Re: [LEDE-DEV] [PATCH 2/7] firmware-tools/ptgen: do not truncate the output file

2018-01-01 Thread John Crispin
On 01/01/18 17:33, Michael Heimpold wrote: Hi John, Am Montag, 1. Januar 2018, 12:12:35 CET schrieb John Crispin: On 21/12/17 23:59, Michael Heimpold wrote: At the moment, the image file operated on is always truncated to 512 bytes. This limits the usage of ptgen somewhat. O_TRUNC

Re: [LEDE-DEV] [PATCH 2/7] firmware-tools/ptgen: do not truncate the output file

2018-01-01 Thread Michael Heimpold
Hi John, Am Montag, 1. Januar 2018, 12:12:35 CET schrieb John Crispin: > > On 21/12/17 23:59, Michael Heimpold wrote: > > At the moment, the image file operated on is always truncated > > to 512 bytes. This limits the usage of ptgen somewhat. > > O_TRUNC truncates to 0 and not 512 ?! when the

Re: [LEDE-DEV] [PATCH 2/7] firmware-tools/ptgen: do not truncate the output file

2018-01-01 Thread John Crispin
On 21/12/17 23:59, Michael Heimpold wrote: At the moment, the image file operated on is always truncated to 512 bytes. This limits the usage of ptgen somewhat. O_TRUNC truncates to 0 and not 512 ?!     John This change allows to use ptgen on existing, larger image files. In this case,

[LEDE-DEV] [PATCH 2/7] firmware-tools/ptgen: do not truncate the output file

2017-12-21 Thread Michael Heimpold
At the moment, the image file operated on is always truncated to 512 bytes. This limits the usage of ptgen somewhat. This change allows to use ptgen on existing, larger image files. In this case, only the partition table is written/updated while the rest of the image file is left alone.