H. Peter Anvin [Fri, 2 Jul 2010 01:02:11 +0000 (18:02 -0700)]
dprintf: allow overriding the serial port address
Allow overriding the serial port address, e.g. for systems which only
have PCI serial ports.
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
H. Peter Anvin [Fri, 2 Jul 2010 00:59:30 +0000 (17:59 -0700)]
comboot.inc: vk_append is a field in a struct, not an address
We want to use VKernelBuf as temporary storage, not vk_append.
vk_append is an offset into a larger buffer, and we ended up
corrupting low BIOS memory.
Reported-by: Joseph Cihula <joseph.cihula@intel.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
H. Peter Anvin [Thu, 1 Jul 2010 21:21:14 +0000 (14:21 -0700)]
MCONFIG: add -Wno-error to .lnx files
Again, .lnx files are test vehicles... erroring out due to warnings
makes no sense.
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
H. Peter Anvin [Thu, 1 Jul 2010 21:15:38 +0000 (14:15 -0700)]
MCONFIG: .lnx files are for testing, don't do _FORTIFY_SOURCE
.lnx files are strictly a testing vehicle. It makes absolutely no
sense to enforce the often rather arbitrary rules of _FORTIFY_SOURCE
on those, so override the default _FORTIFY_SOURCE setting.
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Gert Hulselmans [Thu, 1 Jul 2010 15:57:44 +0000 (17:57 +0200)]
ifplop.c32: Detect if PLoP USB/CD INT13h hook is enabled/disabled
New module which detects if the PLoP Boot Loader already has booted a
CDROM or USB drive by checking for the presence of the PLoP INT13h hook.
The following assembly code (NASM) can detect the PLoP INT13h hook:
mov eax,'PoLP' ; Reverse of 'PLoP'
mov ebp,'DKHC' ; Reverse of 'CHKD'
int 13h
cmp eax,' sey' ; Reverse of 'yes '
jz plop_INT13h_active
Signed-off-by: Gert Hulselmans <gerth@zytor.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
H. Peter Anvin [Thu, 1 Jul 2010 19:47:02 +0000 (12:47 -0700)]
Merge branch 'master' of ssh://terminus.zytor.com/pub/git/syslinux/syslinux
H. Peter Anvin [Thu, 1 Jul 2010 14:22:30 +0000 (07:22 -0700)]
NEWS: document changes to the CD-ROM initialization sequence
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
H. Peter Anvin [Wed, 30 Jun 2010 21:02:56 +0000 (14:02 -0700)]
core, diskio: skip EDD/CHS detect for CD-ROMs
Skip EDD and CHS detection if we know it is a CD-ROM, because some
CD-ROMs possibly report bad information, and/or screw up the stack,
possibly permanently.
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
H. Peter Anvin [Thu, 1 Jul 2010 14:19:23 +0000 (07:19 -0700)]
core, diskio: move dprintfs to the intended location
Move the dprintfs to the location that they were intended to use.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
H. Peter Anvin [Wed, 30 Jun 2010 16:53:46 +0000 (09:53 -0700)]
core, diskio: put the error code in dprintf and printable messages
When we print an error message to the screen, include the error
number. Furthermore, dprintf it on retries.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
H. Peter Anvin [Wed, 30 Jun 2010 00:45:23 +0000 (17:45 -0700)]
mboot.h: use <dprintf.h>
Use <dprintf.h> like more and more of the system does...
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
H. Peter Anvin [Wed, 30 Jun 2010 00:21:43 +0000 (17:21 -0700)]
NEWS: beginning of a 4.01 NEWS file
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
H. Peter Anvin [Wed, 30 Jun 2010 00:17:58 +0000 (17:17 -0700)]
diskstart: don't let the function number clobber the LBA
The LBA for getonesec and getlinsec is in EDX:EAX, but both DL and AX
are function inputs to INT 13h (drive number and function number). We
need to preserve the LBA across *both* those, otherwise retries will
not function.
