Bug 805747

I am running f16-x86_64 on my m14x right now, and grub2 is working fine. I installed with the Live CD and am dual-booting with Windows. Maybe something went wrong with the install from the DVD? I don't think it's a hardware/BIOS issue.

Does installing from the Live CD help?

Thanks!
I am install fedora16 in usb drivers,I connect this hard disk into thinkpad e420 laptop is fine.
fedora15  can run fine in my m14x with grub

What is the status here? Was it just a spurious problem? Or do you still see something that looks like a grub2 bug?

Can you try in text mode (by uncommenting GRUB_TERMINAL=console in etc/deault/grub) ?

Same issue on HP Pavilion dv6-6031er

Fedora 17 x86_64 was installed on external USB drive.
During installation there is no problem was encountered.

After reboot it freeze on message "Welcome to GRUB!"

As was mentioned above I've boot in troubleshoot mode from DVD. Chrooted to /mnt/sysinstall
Added GRUB_TERMINAL=console in /etc/default/grub and run grub2-mkconfig -o /boot/grub/grub.cfg
But it does not solve problem.

Can anybody advise what should be done to troubleshoot this freeze?

The path to grub.cfg is wrong

I'm sorry,

Here is correction:

>> chroot /mnt/sysimage
>> grub2-mkconfig -o /boot/grub2/grub.cfg

Of course /boot/grub/ is incorrect. It contains only splash file.

You can try installing with --debug-image=all

It freeze on
...
partmap/gpt:111
kern/fs.c :55: Detecting ext2...


The strange thing that it repeats at least 3 times (it is what I saw on display) on  screen then hangs.

And it always try hd0, while I've installed on /dev/sdb and during notebook boot I've explicetely selected external USB drive to boot from.

Most BIOSes make boot device hd0 independently of its position on the bus. Could you try (as root) grub2-fstest /dev/sdb ls -- -l ?

Output:

Device loop0: No known filesystem detected - Total size 488397165 sectors
Partition loop0,gpt3: No known filesystem detected - Partition start at 1028096 - Total size 487368704 sectors
Partition loop0,gpt2: Filesystem type ext2 - Last modification time 2012-06-05 19:52:35 Tuesday, UUID 02b34544-6973-4454-825d-e3ec5ebbaca8 - Partition start at 4096 - Total size 1024000 sectors
Partition loop0,gpt1: No known filesystem detected - Partition start at 2048 - Total size 2048 sectors
Device Host: Filesystem type hostfs - Total size 0 sectors
Device lvm/vg_fedya17-lv_root: Filesystem type ext2 -  Last modification time 2012-06-05 19:52:33 Tuesday, UUID f29..skip... - Total size 104857600 sectors
Device lvm/vg_fedya17-lv_home: Filesystem type ext2 -  Last modification time 2012-06-05 19:52:35 Tuesday, UUID 192..skip... - Total size 370671616 sectors
Device lvm/vg_fedya17-lv_swap: No known filesystem detected - Total size 11796480 sectors

Any news on this?
If something wrong with fs?
I would like to add that such situation appears after Fedora 17 clean install on external USB drive.

No, can you look for references as to which file it tried to open? This patch will print it systematically:
=== modified file 'grub-core/kern/file.c'
--- grub-core/kern/file.c	2012-05-01 13:08:29 +0000
+++ grub-core/kern/file.c	2012-06-09 09:40:34 +0000
@@ -67,6 +67,8 @@ grub_file_open (const char *name)
   char *file_name;
   grub_file_filter_id_t filter;
 
+  grub_dprintf ("file", "opening `%s'\n", name);
+
   device_name = grub_file_get_device_name (name);
   if (grub_errno)
     goto fail;
@@ -99,9 +101,13 @@ grub_file_open (const char *name)
 	goto fail;
     }
 
+  grub_dprintf ("file", "fs open `%s'\n", name);
+
   if ((file->fs->open) (file, file_name) != GRUB_ERR_NONE)
     goto fail;
 
+  grub_dprintf ("file", "fs open `%s' succeeded\n", name);
+
   for (filter = 0; file && filter < ARRAY_SIZE (grub_file_filters_enabled);
        filter++)
     if (grub_file_filters_enabled[filter])
@@ -115,9 +121,13 @@ grub_file_open (const char *name)
   grub_memcpy (grub_file_filters_enabled, grub_file_filters_all,
 	       sizeof (grub_file_filters_enabled));
 
+  grub_dprintf ("file", "filter open `%s' succeeded\n", name);
+
   return file;
 
  fail:
+  grub_dprintf ("file", "fs open `%s' failed\n", name);
+
   if (device)
     grub_device_close (device);

I have no Linux up and running on my computer because of this issue (as I already mention it only boot from DVD into troubleshoot mode).

So I have doubt that I'm able to install patched grub on my external drive from the sources.
Is any other possible way to handle this?

I digging Fedora site and found that some information about booting with UEFI BIOS here http://docs.fedoraproject.org/en-US/Fedora/17/html/Installation_Guide/ch-Boot-x86.html

Can it be UEFI BIOS issue?

Do you boot in EFI or BIOS way? Ther is no such thing as "UEFI BIOS". Can you have GRUB on external device and try moving *.mod away?

What is the difference between EFI and BIOS way?
What I know that HP Pavilion dv6-6031er uses Insyde BIOS http://www.insydesw.com/

Yes. During installation I've selected external drive to install bootloader.
No. I wasn't moving anything.

If you have /efi directory then it's likely EFI boot. You probably can choose between EFI and BIOS in the firmware config.
I've asked you to try move *.mod away since I suspect that the problem is in s module. Without *.mod GRUB would go to rescue mode where you can insmod modules manually using full path. But your modules are likely on your ext* partition.

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