On Fri, Apr 25, 2014 at 06:43:07PM +0200, Kay Sievers wrote:
> On Fri, Apr 25, 2014 at 3:51 PM, Julian Andres Klode <[email protected]> wrote:
> > I received the following bug report in Debian about
> > gummiboot.
> >
> > On Sun, Apr 20, 2014 at 10:04:23AM +0200, Philipp Kern wrote:
> >> Package: gummiboot
> >> Version: 44-1
> >> Severity: important
> >>
> >> gummiboot fails to install if there is a preexisting EFI boot loader in
> >> the fallback location (e.g. after a successful installation of Windows):
> >>
> >> pkern@simplex ~ % sudo gummiboot install --path=/boot/efi
> >> Created /boot/efi/EFI/gummiboot.
> >> Copied /usr/lib/gummiboot/gummibootx64.efi to
> >> /boot/efi/EFI/gummiboot/gummibootx64.efi.
> >> Failed to rename /boot/efi/EFI/Boot/BOOTX64.EFI~ to
> >> /boot/efi/EFI/Boot/BOOTX64.EFI: File exists
> >
> > As we can see here, it tries to do an atomic replace of the boot loader,
> > but this fails because /boot/efi (we need to use /boot/efi in Debian instead
> > of /boot, because our kernel images are installed in /boot) is FAT32 and
> > that does not seem to allow replacements.
>
> It works just fine here on a FAT partition. I have no idea why it
> would go wrong.
It seems to be a matter of lower vs. uppercase, for example:
$ ls -l EFI/Boot/
-rwxr-xr-x 1 root root 78107 Apr 11 00:25 bootx64.efi
# mv y EFI/Boot/BOOTX64.efi
mv: cannot move 'y' to 'EFI/Boot/BOOTX64.efi': File exists
But:
# mv y EFI/Boot/bootx64.efi
works as intended. Strace shows the difference:
rename("y", "EFI/Boot/BOOTX64.efi") = -1 EEXIST (File exists)
rename("y", "EFI/Boot/bootx64.efi") = 0
It does work in some cases though. I'm not entirely sure what is
broken here.
The file system is mounted in utf8 which produces the warning
[ 2.998918] FAT-fs (sdb1): utf8 is not a recommended IO charset for FAT
filesystems, filesystem will be case sensitive!
which probably causes this. I'm not sure why it is mounted with
utf-8, though.
--
Julian Andres Klode - Debian Developer, Ubuntu Member
See http://wiki.debian.org/JulianAndresKlode and http://jak-linux.org/.
Please do not top-post if possible.
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