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
H. Peter Anvin [Tue, 29 Jun 2010 22:17:11 +0000 (15:17 -0700)]
isolinux: don't clobber DX (DL!) on startup
DL contains the initial drive number, don't clobber it!
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
H. Peter Anvin [Tue, 29 Jun 2010 20:27:03 +0000 (13:27 -0700)]
isolinux: make sure Hidden is zero in native El Torito mode
In native El Torito mode, there is no such thing as a partition
offset. Make sure that we set Hidden to zero -- we don't use Hidden
(yet, although the ebios and cdrom code should be merged!) but we pass
it to the PM code, which will produce *really* wrong results...
Reported-by: Helmut Hullen <Hullen@t-online.de>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
H. Peter Anvin [Tue, 29 Jun 2010 17:36:28 +0000 (10:36 -0700)]
core, diskio: add a few dprintf()'s
Add a handful of dprintf's to make it easier to debug disk I/O
failures.
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
H. Peter Anvin [Mon, 28 Jun 2010 22:59:25 +0000 (15:59 -0700)]
version: next version in 4.01
4.00 is out, start work on 4.01...
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
H. Peter Anvin [Mon, 28 Jun 2010 22:56:43 +0000 (15:56 -0700)]
Merge remote branch 'debian/daniel'
H. Peter Anvin [Mon, 28 Jun 2010 21:42:11 +0000 (14:42 -0700)]
Merge remote branch 'sha0/newness'
Shao Miller [Mon, 28 Jun 2010 21:41:21 +0000 (14:41 -0700)]
NEWS: Document mdiskchk.com and eltorito.sys changes
H. Peter Anvin [Mon, 28 Jun 2010 21:37:45 +0000 (14:37 -0700)]
config.c32: accept an optional new directory
Accept an optional new directory to config.c32, just as we permit for
the CONFIG statement.
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
H. Peter Anvin [Mon, 28 Jun 2010 21:34:08 +0000 (14:34 -0700)]
diskio: hard-code CD-ROM sectors to 2048 bytes
At least the ThinkPad T22 and T23 will incorrectly report a sector
size of 512 bytes for El Torito CD-ROMs. Ignore the reported sector
size for El Torito boots.
Reported-by: Helmut Hullen <hullen@t-online.de>
Tested-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
H. Peter Anvin [Mon, 28 Jun 2010 20:51:15 +0000 (13:51 -0700)]
NEWS: document MENU IMMEDIATE
H. Peter Anvin [Mon, 28 Jun 2010 20:48:21 +0000 (13:48 -0700)]
NEWS: document isohybrid.c
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
H. Peter Anvin [Mon, 28 Jun 2010 20:47:37 +0000 (13:47 -0700)]
NEWS: document ifcpu*.c32 fix
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Erwan Velu [Mon, 28 Jun 2010 19:39:04 +0000 (21:39 +0200)]
NEWS: Fixing HDT, adding ifcpu changes
H. Peter Anvin [Mon, 28 Jun 2010 19:24:28 +0000 (12:24 -0700)]
NEWS: first cut of a NEWS file for 4.00
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
H. Peter Anvin [Mon, 28 Jun 2010 01:46:36 +0000 (18:46 -0700)]
core, chdir: collapse slashes, avoid copy-to-self
Collapse multiple slashes into one (this still doesn't resolve . and
.. in the path, since that requires awareness of symlinks.)
This code also avoids a copy-over-self bug by introducing a temporary
buffer.
Reported-by: Gene Cumm <gene.cumm@gmail.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
H. Peter Anvin [Mon, 28 Jun 2010 01:29:02 +0000 (18:29 -0700)]
Merge remote branch 'sha0/gert_chain'
Gert Hulselmans [Mon, 28 Jun 2010 01:11:48 +0000 (03:11 +0200)]
chain.c32: pass partition number to stage2 of Grub Legacy
Grub Legacy stage2 will read the install_partition variable from
memory address 0x8208.
