[SLE] Re: [Re: [SLE] Re: [[SLE] BootMagic and SuSE 6.3]]
jan vermeulen <j.vermeulen@hot.A2000.nl> wrote:
With all due respect, I doubt very much that any software can do all that in the mere 464 bytes available for data and code outside the partition table in the confines of the Master Boot Sector (aka Master Boot Record).
They may have a hidden partition somewhere, for the remainder of the code they need, and this should show under close examination of the used disk space.
There are hardware parameters that can not be ignored.
I fired off an email to Blue Sky's tech support to ask them the above question. Here is their response: "The Master Boot Record is more than 1 sector. On large drives, you can have up to 63 sectors (31.6KBytes) of space to play with. Which is a lot, if you write tight code." ____________________________________________________________________ Get free email and a permanent address at http://www.amexmail.com/?A=1 -- To unsubscribe send e-mail to suse-linux-e-unsubscribe@suse.com For additional commands send e-mail to suse-linux-e-help@suse.com Also check the FAQ at http://www.suse.com/Support/Doku/FAQ/
"Jeffery S.Norman" wrote:
I fired off an email to Blue Sky's tech support to ask them the above question. Here is their response:
"The Master Boot Record is more than 1 sector. On large drives, you can have up to 63 sectors (31.6KBytes) of space to play with. Which is a lot, if you write tight code."
Jeffery, they may call it what they like, but that does not make it the real thing. The following description from a 1997 Linux NG spells it all out: ===[ begin quote ]=== The partition table is a small block of data at the end of the master boot record (the MBR). It's about 40 bytes long and has enough for 4 entries. These are the "primary" partitions. One of them may be marked "active" that is will be the partition that is "booted" by default. One of the partitions may be an "extended" partition -- which is a pointer to another partition table on the same hard disk. The rest of the MBR (512 bytes total) which precedes the partition table is a section of real mode machine code called the 'boot loader'. ====[ end quote ]==== What Blue Sky do is claim the entire track 0 on the first HD and call that the MBR. Which is simply not correct. Jan -- To unsubscribe send e-mail to suse-linux-e-unsubscribe@suse.com For additional commands send e-mail to suse-linux-e-help@suse.com Also check the FAQ at http://www.suse.com/Support/Doku/FAQ/
participants (2)
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j.vermeulen@hot.A2000.nl
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jeffery_norman@usa.net