diff options
Diffstat (limited to 'abs/core/grub/grub-2.00.5086-fix-lvm-parsing.patch')
-rw-r--r-- | abs/core/grub/grub-2.00.5086-fix-lvm-parsing.patch | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/abs/core/grub/grub-2.00.5086-fix-lvm-parsing.patch b/abs/core/grub/grub-2.00.5086-fix-lvm-parsing.patch new file mode 100644 index 0000000..60128ba --- /dev/null +++ b/abs/core/grub/grub-2.00.5086-fix-lvm-parsing.patch @@ -0,0 +1,54 @@ +There is no explicit option to turn off alignment; it is implicitly +disabled if one of --separator or --nameprefixes option is used. + +--separator was added in 2007, --nameprefixes - in 2009. So let's use +--separator to extend range of versions we are compatible with. Note that +one or another must be used, current parsing is broken otherwise. + +Signed-off-by: Andrey Borzenkov <address@hidden> + +--- + util/getroot.c | 12 +++++++++--- + 1 file changed, 9 insertions(+), 3 deletions(-) + +diff --git a/util/getroot.c b/util/getroot.c +index 2ad8a55..3afcf96 100644 +--- a/util/getroot.c ++++ b/util/getroot.c +@@ -1322,7 +1322,7 @@ grub_util_get_dev_abstraction (const char *os_dev) + static void + pull_lvm_by_command (const char *os_dev) + { +- char *argv[6]; ++ char *argv[8]; + int fd; + pid_t pid; + FILE *mdadm; +@@ -1351,12 +1351,17 @@ pull_lvm_by_command (const char *os_dev) + + /* execvp has inconvenient types, hence the casts. None of these + strings will actually be modified. */ ++ /* by default PV name is left aligned in 10 character field, meaning that ++ we do not know where name ends. Using dummy --separator disables ++ alignment. We have a single field, so separator itself is not output */ + argv[0] = (char *) "vgs"; + argv[1] = (char *) "--options"; + argv[2] = (char *) "pv_name"; + argv[3] = (char *) "--noheadings"; +- argv[4] = vgname; +- argv[5] = NULL; ++ argv[4] = (char *) "--separator"; ++ argv[5] = (char *) ":"; ++ argv[6] = vgname; ++ argv[7] = NULL; + + pid = exec_pipe (argv, &fd); + free (vgname); +@@ -1376,6 +1381,7 @@ pull_lvm_by_command (const char *os_dev) + while (getline (&buf, &len, mdadm) > 0) + { + char *ptr; ++ /* LVM adds two spaces as standard prefix */ + for (ptr = buf; ptr < buf + 2 && *ptr == ' '; ptr++); + if (*ptr == '\0') + continue;
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