We only need to change the value at 0x820a to the correct partition
number:
-1: whole drive (default)
0-3: primary partitions
4-*: logical partitions
Signed-off-by: Gert Hulselmans <gerth@zytor.com>
Gene Cumm [Mon, 28 Jun 2010 01:09:23 +0000 (18:09 -0700)]
rosh: update for Syslinux 4 and make it more usable
Without further adieu, I would like to announce that I've finally
pushed ROSH, the Read-Only SHell, finally to the point of being
reasonably usable.
Signed-off-by: Gene Cumm <gene.cumm@gmail.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Gert Hulselmans [Mon, 28 Jun 2010 00:42:58 +0000 (02:42 +0200)]
chain.c32: only pass partition number in DH, when grldr= is used
Add grldr= as boot parameter, so the partition number is only passed to
grub4dos grldr, when grldr= is used.
Currently the partition number is passed in DH unconditionally.
As consequence, grldr will set its root partition on which is searches its
menu.lst to (hd0), because -1 (whole drive) is passed in DH as root partition:
chain.c32 file=/grldr
When the conditional check, this problem is solved:
chain.c32 file=/grldr
Grub4dos will search all partitions for its menu.lst
When you want to set the root partition, use something like the following:
chain.c32 hd0,2 grldr=/grldr
chain.c32 fs grldr=/grldr
Signed-off-by: Gert Hulselmans <gerth@zytor.com>
H. Peter Anvin [Mon, 28 Jun 2010 00:48:58 +0000 (17:48 -0700)]
Merge remote branch 'sha0/gert_chain'
Gert Hulselmans [Mon, 28 Jun 2010 00:13:39 +0000 (02:13 +0200)]
chain.c32: add keeppxe to usage output and cleanup comments
Add keeppxe to usage output.
Cleanup some comments.
H. Peter Anvin [Mon, 28 Jun 2010 00:09:18 +0000 (17:09 -0700)]
<linux/loop.h>: deal with really ancient Linux kernel headers
RHEL4 had a 2.6.9 kernel, but 2.4.20 Linux kernel headers, so put in a
workaround for 2.4 kernel headers.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
H. Peter Anvin [Sun, 27 Jun 2010 23:38:25 +0000 (16:38 -0700)]
libinstaller: include <linux/loop.h>
Some versions of glibc have broken versions of <linux/loop.h>, so
include our own canned version.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
H. Peter Anvin [Sun, 27 Jun 2010 19:02:48 +0000 (12:02 -0700)]
Export the 64-bit partition offset and use it in chain.c
When used with the "fs" option to chain.c32, we need to know our own
filesystem offset. That means knowing if we used the MBR vs GPT
partition information, as well as if we ended up using the passed-in
information or not.
Resolve this by providing an explicit pointer to the current partition
offset. Eventually this should be replaced by some kind of statfs()
call.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
H. Peter Anvin [Sun, 27 Jun 2010 18:43:49 +0000 (11:43 -0700)]
isohdpfx: update to the new !GPT protocol
Update the check for !GPT to match the updated protocol (with length).
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
H. Peter Anvin [Sun, 27 Jun 2010 04:31:08 +0000 (21:31 -0700)]
diskstart: if no partition info is available, use bsHidden
If we have no partition information available, use the bsHidden field
(which is set by the extlinux installer in the case of non-FAT). This
gives at least a hope of working correctly (for < 2 TiB disks, at
least) with the stock Vista/Win7 MBR.
Also, add a check for partition type != 0. This helps catch the case
when DS:SI points into all-zero memory.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
H. Peter Anvin [Sun, 27 Jun 2010 04:24:02 +0000 (21:24 -0700)]
Update .gitignore
H. Peter Anvin [Sun, 27 Jun 2010 04:22:48 +0000 (21:22 -0700)]
extlinux: set bsHidden for loop devices
If we are on a loop device, set bsHidden based on the loopback device
offset.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Gene Cumm [Sun, 27 Jun 2010 02:51:39 +0000 (22:51 -0400)]
PM getcwd(); Fix COM32 getcwd
Implement getcwd() in the core; Fix COM32 getcwd() to use the new function.
