search for: guestfs_pwrite_device

I know there's lots of functions that can access/modify the internal fs of img or qcow2 through libguestfs. I want to know is there any library can modify the raw/qcow2 image directly in Python? For example, there's function called read_qcow2(), and I can know the content of tmp.qcow2 through the function read_qcow2().

The existing mechanism was clunky, slow and used ~ 10 MB of local disk. Rich.

https://bugzilla.redhat.com/show_bug.cgi?id=755729 This bug reports that the error message printed by the resize2fs API calls (which comes directly from the resize2fs command) says: Please run 'e2fsck -f /dev/vda1' first. That command is not possible from guestfish (where it would be 'e2fsck-f' or 'e2fsck ... forceall:true'). Fixing that bug caused this bug:

This is a follow-up to the other generator changes in: https://www.redhat.com/archives/libguestfs/2017-February/msg00217.html Rich.

Split up the huge generator/actions.ml into several smaller files. Rich.

...]; + style = RInt "nbytes", [String (Pathname, "path"); BufferIn "content"; Int64 "offset"], []; protocol_limit_warning = true; tests = [ InitScratchFS, Always, TestResultString ( @@ -5704,7 +5704,7 @@ See also C<guestfs_pread>, C<guestfs_pwrite_device>." }; { defaults with name = "resize2fs_size"; added = (1, 3, 14); - style = RErr, [Device "device"; Int64 "size"], []; + style = RErr, [String (Device, "device"); Int64 "size"], []; shortdesc = "resize an ext2, ext...

Very large but mechanical change to the generator. Rich.

...8: note: expected 'char * const*' but argument is of type 'const char **' com_redhat_et_libguestfs_GuestFS.c: In function 'Java_com_redhat_et_libguestfs_GuestFS__1pwrite_1device': com_redhat_et_libguestfs_GuestFS.c:8200: warning: pointer targets in passing argument 3 of 'guestfs_pwrite_device' differ in signedness ../src/guestfs.h:881: note: expected 'const char *' but argument is of type 'jbyte *' com_redhat_et_libguestfs_GuestFS.c: In function 'Java_com_redhat_et_libguestfs_GuestFS__1mkfs_1opts': com_redhat_et_libguestfs_GuestFS.c:8269: warning: 'return...

...6: note: expected 'char * const*' but argument is of type 'const char **' com_redhat_et_libguestfs_GuestFS.c: In function 'Java_com_redhat_et_libguestfs_GuestFS__1pwrite_1device': com_redhat_et_libguestfs_GuestFS.c:8275: warning: pointer targets in passing argument 3 of 'guestfs_pwrite_device' differ in signedness ../src/guestfs.h:889: note: expected 'const char *' but argument is of type 'jbyte *' com_redhat_et_libguestfs_GuestFS.c: In function 'Java_com_redhat_et_libguestfs_GuestFS__1mkfs_1opts': com_redhat_et_libguestfs_GuestFS.c:8344: warning: 'return...

...4: note: expected 'char * const*' but argument is of type 'const char **' com_redhat_et_libguestfs_GuestFS.c: In function 'Java_com_redhat_et_libguestfs_GuestFS__1pwrite_1device': com_redhat_et_libguestfs_GuestFS.c:8200: warning: pointer targets in passing argument 3 of 'guestfs_pwrite_device' differ in signedness ../src/guestfs.h:877: note: expected 'const char *' but argument is of type 'jbyte *' com_redhat_et_libguestfs_GuestFS.c: In function 'Java_com_redhat_et_libguestfs_GuestFS__1mkfs_1opts': com_redhat_et_libguestfs_GuestFS.c:8269: warning: 'return...

...note: expected 'char * const*' but argument is of type 'const char **' com_redhat_et_libguestfs_GuestFS.c: In function 'Java_com_redhat_et_libguestfs_GuestFS__1pwrite_1device': com_redhat_et_libguestfs_GuestFS.c:8200:3: warning: pointer targets in passing argument 3 of 'guestfs_pwrite_device' differ in signedness ../src/guestfs.h:881:12: note: expected 'const char *' but argument is of type 'jbyte *' com_redhat_et_libguestfs_GuestFS.c: In function 'Java_com_redhat_et_libguestfs_GuestFS__1mkfs_1opts': com_redhat_et_libguestfs_GuestFS.c:8269:3: warning: 'r...

...note: expected 'char * const*' but argument is of type 'const char **' com_redhat_et_libguestfs_GuestFS.c: In function 'Java_com_redhat_et_libguestfs_GuestFS__1pwrite_1device': com_redhat_et_libguestfs_GuestFS.c:8275:3: warning: pointer targets in passing argument 3 of 'guestfs_pwrite_device' differ in signedness ../src/guestfs.h:889:12: note: expected 'const char *' but argument is of type 'jbyte *' com_redhat_et_libguestfs_GuestFS.c: In function 'Java_com_redhat_et_libguestfs_GuestFS__1mkfs_1opts': com_redhat_et_libguestfs_GuestFS.c:8344:3: warning: 'r...

