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From: Yuri Horoshkov <hyuv@svitonline.com>
To: community@altlinux.ru
Subject: Re: [Comm] Re: Master 2.4 - instalation CD
Date: Thu, 02 Dec 2004 09:27:02 +0200
Message-ID: <41AEC3C6.3070306@svitonline.com> (raw)
In-Reply-To: <20041201162408.GK4832@osdn.org.ua>

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Michael Shigorin пишет:
> On Wed, Dec 01, 2004 at 05:46:53PM +0200, Yuri Horoshkov wrote:
> 
>>Lafox. Я не могу проверить md5sum, т.к. после вычисления идёт
>>сообщение: md5sum: /dev/cdrom: Input/output error.  Это
>>достаточное основание для "битости" диска?
> 
> 
> Нет.
> 
> Для адекватного получения образа лучше пользоваться readcd из
> cdrtools (readcd dev=0,0 f=image.iso) -- для "голодраного" образа
> шансы на совпадение md5 исчезающе малы.  А упомянутое сообщение
> при прямом чтении без учёта конца носителя -- нормально.
> 
Проделал эту операцию для Instalation CD, результат прилагается.
Мне трудно судить, но этого достаточно, чтобы считать CD "битым"?
-- 
С уважением,
Юрий.

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[root@localhost root]# apt-cache search cdrtools

mkisofs - Creates an image of an ISO9660 filesystem
cdda2wav - A utility for sampling/copying .wav files from digital audio CDs
cdrecord - A command line CD/DVD-Recorder
cdrtools-control - Facilities control for CD/DVD media tools
cdrtools-devel - The libschily SCSI user level transport library
[root@localhost root]# readcd dev=0,0 f=image.iso
Read  speed:  7056 kB/s (CD  40x, DVD  5x).
Write speed:  5645 kB/s (CD  32x, DVD  4x).
Capacity: 357106 Blocks = 714212 kBytes = 697 MBytes = 731 prMB
Sectorsize: 2048 Bytes
Copy from SCSI (0,0,0) disk to file 'image.iso'
end:    357106
readcd: Input/output error. read_g1: scsi sendcmd: no error
CDB:  28 00 00 03 AA 00 00 00 80 00
status: 0x2 (CHECK CONDITION)
Sense Bytes: 70 00 03 00 00 00 00 0A 00 00 00 00 02 00 00 00
Sense Key: 0x3 Medium Error, Segment 0
Sense Code: 0x02 Qual 0x00 (no seek complete) Fru 0x0
Sense flags: Blk 0 (not valid)
cmd finished after 1.992s timeout 40s
readcd: Input/output error. Cannot read source disk
readcd: Retrying from sector 240128.
.................................................................................................................
readcd: Error on sector 240240 corrected after 3 tries. Total of 0 errors.
.~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~
readcd: Input/output error. Error on sector 240241 not corrected. Total of 1 errors.

Time total: 227.028sec
Read 480256.00 kB at 2115.4 kB/sec.
Max corected retry count was 3 (limited to 128).
The following 1 sector(s) could not be read correctly:
240241
[root@localhost root]#

  parent reply	other threads:[~2004-12-02  7:27 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-12-01 13:12 [Comm] " Yuri Horoshkov
2004-12-01 14:28 ` Andriy Dobrovol's'kii
2004-12-01 15:46   ` Yuri Horoshkov
2004-12-01 16:24     ` [Comm] " Michael Shigorin
2004-12-01 16:52       ` Yuri Horoshkov
2004-12-01 16:59         ` Michael Shigorin
2004-12-02  7:27       ` Yuri Horoshkov [this message]
2004-12-02  9:55         ` Michael Shigorin
2004-12-02 13:16           ` Yuri Horoshkov
2004-12-01 14:39 ` [Comm] " Andrey Rahmatullin
2004-12-02  6:58   ` Yuri Horoshkov
2004-12-02  7:46     ` Andrey Rahmatullin
2004-12-02 13:32       ` Yuri Horoshkov
2004-12-02 13:57         ` Yuri Horoshkov

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