This resolves the previous comment about COM32 getcwd() not working by
not using INT 22h AX=001Fh.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
H. Peter Anvin [Sun, 27 Jun 2010 03:38:04 +0000 (20:38 -0700)]
core: move PartInfo back to the top of stack
Move PartInfo back to near the top of the stack. This makes it less
likely that it ends up getting overwritten during the act of copying
itself.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
H. Peter Anvin [Sun, 27 Jun 2010 03:37:37 +0000 (20:37 -0700)]
syslinux.ld: remove redundant definition of STACK32_LEN
STACK32_LEN is already defined in layout.inc.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
H. Peter Anvin [Sun, 27 Jun 2010 03:28:45 +0000 (20:28 -0700)]
menu: add MENU HELP
Add a feature to display fullscreen help via menu selection entry
(inspired by the Debian install disc menus.)
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
H. Peter Anvin [Sun, 27 Jun 2010 01:46:33 +0000 (18:46 -0700)]
core, fs: eliminate recursion in put_inode()
We don't actually need recursion in put_inode(), so replace recursion
with a loop.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
H. Peter Anvin [Sun, 27 Jun 2010 01:07:59 +0000 (18:07 -0700)]
chain.c32: fix handover to a logical partition
Make sure the handover information to a logical partition is adjusted
correctly -- we can't just hand over the partition entry, but we have
to adjust start_lba to match the real start LBA.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
H. Peter Anvin [Sun, 27 Jun 2010 00:49:01 +0000 (17:49 -0700)]
gptmbr: skip partitions with all-zero PartitionTypeGUID
PartitionTypeGUID being zero means an empty slot, and so we should not
count that partition type.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
H. Peter Anvin [Sat, 26 Jun 2010 22:03:02 +0000 (15:03 -0700)]
pwd.c32: add to Makefile
Actually *build* pwd.c32...
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
H. Peter Anvin [Sat, 26 Jun 2010 21:57:14 +0000 (14:57 -0700)]
chain.c32: "fs" is a singular token, only match if complete
fs is a full token, not a prefix.
Reported-by: Gert Hulselmans <gerth@zytor.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Gene Cumm [Sat, 26 Jun 2010 14:59:46 +0000 (10:59 -0400)]
com32 pwd module
[MODULE] pwd to list present (current) working directory. If the
returned string is empty, display ".". If the return value is NULL,
display an error message.
Unfortunately, it appears that COM32 getcwd is not working properly at
this moment, it calling the COMBOOT call and getting an empty string.
Signed-off-by: Gene Cumm <gene.cumm@gmail.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Gene Cumm [Sat, 26 Jun 2010 15:18:59 +0000 (11:18 -0400)]
Fix COM32 chdir()
Fix COM32 chdir() since it's implemented in the core.
Forgot the core changes needed for this before.
Signed-off-by: Gene Cumm <gene.cumm@gmail.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
H. Peter Anvin [Sat, 26 Jun 2010 19:30:13 +0000 (12:30 -0700)]
pmapi: make the pmapi vector include its own size
Future-proof the pmapi vector by making it include its own size.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Shao Miller [Sat, 26 Jun 2010 06:19:04 +0000 (02:19 -0400)]
chain: Support booting GPT partition by label
Use the "label:" specifier followed by the label for
one of a GPT disk's partitions.
Signed-off-by: Shao Miller <shao.miller@yrdsb.edu.on.ca>
Shao Miller [Sat, 26 Jun 2010 04:29:39 +0000 (00:29 -0400)]
chain: Support booting GPT disk/partition by GUID
Use the "guid:" specifier followed by the GUID for
a GPT disk or one of its partitions.
Signed-off-by: Shao Miller <shao.miller@yrdsb.edu.on.ca>
H. Peter Anvin [Sat, 26 Jun 2010 03:36:59 +0000 (20:36 -0700)]
core, fs: handle .. resolution in the filesystem core
Some filesystems, including btrfs, don't have .. directory entries.
We already handle . in the filesystem core, handle .. as well.
