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zipl: add value of target= as search path for BLS case

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In the BLS files, the 'linux' and 'initrd' fields are relative to the
$BOOT directory. If $BOOT is a mount point of boot partition, 'linux'
and 'initrd' fields are relative to boot partition. If not, the paths
are relative to $BOOT directory of root partition.

zipl always starts searching at / regardless of partitions and mount
points.

This commit extends the semantics of target= field in zipl.conf to make
it as a second search path, besides /, for those 2 BLS fields.

See issues #69 for more details.

Fixes: https://github.com/ibm-s390-tools/s390-tools/issues/69
Closes: https://github.com/ibm-s390-tools/s390-tools/pull/74
Signed-off-by: Tuan Hoang <tmhoang@linux.ibm.com>
Signed-off-by: Stefan Haberland <sth@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
This commit is contained in:
Tuan Hoang
2019-10-04 19:37:25 +02:00
committed by Jan Höppner
parent 8bfe18e674
commit d71628326d
3 changed files with 65 additions and 0 deletions
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zipl/include/scan.h
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@@ -126,6 +126,7 @@ char* scan_keyword_name(enum scan_keyword_id id);
int scan_check_defaultboot(struct scan_token* scan);
struct scan_token* scan_build_automenu(struct scan_token* scan);
int scan_check(struct scan_token* scan);
int scan_check_bls(struct scan_token *scan);
int scan_find_section(struct scan_token* scan, char* name, enum scan_id type,
int offset);
int scan_check_section_data(char* keyword[], int* line, char* name,