When reading data off a disk, sector values are based on the disk sector
length.
Within grub_util_fd_open_device(), the start of the partition was taken
directly from grub's partition information structure, which uses the
internal sector length (currently 512b), but never transformed to the
disk's sector length.
Subsequent calculations were all wrong for devices that have a diverging
sector length and the functions eventually skipped to the wrong stream
location, reading invalid data.
Signed-off-by: Mihai Moldovan <ionic@ionic.de>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
This patch ensures that grub-probe will find the root device placed in
/dev/mapper/dm-[0-9]+-.* e.g. device named /dev/mapper/dm-0-luks will be
found and grub.cfg will be updated properly, enabling the system to boot.
Signed-off-by: Oleg Solovyov <mcpain@altlinux.org>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
Limit NVMe of_path_of_nvme to just SPARC hardware for now. It has been
found that non-Open Firmware hardware platforms can some how access
this function.
Signed-off-by: Eric Snowberg <eric.snowberg@oracle.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
The of_path_of_nvme function (commit 2391d57, ieee1275: add nvme
support within ofpath) introduced a functional regression:
On systems which are not based on Open Firmware but have at
least one NVME device, find_obppath will return NULL and thus
trying to append the disk name to of_path will result in a
crash.
The proper behavior of of_path_of_nvme is, however, to just
return NULL in such cases, like other users of find_obppath,
such as of_path_of_scsi.
Signed-off-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Reviewed-by: Eric Snowberg <eric.snowberg@oracle.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
The of_path_of_nvme function (commit 2391d57, ieee1275: add nvme
support within ofpath) introduced a build regression:
grub-core/osdep/linux/ofpath.c:365:21: error: comparison between pointer
and zero character constant [-Werror=pointer-compare]
if ((digit_string != '\0') && (*part_end == 'p'))
Update digit_string to compare against the char instead of the pointer.
Signed-off-by: Joakim Bech <joakim.bech@linaro.org>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
Add NVMe support within ofpath.
The Open Firmware text representation for a NVMe device contains the
Namespace ID. An invalid namespace ID is one whose value is zero or whose
value is greater than the value reported by the Number of Namespaces (NN)
field in the Identify Controller data structure. At the moment only a
single Namespace is supported, therefore the value is currently hard coded
to one.
Signed-off-by: Eric Snowberg <eric.snowberg@oracle.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
Code is currently ignoring errors from efibootmgr, giving users
clearly bogus output like:
Setting up grub-efi-amd64 (2.02~beta3-4) ...
Installing for x86_64-efi platform.
Could not delete variable: No space left on device
Could not prepare Boot variable: No space left on device
Installation finished. No error reported.
and then potentially unbootable systems. If efibootmgr fails, grub-install
should know that and report it!
We've been using similar patch in Debian now for some time, with no ill effects.
Signed-off-by: Steve McIntyre <93sam@debian.org>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
Fix the Open Firmware (OF) path property for sun4v SPARC systems.
These platforms do not have a /sas/ within their path. Over time
different OF addressing schemes have been supported. There
is no generic addressing scheme that works across every HBA.
It looks that this functionality will not work if you try to cross-install
SPARC GRUB2 binary using e.g. x86 grub-install. By default it should work.
However, we will also have other issues here, like lack of access to OF
firmware/paths, which make such configs unusable anyway. So, let's leave
this patch as is for time being. If somebody cares then he/she should fix
the issue(s) at some point.
Signed-off-by: Eric Snowberg <eric.snowberg@oracle.com>
Signed-off-by: Daniel Kiper <daniel.kiper@oracle.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
The `grub_util_exec_redirect_all` helper function can be used to
spawn an executable and redirect its output to some files. After calling
`fork()`, the parent will wait for the child to terminate with
`waitpid()` while the child prepares its file descriptors, environment
and finally calls `execvp()`. If something in the children's setup
fails, it will stop by calling `exit(127)`.
Calling `exit()` will cause any function registered via `atexit()` to be
executed, which is usually the wrong thing to do in a child. And
actually, one can easily observe faulty behaviour on musl-based systems
without modprobe(8) installed: executing `grub-install --help` will call
`grub_util_exec_redirect_all` with "modprobe", which obviously fails if
modprobe(8) is not installed. Due to the child now exiting and invoking
the `atexit()` handlers, it will clean up some data structures of the
parent and cause it to be deadlocked in the `waitpid()` syscall.