This means keeping chains of parent inodes for all open inodes, at
least for the duration of a path search; we might as well hang onto
them.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
H. Peter Anvin [Sat, 26 Jun 2010 03:34:26 +0000 (20:34 -0700)]
btrfs: initialize the block cache early
Initialize the block cache at the very start. The block size for
btrfs is fixed, and so we can start by initializing the cache. That
eliminates a whole bunch of unnecessary I/O as well as extra code.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
H. Peter Anvin [Sat, 26 Jun 2010 03:10:09 +0000 (20:10 -0700)]
btrfs: do not read past the end of the disk
When looking for the current superblock, don't read past the end of
the disk. This more or less assumes that the superblocks are
reasonably consistent with regards to the total filesystem size.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
H. Peter Anvin [Sat, 26 Jun 2010 02:51:14 +0000 (19:51 -0700)]
core, diskio: make error messages a little more useful
Be a bit more explicit about the particular errors we see.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
H. Peter Anvin [Sat, 26 Jun 2010 02:49:20 +0000 (19:49 -0700)]
extlinux: modify the layout for btrfs
Put the btrfs boot code right after the boot sector (they are really
one image anyway). Align the ADV with the end of the boot region, so
we can locate it for modification as necessary, and the offset don't
end up shifting with different boot image sizes.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
H. Peter Anvin [Fri, 25 Jun 2010 22:25:22 +0000 (15:25 -0700)]
dos: include the ADV in the file size to be sector mapped
We need to include the ADV in the size of the file that must be sector
mapped.
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
H. Peter Anvin [Fri, 25 Jun 2010 22:23:42 +0000 (15:23 -0700)]
mtools: include the size of the ADV in the mappable range
We need to include the size of the ADV in the range of data that needs
to be mapped.
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
H. Peter Anvin [Fri, 25 Jun 2010 20:56:19 +0000 (13:56 -0700)]
chain.c32: correctly set the length of the GPT handover structure
We need to make sure the entire GPT handover structure is mapped
correctly by the shuffler.
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
H. Peter Anvin [Fri, 25 Jun 2010 20:48:49 +0000 (13:48 -0700)]
Merge remote branch 'sha0/chain_gpt'
H. Peter Anvin [Fri, 25 Jun 2010 20:13:11 +0000 (13:13 -0700)]
pxe: don't corrupt the length of an RRQ packet on retry
Due to double use of the variable "buf", we would end up corrupting
the length, but not the contents, of an RRQ packet if we ended up
having to re-send. Some TFTP servers ignored the extra garbage
(including tftp-hpa), others would refuse to accept the RRQ, causing
failures.
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Shao Miller [Fri, 25 Jun 2010 10:45:07 +0000 (06:45 -0400)]
chain: Implement GPT hand-over protocol as documented
When a partition was yielded by a GPT partition iterator,
we follow the protocol documented in syslinux/doc/gpt.txt.
Signed-off-by: Shao Miller <shao.miller@yrdsb.edu.on.ca>
H. Peter Anvin [Fri, 25 Jun 2010 04:35:44 +0000 (21:35 -0700)]
pxe: fix the unload sequence
For somewhat unclear reasons, the PXE unload sequence took the old PXE
path (pre-2.00 API). Take the new sequence if available. Also
improve the error message.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
H. Peter Anvin [Fri, 25 Jun 2010 03:55:43 +0000 (20:55 -0700)]
pxe: fix ip_ok()
Make it easier to read, but fix the address for the loopback network
(127, not 255).
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
H. Peter Anvin [Fri, 25 Jun 2010 03:40:29 +0000 (20:40 -0700)]
doc/gpt.txt: this is now fully implemented
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Daniel Baumann [Thu, 24 Jun 2010 22:15:54 +0000 (00:15 +0200)]
Updating description in syslinux manpage wrt/ default entries as of syslinux >= 3.85.
Daniel Baumann [Thu, 24 Jun 2010 22:15:43 +0000 (00:15 +0200)]
Adding note about extlinux.conf in extlinux manpage.
