Bug 172550
| Summary: | stage booting via grub and loader does not work any more after revision 241053 | ||
|---|---|---|---|
| Product: | Base System | Reporter: | Ralf Wenk <IZ-FreeBSD0701> |
| Component: | kern | Assignee: | Andrey V. Elsukov <ae> |
| Status: | Closed FIXED | ||
| Severity: | Affects Only Me | ||
| Priority: | Normal | ||
| Version: | 10.0-CURRENT | ||
| Hardware: | Any | ||
| OS: | Any | ||
Responsible Changed From-To: freebsd-bugs->ae Take. This is a multi-part message in MIME format. Hi Andrey, > Can you please do several test to help debug this issue? sure. > I need to know these things: > 1. With working loader, can you escape into the loader prompt and look,= > what values have currdev and loaddev variables? You can do this with > =60show=60 command. OK show currdev disk0p7: OK show loaddev disk0p7: > 2. With recent loader that doesn't work with your system do the same st= eps. OK show currdev disk0p7: OK show loaddev disk0p7: =20 > Also can you run =60lsdev=60 command and make sure that all partitions = will > shown in both cases? Also if you have some free time, can you try the 1. working loader: OK lsdev cd devices: disk devices: disk0: BIOS drive C: disk0s1: Linux disk0s1: DOS/Windows disk0s3: DOS/Windows disk0s4: Unknown disk0s5: Linux disk0s6: Linux swap disk0s7: FreeBSD disk0s7a: FreeBSD UFS pxe devices: OK 2. recent loader: OK lsdev cd devices: disk devices: disk0: BIOS drive C: disk0s1: Linux disk0s1: DOS/Windows disk0s3: DOS/Windows disk0s4: Unknown disk0s5: Linux disk0s6: Linux swap disk0s7: FreeBSD disk0s7a: FreeBSD UFS pxe devices: OK > loader, that is attached to this email? It compiled with enabled > DISK_DEBUG support and will print several additional lines to the > console. And if you will able to take a screenshot or photo, or log fro= m > serial console, this will be very helpful. After the loader stops the screen looks: FreeBSD/x86 bootstrap loader, Revision 1.1 (butcher=40butcher-nb, Fri Oct 19 18:34:36 MSK 2012) disk_open: disk0p7: unit 0, slice 7, partition 255 =3D> 0xdcd48680 disk_open: disk0p7: could not open disk_open: disk0p7: unit 0, slice 7, partition 255 =3D> 0xdcd48680 disk_open: disk0p7: could not open disk_open: disk0p7: unit 0, slice 7, partition 255 =3D> 0xdcd48680 disk_open: disk0p7: could not open disk_open: disk0p7: unit 0, slice 7, partition 255 =3D> 0xdcd5f230 disk_open: disk0p7: could not open disk_open: disk0p7: unit 0, slice 7, partition 255 =3D> 0xdcd5f230 disk_open: disk0p7: could not open disk_open: disk0p7: unit 0, slice 7, partition 255 =3D> 0xdcd5f230 disk_open: disk0p7: could not open disk_open: disk0p7: unit 0, slice 7, partition 255 =3D> 0xdcd5f230 disk_open: disk0p7: could not open disk_open: disk0p7: unit 0, slice 7, partition 255 =3D> 0xdcd5f230 disk_open: disk0p7: could not open disk_open: disk0p7: unit 0, slice 7, partition 255 =3D> 0xdcd5f230 disk_open: disk0p7: could not open can't load 'kernel' Type '?' for a list of commands, 'help' for more detailed help. OK The value of the currdev and loaddev variables is 'disk0p7:'. lsdev shows: OK lsdev cd devices: disk devices: disk0: BIOS drive C: disk_open: disk0: unit 0, slice -1, partition -1 =3D> 0xdcd5f280 disk_insert: disk0: cached disk_open: disk0: offset 0 =3D> 0xdcd5f280 disk0s1: Linux disk0s1: DOS/Windows disk0s3: DOS/Windows disk0s4: Unknown disk0s5: Linux disk0s6: Linux swap disk0s7: FreeBSD disk0s7a: FreeBSD UFS disk_close: disk0: closed =3D> 0xdcd5f280 =5B1=5D pxe devices: OK Kind regards, Ralf State Changed From-To: open->closed Fixed in r241876. Thanks! |
loader(8) does not find the kernel any more after revision 241053. The message shown is "can't load 'kernel'". Comparing the show-command output between a loader build at Sep 3 2012 and Oct 5 2012 shows that a lot of variables (e.g. "kernelname") are missing. Fix: Reverting revision 241053 fixes the problem. I just build loader with the pre 241053 versions of sys/boot/common/disk.c, sys/boot/common/disk.h and sys/boot/i386/libi386/biosdisk.c and it worked again as expected. How-To-Repeat: This machine uses multiboot with grub as bootloader. The menuentry in grub.cf for FreeBSD which used to work is menuentry "FreeBSD, via /boot/loader (on /dev/sda7[a])" { # set root=(hd0,7,a) set root=(hd0,7) kfreebsd /boot/loader } The partition layout as shown by gpart is: # gpart show => 63 312581745 ada0 MBR (149G) 63 674667 1 linux-data (329M) 674730 1110 - free - (555k) 675840 1536000 2 ntfs (750M) 2211840 5130 - free - (2.5M) 2216970 65529135 3 ntfs [active] (31G) 67746105 244830600 4 ebr (116G) 312576705 5103 - free - (2.5M) => 0 244830600 ada0s4 EBR (116G) 0 65529135 1 linux-data (31G) 65529135 7823655 1040146 linux-swap (3.7G) 73352790 65529135 1164331 freebsd (31G) 138881925 105948675 - free - (50G) => 0 65529072 ada0s7 BSD (31G) 0 65529072 1 freebsd-ufs (31G) #