The issue can easily be fixed by calling `_exit(127)` instead, which is
especially designed to be called when the atexit-handlers should not be
executed.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Don't use devspec to determine the OBP path on SPARC hardware. Within all
versions of Linux on SPARC, the devspec returns one of three values:
"none", "vnet-port", or "vdisk". Unlike on PPC, none of these values
are useful in determining the OBP path.
Before this patch grub-ofpathname always returned the wrong value
for a virtual disk. For example:
% grub-ofpathname /dev/vdiskc2
vdisk/disk@2:b
After this patch it now returns the correct value:
% grub-ofpathname /dev/vdiskc2
/virtual-devices@100/channel-devices@200/disk@2:b
Orabug: 24459765
Signed-off-by: Eric Snowberg <eric.snowberg@oracle.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
These entries have placeholder for device name and so are useless for our
purpose. grub failed with something like
grub-install: error: failed to get canonical path of `systemd-1'.
When we see autofs entry, record it (to keep parent-child relationship) but
continue to look for real mount. If it is found, we process it as usual. If
only autofs entry exists, attempt to trigger mount by opening mount point
and retry. Mount point itself is then kept open to avoid timeout.
Recent systemd is by default using automount for /boot/efi so this should
become more popular problem on EFI systems.
Closes: 49942
grub_util_get_dm_abstraction() does a string comparison of insufficient
length. When using a UUID such as "CRYPT-PLAIN-sda6_crypt", the function
returns GRUB_DEV_ABSTRACTION_LUKS.
This results in the error:
./grub-probe: error: disk `cryptouuid/sda6_crypt' not found.
This appears to be a copy/paste error introduced in:
a10e7a5a89
The bug was (apparently) latent until revealed by:
3bca85b418
Signed-off-by: Corey Hickey <bugfood-c@fatooh.org>
Depending on the OS/libc, device macros are defined in different
headers. This change ensures we include the right one.
sys/types.h - BSD
sys/mkdev.h - Sun
sys/sysmacros.h - glibc (Linux)
glibc currently pulls sys/sysmacros.h into sys/types.h, but this may
change in a future release.
https://sourceware.org/ml/libc-alpha/2015-11/msg00253.html
This was lost when code was refactored. Patch restores previous behavior.
It is still not clear whether this is the right one. Due to the way we
detect DM abstraction, partitions on DM are skipped, we fall through to
generic detection which ends up in assuming parent device is BIOS disk.
It is useful to install GRUB on VM disk from the host. But it also means
that GRUB will mistakenly allow install on real system as well.
For now let's fix regression; future behavior needs to be discussed.
Closes: 45163
GRUB keeps partition offset and size in units of 512B sectors. Media paths
are defined in terms of LBA which are presumed to match HDD sector size.
This is probably cosmetic (EFI requires that partition is searched by GUID)
and still incorrect if GPT was created using different logical block size.
But current code is obviously wrong and new has better chances to be correct.
This makes it impossible to read from stdin without controlling tty:
10:/mnt # echo -e passwd\\npasswd | setsid ./grub-mkpasswd-pbkdf2
Enter password:
Reenter password: ./grub-mkpasswd-pbkdf2: error: failure to read password.
10:/mnt
Since btrfs on-disk format uses little-endian, the searched item types
(ROOT_REF, INODE_REF) need converting the byte order in order to
function properly on big-endian systems.
Some x86 systems might be capable of running a 64-bit Linux kernel but
only use a 32-bit EFI (e.g. Intel Bay Trail systems). It's useful for
grub-install to be able to recognise such systems, to set the default
x86 platform correctly.
To allow grub-install to know the size of the firmware rather than
just the size of the kernel, there is now an extra EFI sysfs file to
describe the underlying firmware. Read that if possible, otherwise
fall back to the kernel type as before.
Signed-off-by: Steve McIntyre <steve@einval.com>
canonicalize_file_name clashed with gnulib function. Additionally
it was declared in 2 places: emu/misc.h and util/misc.h. Added
grub_ prefix and removed second declaration.
strlcpy is not available on Linux as part of standard libraries.
It probably is not worth extra configure checks espicially as we
need to handle missing function anyway.
Many tests fail when run as a non-root user on FreeBSD. The failures
all amount to an inability to open files using grub_util_fd_open,
because we cannot set the kern.geom.debugflags sysctl. This sysctl is
indeed important to allow us to do such things as installing GRUB to the
MBR, but if we need to do that and can't then we will get an error
later. Enforcing it here is unnecessary and prevents otherwise
perfectly reasonable operations.