H. Peter Anvin [Thu, 24 Jun 2010 22:02:29 +0000 (15:02 -0700)]
Rename dir.c32 -> ls.c32
Use the term "ls" for directory listing, like real operating systems
;)
-hpa
Shao Miller [Thu, 24 Jun 2010 20:49:05 +0000 (16:49 -0400)]
chain: Allow booting the Syslinux partition with "fs"
We will now accept an "fs" option which instructs us to
chain-load whatever partition we were booted from. Not
useful for PXELINUX, for obvious reasons. Can be used
in combination with a "file=" option, to boot something
other than Syslinux.
Signed-off-by: Shao Miller <shao.miller@yrdsb.edu.on.ca>
H. Peter Anvin [Thu, 24 Jun 2010 20:36:54 +0000 (13:36 -0700)]
Merge remote branch 'erwan/master_new'
Erwan Velu [Thu, 24 Jun 2010 20:32:03 +0000 (22:32 +0200)]
ifcpu: Adding PAE support
H. Peter Anvin [Thu, 24 Jun 2010 20:30:49 +0000 (13:30 -0700)]
Merge branch 'master' of ssh://terminus.zytor.com/pub/git/syslinux/syslinux
H. Peter Anvin [Thu, 24 Jun 2010 20:08:46 +0000 (13:08 -0700)]
extlinux: fix ADV handling, so extlinux.sys -> ldlinux.sys actually works
Do the appropriate thing for various error cases, so that the
migration code actually does the right thing.
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Gert Hulselmans [Thu, 24 Jun 2010 20:08:21 +0000 (22:08 +0200)]
disklib: Add WEE bootloader detection code
WEE, is a bootloader based on grub4dos. It fits in the first 63 sectors of
the drive.
The first 4 bytes are:
$ hexdump -n 4 /media/Data/ubcd-new/wee-2010-06-20/wee63.mbr
0000000 5eeb 0090
0000004
Or in the format get_mbr_string wants it:
$ hexdump -C -n 4 wee63.mbr
00000000 eb 5e 90 00
Patch tested in qemu:
qemu -boot d -cdrom hdt.iso -hda wee-2010-06-20/wee63.mbr
Shao Miller [Thu, 24 Jun 2010 20:05:21 +0000 (16:05 -0400)]
chain: A sprinkling of documentation
Signed-off-by: Shao Miller <shao.miller@yrdsb.edu.on.ca>
H. Peter Anvin [Thu, 24 Jun 2010 20:03:35 +0000 (13:03 -0700)]
advio: make read_adv() distinguish ENOENT from other errors
Make it possible to distinguish ENOENT from other "non-fatal" errors
in read_adv(), so we can try more than one filename.
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Erwan Velu [Thu, 24 Jun 2010 20:02:29 +0000 (22:02 +0200)]
ifcpu: printing usage if no parameter
If you just call the ifcpu.32 it display the usage.
H. Peter Anvin [Thu, 24 Jun 2010 19:48:26 +0000 (12:48 -0700)]
extlinux: add code to automate extlinux.sys -> ldlinux.sys migration
- Be able to modify the ADV either in extlinux.sys or ldlinux.sys
- Be able to preserve the ADV from extlinux.sys
- Remove extlinux.sys when installing ldlinux.sys
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
H. Peter Anvin [Thu, 24 Jun 2010 19:48:00 +0000 (12:48 -0700)]
libfat: formatting fix
Adjust indent damage...
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Shao Miller [Thu, 24 Jun 2010 18:21:30 +0000 (14:21 -0400)]
chain: Remove type-assurance macro for declarations
A coding pattern from WinVBlock leaked through whereby a
macro is used to declare functions having the same
prototype. This makes their declarations look a little less
like a traditional declarations however, so that pattern
has been removed.
Signed-off-by: Shao Miller <shao.miller@yrdsb.edu.on.ca>
Shao Miller [Thu, 24 Jun 2010 18:01:34 +0000 (14:01 -0400)]
chain: Support GPT disks
A GPT disk partition iterator is introduced, so
we can chain-load partitions on such a disk.