...8: note: expected 'char * const*' but argument is of type 'const char **' com_redhat_et_libguestfs_GuestFS.c: In function 'Java_com_redhat_et_libguestfs_GuestFS__1pwrite_1device': com_redhat_et_libguestfs_GuestFS.c:8200: warning: pointer targets in passing argument 3 of 'guestfs_pwrite_device' differ in signedness ../src/guestfs.h:881: note: expected 'const char *' but argument is of type 'jbyte *' com_redhat_et_libguestfs_GuestFS.c: In function 'Java_com_redhat_et_libguestfs_GuestFS__1mkfs_1opts': com_redhat_et_libguestfs_GuestFS.c:8269: warning: 'return...

...note: expected 'char * const*' but argument is of type 'const char **' com_redhat_et_libguestfs_GuestFS.c: In function 'Java_com_redhat_et_libguestfs_GuestFS__1pwrite_1device': com_redhat_et_libguestfs_GuestFS.c:8200:3: warning: pointer targets in passing argument 3 of 'guestfs_pwrite_device' differ in signedness ../src/guestfs.h:881:12: note: expected 'const char *' but argument is of type 'jbyte *' com_redhat_et_libguestfs_GuestFS.c: In function 'Java_com_redhat_et_libguestfs_GuestFS__1mkfs_1opts': com_redhat_et_libguestfs_GuestFS.c:8269:3: warning: 'r...

...4: note: expected 'char * const*' but argument is of type 'const char **' com_redhat_et_libguestfs_GuestFS.c: In function 'Java_com_redhat_et_libguestfs_GuestFS__1pwrite_1device': com_redhat_et_libguestfs_GuestFS.c:8200: warning: pointer targets in passing argument 3 of 'guestfs_pwrite_device' differ in signedness ../src/guestfs.h:877: note: expected 'const char *' but argument is of type 'jbyte *' com_redhat_et_libguestfs_GuestFS.c: In function 'Java_com_redhat_et_libguestfs_GuestFS__1mkfs_1opts': com_redhat_et_libguestfs_GuestFS.c:8269: warning: 'return...

...8: note: expected 'char * const*' but argument is of type 'const char **' com_redhat_et_libguestfs_GuestFS.c: In function 'Java_com_redhat_et_libguestfs_GuestFS__1pwrite_1device': com_redhat_et_libguestfs_GuestFS.c:8200: warning: pointer targets in passing argument 3 of 'guestfs_pwrite_device' differ in signedness ../src/guestfs.h:881: note: expected 'const char *' but argument is of type 'jbyte *' com_redhat_et_libguestfs_GuestFS.c: In function 'Java_com_redhat_et_libguestfs_GuestFS__1mkfs_1opts': com_redhat_et_libguestfs_GuestFS.c:8269: warning: 'return...

...note: expected 'char * const*' but argument is of type 'const char **' com_redhat_et_libguestfs_GuestFS.c: In function 'Java_com_redhat_et_libguestfs_GuestFS__1pwrite_1device': com_redhat_et_libguestfs_GuestFS.c:8200:3: warning: pointer targets in passing argument 3 of 'guestfs_pwrite_device' differ in signedness ../src/guestfs.h:881:12: note: expected 'const char *' but argument is of type 'jbyte *' com_redhat_et_libguestfs_GuestFS.c: In function 'Java_com_redhat_et_libguestfs_GuestFS__1mkfs_1opts': com_redhat_et_libguestfs_GuestFS.c:8269:3: warning: 'r...

...note: expected 'char * const*' but argument is of type 'const char **' com_redhat_et_libguestfs_GuestFS.c: In function 'Java_com_redhat_et_libguestfs_GuestFS__1pwrite_1device': com_redhat_et_libguestfs_GuestFS.c:8200:3: warning: pointer targets in passing argument 3 of 'guestfs_pwrite_device' differ in signedness ../src/guestfs.h:877:12: note: expected 'const char *' but argument is of type 'jbyte *' com_redhat_et_libguestfs_GuestFS.c: In function 'Java_com_redhat_et_libguestfs_GuestFS__1mkfs_1opts': com_redhat_et_libguestfs_GuestFS.c:8269:3: warning: 'r...

...note: expected 'char * const*' but argument is of type 'const char **' com_redhat_et_libguestfs_GuestFS.c: In function 'Java_com_redhat_et_libguestfs_GuestFS__1pwrite_1device': com_redhat_et_libguestfs_GuestFS.c:8275:3: warning: pointer targets in passing argument 3 of 'guestfs_pwrite_device' differ in signedness ../src/guestfs.h:889:12: note: expected 'const char *' but argument is of type 'jbyte *' com_redhat_et_libguestfs_GuestFS.c: In function 'Java_com_redhat_et_libguestfs_GuestFS__1mkfs_1opts': com_redhat_et_libguestfs_GuestFS.c:8344:3: warning: 'r...

...note: expected 'char * const*' but argument is of type 'const char **' com_redhat_et_libguestfs_GuestFS.c: In function 'Java_com_redhat_et_libguestfs_GuestFS__1pwrite_1device': com_redhat_et_libguestfs_GuestFS.c:8200:3: warning: pointer targets in passing argument 3 of 'guestfs_pwrite_device' differ in signedness ../src/guestfs.h:877:12: note: expected 'const char *' but argument is of type 'jbyte *' com_redhat_et_libguestfs_GuestFS.c: In function 'Java_com_redhat_et_libguestfs_GuestFS__1mkfs_1opts': com_redhat_et_libguestfs_GuestFS.c:8269:3: warning: 'r...