea? |
| 17:39 | jnettlet[m]> | topi` not sure. Haven't tested that. Perhaps spin up time. |