Tested-by: Shao Miller <shao.miller@yrdsb.edu.on.ca>
Signed-off-by: Shao Miller <shao.miller@yrdsb.edu.on.ca>
Shao Miller [Thu, 24 Jun 2010 15:54:30 +0000 (11:54 -0400)]
chain: Change disk partition iteration strategy
In order to support more than just MBR and EBR walking, we
introduce the abstraction of a partition iterator. Currently
there are just the two types: MBR partition iterator and
extended partition iterator.
Tested-by: Shao Miller <shao.miller@yrdsb.edu.on.ca>
Signed-off-by: Shao Miller <shao.miller@yrdsb.edu.on.ca>
Shao Miller [Thu, 24 Jun 2010 15:45:35 +0000 (11:45 -0400)]
chain: Fix allocation size in read_sectors
Oops. We might allocate more than just one sector.
Signed-off-by: Shao Miller <shao.miller@yrdsb.edu.on.ca>
H. Peter Anvin [Wed, 23 Jun 2010 23:31:45 +0000 (16:31 -0700)]
Move modify_adv() into common code
modify_adv() should be used by any installer which uses the common
CLI, so it should go into syslxopt.c.
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
H. Peter Anvin [Wed, 23 Jun 2010 19:11:49 +0000 (12:11 -0700)]
fs: enforce filetypes in open_file
Enforce that the file type in open_file is a plain file.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
H. Peter Anvin [Wed, 23 Jun 2010 19:11:21 +0000 (12:11 -0700)]
opendir: enforce the file type
Don't allow opendir() on a non-directory.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
H. Peter Anvin [Wed, 23 Jun 2010 19:08:30 +0000 (12:08 -0700)]
pxe: set the file type in the inode structure
All "files" on PXE are regular files (there is no official directory
mechanism) and so, at least for now, it's all DT_REG.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
H. Peter Anvin [Wed, 23 Jun 2010 06:21:15 +0000 (23:21 -0700)]
memdiskfind: remove debugging printf
Remove accidentally checked in debugging printf.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
H. Peter Anvin [Wed, 23 Jun 2010 06:19:40 +0000 (23:19 -0700)]
memdiskfind: make sure we don't map unavailable RAM
Sometimes FBM is below the reserved memory limit, which means memory
that is available to protected-mode operating systems only and which
will be claimed by the kernel and therefore be unmappable. Read
/proc/iomem to make sure the memory range is safe to map.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Shao Miller [Wed, 23 Jun 2010 04:23:30 +0000 (00:23 -0400)]
chain: Add DOS partition dumping routine for debugging
Signed-off-by: Shao Miller <shao.miller@yrdsb.edu.on.ca>
Shao Miller [Wed, 23 Jun 2010 03:44:29 +0000 (23:44 -0400)]
chain: Use struct mbr where applicable
Instead of magic offsets.
Signed-off-by: Shao Miller <shao.miller@yrdsb.edu.on.ca>
Shao Miller [Wed, 23 Jun 2010 03:34:41 +0000 (23:34 -0400)]
chain: Use CHS typedef and macros
A DOS partition table entry contains cylinder, head, sector
tuples which can be convenient to group together and extract
with convenience macros. Currently unused.
Signed-off-by: Shao Miller <shao.miller@yrdsb.edu.on.ca>
Shao Miller [Wed, 23 Jun 2010 03:32:26 +0000 (23:32 -0400)]
chain: Allow reading more than a single sector
Signed-off-by: Shao Miller <shao.miller@yrdsb.edu.on.ca>
Shao Miller [Wed, 23 Jun 2010 03:28:03 +0000 (23:28 -0400)]
chain: Run Nindent on com32/modules/chain.c
Signed-off-by: Shao Miller <shao.miller@yrdsb.edu.on.ca>
H. Peter Anvin [Wed, 23 Jun 2010 00:09:52 +0000 (17:09 -0700)]
mtools: create an empty ADV
Create an install an empty ADV.
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
H. Peter Anvin [Wed, 23 Jun 2010 00:07:03 +0000 (17:07 -0700)]
dos: vacuous ADV support
Vacuous ADV support: install an empty ADV.
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>