[syslinux:master] extlinux/main.c: Correct comment about btrfs install
syslinux-bot for Gene Cumm
gene.cumm at gmail.com
Sun Nov 15 13:06:04 PST 2015
Commit-ID: 8d2aa9f0e35b47b37a08c9430cde994d36545404
Gitweb: http://www.syslinux.org/commit/8d2aa9f0e35b47b37a08c9430cde994d36545404
Author: Gene Cumm <gene.cumm at gmail.com>
AuthorDate: Sun, 15 Nov 2015 09:14:21 -0500
Committer: Gene Cumm <gene.cumm at gmail.com>
CommitDate: Sun, 15 Nov 2015 16:04:23 -0500
extlinux/main.c: Correct comment about btrfs install
As of commit ID 37eef640 (before 6.03-pre12, before 6.03), it is now in
Boot Area B.
Signed-off-by: Gene Cumm <gene.cumm at gmail.com>
---
extlinux/main.c | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/extlinux/main.c b/extlinux/main.c
index 26eb43c..e2eb728 100644
--- a/extlinux/main.c
+++ b/extlinux/main.c
@@ -598,9 +598,12 @@ bail:
return 1;
}
-/* btrfs has to install ldlinux.sys in the first 64K blank area, which
- is not managed by btrfs tree, so actually this is not installed as a file,
- since the cow feature of btrfs would move the ldlinux.sys file everywhere. */
+/* btrfs has to install ldlinux.sys to a boot area, which is not managed by
+ btrfs tree, so actually this is not installed as a file, since the cow
+ feature of btrfs would move the ldlinux.sys file everywhere. Older
+ versions installed it to the first 64kiB (aka Boot Area A) but as of
+ commit ID 37eef640 (before 6.03-pre12, before 6.03), it is now in Boot
+ Area B (a 768kiB blank space at offset 256kiB). */
int btrfs_install_file(const char *path, int devfd, struct stat *rst)
{
char *file;
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