similar to: PATCH/RFC chain.c: update iterator code, yank from chain.c, move both to separate directory

This is a bit updated set of chain.c32 changes that simplifies a few things (and in partiter part), fixes few minor issues and adds a few new features. Details are in the following commits, below is the summary and pull details at the end. Shao - any chance to peek over them ? Most of those are relatively simple changes and well tested, though of course something might have slipped my attention.

So last week I was wondering if XFS was still working -- even with its last on-disk structure changes -- and it _suprisingly_ worked as expected. Right, now I can finally get rid of GRUB and use Syslinux to boot my Linux on EFI from a rootfs with xfs. Shit, I have two partitions (the first one being the required ESP) so there is no way to access the other partitions since because Syslinux does not

This patch introduces extra functionality to chain.c, mainly with reference to BPB adjustments, but not only that. It expects 3 small patches I sent earlier (they are included for easy reference, patches 1-3/4). The changes introduced are: 1) file and boot sector use separate options to control load address and jump address (if applicable). Options are as described below: *

This small set fixes few bugs, improves gpt handling (under buggy conditions) and implements strict flag with more fine grained control which should fix issues with sanity checks against disk sizes. If this set is allright I'd want to do what I mentioned in older discussion with Ady - backport missing patches from 6.x to 5.x and 4.x so all versions have up to date chain version. Michal

Hello, the following patches should get multidisk access working. The syntax accepted is the following: (hdx,y)/path/to/file where x is the disk number and start at 0 and the y is the partition number starting at 1. So (hd0,1) is the first partition of the first disk. the other accepted syntax is using MBR's 32 bits disk signature so for example: (mbr:0x12345678,2)/foo/bar would address

From: Raphael S. Carvalho <raphael.scarv at gmail.com> MultiFS depends on the availability of partiter to find a partition. Signed-off-by: Raphael S. Carvalho <raphael.scarv at gmail.com> --- com32/chain/Makefile | 2 +- com32/chain/chain.c | 4 +- com32/chain/mangle.c | 4 +- com32/chain/mangle.h | 2 +-

From: "Raphael S. Carvalho" <raphael.scarv at gmail.com> MultiFS depends on the availability of partiter to find a partition. Cc: Gene Cumm <gene.cumm at gmail.com> Signed-off-by: Raphael S. Carvalho <raphael.scarv at gmail.com> Signed-off-by: Paulo Alcantara <pcacjr at zytor.com> --- com32/chain/Makefile | 2 +- com32/chain/chain.c

1) At the end of main, there's attempt to free cur_part->record, which rarely comes from malloc. Only valid case is if gpt handover was performed and chaining was not successful (cur_part->record is overwritten with gpt specifc handover record). Freeing the handover area has been adjusted. 2) If our current iterator is ebr, parent wouldn't be freed at the end of main. Added generic

>From the earlier patches - that simple fix for indexes not counting non-data partitions in gpt and mbr cases. Patches don't touch any other parts of the code at this stage - bigger stuff later for disklib as we agreed - but this is potentially useful right now. Michal Soltys (1): chain.c: fix public index value in mbr and gpt iterators

i`ve found a bug in chain.c32 in v4.06. When i use isolinux it does not run windows7 installation, chainloading bootmgr. the error is: Can't find myself on the drive I booted from. chain.c32 from syslinux 3.xx works like a charm! chain.c32 from syslinux 5 shous tat this is not a com32 app

Previous version had some issues in case of error situations, among those: - backup gpt header was not read if reading of primary failed - alternating nature of lba_cur and lba_alt was ignored This patch fixes this and extends the gpt handling. The current behavior is: - try primary header; if unreadable or checksum fails (or sanity checks fail unless relax flag is set) - try secondary header

As partiter doesn't deallocate itself after finish (anymore), it should be deleted after each loop iteration. diff --git a/com32/chain/chain.c b/com32/chain/chain.c index c08ec6e..f86cd7d 100644 --- a/com32/chain/chain.c +++ b/com32/chain/chain.c @@ -64,27 +64,23 @@ static int is_phys(uint8_t sdifs) static int find_by_sig(uint32_t mbr_sig, struct part_iter **_boot_part) { - struct

This is a revised version of the two series previously posted here: https://www.redhat.com/archives/libguestfs/2019-January/msg00137.html https://www.redhat.com/archives/libguestfs/2019-January/msg00139.html There have been many smaller changes but the highlights are: - Using SECTOR_SIZE instead of hard-coding 512 everywhere. - Additional safety checks that the EBR chain doesn't jump

An evolution of the patch I posted yesterday to qemu-devel (https://www.mail-archive.com/qemu-devel@nongnu.org/msg588920.html) which (a) works and (b) has a test. Rich.

I think this addresses everything in Eric's v2 review. Note that the first patch is best viewed using ‘-w’ to ignore whitespaces changes. Rich.

This implements support for MBR logical partitions in nbdkit-partition-filter, complementing existing support in the partitioning plugin. Rich.

On 07/14/16 05:56, Ady Ady via Syslinux wrote: > > @Peter, Erwan, Gene, Michal, (and anyone else interested)... > > Although I haven't actually tested Erwan's patch, would it be > acceptable by you (all) if I were to send a patch to this Syslinux > Mailing List with the same code while changing the wording as I > previously suggested in a prior email? Would it be

Hi, i think i found the reason for the boot failure in the definition of Extended Boot Records. https://en.wikipedia.org/wiki/Extended_boot_record#Values "Starting sector = relative offset between this EBR sector and the first sector of the logical partition. Note: This is often the same value for each EBR on the same hard disk; usually 63 for Windows XP or older." So if

1) public index in gpt iterator should not skip empty partitions, e.g. if we have 1st and 3rd gpt entry used, we expect the numbers to be 1 and 3, not 1 and 2 (similary to how linux sees it e.g. /dev/sda1 and /dev/sda3). It's analogous to index / mbr_index fix. 2) free(ebr_part); in mbr iterator was not reachable. ebr iterator takes care of freeing itself and its parent. 3) in ebr iterator,

On 04/30/2015 06:51 PM, Chen, Hanxiao wrote: > Hi, Rich > >> -----Original Message----- >> From: Richard W.M. Jones [mailto:rjones@redhat.com] >> Sent: Wednesday, April 29, 2015 7:04 PM >> To: Chen, Hanxiao/陈 晗霄 >> Cc: libguestfs@redhat.com >> Subject: Re: [Libguestfs] [PATCH 00/10] virt-resize: add support for resizing MBR >> logical partitions