[j-nsp] problems with compact-flash

[Guy Davies]

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Hi Kurt,

Have you tried rebuilding the box from a PCMCIA card?  That totally
formats the disk (both hard and flash).  If, after that, you still
find it is booting from alternative-media, then I suggest a call to
JTAC and they'll help you organise a replacement.  If you have a
support contract covering that box, then you should either get an
advanced replacement or you'll have to return the RE and await its
repair/replacement and return to you.

Hope that helps.

Guy

> -----Original Message-----
> From: Kurt Bauer [mailto:kb70@aon.at]
> Sent: Thursday, October 03, 2002 2:47 PM
> To: Juniper-list
> Subject: [j-nsp] problems with compact-flash
> 
> 
> Hi list,
> 
> I have the following, rather serious, problem with a M5:
> 
> After a power-loss it is no longer possible to boot from 
> compact flash,
> the router hangs in the middle of the boot process, right after the
> tw lines, which say:
> fxp0: .....
> fxp1: .....
> 
> When I boot from Harddisk it works fine, but I cannot see the
> compact-flash when I make 'show system storage':
> 
> Filesystem  1K-blocks     Used    Avail Capacity  Mounted on
> /dev/ad1s1a     73255    25162    42233    37%    /
> devfs              16       16        0   100%    /dev/
> /dev/vn0         9828     9828        0   100%   
> /packages/mnt/jbase devfs              16       16        0   100% 
>   /dev/
> /dev/vn1        16006    16006        0   100%   
> /packages/mnt/jkernel-5.4R2.4
> /dev/vn2        20224    20224        0   100%   
> /packages/mnt/jpfe-5.4R2.4
> /dev/vn3         1370     1370        0   100%   
> /packages/mnt/jdocs-5.4R2.4
> /dev/vn4         7794     7794        0   100%   
> /packages/mnt/jroute-5.4R2.4
> mfs:122        762223        3   701243     0%    /tmp
> /dev/ad1s1e     17703        6    16281     0%    /config
> procfs              4        4        0   100%    /proc
> /dev/ad1s1f   7156052    99045  6484523     2%    /var
> 
> 
> I tried a few things in the shell, with the following results:
> 
> -) It's not possible to mount the flash:
>    mount: /dev/ad0: Operation not permitted
> 
> -) 'fdisk /dev/ad0' gives the following:
> ******* Working on device /dev/ad0 *******
> parameters extracted from in-core disklabel are:
> cylinders=734 heads=8 sectors/track=32 (256 blks/cyl)
> 
> parameters to be used for BIOS calculations are:
> cylinders=734 heads=8 sectors/track=32 (256 blks/cyl)
> 
> Media sector size is 512
> Warning: BIOS sector numbering starts with sector 1
> Information from DOS bootblock is:
> The data for partition 1 is:
> sysid 165,(FreeBSD/NetBSD/386BSD)
>     start 0, size 187904 (91 Meg), flag 80 (active)
> 	beg: cyl 0/ sector 1/ head 0;
> 	end: cyl 733/ sector 32/ head 7
> The data for partition 2 is:
> <UNUSED>
> The data for partition 3 is:
> <UNUSED>
> The data for partition 4 is:
> <UNUSED>
> 
> -) and finally, 'fsck /dev/ad0' gives the following:
> ** /dev/ad0
> ** Last Mounted on /mnt
> ** Phase 1 - Check Blocks and Sizes
> 
> CANNOT READ: BLK 65600
> CONTINUE? [yn] y
> 
> THE FOLLOWING DISK SECTORS COULD NOT BE READ: 65600, 65601, 65602,
> 65610, 65611,
> ** Phase 2 - Check Pathnames
> ** Phase 3 - Check Connectivity
> ** Phase 4 - Check Reference Counts
> ** Phase 5 - Check Cyl groups
> 1822 files, 43045 used, 29658 free (42 frags, 3702 blocks, 0.1%
> fragmentation)
> 
> ***** FILE SYSTEM STILL DIRTY *****
> 
> ***** PLEASE RERUN FSCK *****
> 
> 
> As it seems, there are some none repairable sectors, is it somehow
> possible to bypass them, e.g. reformat the flash, making a new
> filesystem or something like this ??
> 
> 
> And if yes, which is the best way to get the software back from the
> harddisk to the flash ??
> 
> 
> Or if nothing helps, which hardware part do I have to 
> replace, hopefully
> not the entire routing engine or the FEB.
> 
> 
> TIA for your help,
> 
> best regards,
> 
> Kurt
> 
> _______________________________________________
> juniper-nsp mailing list juniper-nsp@puck.nether.net
> http://puck.nether.net/mailman/listinfo/juniper-nsp
> 

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