packet writing CD bootable?
Hello, i'm new to that list, is it possible to make a bootable packet writing CD? How i can make a CD with first session ISO9660 for booting and a second session formatted in packet writing with UDF or eventually EXT fs? Thank in advance, i hope this is not a faq. Roberto.
On Wed, 2004-04-28 at 11:10, roberto vicini wrote:
Hello, i'm new to that list, is it possible to make a bootable packet writing CD? How i can make a CD with first session ISO9660 for booting and a second session formatted in packet writing with UDF or eventually EXT fs?
Thank in advance, i hope this is not a faq.
Roberto.
I'm not the one with the details here; but at least you'd probably like to hear that the "El Torito" extensions (to ISO9660?) have the first section of a CD-R behaving like a 2.88MB floppy, for booting purposes -- so I don't see why you couldn't have such a hybrid CD. But you'll want to hear the definitive answer from somebody who actually knows. ;> -- grok. -- *** FULL-SPECTRUM FIGHTBACK! ********************************* * No Pasaran! El Pueblo Unido! Support the: * * Venezuelan, Cuban, Colombian (& other) Revolutions: * * For a Federation of Socialist Republics of the Americas! * * U.N.O.: Abolish the Security Council; * * \\\ All Power to the General Assembly!/// * * Smash the IMF, World Bank, WTO, Wall St. & City of London!* * Defeat U.S./NATO Imperialism: * * Support national liberation struggles; * * in the Mid-East, Africa & elsewhere! * * World-Wide General & Rotating National Strikes. * * Rotating Student & Worker Walkouts. * * [Your Ideas Here!] *
grok wrote:
On Wed, 2004-04-28 at 11:10, roberto vicini wrote:
Hello, i'm new to that list, is it possible to make a bootable packet writing CD? How i can make a CD with first session ISO9660 for booting and a second session formatted in packet writing with UDF or eventually EXT fs?
Thank in advance, i hope this is not a faq.
Roberto.
I'm not the one with the details here; but at least you'd probably like to hear that the "El Torito" extensions (to ISO9660?) have the first section of a CD-R behaving like a 2.88MB floppy, for booting purposes -- so I don't see why you couldn't have such a hybrid CD.
But you'll want to hear the definitive answer from somebody who actually knows. ;>
-- grok.
Actually i have made a CD with the first session made with cdrwtool and formatted with ext2 and a second session with bootable iso9660, because the bios search the sector 17 of the first session for booting purpose, i have copied with dd the sector 17 from the iso to the first session (packet writing). this cd is bootable, but i don't know if sector 17 is safe from writing (need a patch?). My goal is make a cd with the first session with iso9660 bootable and a second session with packet writing, but i don't know how to format a second session with cdrwtool (how to indicate the first session start and stop). Roberto.
Hello, i'm new to that list, is it possible to make a bootable packet writing CD? How i can make a CD with first session ISO9660 for booting and a second session formatted in packet writing with UDF or eventually EXT fs?
Thank in advance, i hope this is not a faq.
Roberto.
You can't. The udf filesystem must start at sector 0. You can make a multisession cd width udf on the first session and iso9660 on the second but in order to make it bootable you have to patch mkudffs so that sector 17 is not used by udf and can be overwritten (using dd) with the boot catalog. I know that it works beacuse I have done it once. -- echo 16i[q]sa[ln0=aln56%1F+Pln56/snlbx]sb23C15C85417484EC5E429FD9776Asnlbx|dc;\ echo 16i[APq]sa[ln0=aln5C%1F+Pln5C/snlbx]sb72E28557F7FE184112F53F5FFDsnlbx|dc
On Fri, 2004-04-30 at 11:34, Massimo Dal Zotto wrote:
is it possible to make a bootable packet writing CD? How i can make a CD with first session ISO9660 for booting and a second session formatted in packet writing with UDF or eventually EXT fs?
You can't. The udf filesystem must start at sector 0. You can make a multisession cd width udf on the first session and iso9660 on the second but in order to make it bootable you have to patch mkudffs so that sector 17 is not used by udf and can be overwritten (using dd) with the boot catalog. I know that it works beacuse I have done it once.
Gee. Could this be considered a major oversight of the UDF standard? Could/should a future update of that standard allow for such a boot-image? -- grok. -- *** FULL-SPECTRUM FIGHTBACK! ********************************* * No Pasaran! El Pueblo Unido! Support the: * * Venezuelan, Cuban, Colombian (& other) Revolutions: * * For a Federation of Socialist Republics of the Americas! * * U.N.O.: Abolish the Security Council; * * \\\ All Power to the General Assembly!/// * * Smash the IMF, World Bank, WTO, Wall St. & City of London!* * Defeat U.S./NATO Imperialism: * * Support national liberation struggles; * * in the Mid-East, Africa & elsewhere! * * World-Wide General & Rotating National Strikes. * * Rotating Student & Worker Walkouts. * * [Your Ideas Here!] *
Am Freitag, 30. April 2004 21:03 schrieb grok:
On Fri, 2004-04-30 at 11:34, Massimo Dal Zotto wrote:
is it possible to make a bootable packet writing CD? How i can make a CD with first session ISO9660 for booting and a second session formatted in packet writing with UDF or eventually EXT fs?
