zip file with fat format (on linux)

Question

I am trying to import contacts from micro-SD to (non Android) Nokia phone. So I first exported current contacts on micro-SD card in hope that i will be able to modify the exported file and then import it.

Exported file type is Nokia backup file .NBF. it seem it is actually an ordinary zip file.

I can unzip exported .NBF file and modify it (contacts are stored in .vcf - vcard).

However when I zip it and try to import it the phone says file is corrupted.

 

i checked zip files with zipinfo:

Unmodified file:

$ zipinfo Backup001.NBF
Archive:  Backup001.NBF
Zip file size: 3031 bytes, number of entries: 10
-rw-a--     0.0 fat     1160 b- stor 20-Mar-30 11:31 predefhiddenfolder/predefisasettings/usersettings/user_settings.wbxml
dr-x-hs     0.0 fat        0 b- stor 10-Jan-01 00:00 predefhiddenfolder/predefisasettings/usersettings
dr-xahs     0.0 fat        0 b- stor 07-Jan-01 00:00 predefhiddenfolder/predefisasettings
dr-xahs     0.0 fat        0 b- stor 07-Jan-01 00:00 predefhiddenfolder
-rw-a--     0.0 fat      214 b- defN 20-Mar-30 11:31 predefhiddenfolder/backup/WIP/F01
drwxa--     0.0 fat        0 b- defN 20-Mar-30 11:31 predefhiddenfolder/backup/WIP
drwxa--     0.0 fat        0 b- defN 10-Jan-01 00:00 predefhiddenfolder/backup
-rw-a--     0.0 fat      256 b- defN 20-Mar-30 11:31 predefhiddenfolder/backup/WIP/32/contacts/1.vcf
drwxa--     0.0 fat        0 b- defN 20-Mar-30 11:31 predefhiddenfolder/backup/WIP/32/contacts
drwxa--     0.0 fat        0 b- defN 20-Mar-30 11:31 predefhiddenfolder/backup/WIP/32
10 files, 1630 bytes uncompressed, 1409 bytes compressed:  13.6%

then i modify 1.vcf and update Backup001.NBF with:

zip Backup001.NBF -f -r predefhiddenfolder/backup/WIP/32/contacts/1.vcf

Modified:

$ zipinfo Backup001.NBF
Archive:  Backup001.NBF
Zip file size: 2958 bytes, number of entries: 10
-rw-a--     0.0 fat     1160 b- stor 20-Mar-30 11:31 predefhiddenfolder/predefisasettings/usersettings/user_settings.wbxml
dr-x-hs     0.0 fat        0 b- stor 10-Jan-01 00:00 predefhiddenfolder/predefisasettings/usersettings
dr-xahs     0.0 fat        0 b- stor 07-Jan-01 00:00 predefhiddenfolder/predefisasettings
dr-xahs     0.0 fat        0 b- stor 07-Jan-01 00:00 predefhiddenfolder
-rw-a--     0.0 fat      214 b- defN 20-Mar-30 11:31 predefhiddenfolder/backup/WIP/F01
drwxa--     0.0 fat        0 b- defN 20-Mar-30 11:31 predefhiddenfolder/backup/WIP
drwxa--     0.0 fat        0 b- defN 10-Jan-01 00:00 predefhiddenfolder/backup
-rw-r--r--  3.0 unx      208 tx defN 20-Apr-03 01:04 predefhiddenfolder/backup/WIP/32/contacts/1.vcf
drwxa--     0.0 fat        0 b- defN 20-Mar-30 11:31 predefhiddenfolder/backup/WIP/32/contacts
drwxa--     0.0 fat        0 b- defN 20-Mar-30 11:31 predefhiddenfolder/backup/WIP/32
10 files, 1582 bytes uncompressed, 1366 bytes compressed:  13.7%

in this line: -rw-r--r-- 3.0 unx 208 tx defN 20-Apr-03 01:04 predefhiddenfolder/backup/WIP/32/contacts/1.vcf it says that format is 3.0 unx.

is there any way to zip it so format will be 0.0 fat?

 

Edit: added some clarification

Edit: I tried using -k flag as sugessted by @FennecTECH

it looks better but still doesn't work.

$ zipinfo Backup000.NBF
Archive:  Backup000.NBF
Zip file size: 2501 bytes, number of entries: 10
drwx---     2.0 fat        0 bx stor 20-Apr-03 00:37 PREDEFHI/
drwx---     2.0 fat        0 bx stor 20-Apr-03 00:36 PREDEFHI/PREDEFIS/
drwx---     2.0 fat        0 bx stor 20-Apr-03 00:36 PREDEFHI/PREDEFIS/USERSETT/
-rw----     2.0 fat     1160 bx defN 20-Mar-30 11:31 PREDEFHI/PREDEFIS/USERSETT/USER_SET.WBX
drwx---     2.0 fat        0 bx stor 20-Apr-03 00:37 PREDEFHI/BACKUP/
drwx---     2.0 fat        0 bx stor 20-Apr-03 00:37 PREDEFHI/BACKUP/WIP/
drwx---     2.0 fat        0 bx stor 20-Apr-03 00:37 PREDEFHI/BACKUP/WIP/32/
drwx---     2.0 fat        0 bx stor 20-Apr-03 01:04 PREDEFHI/BACKUP/WIP/32/CONTACTS/
-rw----     2.0 fat      208 tx defN 20-Apr-03 01:04 PREDEFHI/BACKUP/WIP/32/CONTACTS/1.VCF
-rw----     2.0 fat      214 bx defN 20-Mar-30 11:31 PREDEFHI/BACKUP/WIP/F01

similar question that didn't solve the problem: https://stackoverflow.com/questions/15033646/compression-method-for-xlsx-with-7z

Answer 1

You can do this with Go:

package main
import (
   "archive/zip"
   "io"
   "os"
)
const creatorFAT = 0
func main() {
   // in
   file, _ := os.Open("in.txt")
   info, _ := file.Stat()
   head, _ := zip.FileInfoHeader(info)
   // default is Unix
   head.CreatorVersion = creatorFAT
   // out
   zipfile, _ := os.Create("out.zip")
   archive := zip.NewWriter(zipfile)
   // write
   writer, _ := archive.CreateHeader(head)
   io.Copy(writer, file)
   archive.Close()
}

Result:

$ zipinfo out.zip
Archive:  out.zip
Zip file size: 151 bytes, number of entries: 1
-rw-rw-rw-  2.0 fat        7 bX stor 20-Apr-02 19:54 in.txt
1 file, 7 bytes uncompressed, 7 bytes compressed:  0.0%

Answer 2

You’ll need to unzip the folder. Then re zip it with the -k option This will get you 2.0 fat. I don't know if this will work but its worth a try. You will need to do it with the command line.

Answer 3

I think the problem is with the user_settings.wbxml file Certain things are supposed to be updated there, probably according to the size of the file or the number of contacts

Answer 4

Let me present my powerful tool that does this automagically https://github.com/pas-calc/nokia-contacts

You might adjust this script to your needs. For python related, you shall stick to from zipfile import ZipFile.