You can't. The udf filesystem must start at sector 0. You can make a multisession cd width udf on the first session and iso9660 on the second but in order to make it bootable you have to patch mkudffs so that sector 17 is not used by udf and can be overwritten (using dd) with the boot catalog. I know that it works beacuse I have done it once.
Gee. Could this be considered a major oversight of the UDF standard? Could/should a future update of that standard allow for such a boot-image?
-- grok. ...
Hello grok, hello all great decision to pick up sector 17 for that. Did You ever notice, that rows 13 and 17 are missing in an aeroplane. As a german guy i knew about the number 13, but i was wondering about the number 17. Later i heard, that number 17 is the italian variant of number 13. Conclusion: Italian people don't like bootable CD's. Bye, Emil -- -------------------------------------------------- Emil Stephan, Marktplatz 39, 53773 Hennef, Germany voice: +49-2242-84438 Accelerate Windows: 9.81 m/sec^2 would be adequate
On Sat, 2004-05-01 at 02:48, Emil Stephan wrote:
-- -------------------------------------------------- Emil Stephan, Marktplatz 39, 53773 Hennef, Germany voice: +49-2242-84438 Accelerate Windows: 9.81 m/sec^2 would be adequate
That would be a "defenestration", of course. -- grok.
Am Sonntag, 2. Mai 2004 22:55 schrieb grok:
On Sat, 2004-05-01 at 02:48, Emil Stephan wrote:
-- -------------------------------------------------- Emil Stephan, Marktplatz 39, 53773 Hennef, Germany voice: +49-2242-84438 Accelerate Windows: 9.81 m/sec^2 would be adequate
That would be a "defenestration", of course. ...
Do You think of a dewindowing procedure? Oder meinst Du den Prager Fenstersturz? Bye Emil -- -------------------------------------------------- Emil Stephan, Marktplatz 39, 53773 Hennef, Germany voice: +49-2242-84438 Accelerate Windows: 9.81 m/sec^2 would be adequate
On Mon, 2004-05-03 at 14:21, Emil Stephan wrote:
Accelerate Windows: 9.81 m/sec^2 would be adequate
That would be a "defenestration", of course. ...
Do You think of a dewindowing procedure? Oder meinst Du den Prager Fenstersturz?
Indeed... But if this has happened in Praha, does it mean the Holy Redmond Empire has already begun engaging us in a 30 Years' War -- Part Deux?? Is William "Der Habsburg" Gates threatening us with a Counter-Reformation against the Linux faith??? ;P ciao, -- grok.
Am Dienstag, 4. Mai 2004 17:37 schrieb grok:
On Mon, 2004-05-03 at 14:21, Emil Stephan wrote:
Accelerate Windows: 9.81 m/sec^2 would be adequate
That would be a "defenestration", of course. ...
Do You think of a dewindowing procedure? Oder meinst Du den Prager Fenstersturz?
Indeed...
But if this has happened in Praha, does it mean the Holy Redmond Empire has already begun engaging us in a 30 Years' War -- Part Deux?? Is William "Der Habsburg" Gates threatening us with a Counter-Reformation against the Linux faith??? ;P ...
Hello grok, Hello all so as nowadays many things go faster than 400 years ago, i don't expect such a 30 year's war, but it can be harder just because of this acceleration and easier as well due to better communications nowadays. In the new countries, that have joined the european union some days ago, are many people just using linux because they could not afford that M$oft software. They already know, what linux is about and what it can do to them. That's a great force available to the linux community and it's strong. But we should be be aware, that counter revolutionary threats by the empire can come. In the hope of a westfalian peace (i come from Muenster). Bye, Emil.
ciao, -- grok.
-- -------------------------------------------------- Emil Stephan, Marktplatz 39, 53773 Hennef, Germany voice: +49-2242-84438 Accelerate Windows: 9.81 m/sec^2 would be adequate
On Tue, 2004-05-04 at 12:18, Emil Stephan wrote:
In the new countries, that have joined the european union some days ago, are many people just using linux because they could not afford that M$oft software. They already know, what linux is about and what it can do to them. That's a great force available to the linux community and it's strong.
I myself am quite happy that the Iron Curtain has (surprise) rusted-out -- but not for the reasons the reactionaries have. They should really have been careful for what they have wished: they've bloody well gotten it -- and it will soon enough be shown to be much more than they bargained for... On that note: let us all embrace the GNUtheran Faith. ;P But back to packet-writing: no one has yet responded to my request for help to begin deciphering the (UDF?) filesystem error which produces undeletable files/directories with the date "Dec 31 1969". -- grok.
bootable cdrw.... why not write a small iso session (bootable), then a large one to fill up the second part of the disk. if you have cdmrw support you should beable to randomly write to the cdrw disk, right? right! then create a ext2fs the same size as the second part of the disk & dd it to overwrite the second session. how do you mount it? easy! mount -o loop,offset=sizeoffirstsession /dev/whateva /mnt/session2 i have had success with this about 1 or 2 yrs ago, just as a proof of concept in a lecture i did at a university. btw... i had success with this today on a dvdrw mirroring bootable disk we busy with which made me come back to this post. Regards Nigel Kukard
participants (5)
-
Emil Stephan
-
grok
-
Massimo Dal Zotto
-
Nigel Kukard
-
roberto vicini